СПОСОБ И УСТРОЙСТВО ДЛЯ ОЧИСТКИ СТОКОВ ЖИВОТНОВОДЧЕСКИХ ХОЗЯЙСТВ

ЖИДКОСТНОЕ ФИЛЬТРАЦИОННОЕ УСТРОЙСТВО

... 1. Фильтрационное устройство для фильтрации жидкости пропусканием ее через одну или более фильтрующих сред, причем фильтрационное устройство содержит картридж, определяющий зону обработки, заполненную указанными одной или более фильтрующей средой; впуск для жидкости; выпуск для жидкости; и запорный механизм, размещенный внутри жидкостного протока через картридж и выполненный с возможностью запирания по меньшей мере одного из впуска для жидкости и выпуска для жидкости по истечении срока службы указанной по меньшей мере одной фильтрующей среды, причем указанный запорный механизм содержит механический узел, содержащий блокирующий элемент, соединитель и разрушаемый элемент; причем указанный разрушаемый элемент сформирован из композиции, выбранной так, что она разрушается в результате воздействия жидкости и тем самым сокращает свой объем; причем блокирующий элемент имеет незапирающее и запирающее положение и может смещаться между двумя положениями, причем указанный блокирующий элемент смещается ...

Filterkartusche sowie Filtereinrichtung

Filterkartusche (5) mit einem Gehäuse, das eine umlaufende Seitenwand (8) aufweist, welche ein mindestens teilweise mit einem Filtergranulat (15) gefülltes Filtervolumen umgibt sowie eine mit Oeffnungen versehene erste Querwand, welche das Filtervolumen an einem Zuflussbereich verschliesst und eine von der ersten Querwand beabstandete, ebenfalls mit Oeffnungen versehene zweite Querwand, welche das Filtervolumen an einem Abflussbereich verschliesst sowie einen von der zweiten Querwand zu einer Ausströmöffnung (13) führenden Stutzen (12), dadurch gekennzeichnet, dass der Stutzen (12) mit mindestens einer eine Aussenseite der Filterkartusche (5) mit der Ausströmöffnung (13) verbindenden Überbrückungsöffnung (14) versehen ist.

Immersed active infrared self-cleaning secondary sedimentation tank sludge blanket induction device and application method thereof

An immersed infrared self-cleaning secondary sedimentation tank sludge induction device comprises: an upper (1) and lower sleeve (2) connected to form a communicated inner cavity. A set of infrared emitters (3) and receivers (4) are located on an inner wall of the upper sleeve and are oppositely arranged. A transparent hard ring (5) is annularly adhered to front sides of the infrared emitters and the infrared receivers. A push rod assembly moveable up and down in the inner cavity is used for cleaning the transparent hard ring. A sludge outlet hole (101) and a water outlet hole (102) located below the sludge outlet hole are arranged on the upper sleeve. A bearing plate (201) is arranged in the inner cavity of the lower sleeve. A clean water cavity (202) is arranged below the bearing plate. A water inlet hole (203) and feeding hole (204) are connected with a water outlet hole through a cleaning pipe (6) and is arranged on the clean water cavity. A sludge inlet cavity (206) with a sludge inlet ...

Apparatus and method for biological sewage treatment

Apparatus and method for biological sewage treatment

Apparatus and method for biological sewage treatment

DEVICE FOR SEWAGE TREATMENT

An apparatus for degrading the organic fraction of sewage by means of active biomass, in particular active sludge particles, comprising: - at least one tank (1) adapted to contain the sewage and said active biomass; - at least one hollow structure (6, 106, 206), adapted to be at least partially immersed in the sewage, provided with at least one first opening (61) for letting in the sewage and with at least one second opening (62) for letting out the sewage, wherein the ratio between the area of the at least one first opening (61) and the area of the at least one second opening (62) is equal to at least 5:1; - air delivery means (7, 70) adapted to introduce air inside said at least one structure (6, 106, 206); wherein said at least one first opening (61) is proximal to said air delivery means (7, 70) and said at least one second opening (62) is distal from said air delivery means (7, 70), so that the air delivery means (7, 70) are adapted to generate a flow of sewage from said at least one ...

WATER DISTRIBUTION SYSTEM WITH DUAL USE WATER TREATMENT UNIT

Filter cartridge and filter device.

Die Erfindung betrifft eine Filterkartusche und eine Filtereinrichtung zur Reinigung von Wasser in technischen Kreisläufen. Eine Filterkartusche (5) mit einem Gehäuse, das ein zu ca. 80% von einem Filtergranulat (15) gefülltes Filtervolumen umschliesst, ist mit einem in einer Ausströmöffnung (13) endenden Stutzen (12) in einen Verbindungsstutzen (7) eines Anschlussstücks (1), der mit einer von einem zweiten Anschlussstutzen (3) gebildeten Abflussleitung verbunden ist, eingeschraubt und von einer mit diesem verschraubten Hülse (4) mit Abstand umgeben. Eine von einem ersten Anschlussstutzen (2) gebildete Zuflussleitung mündet in ein zwischen der Hülse (4) und der Aussenseite der Filterkartusche (5) liegendes Zwischenvolumen (6), sodass Rohwasser über dasselbe und durch den von Schlitzen (10) durchbrochenen Boden (9), das Filtergranulat (15), den ebenfalls geschlitzten Zwischenboden (11) und den Stutzen (12) in die Abflussleitung gelangt. Zwecks Verringerung des Strömungswiderstands ist der ...

Filter cartridge and filter device.

Die Erfindung betrifft eine Filterkartusche und eine Filtereinrichtung zur Reinigung von Wasser in technischen Kreisläufen. Eine Filterkartusche (5) mit einem Gehäuse, das ein zu ca. 80% von einem Filtergranulat (15) gefülltes Filtervolumen umschliesst, ist mit einem in einer Ausströmöffnung (13) endenden Stutzen (12) in einen Verbindungsstutzen (7) eines Anschlussstücks (1), der mit einer von einem zweiten Anschlusstutzen (3) gebildeten Abflussleitung verbunden ist, eingeschraubt und von einer mit diesem verschraubten Hülse (4) mit Abstand umgeben. Eine von einem ersten Anschlussstutzen (2) gebildete Zuflussleitung mündet in ein zwischen der Hülse (4) und der Aussenseite der Filterkartusche (5) liegendes Zwischenvolumen (6), sodass Rohwasser über dasselbe und durch den von Schlitzen (10) durchbrochenen Boden (9), das Filtergranulat (15), den ebenfalls geschlitzten Zwischenboden (11) und den Stutzen (12) in die Abflussleitung gelangt. Zwecks Verringerung des Strömungswiderstands ist der ...

DEVICE AND METHOD OF BIOLOGICAL PURIFICATION OF WASTE WATER

Sludge self-refluxing anaerobic reactor

Wastewater concentration system and method capable of realizing circulation of natural discharged water of hot flue gas

Towerless deaerator

WATER TREATMENT DEVICE

Disclosed is a water treatment device such as a water purifier. In particular, a water treatment device capable of producing sterilizing water is disclosed. The device includes a sterilizing water producing module for electrolyzing raw water to produce sterilizing water, wherein the sterilizing water producing module includes a plurality of first electrodes and a plurality of second electrodes arranged alternately with each other and spaced from each other, wherein the first and second electrodes have opposite polarities to each other, wherein a polarity of each of the first electrode and the second electrode is switchable to between a positive potential and a negative potential, such that the sterilizing water producing module operates such that a positive potential operation and a negative potential operation are alternately repeated, wherein a magnitude of voltage or current applied to the sterilizing water producing module under the negative potential operation is smaller than a magnitude ...

Magnetenergiereiniger für Luft und Wasser

Magnetenergiereiniger für Luft und Wasser, der zur Verbindung mit einem Einlauf, der eine hohe Strömungsgeschwindigkeit hat, verwendet wird, um die Magnetisierungsbehandlung von Wasser oder Luft durchzuführen um einen gleichen hohen Wirkungsgrad der Magnetisierung zu erhalten, wobei der Magnetenergiereiniger (5) eine Basis (1) aufweist, die an allen Seiten jeweils mindestens einen vertieften Abschnitt (11) besitzt, der nach außen offen ist, um die Magnete (12) in der entsprechenden Form und Anzahl einzupassen, wobei die Magnete (12) durch eine Vielzahl von Sperrelementen (13) mit der entsprechenden Breite in der Basis (1) begrenzt werden, wobei in der Mitte der Basis (1) ein längsverlaufender Führungsraum (14) vorgesehen ist, wodurch ein magnetisch leitender Einheitsblock (2) gebildet ist, dadurch gekennzeichnet, dass das obere und untere Ende der Basis (1)jeweils ein nach innen vertieftes Führungsende (15) bilden, das mit dem Führungsraum (14) in der Mitte in Verbindung steht, wobei der ...

Devices and methods for the remediation of groundwater

Water purification device comprising a gravity- fed filter

The present invention relates to water purification devices, particularly to gravity- fed water purification devices that operate without electricity and pressurised water. The invention relates to a gravity- fed water purification device comprising a chamber (3) that has the sediment filter (6), also has a compartment (7) that surrounds the sediment filter (6). The compartment (7) has sidewalls (16) rising upwardly from bottom of the chamber (3) to define an open top with a rim having a notch (7a). The compartment (7) is spaced apart from the walls of the chamber (3) to define a space around the compartment (7). Preferred devices were surprisingly found to solve the problem of tapering -off of the flow- rate from the device over a period of use, and the need to frequently back wash the carbon block filter (9), particularly under conditions of poor water quality and at the same time provide the required residence time for the chemical purifying agent to act on the pathogens.

Liquid filter device

Provided is a filter device for filtering liquid by passing it through one or more filtering media. The filter device comprises a cartridge defining a treatment region filled with said one or more filtering media and has a liquid inlet and a liquid outlet. A locking mechanism may be located within a liquid flow through the cartridge and configured to lock at least one of the liquid inlet and the liquid outlet upon expiration of life time of said at least one filtering medium.

Method and means for diluting or concentrating solutions, applied to processes for the desalination of water

The invention relates to a method and means for diluting or concentrating solutions, applied to processes for the desalination of water, characterised by being carried out on the basis of a borehole (4) in permeable coastal land, where two internal wells (5, 6) are installed producing three channels that are interconnected at the bottom, by means of a membrane packet (9), disposed such that the supply flow towards the membranes and provided via the borehole (4) flows in a downward direction, generated, using the principle of communicating vessels, by the suction of a motor pump (7) installed at a shallow depth inside the well of the concentrate (5), with an ascending flow, pouring same to the marine outlet and the diluted flow (permeate) drains to the second well (6), which is hollow and at atmospheric pressure, where a motor pump (8) extracts the permeate for the use thereof. The method can be used for dilution and/or concentration with minimal energy costs, both on land and on the sea ...

METHOD AND DEVICE FOR BIOLOGICAL WASTE WATER PURIFICATION

The present invention relates to a method for carrying out biological purification of wastewater with the aid of activated sludge in a sewage treatment plant, the sewage treatment plant comprising: an activated sludge tank that can be ventilated (B tank), at least two sedimentation and recirculation tanks (SU tanks), and a tank for biological phosphor elimination (P tank), wherein the P tank is hydraulically connected with the B tank via one or more openings, wherein the B tank is divided into two tanks B1 and B2 (B1 tank and B2 tank) which are hydraulically connectable via the P tank, wherein each of the B1 tank and the B2 tank is continuously connected hydraulically to at least one SU tank, wherein the P tank comprises closure means to cut off the hydraulic connection between the P tank and the B1 tank and/or the B2 tank, and wherein each of the SU tanks comprises an overflow unit for draining the excess water in the sewage treatment plant, wherein in the event of an emergency, the hydraulic ...

DEVICE FOR CLEANING WATER, CONTAINING GRAVITY FILTER

Improved A<2>O and sulphur autotrophy joint nitrogen and phosphorus removal reactor and sewage treatment method

WASTE WATER RECYCLE PLANT GRAY OF A BUILDING FOR SUPPLYING FLUSHING OCCURS

Installation (1) de recyclage pour traiter des eaux usées (3) en provenance de salles de bain ou de cuisines d'un immeuble, et pour produire une eau traitée et filtrée (7), comprenant au moins : - au moins une entrée principale (E), - un circuit de traitement (11) pour produire une eau traitée (15), et - une unité de post-filtration (13) adaptée pour filtrer l'eau traitée (15) et produire l'eau traitée et filtrée (7), le circuit de traitement comportant : - une unité de désinfection (35), - une unité de coagulation (45), - au moins une unité de filtration (39) pour obtenir l'eau traitée, - une unité de test (41) pour mesurer un ou plusieurs paramètres représentatifs de la qualité de l'eau traitée, et - un système répartiteur (43) adapté pour conserver l'eau traitée et testée dans le circuit de traitement (11) ou l'envoyer vers l'unité de post-filtration (13) en fonction du ou des paramètres mesuré(s).

Methods for variably sterilizing aqueous liquids

A method for flow-through aqueous liquid sterilization which employs apparatus operating at substantially fixed temperatures and pressures and variable flow rates through the apparatus for controllably processing aqueous liquids to achieve predetermined values of Sterility Assurance Levels (SAL's).

Method and Device for Biological Waste Water Purification

The present invention relates to a method for carrying out biological purification of wastewater with the aid of activated sludge in a sewage treatment plant, the sewage treatment plant comprising: an activated sludge tank that can be ventilated (B tank), at least two sedimentation and recirculation tanks (SU tanks), and a tank for biological phosphor elimination (P tank), wherein the P tank is hydraulically connected with the B tank via one or more openings, wherein the B tank is divided into two tanks B1 and B2 (B1 tank and B2 tank) which are hydraulically connectable via the P tank, wherein each of the B1 tank and the B2 tank is continuously connected hydraulically to at least one SU tank, wherein the P tank comprises closure means to cut off the hydraulic connection between the P tank and the B1 tank and/or the B2 tank, and wherein each of the SU tanks comprises an overflow unit for draining the excess water in the sewage treatment plant, wherein in the event of an emergency, the hydraulic ...

Automated Waste Water Treatment

A waste water filtration system filters polluted waste water from various waste water sources including fire sprinkler systems and fire hydrants. The system may be connected by a pipe or hose to a fire sprinkle system riser or stand pipe. The filtering system includes a stainer to capture large particles, a fine particle filter to capture small particles, and may include a chemically selective sponge to capture, for example, oil, and destroy bacteria, when necessary. A switch senses the presence of liquid and turns on a pump when required to advances liquid through the fine particle filter. The filtering system preferably allows compliance with NFPA Standards, California State Fire Marshal's and the California Water Resources Board Best Management Practices (BMP) for maintaining fire sprinkler systems, and Federal Clean Water laws, Federal Coastal Zone laws, and local city ordinances for releasing liquids into storm drains.

WATER TREATMENT SYSTEM WITH DISINFECTANTS

A water treatment system (1) for a reservoir (3) of water (5) including a mixing unit (2) located outside of the reservoir (3) and in an overall flow path of water from the reservoir (3) to and through the mixing unit (2) and back into the reservoir water (5). The mixing unit (2) is operable in three disinfectant modes that selectively add (a) chlorine, (b) ammonia, or (c) a blended mixture of chlorine and ammonia forming chloramines into the water returning to the reservoir (3). The mixing unit (2) also has hard and soft flush modes. In the hard flush mode, water (5) from the reservoir (3) is continually moved to flush through the mixing unit (2) and back to the reservoir (3). In the soft flush mode, the incoming hard water (5) from the reservoir (3) is softened to remove calcium and other minerals before passing through the mixing unit (2) and back to the reservoir (3) to reduce the undesirable build up of mineral deposits in the mixing unit (2).

СПОСОБ И УСТРОЙСТВО ДЛЯ ОЧИСТКИ СТОЧНЫХ ВОД ЖИВОТНОВОДЧЕСКИХ ХОЗЯЙСТВ

Группа изобретений может быть использована в очистке сточных вод животноводческих хозяйств, в частности стоков от хозяйств, содержащих крупный рогатый скот, или от свиноферм. Устройство для очистки ежедневного объема сточных вод животноводческих хозяйств включает коллекторный резервуар (1), канал предварительной обработки (2), анаэробный последовательно-циклический реактор (ASBR) (3), аэробный реактор с мешалкой (4), представляющий собой последовательно-циклический реактор (SBR), отстойник для компоста (5). Способ очистки сточных вод животноводческих хозяйств включает i) сбор неочищенных жидких отходов, ii) передачу неочищенных жидких отходов в проточный канал (2) с добавлением предварительно очищенных сточных вод, iii) передачу предварительно очищенных сточных вод в ASBR (3), SBR (4) и в отстойник для компоста (5), где предварительно очищенные сточные воды перемешивают с отходами целлюлозы и получают компост; iv) разделение части переданных предварительно очищенных сточных вод с подачей ...

ЖИДКОСТНОЕ ФИЛЬТРАЦИОННОЕ УСТРОЙСТВО

Изобретение предназначено для фильтрации. Фильтрационное устройство содержит картридж, определяющий зону обработки, заполненную одной или более фильтрующей средой; впуск для жидкости; выпуск для жидкости; и запорный механизм, размещенный внутри жидкостного протока через картридж и выполненный с возможностью запирания по меньшей мере одного из впуска для жидкости и выпуска для жидкости по истечении срока службы указанной по меньшей мере одной фильтрующей среды. Запорный механизм содержит механический узел, содержащий блокирующий элемент, соединитель и разрушаемый элемент. Разрушаемый элемент сформирован из композиции, выбранной так, что она разрушается в результате воздействия жидкости и тем самым сокращает свой объем. Блокирующий элемент имеет незапирающее и запирающее положение и может смещаться между двумя положениями, причем он смещается в запирающее положение и удерживается в незапирающем положении соединителем. Соединитель одним своим концом соединен с указанным разрушаемым элементом ...

Kartusche zur Trinkwasseraufbereitung sowie Verfahren zur Aufbereitung von Trinkwasser

Die Erfindung betrifft eine Kartusche zur Trinkwasseraufbereitung mit zwei Kammern, bei der eine Kammer mit stark saurem und eine weitere Kammer mit schwach saurem Ionenaustauschermaterial gefüllt ist, wobei eines der Ionenaustauschermaterialien mit Alkali- oder Erdalkaliionen beladen ist.

Environmentally friendly water intake and pretreatments system

Cartridge for water purifier, and water purifier

Provided is a cartridge 4 for a water purifier, the cartridge 4 being configured so as to prevent the breakage of activated carbon 8 caused by water hammer or high water pressure occurring when raw water discharge is switched to purified water discharge. This cartridge 4 for a water purifier is accommodated in a replaceable manner within the accommodation section 5 of the water purifier 1. The cartridge 4 has activated carbon 8 for removing impurities from water. The water purifier 1 has formed therein: a raw water flow passage through which raw water flows downstream without passing through the activated carbon 8; and a purified water flow passage through which raw water flows downstream, passing through the activated carbon 8. The water purifier 1 has a damping section 10d located downstream of the activated carbon 8 and upstream of flow passage switching valves 15, 16 for switching between discharge from the raw water flow passage and discharge from the purified water flow passage, the ...

PROCESS AND FACILITY FOR THE TREATMENT OF LIVESTOCK WASTE

The invention provides an efficient system for treating livestock waste, particularly waste from cattle or pig farming. The new facility and method employ special transfers of slurry streams through ASBR, SBR, and a unique pretreatment reactor, resulting in treated water, quality compost, and biogas.

IFS AND GRIT BOX FOR WATER CLARIFICATION SYSTEMS

An influent feed system to classify and separate particulate matter and solvated materials from an influent stream includes one or more influent feed troughs in fluid communication with a clarification tank. One or more grit boxes are in fluid communication with the one or more influent feed troughs. The one or more grit boxes include a hopper for accumulation of materials to be deposited. The hopper has a drainage pipe and a valve that controls communication of materials between the influent feed system and the drainage pipe. A mechanism delivers the influent stream at a predetermined and a substantially constant flow rate. The influent stream is separated into two or more streams and recombined under pressure in the grit boxes. A grit box to classify and separate particulate matter and solvated materials from an influent stream is also described.

LIQUID FILTER DEVICE

Provided is a filter device for filtering liquid by passing it through one or more filtering media. The filter device comprises a cartridge defining a treatment region filled with said one or more filtering media and has a liquid inlet and a liquid outlet. A locking mechanism may be located within a liquid flow through the cartridge and configured to lock at least one of the liquid inlet and the liquid outlet upon expiration of life time of said at least one filtering medium.

PROCESS FOR TREATING WATER TO BE TREATED BY CLARIFICATION COMPRISING AN ADSORPTION OF A PORTION OF CLARIFIED WATER AND A CLARIFICATION OF A MIXTURE OF ADSORBED CLARIFIED WATER ANDWATER TO BE TREATED

Process for treating water to be treated by clarification comprising an adsorption of a portion of clarified water and a clarification of a mixture of adsorbed clarified water and water to be treated The invention pertains to a process for treating water to be treated comprising: - a step for clarifying said water to be treated producing a clarified water; - a step for placing a part of said clarified water in contact with a powdered adsorbent reagent producing a mixture of clarified water and powdered adsorbent reagent; - a step for mixing said mixture with said water to be treated; - a step for discharging the remainder of the clarified water.

Active water preparation method, preparation device and using method of preparation device

Liquid filter device

METHODS AND SYSTEMS FOR SEWAGE SLUDGE TREATMENT

The present invention provides methods for increasing soluble chemical oxygen demand (sCOD) in sewage sludge. These methods include passing the sewage sludge through one or more devices that contains (a) a hollow body provided with a straight-through passage of substantially constant cross-section, the passage having an inlet end and an outlet end for the entry and discharge respectively of the sewage sludge, (b) a transport fluid nozzle substantially circumscribing and opening into the passage intermediate the inlet and outlet ends thereof, (c) a transport fluid inlet communicating with the transport fluid nozzle for the introduction of a transport fluid, and (d) a mixing chamber being formed within the passage downstream of the transport fluid nozzle. The sewage sludge is then passed through a digester.

LIQUID FILTER DEVICE

Provided is a filter device for filtering liquid by passing it through one or more filtering media. The filter device comprises a cartridge defining a treatment region filled with said one or more filtering media and has a liquid inlet and a liquid outlet. A locking mechanism may be located within a liquid flow through the cartridge and configured to lock at least one of the liquid inlet and the liquid outlet upon expiration of life time of said at least one filtering medium.

LIQUID PURIFICATION PROCESSES, SYSTEMS THEREFOR, AND COMPONENTS THEREOF

Processes and systems suitable for purifying or otherwise treating liquids to remove contaminants therein, including but not limited to purifying contaminated water to render the water suitable for human consumption, bathing, etc. Such a process and system entail the use of a purification system that heats a liquid from the feedstock to yield a more purified form of the liquid. The purification system can be operated to selectively process the feedstock through any of a series of vessels at which different amounts and/or contaminants may be removed from the feedstock.

CONTROL METHOD OF FLOCCULATION WASHING MACHINE, AND WASHING MACHINE

A control method of a flocculation washing machine comprises: detecting an amount of washing water V and an amount of a detergent delivered m in a washing procedure to obtain a concentration of the detergent C=m/V; and determining a number of times N of flocculation circulation and a dose Mn of a flocculant corresponding to each flocculation circulation according to the concentration of the detergent C. The number of times N of flocculation circulation and the dose Mn of the flocculant corresponding to each flocculation circulation can be obtained accurately only based on one parameter. Besides, the flocculation treatment and the rinsing procedure of the washing machine are synchronously executed, and at an end node, the concentration of the detergent in the outer drum is lower than a set value, thereby achieving the purpose of removing detergent residual on clothes.

Method and system for treating high salinity water

The present application is relate to a method and system for treating high salinity water, comprising the following steps: step 1, by a first membrane concentration unit, concentrating the raw water; step 2, with the assistance of a crystallization initiation unit, mixing the raw water concentrated, initiating crystallization by a seed crystal, and, discharging precipitated crystals; step 3, with the assistance of a crystallization termination unit, firstly, introducing the resulting water of the crystallization initiation unit, then, terminating crystallization, secondly, discharging precipitated miscellaneous salts; step 4, with the assistance of a mechanical filter unit, the liquid to discharged from the crystallization termination unit flowing through the mechanical filter unit, removing the residual seed crystal and floccules; step 6, with the assistance of a second membrane concentration unit, the concentrated salinity water entering the second membrane concentration unit for concentration ...

Sewage treatment plant with siphon overflow

Die Erfindung betrifft eine Kläranlage (1) nach dem quasi-geschlossenen Aufstaubetrieb, aufweisend ein Vorklärbecken (2), ein Reaktorbecken (3) und einen Überlauf (6) vom Vorklärbecken in das Reaktorbecken, um vorgeklärtes Abwasser in das Reaktorbecken fließen zu lassen, wobei der Überlauf als Siphonvorrichtung (6) ausgebildet ist, die an eine Druckluftleitung (7) gekoppelt ist, wobei die Siphonvorrichtung (6) über die Druckluftleitung (7) belüftbar ist, um eine Luftblase (10) in der Siphonvorrichtung auszubilden, welche den Überlauf des vorgeklärten Abwassers aus dem Vorklärbecken in das Reaktorbecken unterbindet, und wobei die Siphonvorrichtung (6) über die Druckluftleitung (7) entlüftbar ist, um die Luftblase (10) aus der Siphonvorrichtung ablassen zu können, so dass der Überlauf des vorgeklärten Abwassers ermöglicht wird.

ФИЛЬТР И УСТРОЙСТВО ФИЛЬТРОВАНИЯ ВОДЫ, СОДЕРЖАЩЕЕ ФИЛЬТР

Изобретение относится к фильтру, предназначенному для использования в устройстве фильтрования воды. Устройство фильтрования воды содержит фильтр, имеющий, в целом, плоский профиль. Устройство фильтрования воды содержит контейнер, предназначенный для фильтрованной воды, приемную воронку, предназначенную для установки в контейнер и для приема нефильтрованной воды. Фильтр выполнен с возможностью установки в приемную воронку для фильтрования воды, подаваемой в приемную воронку. Фильтр образует выход из приемной воронки, через который фильтрованная вода попадает в контейнер. Фильтр составляет дно приемной воронки, так что фильтрование воды происходит по всей площади дна приемной воронки. Фильтр содержит корпус, имеющий вход для приема воды, которую необходимо профильтровать, и выход для выдачи фильтрованной воды, причем между входом и выходом содержится фильтрующая среда. Фильтрующая воду среда содержит слой ионообменной смолы и слой материала, наполненного активированным углем, причем эти слои ...

Wastewater overflow systems and methods

Systems and methods for treating a wastewater are provided. The wastewater treatment system and methods allows for effective treatment of wastewater during conditions that may cause increased wastewater flow to the system.

Method and means for diluting or concentrating solutions, applied to processes for the desalination of water

The invention relates to a method and means for diluting or concentrating solutions, applied to processes for the desalination of water, characterised by being carried out on the basis of a borehole (4) in permeable coastal land, where two internal wells (5, 6) are installed producing three channels that are interconnected at the bottom, by means of a membrane packet (9), disposed such that the supply flow towards the membranes and provided via the borehole (4) flows in a downward direction, generated, using the principle of communicating vessels, by the suction of a motor pump (7) installed at a shallow depth inside the well of the concentrate (5), with an ascending flow, pouring same to the marine outlet and the diluted flow (permeate) drains to the second well (6), which is hollow and at atmospheric pressure, where a motor pump (8) extracts the permeate for the use thereof. The method can be used for dilution and/or concentration with minimal energy costs, both on land and on the sea ...

DEVICES AND METHODS FOR THE REMEDIATION OF GROUNDWATER

Provided herein are devices, systems, and methods for removing contaminant ions from water within an aquifer. The devices, systems, methods employ an elecrokinetic driving force to induce the migration of charged species towards electrodes, where they can be concentrated and removed from the aquifer. In this way, the devices, systems, methods described herein can be used to economically remediate groundwater contaminated with charged species.

WASTEWATER OVERFLOW SYSTEMS AND METHODS

Systems and methods for treating a wastewater are provided. The wastewater treatment system and methods allows for effective treatment of wastewater during conditions that may cause increased wastewater flow to the system.

METHOD FOR TREATING WATER BY CLARIFYING TREATMENT COMPRISING AN ADSORPTION OF A PORTION OF WATER AND CLARIFIED CLARIFICATION, A MIXTURE OF WATER AND CLARIFIED ADSORBED WATER TO BE TREATED

GAS-LIQUID-SOLID SEPARATOR

A gas-liquid-solid separator can include a separator body having a vertical outer wall and a gas collector having a vertical gas collector wall surrounded by the outer wall, with a gas inlet opening at a bottom of the gas collector. An annular volume between the gas collector wall and the outer wall can contain a plurality of inclined flow channels. The flow channels can have a channel inlet opening at the bottom and can slope upward following a helical path between the gas collector wall and the outer wall. A gas-liquid-solid mixture inlet opening can be in a floor of the separator body. The mixture opening can be positioned below the gas inlet opening and the mixture inlet opening can have a top-down profile that fits within a top-down profile of the gas inlet opening.

Filter cartridge and filter device

Eine Filterkartusche (5) mit einem Gehäuse, das ein zu ca. 80% von einem Filtergranulat (15) gefülltes Filtervolumen umschliesst, ist mit einem in einer Ausströmöffnung (13) endenden Stutzen (12) in einen Verbindungsstutzen (7) eines Anschlussstücks (1), der mit einer von einem zweiten Anschlussstutzen (3) gebildeten Abflussleitung verbunden ist, eingeschraubt und von einer mit diesem verschraubten Hülse (4) mit Abstand umgeben. Eine von einem ersten Anschlussstutzen (2) gebildete Zuflussleitung mündet in ein zwischen der Hülse (4) und der Aussenseite der Filterkartusche (5) liegendes Zwischenvolumen (6), sodass Rohwasser über dasselbe und durch den von Schlitzen (10) durchbrochenen Boden (9), das Filtergranulat (15), den ebenfalls geschlitzten Zwischenboden (11) und den Stutzen (12) in die Abflussleitung gelangt. Zwecks Verringerung des Strömungswiderstands ist der Stutzen(12) mit Überbrückungsöffnungen (14) versehen, sodass Rohwasser auch direkt aus dem Zwischenvolumen (6) in den Stutzen ...

ФИЛЬТР И УСТРОЙСТВО ФИЛЬТРОВАНИЯ ВОДЫ, СОДЕРЖАЩЕЕ ФИЛЬТР

... 1. Фильтр (1), предназначенный для применения в устройстве (30) фильтрования воды и содержащий корпус (3), имеющий вход (13a-d) для приема воды, которую необходимо профильтровать, и выход (25) для выдачи фильтрованной воды, причем между входом и выходом содержится фильтрующая среда (5), отличающийся тем, что фильтрующая воду среда (5) содержит слой (5b) ионообменной смолы и слой (5с) материала, наполненного активированным углем, причем эти слои выполнены как два отдельных слоя, расположенных в корпусе.2. Фильтр по п.1, отличающийся тем, что слой (5b) ионообменной смолы расположен сверху слоя (5с) материала, наполненного активированным углем.3. Фильтр по п.1, отличающийся тем, что слой (5d) нетканого материала расположен под слоем (5с) материала, наполненного активированным углем.4. Фильтр по п.2, отличающийся тем, что слой (5d) нетканого материала расположен под слоем (5с) материала, наполненного активированным углем.5. Фильтр по любому из пп.1-4, отличающийся тем, что корпус (3) фильтра ...

Modulrohr

Umkehrosmose-Moduleinrichtung, mit wenigsten einem Modulrohr (58), an dem an einem Ende eine Flanschplatte (56) und am anderen Ende ein Flansch (78) angeschweißt ist, und in dem eine Membran mit einem Permeatsammelrohr angeordnet ist,dadurch gekennzeichnet,dass die Flanschplatte (56) mit einem Modulblock (54) verschraubt ist, in den eine Dichtung (72) eingelassen ist, die die Flanschplatte (56) abdichtet, dass die Rohwasserzuführung über einen Eingangströmungsverteiler (49) und kreisförmige angeordneten Bohrungen (51) zur unteren Stirnseite der Membran erfolgt,dass die Membran und ein Ringspalt (87) von unten nach oben durchströmt werden, wobei Permeat in das Permeatsammelrohr eintritt, unddass am oberen Ende des Modulrohres ein Modulkopf (63) befestigt ist, wobei ein Rückschlagventil (64) die Verbindung zwischen dem Permeatsammelrohr (62) und dem Modulkopf (63) herstellt und auf dem ein Permeatsammler und Probeentnameblock (75) angeordnet ist, mit dem die Membran-Qualität überprüfbar ist ...

METHOD AND SYSTEM FOR TREATING HIGH SALINITY WATER

The present application is relate to a method and system for treating high salinity water, comprising the following steps: step 1, by a first membrane concentration unit, concentrating the raw water; step 2, with the assistance of a crystallization initiation unit, mixing the raw water concentrated, initiating crystallization by a seed crystal, and, discharging precipitated crystals; step 3, with the assistance of a crystallization termination unit, firstly, introducing the resulting water of the crystallization initiation unit, then, terminating crystallization, secondly, discharging precipitated miscellaneous salts; step 4, with the assistance of a mechanical filter unit, the liquid discharged from the crystallization termination unit flowing through the mechanical filter unit, removing the residual seed crystal and floccules; step 6, with the assistance of a second membrane concentration unit, the concentrated salinity water entering the second membrane concentration unit for concentration ...

METHOD FOR A WATER TREATMENT IN A SYSTEM COMPRISING AT LEAST ONE SEQUENCING BATCH REACTOR AND A MOVING BED BIOFILM REACTOR

The present invention concerns a method for biological treatment of carbon, nitrogen and optionally phosphorus in water, in a reactor system (1) comprising a sequencing batch reactor (SBR) (2) and a moving bed biofilm reactor (MBBR) (3). The method comprises a step (10) of filling said SBR reactor (2) with water to be treated (5), a step (20) of anoxic/aerobic biological treatment in said reactor system (1) and a step (30) of discharging treated water (35) from said SBR reactor (2). The anoxic/aerobic biological treatment step (20) comprises: a biological treatment (210) under largely anoxic conditions in the SBR reactor (2), producing a first effluent (215), a biological treatment (220) under aerobic conditions in the MBBR reactor (3), producing a second effluent (225), and a continuous recirculation of the first and second effluents. The present invention also concerns a corresponding facility.

DEWATERING METHOD AND SYSTEM

The present invention relates to methods for dewatering tailings and systems for performing same. In certain aspects, the invention relates to methods of producing a dewatered tailings residue or a stackable tailings residue, comprising subjecting tailings to hydrocyclonic separation to produce one or more partially dewatered underflows and a final water-rich overflow; separating the final water-rich overflow, by centrifuging, into a recovered water stream and a low-water residue; and mixing together the low-water residue and at least part of the one or more partially dewatered underflows to produce a dewatered tailings residue or a stackable tailings residue.

APPARATUS AND METHOD FOR SEPARATION OF OIL FROM OIL-CONTAINING PRODUCED WATER

A process for separation of oil from oil-containing produced water as well as an apparatus for separation of oil from oil-containing produced water. A perforated baffle plate is arranged in a separator tank to provide for equalizing of the downwardly flow rate of produced water. The insertion of such baffle plates has shown that less oil is following the stream downward.

APPARATUS AND METHOD FOR BIOLOGICAL SEWAGE TREATMENT

An apparatus comprises a concentrated mixed liquor driving device which uses a gas for driving the concentrated liquor to flow The gas can be an oxygen-containing gas, especially an oxygen-containing aeration gas after aeration treatment. Also provided is a method for biological sewage treatment, which comprises a step of using the gas for driving the concentrated mixed liquor to flow.

APPARATUS AND METHOD FOR BIOLOGICAL SEWAGE TREATMENT

An apparatus comprises a concentrated mixed liquor driving device which uses a gas for driving the concentrated liquor to flow The gas can be an oxygen-containing gas, especially an oxygen-containing aeration gas after aeration treatment. Also provided is a method for biological sewage treatment, which comprises a step of using the gas for driving the concentrated mixed liquor to flow.

método e sistema de remoção de água

DESALINATION SYSTEM

DESALINATION SYSTEM A desalination system includes: a pressurized vessel which generates concentrate water and permeate water by causing treatment 5 target water to pass through a reverse osmosis membrane element built in the pressurized vessel; an energy recovery device which is located on a discharge channel so as to discharge the permeate water, and recovers energy of the permeate water; a bypass discharge channel which branches off from the discharge channel and is located between 10 the pressurized vessel and the energy recovery device, and which discharges the permeate water; and a bypass control mechanism which is located on the bypass discharge channel and controls a discharge volume of the permeate water. 15 [Figure 1] ...

POINT OF ENTRY WATER PURIFICATION SYSTEMS AND METHODS

Apparatus and systems for point of entry water purification using reverse osmosis are provided. Generally, systems include a storage tank for containing purified water, wherein elements of the purification system are attached directly to the storage tank, at its exterior or interior. At the storage tank exterior surface, a mounting plate is attached that contains a sediment filter and a reverse osmosis element. The storage tank interior space contains a mechanical float valve system that uses the amount of purified water within the storage tank to provide a negative feedback system to proportionally control flow of water into the purification system.

Method for filtering liquid mixture

A membrane filter apparatus for splitting a feed into filtrate and retentate is provided. The apparatus comprises a body chamber, a feed inlet disposed on the body chamber, a retentate outlet located in the body chamber, a feed distribution tube connected to the feed inlet, and a filter assembly having a filter. The feed distribution tube has a length sufficient to cause the feed to enter the body chamber at a feed distance from the filter assembly of no greater than 50% of a total length of the body chamber. The feed flows across the filter in a direction parallel to a surface of the filter assembly. The filtrate passes through the filter assembly and the retentate flows through the body chamber in a direction antiparallel to the feed flow through the feed distribution tube and out through the retentate outlet.

WATER TREATMENT CARTRIDGE

Wasserbehandlungseinrichtung für eine Heizanlage

Die Erfindung betrifft eine Wasserbehandlungseinrichtung für eine Heizanlage mit einer Entmineralisierungs- und Enthärtungseinheit (10), die einen wasserdurchströmten Behälter (12) (Strömungsrichtung Pfeil S) aufweist, in welchem Ionentauscherelemente gehalten sind, die das durch den Behälter (12) geleitete Wasser zumindest teilweise entmineralisieren und den pH-Wert des Wassers auf einen Wert im Bereich zwischen 8 und 11 überführen. Die Wasserbehandlungseinrichtung weist weiterhin eine mit der Entmineralisierungs- und Enthärtungseinheit (10) lösbar verbindbare pH-Wert-Stabilisierungseinheit (110) auf, die einen wasserdurchströmten Behälter (112) aufweist, in welchem ein pH-Stabilisator als Puffersystem zur Stabilisierung des von den Ionentauscherelementen geschaffenen pH-Wertes eingesetzt ist.

Hydrothermal carbonization reactor with optimised sludge and steam mixing

The present invention relates to a reactor for processing, in particular by hydrothermal carbonization, sludge filled with organic matter, comprising: - an enclosure (100) having an inner chamber arranged to receive the sludge and to form a sludge circulation path allowing the sludge to circulate, - a sludge inlet (1) for admitting the sludge into a sludge admission area of the inner chamber, - a sludge outlet (11) for discharging at least a portion of the sludge contained in the inner chamber, and - a steam inlet (3) for injecting steam into a steam injection area of the inner chamber in a steam injection direction, the steam injection direction being different from a sludge circulation direction in the steam injection area along the circulation path and the steam injection area being separate from the sludge admission area.

Environmentally friendly water intake and pretreatment system

A water intake and pretreatment system (10) comprising an inlet for delivering water from a natural source to a reservoir (12); said inlet to reservoir having a net screen (16) to prevent entry of organisms above a predetermined size and including a one- way gate (30) to allow organisms to exit the reservoir; said reservoir further comprising a granular filter media for water and algae filtration; and a drainage layer for removal of filtered water from the granular filter media to a drainage outlet. A local backwashing apparatus (40) is included for localized backwashing of the granular filter media.

Cartridge for water purifier, and water purifier

Provided is a cartridge 4 for a water purifier, the cartridge 4 being configured so as to prevent the breakage of activated carbon 8 caused by water hammer or high water pressure occurring when raw water discharge is switched to purified water discharge. This cartridge 4 for a water purifier is accommodated in a replaceable manner within the accommodation section 5 of the water purifier 1. The cartridge 4 has activated carbon 8 for removing impurities from water. The water purifier 1 has formed therein: a raw water flow passage through which raw water flows downstream without passing through the activated carbon 8; and a purified water flow passage through which raw water flows downstream, passing through the activated carbon 8. The water purifier 1 has a damping section 10d located downstream of the activated carbon 8 and upstream of flow passage switching valves 15, 16 for switching between discharge from the raw water flow passage and discharge from the purified water flow passage, the ...

Devices and methods for the remediation of groundwater

Provided herein are devices, systems, and methods for removing contaminant ions from water within an aquifer. The devices, systems, methods employ an elecrokinetic driving force to induce the migration of charged species towards electrodes, where they can be concentrated and removed from the aquifer. In this way, the devices, systems, methods described herein can be used to economically remediate groundwater contaminated with charged species.

WASTEWATER OVERFLOW SYSTEMS AND METHODS

Systems and methods for treating a wastewater are provided. The wastewater treatment system and methods allows for effective treatment of wastewater during conditions that may cause increased wastewater flow to the system.

Effective bioreactor with lightweight filter material

Sewage treatment agent for efficient biological desulfurization

WATER TREATMENT PLANT BY REVERSE OSMOSIS COMPRISING A FIRST PASS HAVING A PLURALITY OF STAGE

CAN BOTTOM STEERING ASSEMBLY OR MARINE

PROCEEDED OF TREATMENT Of WATER TO TREAT BY CLARIFICATION INCLUDING/UNDERSTANDING an ADSORPTION Of a WATER CLARIFIEE PORTION AND a CLARIFICATION Of a MIXTURE Of WATER CLARIFIEE ADSORBEE AND WATER TO BE TREATED

L'invention concerne un procédé de traitement d'une eau à traiter comprenant : - une étape de clarification de ladite eau à traiter produisant une eau clarifiée, - une étape de mise en contact d'une partie de ladite eau clarifiée avec un réactif adsorbant pulvérulent produisant un mélange eau clarifiée-réactif adsorbant pulvérulent ; - une étape de mélange dudit mélange avec ladite eau à traiter ; - une étape d'évacuation du reste d'eau clarifiée.

Water purification device comprising a gravity- fed filter

The present invention relates to water purification devices, particularly to gravity- fed water purification devices that operate without electricity and pressurised water. The invention relates to a gravity- fed water purification device comprising a chamber (3) that has the sediment filter (6), also has a compartment (7) that surrounds the sediment filter (6). The compartment (7) has sidewalls (16) rising upwardly from bottom of the chamber (3) to define an open top with a rim having a notch (7a). The compartment (7) is spaced apart from the walls of the chamber (3) to define a space around the compartment (7). Preferred devices were surprisingly found to solve the problem of tapering -off of the flow- rate from the device over a period of use, and the need to frequently back wash the carbon block filter (9), particularly under conditions of poor water quality and at the same time provide the required residence time for the chemical purifying agent to act on the pathogens.

PROCESS AND FACILITY FOR THE TREATMENT OF LIVESTOCK WASTE

The invention provides an efficient system for treating livestock waste, particularly waste from cattle or pig farming. The new facility and method employ special transfers of slurry streams through ASBR, SBR, and a unique pretreatment reactor, resulting in treated water, quality compost, and biogas.

REACTOR FOR HYDROTHERMAL CARBONIZATION HAS OPTIMIZED MIXING MUD AND STEAM

LIQUID FILTER DEVICE

APPARATUS AND METHOD FOR BIOLOGICAL SEWAGE TREATMENT

Neue Konzepte für die Wasserbehandlung, insbesondere Wasseraufbereitung und/oder -aufreinigung

Aufreinigungs-Anlage (A), vorzugsweise zur Behandlung und/oder Aufreinigung von Wasser (AW), insbesondere von Abwasser oder Trinkwasser, bevorzugt zur adsorptiven Entfernung von anorganisch oder organisch, insbesondere organisch basierten Verunreinigungen, wie Spurenstoffen und/oder Mikroschadstoffen, wobei die Anlage (A) mindestens eine Gegenstrom-Filtervorrichtung (1), insbesondere Gegenstrom-Adsorptionsfilterkolonne, zur Behandlung und/oder Aufreinigung von Wasser (AW) und zur insbesondere kontinuierlichen Aufnahme, Speicherung und Abgabe mindestens eines vorzugsweise partikulären Adsorptionsmaterials, und mindestens eine Regenerations-Vorrichtung (RV) zur insbesondere kontinuierlichen Entnahme von mit den Verunreinigungen beladenem Adsorptionsmaterial aus der Gegenstrom-Filtervorrichtung (1), Regenerierung und/oder Rezyklierung von mit den Verunreinigungen beladenem Adsorptionsmaterial und Wiederzufuhr von regeneriertem und/oder unbeladenem und/oder frischem Adsorptionsmaterial in die ...

A water treatment facility

A water treatment facility for treating raw water and delivering the treated water to a plumbing network. The flow rate is measured by a flow meter. The raw water is passed through a pre-filter and is then temporarily stored in a first tank. The water level in the first tank is kept within a desired maximum and minimum level. The water from the first tank is delivered to a plurality of filter modules. The plurality of filter modules are arranged so that the flow can be configured to flow through all the filter modules simultaneously, or any one or more filter modules exclusively. The flow path through the filter module(s) can be arranged to flow either sequentially or in parallel. A disinfectant system is included that is capable of producing and delivering a disinfectant agent into the outflow on an as needed basis.

A water treatment facility

A water treatment facility for treating raw water and delivering the treated water to a plumbing network. The flow rate is measured by a flow meter. The raw water is passed through a pre-filter and is then temporarily stored in a first tank. The water level in the first tank is kept within a desired maximum and minimum level. The water from the first tank is delivered to a plurality of filter modules. The plurality of filter modules are arranged so that the flow can be configured to flow through all the filter modules simultaneously, or any one or more filter modules exclusively. The flow path through the filter module(s) can be arranged to flow either sequentially or in parallel. A disinfectant system is included that is capable of producing and delivering a disinfectant agent into the outflow on an as needed basis.

Environmentally friendly water intake and pretreatment system

A water intake and pretreatment system (10) comprising an inlet for delivering water from a natural source to a reservoir (12); said inlet to reservoir having a net screen (16) to prevent entry of organisms above a predetermined size and including a one- way gate (30) to allow organisms to exit the reservoir; said reservoir further comprising a granular filter media for water and algae filtration; and a drainage layer for removal of filtered water from the granular filter media to a drainage outlet. A local backwashing apparatus (40) is included for localized backwashing of the granular filter media.

METHOD FOR BIOLOGICAL TREATMENT OF NITROGEN OF EFFLUENTS BY NITRITATION

L'invention a pour objet un procédé de traitement biologique de l'azote sous forme d'ammonium dans les eaux résiduaires par nitritation dans un réacteur biologique, comprenant: au moins une étape a d'aération du réacteur biologique contenant l'eau résiduaire à traiter, au moins une étape b d'élimination d'au moins une partie des nitrites produits à l'étape a, et une étape c d'extraction d'une fraction des boues du réacteur résultant des étapes a et b. L'invention concerne également un procédé de traitement biologique de l'azote dans les eaux résiduaires par nitritation-dénitritation et/ou dé-ammonification, dans lequel la nitritation est mise en uvre par le procédé de nitritation selon l'invention.

SYSTEM AND METHOD FOR OPTIMIZATION OF AN ION EXCHANGE SYSTEM

Systems and methods are disclosed for utilizing lead-tag configuration with ion exchange systems to increase process efficiency, increase media utilization, and reduce system downtime.

REVERSE OSMOSIS WATER TREATMENT PLANT INCLUDING A FIRST PASS HAVING MULTIPLE STAGES

The invention relates to a reverse osmosis water treatment plant including a first pass (83) having at least two stages (831, 832), each stage (831, 832) comprising at least one pressure tube (20, 30) including a plurality of reverse osmosis membrane filtration modules (25, 36) mounted in cascade. The permeability of the membranes of at least certain filtration modules (25, 36) of an upstream stage (831) is lower than that of the membranes of the modules (25, 36) of the downstream stage (832), while the permeability of the membranes of filtration modules (25, 36) of the upstream stage is never higher than that of the downstream stage. Each of the above-mentioned tubes (20, 30) comprises a supply of water to be treated (32) or a discharge of concentrate (22) in the middle thereof.

Purification plant useful for treatment and/or purification of water, comprises counter-flow filter device, and regeneration device, or counter-flow filter device, optionally drying and/or dehumidifying device, and humidifying device

Purification plant (A) for treatment and/or purification of water, preferably wastewater or drinking water, preferably for removal of inorganic or organic, preferably organic based impurities, comprises (i) at least one counter-flow filter device (1), preferably counter-flow adsorption filter column, and (ii) at least one regeneration device (RV), or (ia), at least one counter-flow filter device, (iia) optionally at least one drying- and/or dehumidifying device (T1, T2, T3), (iiia) at least one regeneration and/or desorption device, and (iva) optionally at least one humidifying device. Purification plant (A) for treatment and/or purification of water, preferably wastewater or drinking water , preferably for adsorptive removal of inorganic or organic, preferably organic based impurities, e.g. trace elements and/or micro-pollutants, comprises (i) at least one counter-flow filter device (1), preferably counter-flow adsorption filter column for treatment and/or purification of water and for ...

Device for sewage treatment

An apparatus for degrading the organic fraction of sewage by means of active biomass, in particular active sludge particles, comprising: - at least one tank (1) adapted to contain the sewage and said active biomass; - at least one hollow structure (6, 106, 206), adapted to be at least partially immersed in the sewage, provided with at least one first opening (61) for letting in the sewage and with at least one second opening (62) for letting out the sewage, wherein the ratio between the area of the at least one first opening (61) and the area of the at least one second opening (62) is equal to at least 5:1; - air delivery means (7, 70) adapted to introduce air inside said at least one structure (6, 106, 206); wherein said at least one first opening (61) is proximal to said air delivery means (7, 70) and said at least one second opening (62) is distal from said air delivery means (7, 70), so that the air delivery means (7, 70) are adapted to generate a flow of sewage from said at least one ...

Method for a water treatment in a system comprising at least one sequencing batch reactor and a moving bed biofilm reactor

The present invention concerns a method for biological treatment of carbon, nitrogen and optionally phosphorus in water, in a reactor system (1) comprising a sequencing batch reactor (SBR) (2) and a moving bed biofilm reactor (MBBR) (3). The method comprises a step (10) of filling said SBR reactor (2) with water to be treated (5), a step (20) of anoxic/aerobic biological treatment in said reactor system (1) and a step (30) of discharging treated water (35) from said SBR reactor (2). The anoxic/aerobic biological treatment step (20) comprises: a biological treatment (210) under largely anoxic conditions in the SBR reactor (2), producing a first effluent (215), a biological treatment (220) under aerobic conditions in the MBBR reactor (3), producing a second effluent (225), and a continuous recirculation of the first and second effluents. The present invention also concerns a corresponding facility.

A WATER TREATMENT FACILITY

A water treatment facility for treating raw water and delivering the treated water to a plumbing network. The flow rate is measured by a flow meter. The raw water is passed through a pre-filter and is then temporarily stored in a first tank. The water level in the first tank is kept within a desired maximum and minimum level. The water from the first tank is delivered to a plurality of filter modules. The plurality of filter modules are arranged so that the flow can be configured to flow through all the filter modules simultaneously, or any one or more filter modules exclusively. The flow path through the filter module(s) can be arranged to flow either sequentially or in parallel. A disinfectant system is included that is capable of producing and delivering a disinfectant agent into the outflow on an as needed basis.

360 degree dead angle-free water distribution device

Photooxygen catalytic mixed waste gas and wastewater treatment system

Wastewater treatment device and application thereof in ammonia nitrogen treatment wastewater treatment

Liquid filter device

Provided is a filter device for filtering liquid by passing it through one or more filtering media. The filter device comprises a cartridge defining a treatment region filled with said one or more filtering media and has a liquid inlet and a liquid outlet. A locking mechanism may be located within a liquid flow through the cartridge and configured to lock at least one of the liquid inlet and the liquid outlet upon expiration of life time of said at least one filtering medium.

Device for adding gas to fluids

An apparatus for introducing a gas into a liquid in a flow tube includes at least one feed line for the liquid to be gassified and the gas to be introduced, at least one outflow line for a gas/liquid mixture, at least one return line for the gas/liquid mixture, and at least one chamber comprising at least one gas supply device arranged in the at least one return line. The apparatus does not include an injector operating on a Venturi principle.

Water producing system

A water producing system is provided that produces fresh water by treating treatment target water A at a first semipermeable membrane treatment plant, that mixes concentrate resulted by the treatment carried out at the first semipermeable membrane treatment plant with treatment target water B, and that treats the mixed water at a second semipermeable membrane treatment plant to produce fresh water. A bypass line allows the treatment target water A to be mixed with the treatment target water B or the concentrate while bypassing the first semipermeable membrane treatment plant, so that the second semipermeable membrane treatment plant can operate even when any trouble occurs at the first semipermeable membrane treatment plant and treatment cannot be carried out thereby.

Water Filtration System

A water filtration system is provided that includes a filter section, a tank section, a pump section, a housing section and a dispensing section. The filter section includes a high-pressure water filter disconnected from a source of tap water. The tank section includes an outer tank member and an inner tank member fluidly connected to the filter section. The pump section is fluidly connected to the filter section via a first conduit for pumping water at a high pressure through the filter and is fluidly connected to the outer tank member via a second conduit for drawing unfiltered water from the outer tank member. The housing section houses at least one of the filter section, the tank section and the pump section. The dispensing section is fluidly connected to the inner tank member for dispensing filtered water.

Oxidation process

Treatment of an aqueous solution to yield a product is more desirable for disposal by an advanced oxidation process. Ozone is mixed with the solution, and maintaining at an elevated pressure for a time. The process may include recirculation past injector that injects ozone into the solution. Influent may be sewage, septage, leachate, ballast, and so on. The process disinfects and/or denutrifies the effluent. It may include (a) back-to-back processing of batches (b) overlapping processing with a previously treated batch (c) off-gassing (d) repetitive high pressure and low pressure cycles (e) post processing steps, such as retention without addition of ozone for a period of time to permit flocculates longer to form (f) post process filtering to remove flocculates (g) simultaneous post-processing of one batch while another batch is being processed. The process may include the treatment of solutions containing pharmaceuticals.

Fresh Water Generating Apparatus and Fresh Water Generating Method

An object of the present invention is to provide a fresh water generating apparatus that is capable of efficiently producing fresh water according to an intended use, while utilizing wastewater. Provided is a fresh water generating apparatus equipped with a seawater-treating reverse osmosis membrane device that produces fresh water from seawater by a reverse osmosis membrane, which includes: a mixing section that mixes wastewater as dilution water with a portion of seawater to be subjected to membrane treatment to produce mixed water; a first seawater-treating reverse osmosis membrane device that acts as the seawater-treating reverse osmosis membrane device to filter the mixed water; and a second seawater-treating reverse osmosis membrane device that acts as the seawater-treating reverse osmosis membrane device to filter the remaining portion of the seawater to be subjected to membrane treatment, in an unmixed state with the dilution water.

Water treatment method and apparatus

A water treatment system includes a weak acid cation resin where a portion of the feed water is exposed to the resin and then blended with untreated feed water to produce a stream of water with reduced mineral scaling and potential. Feed water is split into a first fluid stream, fed to a bypass conduit and a second fluid stream that is conveyed through a weak acid cation treatment bed. After passing through the bed, the treated fluid is combined with the bypass fluid stream to produce a blended feed water at the outlet. The ratio of the bypass fluid stream and treated fluid stream is a function of pH and L.S.I. A controller and associated sensors may control the relative flow rates between the bypass fluid stream and the treated stream to maintain a predetermined water parameter such pH, L.S.I., etc. within a predetermined range.

Control Valve Assembly

Embodiments of the invention provide a control valve assembly and method of fault detection that includes adjusting a valve between an operating position and a fault position in response to various fault conditions. The control valve assembly is adjustable to accommodate fault conditions encountered in a variety of electrochemical deionization systems.

Method And Arrangement For A Water Treatment

In a method for water treatment by chlorine disinfection, a chlorine stabilizer is dosed into water to be treated as far as a predetermined chlorine stabilizer concentration in said water is achieved. As soon as the predetermined chlorine stabilizer concentration is achieved said achieved chlorine stabilizer concentration is maintained in said water constant. A chlorine disinfectant concentration is adjusted in said water to be treated to a predetermined chlorine disinfectant concentration in said water by dosing a non-stabilized chlorine disinfectant (free chlorine) into said water to be treated. Therefore advantages of free chlorine and stabilized chlorine disinfection and facilitating to reduce DBPs at low chlorine stabilizer concentrations in water can be combined, without compromising disinfection safety.

Methods and systems for disinfecting potable water supplies

The invention described herein contains two aspects, usable together or separately, that address the needs in the art described above, namely a first aspect that relates to the provision of a transportable water purification system that can be contained on a passenger transport vehicle, and that can use, but does not require, continuous, real-time monitoring, and a second aspect that relates to the use of UV purification of the water as it is uploaded to the passenger transport vehicle after a single pass through the UV chamber.

Wastewater treatment process with anaerobic mbbr

In a wastewater treatment system, feed water is processed by anaerobic digestion, preferably in an anaerobic moving bed bioreactor (AnMBBR). Effluent from the AnMBBR passes through one or more solid-liquid separation units. A solids portions is treated by hydrolysis or suspended growth anaerobic digestion. A liquid portion of the hydrolysis or suspended growth anaerobic digestion effluent is returned to the AnMBBR or blended with effluent from the AnMBBR. The AnMBBR effluent may be treated with an aerobic moving bed bioreactor (MBBR) before the one or more solid-liquid separation steps. Membrane filtration may provide a first solid-liquid separation step. A thickened waste stream may be withdrawn from a recirculation loop flowing from the first solid-liquid separation unit to the MBBR. Optionally, a solids portion separated from the feed water upstream of the AnMBBR may also be treated by hydrolysis or suspended growth anaerobic digestion.

System and method for conditioning a liquid such as water

A system for conditioning a liquid such as water, includes a first holder of a medium for treating liquid, the medium in the first holder including an ion exchange material loaded with at least a first counter ion species, and a second holder of a medium for treating liquid, the medium in the second holder including an ion exchange material loaded with at least a second counter ion species of the same polarity as the first. The media in the first and second holders are configured to exchange at least one of the first and second counter ion species for ions in the liquid to a different extent. The system is arranged to lead a first fraction of the liquid to be treated through only the first of the first and second holders and a second fraction of the liquid to be treated through at least the second of the first and second holders.

Stacked type falling film evaporator, zero liquid discharge system comprising the same, and zero liquid discharging method using the same

A stacked type falling film evaporator includes a first evaporator, a second evaporator, a first vapor recovering device, a second vapor recovering device and a vapor recompressor. The first evaporator and the second evaporator respectively have evaporation tubes of a length of 5 m to 10 m, and are stacked in such a manner that wastewater passes through the first evaporator and the second evaporator in order. The first vapor recovering device collects vapor generated from the wastewater in the first evaporator and supplies the collected vapor to the second evaporator. The second vapor recovering device collects vapor generated from the wastewater in the second evaporator and supplies the collected vapor to the first evaporator. The vapor recompressor compresses the vapor collected in the second vapor recovering device before the vapor is supplied to the first evaporator.

FLUID STERILIZATION APPARATUS

A fluid sterilization apparatus includes: a flow passage tube in which a processing passage where a passing fluid is sterilized is formed; a first light source that irradiates the processing passage with ultraviolet light; an inflow passage formed in a direction that intersects an outer circumferential surface of the flow passage tube; and a communication passage that causes the inflow passage to communicate with the processing passage. The communication passage has a narrow passage in the middle of a path from the inflow passage toward an opening of a first end, the narrow passage being narrower than a passage toward the inflow passage. 1. A fluid sterilization apparatus comprising:a flow passage tube in which a processing passage where a passing fluid is sterilized is formed;a light source that irradiates the processing passage with ultraviolet light;an inflow passage or an outflow passage formed in a direction that intersects an outer circumferential surface of the flow passage tube; anda communication passage that causes the inflow passage or the outflow passage to communicate with the processing passage, whereinthe communication passage has a narrow passage in the middle of a path from the inflow passage or the outflow passage toward an opening of one end of the flow passage tube, the narrow passage being narrower than a passage toward the inflow passage or the outflow passage.2. The fluid sterilization apparatus according to claim 1 , whereinthe communication passage is formed between the flow passage tube and a housing that covers an opening of the one end of the flow passage tube and the outer circumferential surface near the opening.3. The fluid sterilization apparatus according to claim 2 , whereina convex part is formed more toward the opening than a portion of the outer circumferential surface of the flow passage tube facing the inflow passage or the outflow passage, and the narrow passage is formed between the convex part and an inner circumferential ...

PROCESS FOR MANUFACTURING A SOLUTION OF AN EARTH ALKALI HYDROGEN CARBONATE

The present invention relates to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate, a process for the mineralization of water as well as the use of an aqueous solution comprising at least one earth alkali hydrogen carbonate obtained by the process for the mineralization of water. 1. A process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate , comprising the steps of:{'b': 1', '2, 'a) providing water in a main process flow () and in at least one side process flow ();'}{'b': 4', '2, 'b) adding at least one earth alkali carbonate-comprising material to the water provided in a first portion () of the side process flow () to obtain a suspension comprising the at least one earth alkali carbonate-comprising material;'}{'sub': 'a', 'b': 5', '2, 'c) adding carbon dioxide or an acid having a pK-value <5 to the water provided in a second portion () of the side process flow () and adjusting the pH-value to a range from 2.5 to 7.5 to obtain acidified water;'}d) combining the suspension obtained in step b) with the acidified water obtained in step c) to obtain a solution or suspension of at least one earth alkali hydrogen carbonate;{'b': '1', 'e) dosing the solution of at least one earth alkali hydrogen carbonate obtained in step d) into the water provided in the main process flow () to obtain an aqueous solution of at least one earth alkali hydrogen carbonate; and'}{'b': '1', 'f) adding an earth alkali hydroxide provided in water to the aqueous solution of at least one earth alkali hydrogen carbonate obtained in the main process flow () of step e) to adjust the pH-value of the aqueous solution of at least one earth alkali hydrogen carbonate to a range from 7.0 to 9.0 and to form an aqueous solution of at least one earth alkali hydrogen carbonate having an earth alkali concentration as earth alkali hydrogen carbonate in the range from 10 to 300 mg/l;'}wherein the molar ...

PRODUCTION OF ULTRA-HIGH-DENSITY BRINES USING TRANSIENTLY-OPERATED DESALINATION SYSTEMS

Systems and methods related to desalination systems are described herein. According to some embodiments, the desalination systems are transiently operated and/or configured to facilitate transient operation. In some embodiments, a liquid stream comprising water and at least one dissolved salt is circulated through a fluidic circuit comprising a desalination system. In some embodiments, a portion of the desalination system (e.g., a humidifier) is configured to remove at least a portion of the water from the liquid stream to produce a concentrated brine stream enriched in the dissolved salt. In certain cases, the concentrated brine stream is recirculated through the fluidic circuit until the concentrated brine stream reaches a relatively high density (e.g., at least about 10 pounds per gallon) and/or a relatively high salinity (e.g., a total dissolved salt concentration of at least about 25 wt %). In certain embodiments, additional salt is added to the concentrated brine stream to produce an ultra-high-density brine stream (e.g., a brine stream having a density of at least about 11.7 pounds per gallon). Some aspects relate to a system that is configured to promote energy efficiency by recovering heat from the recirculated concentrated brine stream upon discharge from the fluidic circuit. 130-. (canceled)31. A method for producing a concentrated brine stream , comprising:supplying a liquid stream comprising water and a dissolved salt at an initial concentration to a fluidic circuit comprising a humidifier, wherein the humidifier removes at least a portion of the water from the liquid stream to produce a concentrated brine stream comprising water and the dissolved salt at a second concentration higher than the initial concentration of the liquid stream; andrecirculating the concentrated brine stream through the fluidic circuit to remove at least a portion of the water from the concentrated brine stream, forming a recirculated concentrated brine stream comprising water ...

Liquid Purification System

A liquid purification system includes a system raw liquid feed unit and a filtration unit, which includes a liquid concentration device having an internal partition dividing a variable volume collection cavity for raw liquid coming from an initial stage of liquid filtration and for mixing therein concentrate and a raw liquid displacement cavity. The cavity is connected to a secondary line that supplies raw liquid to the cavity to displace concentrate from the collection cavity and to recycle raw liquid from the displacement cavity through the secondary line under pressure exerted by concentrate and raw liquid in the collection cavity. A filtration unit provides long-term contact between raw liquid and concentrate in the variable-volume collection cavity to provide smooth increase in the concentration of liquid supplied to a liquid purification device. 1. A liquid purification system comprising: a container,', 'a primary raw liquid supply line, and', 'a secondary raw liquid supply line having an inlet connected via a connection element to the primary raw liquid supply line before a pressurizing means mounted in the primary raw liquid supply line,', 'wherein an outlet of the secondary raw liquid supply line is connected to the container;, 'a system raw liquid feed unit comprising a mixing line configured to mix concentrate formed by a liquid filtration cycle with raw liquid, the mixing line connected via a connection element to the primary raw liquid supply line after the pressurizing means,', 'at least one liquid purification means connected with liquid velocity increasing means,', 'a recycling line configured to recycle at least a portion of the concentrate to the container, the recycling line connected to a concentrate exit of the at least one liquid purification means,', 'a drain discharge line with a drain discharge valve mounted thereon,', 'a purified liquid supply line connected to a purified liquid exit of the at least one liquid purification means,, 'a ...

WASTE WATER TREATMENT SYSTEM USING AEROBIC GRANULAR SLUDGE GRAVITY-DRIVEN MEMBRANE SYSTEM

Described herein is aerobic granular sludge gravity-driven membrane system, methods of making and using thereof are described. The aerobic granular sludge (AGS) integrated with a gravity-driven membrane (GDM) filtration system is an energy efficient wastewater treatment system that takes advantage of AGS reactor systems integrated with gravity-driven membrane system to reduce membrane fouling and produce microbiologically and chemically safe water. The AGS-GDM system includes at least an AGS reactor tank containing raw wastewater and granular sludge and a membrane tank including one or more gravity-driven membrane(s). 1. A wastewater treatment system comprising an aerobic granular sludge (AGS) tank coupled to a gravity-driven membrane (GDM) tank comprising one or more membrane(s).2. The system of claim 1 , further comprising: (a) an influent tank claim 1 , sludge tank claim 1 , a treated water tank claim 1 , and/or a control unit; (b) a first pipe at the top of the AGS tank connected to the GDM tank; (c) a first air blower connected to the bottom of the GDM tank; or (d) an influent pump operatively connected to the AGS tank.3. The system of claim 1 , wherein: (a) the one or more gravity-driven membrane(s) forms a membrane unit; (b) the membrane unit includes single or multiple modules; (c) the modules include flat sheet or hollow fiber modules; (d) the one or more gravity-driven membrane(s) are porous membrane(s) made of inorganic or organic porous materials; and/or (e) the GDM tank has a height in the range between 1 to 2 meters claim 1 , between 1 to 3 meters claim 1 , between 1 to 4 meters claim 1 , between 1 to 5 meters claim 1 , between 1 to 6 meters claim 1 , between 1 to 7 meters claim 1 , between 1 to 8 meters claim 1 , between 1 to 9 meters claim 1 , or between 1 to 10 meters.4. (canceled)5. (canceled)6. (canceled)763. The system of claim claim 1 , wherein: (a) the inorganic or organic porous materials are ceramic or polymer based materials; (b) the porous ...

High Solids Dissolved Air Flotation System and Methods

A wastewater treatment system including an aeration unit, a contact tank, a dissolved air flotation unit, and a biological treatment unit is disclosed. A method of retrofitting a wastewater treatment system by providing an aeration unit and fluidly connecting the aeration unit to the wastewater treatment system is also disclosed. A method of treating wastewater including aerating wastewater with oxygen, combining the aerated wastewater with activated sludge, floating biosolids from the activated wastewater, and biologically treating the effluent is also disclosed. The method optionally includes combining the floated biosolids with the aerated wastewater and/or activated wastewater. A method of facilitating treatment of high solids content wastewater is also disclosed.

DECENTRALIZED WASTEWATER TREATMENT SYSTEM FOR REMOVING PHOSPHOROUS

An on-site decentralized wastewater treatment system for treating phosphorous-containing wastewater including a sedimentation chamber and an anaerobic treatment system and/or an aerobic treatment system, along with a recirculation system which recirculates treated wastewater within the treatment system. The system further includes a system for introduction of a chemical agent into the recirculation system for complexing the phosphorous-containing compounds present in the wastewater. 1. An on-site , decentralized wastewater treatment system for treating phosphorous-containing wastewater comprisingan inlet for receiving the wastewater,a sedimentation chamber for receiving wastewater from the inlet,an anaerobic treatment system and/or an aerobic treatment system for receiving and treating wastewater,a recirculation system which recirculates treated wastewater back to the sedimentation chamber,a system for introduction of chemical agents into the recirculation system for treating phosphorous-containing compounds present in the wastewater, andan outlet to discharge treated wastewater from the wastewater treatment system.2. The wastewater treatment system of wherein the system for introduction of chemical agents into the recirculation system is selected from the group consisting of a venturi apparatus claim 1 , a liquid pump claim 1 , syphon or gravity dripped structure claim 1 , and a structure for holding solid tablets or other solids containing metals or metal salts.3. The recirculation system of wherein the chemical agents used for complexing of the phosphorous-containing compound is selected from the group consisting of ammonium compounds claim 1 , ferric compounds claim 1 , aluminum compounds and calcium compounds.4. The wastewater treatment system of wherein the chemical agents are contained in dissolvable tablets containing a compound comprising a metal or metal salt with the metal selected from the group consisting of aluminum claim 1 , iron and calcium.5. The ...

SYSTEMS AND METHODS FOR PROVIDING A FEEDWELL

Feedwell devices are described herein. While the described feedwells can include any suitable component, in some cases, the feedwell has a center portion, a launder, a weir, and/or a mixing zone. While the various components can have any suitable relationship with respect to each other, in some cases, the weir surrounds a portion of the feedwell's center portion and is configured to allow supernatant from a thickener (e.g., a thickener in which the feedwell device has been placed) to flow into the launder. In turn, in some implementations, the launder is configured to direct the supernatant to the mixing zone. Additionally, in some implementations, the mixing zone is configured to mix the supernatant with a feed slurry, prior to introducing a mixture of the supernatant and the feed slurry into the center portion of the feedwell. Other implementations are described. 1. A feedwell device , comprising:a feedwell comprising a center portion;a launder disposed around a portion of the feedwell;a weir disposed around a portion of the launder; anda mixing zone,wherein the weir is configured to allow supernatant from a thickener to flow into the launder,wherein the launder is configured to direct the supernatant to the mixing zone, andwherein the mixing zone is configured to mix the supernatant with a feed slurry prior to introducing a mixture of the supernatant and the feed slurry into the center portion of the feedwell.2. The feedwell of claim 1 , wherein the mixing zone comprises at least one static mixer.3. The feedwell of further comprising a flocculation zone that is configured to add flocculant to the mixture.4. The feedwell of claim 1 , further comprising a baffle that is configured to redirect the mixture passing from the mixing zone towards the center portion of the feedwell.5. The feedwell of claim 1 , wherein the launder comprises a sloped portion that is configured to help direct the supernatant to the mixing zone.6. The feedwell of claim 1 , further comprising ...

Water treatment apparatus

A water treatment apparatus is disclosed. The water treatment apparatus, according to one embodiment of the present invention, may comprise: a filter unit comprising a reverse osmosis filter for supplying purified water filtered from raw water, and residential water which could not be filtered from raw water; a storage unit connected to the filter unit and comprising a storage member in which purified water is stored, then discharged, and a housing within which the storage member is provided, and through which residential water inflows and outflows; and a flow path changing valve connected to the filter unit and the storage unit, and which allows residential water to outflow from the housing as purified water is stored in the storage member, or allows purified water to be discharged from the storage member as residential water inflows into the housing.

WASTEWATER TREATMENT SYSTEM HAVING FLOW PORTS FOR MODULATING FLOW

A system and a method comprise an upstream chamber is configured to receive a variable input flow of a wastewater mixture having a maximum input flow rate. A downstream chamber is adjacent to the upstream chamber. An effluent baffle wall separates the downstream chamber from the upstream chamber. An effluent flow port is located in the effluent baffle wall. The effluent flow port comprises a first orifice configured to produce a first modulated flow of the wastewater mixture from the upstream chamber to the downstream chamber, and a second orifice being positioned above the first orifice. The second orifice is configured to produce a second modulated flow having a second flow rate, wherein a combined flow rate including the first and second flow rates is less than the maximum input flow rate. 1. A system comprising:an upstream chamber being configured to receive a variable input flow of a wastewater mixture having a maximum input flow rate;a downstream chamber adjacent to the upstream chamber;an effluent baffle wall separating the downstream chamber from the upstream chamber; andan effluent flow port located in the effluent baffle wall, wherein the effluent flow port comprises:a first orifice being configured to produce a first modulated flow of the wastewater mixture from the upstream chamber to the downstream chamber; anda second orifice being positioned above the first orifice, wherein the second orifice is configured to produce a second modulated flow having a second flow rate, wherein a combined flow rate including the first and second flow rates is less than the maximum input flow rate.2. The system of claim 1 , wherein the second flow rate is greater than the first flow rate.3. The system of claim 1 , further comprising a guard plate joined to the baffle wall in the upstream chamber claim 1 , wherein the guard plate is configured to block floating solids from entering the effluent flow port.4. The system of claim 1 , wherein the first orifice comprises an ...

BRINE CONCENTRATION

A process for separating solvent from a feed solution, said process comprising: contacting a feed solution comprising solutes dissolved in a solvent with one side of a nanofiltration membrane, applying hydraulic pressure to the feed solution, such that solvent and some of the dissolved salts from the feed solution flow through the nanofiltration membrane to provide a permeate solution on the permeate-side of the nanofiltration membrane and a concentrated solution on the retentate-side of the nanofiltration membrane; contacting the permeate solution from the nanofiltration membrane with one side of a reverse osmosis membrane and applying hydraulic pressure to the permeate solution, such that solvent from the permeate solution flows through the reverse osmosis membrane to leave a concentrated solution on the retentate-side of the reverse osmosis membrane, using the concentrated solution from the retentate-side of the reverse osmosis membrane as at least part of the feed solution tothe nanofiltration membrane;withdrawing at least a portion of the concentrated solution from the retentate-sideof the nanofiltration membrane. 1. A process for separating solvent from a feed solution , said process comprising:contacting a feed solution comprising solutes dissolved in a solvent with one side of a nanofiltration membrane,applying hydraulic pressure to the feed solution, such that solvent and some of the dissolved salts from the feed solution flow through the nanofiltration membrane to provide a permeate solution on the permeate-side of the nanofiltration membrane and a concentrated solution on the retentate-side of the nanofiltration membrane;contacting the permeate solution from the nanofiltration membrane with one side of a reverse osmosis membrane and applying hydraulic pressure to the permeate solution, such that solvent from the permeate solution flows through the reverse osmosis membrane to leave a concentrated solution on the retentate-side of the reverse osmosis ...

Hydraulic-arm aided closed circuit batch-ro desalination apparatus of low energy and high recovery prospects

An inventive apparatus for closed circuit batch-RO desalination comprising a RO-skid with membrane elements and circulation means for the recycling of RO concentrate through membranes and a designed hydraulic-arm with a disc separating between a section of pressurized hydraulic fluid created by a high pressure hydraulic pump under fixed flow and variable pressure conditions and a section of RO recycled concentrates. The batch desalination sequence is completed when the entire hydraulic-arm volume is filled with hydraulic fluid and thereafter, desalination is stopped, said apparatus decompressed, brine removed and hydraulic-arm recharged with fresh feed before the initiation of a new batch sequence. The inventive apparatus enables RO desalination under the lowest energy and highest recovery prospects not possible by any other RO technique.

WATER TREATMENT SYSTEM AND METHOD FOR TREATING WATER LOCATED IN A WATER RESERVOIR

The invention relates to a water treatment system () and a method for treating water () located in a water reservoir (). The water treatment system () comprises a recirculation means () and a membrane filtration means () with a plurality of filter modules () disposed in the recirculation means (). The water treatment system () particularly comprises a gas supply means () by which gas can be introduced into the filter modules () to clean the membranes of the filter modules () of the membrane filtration means () or by which gas supply means () gas can be introduced into the water reservoir () at one or more locations, periodically or when required, to circulate and mix up the water (). 133-. (canceled)34232. Method for treating water () located in a water reservoir () , for example in a swimming pool , pond or aquarium , in particular for cleaning and disinfecting the water () , comprising:{'b': 2', '3', '6', '4, 'removing a pre-settable quantity of water () per unit of time from the water reservoir () via one or more extraction line(s) () of a recirculation means ();'}{'b': 2', '9', '4', '9', '10, 'filtering the removed partial quantity of water () by means of a membrane filtration means () disposed in the recirculation means (), the membrane filtration means () comprising a number of filter modules () fluidically connected in a parallel arrangement;'}{'b': 3', '7', '4, "returning the water to the'water reservoir () via one or more return line(s) () of the recirculation means ();"}{'b': 10', '10', '17, 'cleaning the membranes of the filter modules (), periodically or when required, by backwashing with a backwashing liquid by reversing the direction of flow through the filter modules () compared with that of the filtration operation and discharging the dirty liquid occurring during backwashing via a discharge (),'}{'b': 10', '9', '24', '10', '3', '24', '2', '3', '24', '10', '2', '3, 'wherein in order to clean the membranes of the filter modules () of the membrane ...

FLUID PURIFICATION SYSTEM

Certain disclosed embodiments concern systems and methods of preparing dialysate for use in a home dialysis system that is compact and light-weight relative to existing systems and consumes relatively low amounts of energy. The method includes coupling a household water stream to a dialysis system; filtering the water stream; heating the water stream to at least about 138 degrees Celsius in a non-batch process to produce a heated water stream; maintaining the heated water stream at or above at least about 138 degrees Celsius for at least about two seconds; cooling the heated water stream to produce a cooled water stream; ultrafiltering the cooled water stream; and mixing dialysate components into the cooled water stream in a non-batch process. 1. A fluid purification system comprising:a pump adapted to pump household water through a pump outlet;a microfluidic heat exchanger downstream of the pump and coupled to the fluid flow pathway, the microfluidic heat exchanger comprising an inlet in fluid communication with the pump outlet, an inflow microchannel downstream of the inlet, a heater downstream of the inflow microchannel, an outflow microchannel downstream of the heater and in thermal communication with the inflow microchannel to permit heat transfer between water flowing in the outflow microchannel and water flowing in the inflow microchannel, the microfluidic heat exchanger being configured to heat the water to a pasteurization temperature, maintain the water at the pasteurization temperature for a period of time effective to pasteurize the water, and cool the pasteurized water to a temperature lower than the pasteurization temperature; anda mixer downstream of the microfluidic heat exchanger, the mixer comprising dialysate components for addition to water flowing from the microfluidic heat exchanger.2. The system of wherein the microfluidic heat exchanger further comprises a plurality of inflow microchannels in fluid communication with the inlet and a plurality ...

CIRCULATING WATER PURIFICATION SYSTEM FOR AQUACULTURE BREEDING

A circulating water purification system for aquaculture breeding, including a feeding machine, a growing pond, a water purification and separation system, and a recycling device, where the feeding machine for feeding fry to the growing pond is disposed outside the growing pond, the upper part of the growing pond is provided with a water-level safety line, the bottom of the growing pond is conical, and a mesh for filtering solids from liquids are mounted at the bottom of the growing pond; the bottom of the growing pond is connected to the water purification and separation system through a first discharge pipe; the water purification and separation system are provided with a feed pump, and pumps water to the growing pond through the feed pump; and the water purification and separation system are connected to the recycling device. 1. A circulating water purification system for aquaculture breeding , comprises a feeding machine , a growing pond , a water purification and separation system , and a recycling device , wherein the feeding machine for feeding fry to the growing pond is disposed outside the growing pond , the upper part of the growing pond is provided with a water-level safety line , an anti-blocking aeration device is mounted in the growing pond , the bottom of the growing pond is conical , and a mesh for filtering solids from liquids are mounted at the bottom of the growing pond; the bottom of the growing pond is connected to the water purification and separation system through a sewage pipe; the water purification and separation system are provided with a feed pump; the feed pump is connected to the water purification and separation system through a pipeline to pump water to the growing pond to form circulating water , and the water purification and separation system is connected to the recycling device.2. The circulating water purification system for aquaculture according to claim 1 , characterized in that the water purification and separation system ...

METHOD FOR REDUCING MONOVALENT IONS IN CONCENTRATE OF NANOFILTRATION SYSTEM AND THE NANOFILTRATION SYSTEM

This specification describes a method for lowering the content of monovalent ions in a final concentrate of a nanofiltration system relative to a brine and a corresponding nanofiltration system. The nanofiltration system comprises at least three stages of nanofiltration, wherein the concentrate from each segment flows into the next segment. A feed stream is sent into one stage to generate a concentrate stream, and a first portion of the concentrate stream is recirculated to the one stage. The pH of the feed stream is controlled in a range of 2-7. The temperature of the feed stream is in a range of 20-60° C. The feed stream includes the recirculated concentrate stream and at least part of a concentrate generated from an upstream stage. The method and the system described herein can reduce the concentration of monovalent ions in the final concentrate during a nanofiltration separation process. 1. A method for operating a nanofiltration system , the nanofiltration system comprising at least three stages of nanofiltration with concentrate staging between the stages , the method comprising:introducing a feed liquid to one stage and producing a concentrate;recirculating a first portion of the concentrate to the one stage; andcontrolling the feed liquid in a pH range of 2 to 7 and a temperature range of 20° C. to 60° C.,wherein the feed liquid comprises at least part of a previous concentrate produced by a previous stage and the first portion of the concentrate.2. The method of claim 1 , wherein the one stage is the last stage claim 1 , and the previous stage is the last but one stage.3. The method of claim 1 , wherein the feed stream is controlled in a pH range of 3 to 7 and a temperature range of 20° C. to 50° C.4. The method of claim 1 , wherein the recirculating is carried out with a recirculation rate of 2 or more.5. The method of claim 1 , wherein the recirculation rate is 5 or more.6. The method of claim 1 , wherein the feed liquid further comprises a deionized ...

BYPASS VALVE AND WATER PURIFIER

The present invention discloses a bypass valve and a water purifier comprising the bypass valve. The bypass valve comprises a valve housing and a valve core disposed in an inner space of the valve housing and capable of rotating in the inner space around an axial direction. The valve core comprises a first inlet and a first outlet disposed at intervals in an axial direction, a first annular seal fitted on an outer side surface of the valve core between the first inlet and the first outlet, and a first channel disposed within the valve core and communicating with the first inlet and the first outlet. The valve housing comprises a first opening and a second opening disposed at intervals in an axial direction, the inner space communicating with the first opening and the second opening, and a bypass opening provided on a side wall of the valve housing between the first opening and the second opening and communicating with the inner space and an outer space outside the valve housing. The bypass opening and the first circular seal are configured in such a manner that, when the valve core rotates, the first annular seal is capable of partitioning the bypass opening into two parts, and an axial position of a part of the first annular seal in contact with the bypass opening varies with the rotation of the valve core. 1. A bypass valve , comprising a valve core and a valve housing , whereinthe valve core is provided with a first inlet, a first outlet, a first channel, and a first annular seal, the first inlet and the first outlet are disposed at intervals in an axial direction, the first annular seal is fitted on an outer side surface of the valve core between the first inlet and the first outlet, and the first channel is disposed within the valve core and communicates with the first inlet and the first outlet;the valve housing is provided with a first opening, a second opening, an inner space, and a bypass opening, the first opening and the second opening are disposed at ...

LIQUID TREATMENT APPARATUS AND LIQUID TREATMENT CARTRIDGE

A device for forming a liquid treatment apparatus includes a main part, a receiving part including a cavity for receiving a connecting head of a replaceable liquid treatment cartridge having at least one port in liquid communication with an interior of the liquid treatment cartridge. The receiving part is journalled for movement between a first and a second position with respect to the main part. The head is insertable into and retractable from the cavity in the first position. The liquid treatment cartridge is lockable to the device by at least moving the receiving part with the inserted connecting head into the second position. The movement includes a component corresponding to an intrinsic rotation in a plane parallel to a direction of insertion. The movement further includes at least a component corresponding to a displacement of the receiving part relative to the main part. 1. Liquid treatment apparatus including:a replaceable liquid treatment cartridge including a connecting head having at least one port in liquid communication with an interior of the liquid treatment cartridge; anda device including:a main part; anda receiving part including a cavity for receiving the connecting head of the replaceable liquid treatment cartridge such that the at least one port(s) of the connecting head are in sealed liquid communication to with corresponding ports of the receiving part,wherein the receiving part is journalled for movement between a first and a second position with respect to the main part whilst the connecting head is inserted in the cavity,wherein the connecting head is insertable into and retractable from the cavity in the first position,wherein the liquid treatment cartridge is lockable to the device by at least moving the receiving part with the inserted connecting head into the second position, andwherein the movement includes a component corresponding to an intrinsic rotation in a plane parallel to a direction of insertion, andwherein the movement ...

ION REMOVAL SYSTEM

An ion removal system includes: an ion removal device including a hard water storage configured to store hard water and a fine bubble generator configured to generate a fine bubble to supply the hard water storage with the fine bubble, for removing a metal ion from the hard water by adsorbing the metal ion in the hard water to the fines bubble in the hard water storage and crystallizing and precipitating the adsorbed metal ion; and a particle feeder configured to bring a particle containing a same element as that of the metal ion into the hard water at a feeding point, the feeding point being located upstream of the hard water storage or located in the hard water storage. 1. An ion removal system comprising:an ion removal device including a hard water storage configured to store hard water and a fine bubble generator configured to generate a fine bubble to supply the hard water storage with the fine bubble, for removing a metal ion from the hard water by adsorbing the metal ion in the hard water to the fines bubble in the hard water storage and crystallizing and precipitating the adsorbed metal ion; anda particle feeder configured to bring a particle containing a same element as that of the metal ion into the hard water at a feeding point, the feeding point being located upstream of the hard water storage or located in the hard water storage.2. The ion removal system according to claim 1 ,wherein the metal ion is a calcium ion; andthe particle is calcium carbonate.3. The ion removal system according to claim 1 ,wherein the particle feeder includes: a particle feeding mechanism connected to the feeding point to bring the particle to the feeding point; and a particle storage configured to store the particle to be supplied to the particle feeding mechanism.4. The ion removal system according to claim 3 , further comprising an ion removal gas storage configured to store an ion removal gas as a raw material of the fine bubble generated by the fine bubble generator claim ...

HIGH EFFICIENCY ELECTROLYTIC OZONE PRODUCTION SYSTEM

Illustrative embodiments employ catholyte scrubbers to provide higher concentrations of ozone in ozonated water than was possible in prior art systems and methods. Moreover, some embodiments employ scrubbers to increase the efficiency of production of ozonated water by producing such higher concentrations of ozone in ozonated water using the same amount, or less, power than prior art systems and methods. Some embodiments employ scrubbers to enable production of water with higher concentrations of ozone, and/or ozonated water in which the concentration of ozone decays more slowly, as compared to prior art methods. 1. A system for generating ozonated water , the system comprising: an anode passage in fluid communication with the cell input, the anode passage comprising an anode and an anode passage outlet, the anode configured to produce ozonated water (the anode stream) at the anode passage outlet; and', 'a cathode passage comprising a cathode and a cathode passage outlet, the cathode configured to produce a cathode stream at the cathode passage outlet,', 'wherein the cathode passage outlet is fluidly isolated from the anode passage outlet, such that the anode stream is fluidly isolated from the cathode stream;, 'an electrolytic cell having a cell input configured to receive water from a water source and a power input configured to receive electrical power from a power source, the electrolytic cell comprisingan ozonated water output in fluid communication with the anode passage output; anda catholyte discharge conduit comprising a catholyte scrubber in fluid communication with the cathode passage output and configured to receive the cathode stream and to produce scrubbed catholyte.2. The system of claim 1 , wherein the electrolytic cell further comprises a hydrogen-permeable (PEM) membrane disposed to fluidly isolate the anode passage from the cathode passage.3. The system of claim 1 , wherein the catholyte discharge conduit is in fluid communication with the water ...

OSMOTIC SEPARATION SYSTEMS AND METHODS

The invention generally relates to osmotically driven membrane systems and processes and more particularly to systems and processes for handling feed streams without pretreatment and increased brine concentration for zero liquid discharge, including forward osmosis separation (FO), direct osmotic concentration (DOC), pressure-assisted forward osmosis (PAFO), and pressure retarded osmosis (PRO). The system includes: a plurality of forward osmosis units, each having a semi-permeable membrane assembly and a tank; and a separation system in fluid communication with the plurality of forward osmosis units and configured to separate the dilute draw solution into the concentrated draw solution and a solvent system. 1. A system for osmotic extraction of a solvent from a first solution , the system comprising: a semi-permeable membrane assembly comprising a framework and a plurality of membranes coupled thereto and having first sides and second sides, where the first sides define a first plurality of channels for receiving the first solution and the second sides define a second plurality of channels for receiving a concentrated draw solution, wherein the membranes are configured for osmotically separating the solvent from the first solution, thereby forming a more concentrated first solution in the first plurality of channels and a dilute draw solution in the second plurality of channels; and', 'a tank configured for receiving the semi-permeable membrane assembly and the first solution, wherein the semi-permeable membrane assembly is at least partially submerged within the tank;, 'a plurality of forward osmosis units, each comprisinga separation system in fluid communication with the plurality of forward osmosis units and configured for receiving the dilute draw solution from the forward osmosis units, the separation system comprising means for separating the dilute draw solution into the concentrated draw solution and a solvent stream;a plurality of recirculation systems, ...

SYSTEMS AND METHODS FOR WATER FILTRATION

A water filtration systems may comprise an under the sink RO water filtration system that is plumed into a building's water supply. For example, the water filtration systems may include an RO device at least partially installed underneath a sink, with the tap water connection plumbed directly to the sink cold water supply line, and a waste water drain line connected directly to the sink drain, such as the p-trap. 1. A reverse osmosis water treatment system , comprising:a source of water;a water tank comprising a first inlet, a second inlet, and an outlet, wherein the first inlet of the water tank is in fluid communication with the source of water by way of a first pipe;a filter system comprising an inlet, a first outlet, and a second outlet, wherein the inlet of the filtration system is in fluid communication with the outlet of the water tank by way of a second pipe, wherein the first outlet of the filter system is in fluid communication with the second inlet of the water tank by way of a third pipe, wherein the first outlet of the filter system supplies waste water from the filter system to the water tank, and wherein the water tank comprises a mixture of water from the source of water and waste water from the filter system;a faucet in fluid communication with the second outlet of the filter system, wherein the second outlet of the filter system supplies filtered water to the faucet;a pump disposed in fluid communication along the second pipe between the water tank and the filter system; anda valve disposed in fluid communication along the second pipe between the pump and the filter system and in fluid communication with a drain by way of a fourth pipe, wherein the valve diverts a first portion of water from the water tank to the filter system via the second pipe, and wherein the valve diverts a second portion of water from the water tank to the drain via the fourth pipe.2. The system of claim 1 , wherein the filter system further comprises:a first filter and a ...

Methods, compositions and devices for maintaining chemical balance of chlorinated water

A composition-of-matter for use in water treatment, composed of a water-insoluble matrix and one or more amidohydrolase, such as cyanuric acid amidohydrolase, incorporated in or on the matrix, is disclosed. Also disclosed are devices containing same and methods utilizing same for water treatment. The water treatment is effected by an enzymatically-catalyzed reduction of the concentration of an amide-containing compound, such as cyanuric acid, found in chlorinated water of swimming polls, spas and other similar structures.

MAINTAINING A STEADY MICROBIAL COMMUNITY IN A COMBINED ANAEROBIC-AEROBIC APPARATUS

A method and an apparatus for maintaining a stable microbial community in a combined anaerobic-aerobic waste processing system. The system comprises cycling of waste activated sludge between reactors, thereby ensuring a healthy microbial community and an efficient waste decomposition. 1. A method for maintaining a steady microbial community in a combined anaerobic-aerobic apparatus , comprising at least two anaerobic reactors and at least one aerobic reactor , each of said reactors being in recycling communication with at least one other reactor , the reactors containing wastewater and suspended waste activated sludge (WAS) in which said microbial community is comprised , comprising the steps ofi) transferring a portion of said WAS from said at least one aerobic reactor to at least one of said at least two anaerobic reactors; andii) transferring a portion of said WAS between said at least two anaerobic reactors;said microbial community comprising Archea, wherein said Archea constitute at least 4% of the microbial community in said anaerobic reactors, and wherein at least 25% of said Archea in said anaerobic reactors are methanogens.2. A method according to claim 1 , wherein the microbial community further comprises polyphosphate-accumulating bacteria (PAB) claim 1 , hydrolytic bacteria claim 1 , fermentative acidogenic bacteria claim 1 , and acetogenic bacteria.3. A method according to claim 1 , wherein at least 70% of said WAS is transferred in step (i) and/or step (ii).4. A method according to claim 1 , wherein at least 80% of said WAS is transferred in step (i) and/or step (ii).5. A method according to claim 1 , wherein at least 90% of said WAS is transferred in step (i) and/or step (ii).6. The method of claim 5 , wherein said recycling is performed in 2 to 6 batches per day.7. The method of claim 1 , resulting in at least partial removal of sodium from feedstock waste.8. An apparatus for maintaining a steady microbial community during the processing of feedstock ...

APPARATUS AND ARRANGEMENT FOR INTRODUCING A GAS INTO A MAIN MEDIUM IN PARTICULAR IN WASTE WATER TREATMENT

Apparatus for introducing a gas into a main medium, comprising: a main conduit for guiding the main medium, a multitude of injection lines for guiding the gas, wherein each of the injection lines has a respective end section with a respective outlet opening situated within the main conduit, and wherein the end sections are oriented essentially parallel to each other and to the main conduit. With the apparatus a gas can be introduced in particular into waste water for obtaining a biologically activated sludge. Thereby, interaction between the gas and the waste water can be particularly pronounced due to a particularly large liquid-gas-interface caused by particularly extensive turbulences. Further, shear stress acting on particles in the activated sludge can be advantageously low, thus avoiding damage of the biological particles. 114.-. (canceled)16. The apparatus of claim 15 , wherein claim 15 , in a cross section perpendicular to the main conduit claim 15 , the end sections of the injection lines are arranged on concentric circles.17. The apparatus of claim 16 , wherein one of the injection lines is an inner injection line and the remaining injection lines are outer injection lines claim 16 , wherein the end sections of the outer injection lines are radially spaced apart from the end section of the inner injection line.18. The apparatus of claim 17 , wherein the end sections of the outer injection lines are equally spaced apart from each other in a circumferential direction.19. The apparatus of claim 19 , wherein the outlet openings of the outer injection lines are arranged in a plane perpendicular to the main conduit.2011. The apparatus of claim 15 , wherein the outlet opening of the inner injection line () is arranged downstream of the outlet openings of the outer injection lines.21. The apparatus of claim 15 , wherein the main conduit comprises a narrowing downstream of the outlet opening of all the injection lines.22. The apparatus of claim 15 , wherein a ...

Method and apparatus for preventing bacteria proliferation in an electric water heater

A method and an apparatus is described for preventing bacteria proliferation in a bottom end of a water holding tank of an electric water heater. Different water convection devices are described for convecting heated water from inside the tank and into the bottom end of the tank to raise the temperature at the bottom end sufficiently high to prevent bacteria growth and particularly at a temperature of at least 46 degrees C. where the bacteria can not survive. The temperature at the bottom end of the tank is monitored and the convection devices controlled to maintain the desired hot water temperature. An added benefit of the invention is that it also prevents sediment deposits and water temperature stratification in the tank bottom end section. 1. A method of preventing bacterial growth in a bottom end of a water holding tank of an electric water heater wherein said bottom end has a dome-shaped bottom wall defining a cavitated zone thereabout , said method comprising the steps of:(i) sensing water temperature at said bottom end of said water holding tank,{'i': Legionella', 'Legionella, '(ii) convecting heated water from above said dome-shaped bottom wall, where said heated water is at a temperature sufficient to prevent bacteria growth, and into said bottom end of said water holding tank and said cavitated zone to maintain the temperature of water in said bottom end of said water holding tank and said cavitated zone at said a temperature sufficient to prevent bacteria growth, and'}{'i': 'Legionella', '(iii) controlling a duration of said step of convecting in relation to said sensed temperature to maintain water temperature preventing said bacteria growth.'}2. The method as claimed in wherein said water holding tank has a cylindrical side wall claim 1 , a top wall and said dome-shaped bottom wall; a cold water inlet disposed for releasing cold water under pressure in a lower portion of said tank above said dome-shaped bottom wall claim 1 , two or more resistive ...

Organic wastewater treatment method and organic wastewater treatment device

An organic wastewater treatment device includes a biological treatment tank in which biological treatment units are connected in series along a flow of organic wastewater. Each biological treatment unit has a pair of an anoxic tank disposed on an upstream side, and an aerobic tank disposed on a downstream side in which a membrane separation device is immersed in activated sludge. The activated sludge returns from a most downstream-side aerobic tank to a most upstream-side anoxic tank through a sludge return path. Whether to stop an operating membrane separation device and whether to start a stopped membrane separation device are determined for each biological treatment unit based on at least one of an inflow amount of the organic wastewater, a tank water level, a transmembrane pressure difference of each membrane separation device, a T-N concentration of the treated water, and an NH3-N concentration of the treated water as an index.

ANAEROBIC PHOTOBIOREACTOR AND METHOD FOR BIOMASS CULTIVATION, WASTEWATER TREATMENT, NUTRIENTS RECOVERY, ENERGY PRODUCTION AND HIGH-VALUE PRODUCTS SYNTHESIS

The present invention is related to an anaerobic photobioreactor and a method for active biomass cultivation, wastewater treatment, nutrients recovery, energy production and high-value products synthesis. Phototrophic bacteria are cultured in the anaerobic photobioreactor lighted with solar or artificial irradiation where certain light wavelengths are selectively discarded with a light selector installed on the top of the photobioreactor. In this light-based process wastewater treatment and resources recovery, like nutrients and high-value bioproducts (fertilizers, polymers and proteins) present in wastewater are performed simultaneously. Cultured biomass is treated by anaerobic digestion for biofuel production, including optative hydrolytic pre-treatment, and/or valuable bioproducts can be obtained in a downstream process. 1. An anaerobic photobioreactor for biomass cultivation , wastewater treatment , nutrients recovery , energy production and high-value products synthesis , comprising:a. a horizontal closed anaerobic ditch;b. an inlet and an outlet of wastewater, both connected to an internal space of the anaerobic ditch body;c. a covered wastewater circulation system inside the anaerobic ditch;d. a lid covering the anaerobic ditch to block light at wavelengths below 750 nm;e. a cylindrical sampling tube submerged into the anaerobic ditch and stuck to the lid, to perform water and biomass analysis and control the headspace pressure;f. a biomass recirculation pipe from a biomass to the anaerobic ditch; andg. a biomass outlet line from the biomass separator.2. The anaerobic photobioreactor according to claim 1 , wherein the photobiorector is lightened with a light source characterized by a wavelength between 750 and 1200 nm.3. The anaerobic photobioreactor according to claim 2 , wherein the light is solar irradiation.4. The anaerobic photobioreactor according to claim 1 , wherein the covering lids are made of glass or PPMA claim 1 , and the selective monochromatic ...

SPLIT TYPE CONTINUOUS OPERATION MICRO-GRID DYNAMIC MEMBRANE BIOREACTOR

Disclosed is a split type continuous operation micro-grid dynamic membrane bioreactor. The split type continuous operation micro-grid dynamic membrane bioreactor comprises a biological treatment unit and a drum type dynamic membrane filtration unit, wherein the biological treatment unit comprises a microbiological treatment tank, and a water inlet pipe is arranged on the microbiological treatment tank; the drum type dynamic membrane filtration unit comprises a filter tank, and a drum micro-grid dynamic membrane mechanism is arranged in the filter tank; the drum micro-grid dynamic membrane mechanism comprises a filter drum, a backwashing device is arranged above the filter drum, and a sludge collecting bank is arranged in the filter drum; a water outlet is formed in the bottom of the filter tank; a mixed liquid pipe is arranged between the microbiological treatment tank and the filter drum; and a sludge discharge header pipe is arranged on the sludge collecting tank. 11020. A split type continuous operation micro-grid dynamic membrane bioreactor , comprising a biological treatment unit () and a drum type dynamic membrane filtration unit () , wherein{'b': 10', '11', '11, 'the biological treatment unit () comprises a microbiological treatment tank (), and the microbiological treatment tank () comprises an aerobic treatment tank, an anoxic treatment tank and an anaerobic treatment tank;'}{'b': 20', '21', '21, 'the drum type dynamic membrane filtration unit () comprises a filter tank (), and a drum micro-grid dynamic membrane mechanism is arranged in the filter tank ();'}{'b': 22', '24', '22', '23', '22', '22', '25', '22, 'the drum dynamic membrane mechanism comprises a filter drum (), a backwashing device () used for washing the filter drum () and keeping the thickness of a dynamic biological membrane () formed on the filter drum () within a set thickness range is arranged above the filter drum (), and a sludge collecting tank () used for collecting the washed dynamic ...

Fluid Treatment System

A fluid treatment system ( 2 ) for treating a fluid ( 4 ), the system ( 2 ) comprises: —a translucent sleeve ( 6 ) surrounding at least one light source ( 8 ) and mounted within a cell ( 10 ) of the system ( 2 ); —a housing ( 12 ) configured to receive the sleeve ( 6 ) therein, a hollow cavity ( 18 ) is defined between an outer surface ( 14 ) of the sleeve ( 6 ) and an inner surface ( 16 ) of the housing ( 12 ) defining a cavity for flowing the fluid ( 4 ) therein. The system ( 2 ) further comprises: —a fluid flowing device ( 22 ) to flow said fluid ( 4 ) through the hollow cavity ( 18 ) at a velocity of 3 m/s or higher such that the velocity of the fluid in relation to the outer surface ( 14 ) prevents fouling and/or scaling from aggregating on the outer surface ( 14 ) of the sleeve ( 6 ), —a recirculation assembly ( 24 ) configured to recirculate said fluid ( 4 ) through said hollow cavity ( 18 ). In addition a method is provided for treatment of a fluid in the fluid treatment system.

ATMOSPHERIC WATER GENERATOR WITH WATER COOLING SYSTEM

An atmospheric water generator (AWG) with a water cooling system is disclosed. In some embodiments, the AWG includes a cooling compartment defined by walls, designed to comprise a cooling medium and comprising a refrigerant coil. The storage tank for storing the water that are generated by the AWG shares at least a portion of a common wall with the cooling compartment. The refrigerant coil of the cooling compartment is in fluid communication with the refrigeration cycle and designed to be at least partially submerged in the cooling medium. In some embodiments, the stored water tank is submerged in the cooling compartment. Other embodiments are also disclosed. 1. An atmospheric water generator (AWG) comprising:a refrigeration cycle for condensing water from the atmosphere into stored water;a storage tank defined by walls for storing the stored water; anda cooling compartment defined by walls, designed to comprise a cooling medium and comprising a refrigerant coil,wherein:the storage tank and the cooling compartment sharing at least a portion of a common wall separating the storage tank from the cooling compartment having one surface of the wall facing the storage tank and the other surface of the wall facing the cooling compartment; andthe refrigerant coil being in fluid communication with the refrigeration cycle and designed to be at least partially submerged in the cooling medium.2. The AWG according to wherein the common wall is adapted to transfer heat from the stored water in the storage tank through the common wall to the cooling medium in the opposite face of the common wall and from the cooling medium to the refrigerant coil.3. The AWG according to wherein the refrigeration cycle comprises a valve having at least two states: In a first state claim 1 , the valve directs the refrigeration cycle to an evaporator for condensation of water from the atmosphere; in a second state the valve directs the refrigeration cycle to the refrigerant coil for chilling the ...

Desalination

A membrane stack comprising the following components: (a) a first ion diluting compartment (D1); (b) a second ion diluting compartment (D2); (c) a first ion concentrating compartment (C1); (d) a second ion concentrating compartment (C2); and (e) a membrane wall (CEM1, mAEM, mCEM, AEM, CEM2) between each compartment and on the outside of the first and last compartment of the stack; wherein: (i) each membrane wall comprises a cation exchange membrane (CEM1, mCEM, CEM2) or an anion exchange membrane (mAEM, AEM) and the order of the cation and anion exchange membranes alternates from each wall to the next; (ii) the membrane walls (mAEM, mCEM) on each side of compartment (a) both have a higher monovalent ion selectivity than the corresponding membrane walls (AEM, CEM2) on each side of compartment (b); and (iii) the stack further comprises a means for communicating fluid between compartments (a) and (b).

Electrooxidation at elevated pressures

There are provided electrooxidation systems and processes which provide an elevated pressure at which components are oxidized in an electrooxidation cell. The elevated pressure reduces power consumption for the cell at least in part by reducing the formation of gas bubbles, which typically leads to increased resistance and an increased power output.

Cartridge for Preparing Drinking Water, and Method for Preparing Drinking Water

A cartridge for treating drinking water, comprising two chambers, wherein one chamber is filled with a highly acidic ion-exchange material and another chamber is filled with a weakly acidic ion-exchange material, wherein one of the ion-exchange materials is loaded with alkali ions or alkaline earth ions. 1. A cartridge for treating drinking water , comprising an ion-exchange material , a first part thereof being loaded with alkali ions or alkaline earth ions , and a second part being loaded with hydrogen ions , wherein the cartridge comprises a first chamber containing a highly acidic ion-exchange material , and at least one further chamber containing a weakly acidic ion-exchange material.2. The cartridge for treating drinking water as claimed in claim 1 , wherein the first chamber contains the highly acidic ion-exchange material and is loaded with alkali ions or alkaline earth ions to at least 60% of its capacity.3. The cartridge for treating drinking water as claimed in claim 1 , wherein the first chamber contains the highly acidic ion-exchange material and is loaded with hydrogen ions to at least 50% of its capacity.4. The cartridge for treating drinking water as claimed in claim 1 , wherein the ion-exchange material in the first or in the further chamber is in form of granulated material.5. The cartridge for treating drinking water as claimed in claim 1 , wherein the ion-exchange material in the first or in the further chamber is in form of an ion-exchange non-woven fabric.6. The cartridge for treating drinking water as claimed in claim 1 , wherein the ion-exchange material is provided with a ratio of highly acidic to weakly acidic ion-exchange material from 1:9 to 9:1.7. The cartridge for treating drinking water as claimed in claim 1 , wherein the cartridge is adapted for dividing water to be treated into at least two partial streams claim 1 , one partial stream passing through the first chamber and a further partial stream passing through the further chamber.8 ...

ARRANGEMENT AND METHOD FOR PRODUCING A FLOW IN A WASTEWATER TREATMENT TANK

The invention relates to an arrangement for producing a flow in a wastewater treatment tank (), comprising a substantially horizontal bottom (B) and a horizontal mixer (), which is provided in the wastewater treatment tank () and which has a propeller () driven by means of a propeller shaft (). According to the invention, in order to save energy to produce flows, the axis (A) of the propeller shaft () is tilted relative to the bottom (B) by an angle α of 1 to 10° in such a way that a flow directed toward a surface (O) of the wastewater (W) can be produced by the horizontal mixer (). 110-. (canceled)11. An arrangement for producing a flow in a wastewater treatment tank , comprising a substantially horizontal bottom and a horizontal mixer , which is provided in the wastewater treatment tank and which has a propeller driven by means of a propeller shaft ,wherein the wastewater treatment tank is a circulation basin formed by a circumferential channel and a circulating flow is produced by the horizontal mixer, wherein the axis of the propeller shaft is tilted relative to the bottom by an angle α of 3 to 5° in such a way that a flow directed toward a surface of the wastewater is produced by the horizontal mixer.12. The arrangement according to claim 11 , wherein an aeration device for aerating the wastewater is provided on the bottom.13. The arrangement according to claim 11 , wherein the aeration device is provided downstream of the horizontal mixer.14. A method for producing a flow in a wastewater treatment tank claim 11 , comprising a substantially horizontal bottom and a horizontal mixer claim 11 , which is provided in the wastewater treatment tank and which has a propeller driven by means of a propeller shaft claim 11 ,Wherein the wastewater treatment tank is a circulation basin formed by a circumferential channel and a circulating flow is produced by the horizontal mixer, wherein the horizontal mixer is arranged such that the axis of the propeller shaft is tilted ...

Water filter cartridge with air conduction

The present invention relates to a water filter cartridge, with a housing and a flow path for air for ventilating a water tank storing water to be processed by the water filter cartridge. The latter is distinguished in that the flow path has a first water barrier.

Conditioning of Aquarium Water

A mobile treatment system having a mobile or wheelable container able to receive a secondary volume of water separate from the primary volume of water of the aquarium; a pump mountable to a portion of the mobile container, a first Inlet of the pump able to draw water from a portion of the mobile container, a first outlet of the pump connectable for selectively directing water drawn into the first Inlet back into the mobile container after conditioning of the water, a second inlet able to draw conditioned water from a portion of the mobile container having the conditioned water; a second outlet allowing transfer of the conditioned water from the mobile container to the aquarium, wherein the water is conditioned in the secondary volume of the mobile container at a position remote to the aquarium. 117.-. (canceled)18. A water replenishment apparatus that prepares a volume of water from a domestic water supply for delivery to an aquarium , the apparatus including:a first domestic water inlet that is configured to receive water from a domestic water supply and is configured to transfer the water to a container separate from the aquarium, the inlet including a water condition sensor that senses a condition of the domestic water flowing through the inlet;a water re-circulator including a re-circulating flow path that has a second inlet positioned to receive water from within the container, an outlet that delivers the water back to the container and a water pump that pumps water through the re-circulating flow path and a conditioner that changes a condition of water flowing through the re-circulating flow path; anda water delivery system that is configured to extract conditioned water from the container and is configured to pump the extracted water into a transfer line for delivering the extracted water into an aquarium.19. The water replenishment apparatus of claim 18 , wherein the water re-circulator includes an air inlet positioned to aerate a flow of water through the ...

APPARATUS AND METHOD FOR OPTIMIZING HYDRO-CYCLONE SEPARATION IN A FILTERING SYSTEM

An apparatus and method for optimizing hydro-cyclone separation in a filtering system is disclosed. The apparatus includes a first, second and third storage tanks, a pump, a motor, a variable speed drive, and a hydro-cyclone. The pump pulls fluid from the third storage tank and routes it to the hydro-cyclone where particles are separated out. The filtered fluid is then routed onto a mechanism, such as a car wash, where the clean fluid is utilized. Since the car wash cannot always use all of the filtered fluid, a controller monitor flow rate and fluid pressure, and operates a proportional fluid control valve to bypass some or all of the fluid routed to the car wash and redirect it back to the second storage tank. This process allows the hydro-cyclone to operate at maximum efficiency while flow to the carwash may vary. The dirty particles separated out by the hydro-cyclone are routed to the first storage tank. 1. An apparatus for optimizing hydro-cyclone separation in a filtering system , comprising:a) a first storage tank, a second storage tank and a third storage tank sequentially fluidly connected;b) a pump driven by a motor having a variable speed drive, said pump having an inlet and an outlet;c) a first fluid line connecting said third storage tank to said inlet of said pump;d) a hydro-cyclone having an inlet port, a first outlet port and a second outlet port, said hydro-cyclone being positioned downstream of said pump;e) a second fluid line connecting said outlet of said pump to said inlet port of said hydro-cyclone;f) a first pressure transducer positioned across said second fluid line for measuring pump pressure;g) a third fluid line connecting said first outlet port of said hydro-cyclone to a mechanism dispensing filtered fluid;h) a flow transducer positioned across said third fluid line for measuring fluid flow;i) a second pressure transducer positioned across said third fluid line downstream of said flow transducer for measuring output pressure;j) a fourth ...

Recrystallization Water Treatment System and Heat-Exchange Devices (Embodiments) for Its Implementation

The present invention relates to treatment systems for polluted and sea water by recrystallization and may be used in everyday life, the food industry, in the catering business and healthcare. 1. Recrystallization water treatment system that contains at least two heat-exchange devices with chambers for water freezing and ice melting , cooling and heating components , a water circulation loop , which is connected with the chambers of the heat-exchange devices capable of draining pre-treated water from one chamber and supplying it to another one for final treatment; a refrigerant circulation loop connected with cooling and heating components capable of alternating water freezing and ice melting steps in chambers of the heat-exchange devices and transfer of the heat of the refrigerant formed in the chamber during water freezing into the ice melting chamber; and the control and monitoring tool connected with the water and refrigerant circulation loops and capable of reversing water and refrigerant streams during alternating water freezing and ice melting steps; thereat , the water circulation loop contains a tool for the initial water supply , a tool for draining polluted water concentrate , a tool for draining pre-treated water , a tool for draining treated water , a pure water tank , and the tank for polluted water concentrate; while the refrigerant circulation loop contains a compressor , a water-cooled condenser that exchanges heat with the tank for polluted water concentrate after its draining from heat-exchange chambers , and two heat exchangers; wherein heat-exchange devices are cascaded one under another , and each device contains one chamber with the possibility to divide it into intercommunicated cooling and recirculation cavities; and to circulate water between the said cavities forming equipotential surfaces in the cooling cavity during water freezing; the refrigerant circulation loop contains an additional air-cooled condenser , the inlet and outlet of ...

Reactor for Substrate Oxidation

A reactor and process for the oxidation of substrates, comprising: a first reaction chamber configured to dissolve substrates in a fluid, the first reaction chamber comprising a linking outlet; the linking outlet being connected to a tubular reaction chamber downstream of the first reaction chamber, conditions in the first reaction chamber being subcritical for the fluid, and conditions in the tubular reaction chamber being supercritical for the fluid carrying the dissolved substrates

System and method for waste treatment

System and methods for treating multi-component waste streams. In general, systems and methods described herein employ a first chamber and a second chamber separated by a barrier and a filtration component that is fluidically connected to the first and second chambers. A waste stream to be treated will flow into the first chamber for treatment of the carbon-containing waste, then into the filtration component for the separation of the stream into a solid waste fraction and a liquid waste fraction.

Fail Safe Flushing BioReactor for Selenium Water Treatment

A biological reactor system treats concentrated contaminated water with a combination of upflow and downflow bioreactors that are downstream from a reverse osmosis or other concentrator. The system may have a fail safe configuration where flush water may be introduced to the reactors in the event of a power failure or when taking the reactors offline. Many reverse osmosis systems introduce antiscalant treatments upstream so that the reverse osmosis filters do not scale. However, such treatments result in superconcentrated conditions of the antiscalants in the contaminated water processed by the bioreactors. A flushing system may deconcentrate the bioreactors to prevent the antiscalants from precipitating and fouling the bioreactors.

Method for directly and deeply purifying high concentration organic wastewater

A method for directly and deeply purifying high concentration organic wastewater, specifically includes following steps of: (1) fortified precipitation treatment; (2) rapid filtration of sediment of suspended solids; (3) pH value adjustment; (4) hydrolysis acidification: pH value adjusted waste water enters a water distribution unit in which biological hanging film filter is arranged to fortify an anaerobic hydrolysis acidification function of the waste water; and (5) bio-filter treatment. A rapid and low cost treatment method for high concentration, high ammonia and high nitrogen organic waste water is provided by means of water and air distribution by the biological filtering bed, an air-water backwashing bed layer structure, setting of a temperature regulation system for the biological filtering bed, and a combined process of the biological filtering bed with a fortified sedimentation unit, a suspension object sediment rapid filtration unit, and like unit structures. 1: A method for directly and deeply purifying high concentration organic wastewater , specifically comprising steps of:(1) fortified precipitation treatment: sending high-concentration organic wastewater to an enhanced precipitation unit for pretreatment, wherein the enhanced precipitation unit comprises a dosing and coagulation unit, a dosing and flocculation unit and a physical precipitation unit;(2) rapid filtration of sediment of suspended solids: passing the wastewater treated by the enhanced precipitation unit through a sediment of suspended solids filtration unit, wherein a filter material of the sediment of the suspended solids filtration unit is selected from gravel and/or river sand, and particle size distribution of the filter bed comprises: 2-4 cm of a surface layer, 1-2 cm of a middle and upper layer, and 0.5-1 cm of a lower layer;(3) pH adjustment: performing alkalinity adjusting pretreatment on the wastewater after the rapid filtration of the sediment of the suspended solids in the ...

Water Purification And Dispensing System And Method

The invention provides a water purification and dispensing system, preferably for producing ultrapure water and offering the purified water at one or more dispensing sites in a desired volume. The water purification and dispensing system comprises a (closed) water recirculation loop including a water inlet for introducing water to be purified, pumping means for pumping water through said water recirculation loop in a flow direction, water purification means for purifying water downstream of said water inlet, a dispensing portion of the water recirculation loop including one or more outlet(s) for purified water branched from said water recirculation loop downstream of said water purification means, a first valve arranged between each outlet and said water recirculation loop, for controlled dispensing of the purified water from said recirculation loop through the respective outlet, a second valve arranged in said dispensing portion of the water recirculation loop downstream of said first valve(s) and upstream of said pumping means, a bypass passage branched from said water recirculation loop and bypassing said dispensing portion of the water recirculation loop including said first valve(s) and said second valve, and a third valve for controlling the flow rate through said bypass passage.

Waste water treatment system with buffering device and waste water treatment method therefor

Disclosed is a waste water treatment system with a buffering device, the system comprising a waste water pretreatment device, an evaporator, a circulating crystallizer, a crystal filtration device and a water removal device which communicate with each other in sequence, and further comprising a primary buffering device and a secondary buffering device, wherein one end of the primary buffering device is in bi-directional communication with the circulating crystallizer, and the other end thereof is connected to the evaporator; and the secondary buffering device is in bi-directional communication with the circulating crystallizer. Further disclosed is a waste water treatment method for a waste water treatment system with a buffering device.

SYSTEMS AND METHODS FOR ENHANCING EFFICIENCY OF WASTEWATER TREATMENT

A wastewater treatment system is provided for improving the efficiency of existing wastewater treatment plants. In accordance with aspects and embodiments, a wastewater system having a source of wastewater, an effluent, a sludge, a first basin configured to receive the wastewater, and a second basin, in fluid communication with the first basin and configured to receive sludge, may be retrofitted with a closed loop working fluid system. A first membrane system may be arranged in the first basin and a second membrane system may be arranged in the second basin, and a working fluid containing a concentration of at least one solute may be pumped through the first and second membrane systems in a closed loop to enhance overall plant efficiency. 1. A wastewater treatment system comprising:a source of wastewater, an effluent, and a sludge;a first basin configured to receive the source of wastewater, the first basin in fluid communication with a plurality of downstream wastewater treatment modules, the first basin further comprising a first membrane system;a second basin in communication with the plurality of downstream wastewater treatment modules configured to hold the sludge, the second basin further comprising a second membrane system; wherein the first basin and the second basin are in fluid communication with one another and a pump circulates a working fluid containing a concentration of at least one solute.2. The system of claim 1 , wherein the working fluid passes through the first membrane system and is in fluid communication with the source of wastewater.3. The system of claim 2 , wherein the working fluid passes through the second membrane system and is in fluid communication with the sludge.4. The system of claim 3 , wherein the concentration of the at least one solute in the working fluid in the first membrane system is lower than a concentration of the solute in the source of wastewater.5. The system of claim 4 , wherein an osmotic pressure gradient occurs ...

FILTRATION SYSTEMS FOR FAUCETS

Fluid filtration systems that have openings in their sump closures are provided. Spouts for processed fluid may be added to direct flow of processed fluid. The spouts may be attached, permanently or removably, to the sump closures or to media cartridges. The system comprises: an inlet, an unprocessed fluid outlet, and a processed fluid outlet; a sump housing and a sump closure operatively associated therewith, the processed fluid outlet being located through the sump closure; a media cartridge located in the sump housing, the media cartridge providing processed fluid upon contact with unprocessed fluid; and a diverter. Flow of processed fluid may be directed through any desired angle when a rotatable structure is included in the system. Filtration systems may easily be cleaned and/or sanitized. 1. A fluid filtration system for a faucet , the system comprising:an inlet, an unprocessed fluid outlet, and a processed fluid outlet;a sump housing and a sump closure operatively associated therewith, the processed fluid outlet being located through the sump closure;a media cartridge located in the sump housing, the media cartridge providing processed fluid upon contact with unprocessed fluid; anda diverter having a first position where the inlet is in fluid communication with the unprocessed fluid outlet, and a second position where in the inlet is in fluid communication with the processed fluid outlet.2. The fluid filtration system of further comprising a processed fluid spout that directs flow of processed fluid.3. The fluid filtration system of claim 1 , wherein the sump closure is attached to a media element of the media cartridge.4. The fluid filtration system of comprising a media cartridge that comprises a media element claim 1 , a first end cap sealed to the media element claim 1 , and a second end cap comprising the sump closure sealed to the media element and comprising a sealing mechanism that operatively engages with the sump housing.5. The fluid filtration ...

STORAGE AND DELIVERY FOR A WATER TREATMENT SYSTEM AND METHOD OF USING THE SAME

A system to increase the water recovery ratio and efficiently save water in a water treatment and delivery system, particularly for a water treatment system that may be used for water softening, and more particularly for a water treatment system that employs capacitive deionization technology. Stored product water is delivered without the implementation of an additional pump, and the stored product water is used to recover water in a storage tank without having to send water to drain. 1. A fluid treatment system having an increased fluid recovery ratio , comprising:a fluid drive source;a fluid treatment device receiving fluid from said drive source and producing treated or filtered product fluid;a first valve between said fluid drive source and said fluid treatment device, and a first conduit network, directing fluid flow from said drive source to said fluid treatment device;a pressurized storage tank downstream of said fluid treatment device, said storage tank having an internal volume, and including:a first fluid port in fluid communication with said fluid treatment device;an expandable bag or bladder within said internal volume and connected to said first fluid port, said bladder in fluid communication with said fluid treatment device and separating said product fluid from fluid within said internal volume but external said bladder;a second conduit network directing fluid flow from said fluid treatment device to a said pressurized storage tank and a delivery port;a second fluid port in fluid communication with said fluid within said internal volume but external said bladder; anda second valve between said second fluid port of said storage tank and said delivery port, and a third conduit network, connecting said second fluid port of said storage tank to said delivery port,a fourth conduit network connecting said second valve and said second fluid port to said fluid treatment device,said second conduit network configured to allow said product fluid to flow from ...

LIQUID TREATMENT METHOD AND LIQUID TREATMENT APPARATUS

The present disclosure provides a liquid treatment method and apparatus according to which poorly treated liquid is prevented from being discharged to the outside thereof. The liquid treatment apparatus of the present disclosure comprises a channel switch, a return channel that establishes communication between the channel switch and an internal space of a first tank, and a discharge channel that establishes communication between the channel switch and the outside of the liquid treatment apparatus. In the circulation state, the liquid mixture is circulated in the liquid treatment apparatus so as to return a liquid to the first tank through the return channel. If a concentration of the photocatalyst particles contained in the first tank falls within a predetermined range, the channel switch is switched from the circulation state to the discharge state to discharge the liquid to the outside of the liquid treatment apparatus. 1. A liquid treatment method using a liquid treatment apparatus , the method comprising: a first tank having an internal space for storing liquid mixture containing photocatalyst particles;', 'a light source for emitting ultraviolet light with which the photocatalyst particles are irradiated;', 'a second tank comprising a filtration membrane therein and having an internal space divided into a first chamber and a second chamber with the filtration membrane;', 'a communication channel that establishes communication between the internal space of the first tank and the second chamber of the second tank;', 'a filtering pump for decompressing the first chamber of the second tank;', 'a channel switch;', 'a return channel that establishes communication between the channel switch and the internal space of the first tank; and', 'a discharge channel that establishes communication between the channel switch and an outside of the liquid treatment apparatus,, '(la) providing the liquid treatment apparatus comprising the liquid mixture is guided from the ...

FLUID PURIFICATION SYSTEM

Certain disclosed embodiments concern systems and methods of preparing dialysate for use in a home dialysis system that is compact and light-weight relative to existing systems and consumes relatively low amounts of energy. The method includes coupling a household water stream to a dialysis system; filtering the water stream; heating the water stream to at least about 138 degrees Celsius in a non-batch process to produce a heated water stream; maintaining the heated water stream at or above at least about 138 degrees Celsius for at least about two seconds; cooling the heated water stream to produce a cooled water stream; ultrafiltering the cooled water stream; and mixing dialysate components into the cooled water stream in a non-batch process. 1. A fluid purification system comprising:a pump adapted to pump household water through a pump outlet;a microfluidic heat exchanger downstream of the pump and coupled to the fluid flow pathway, the microfluidic heat exchanger comprising an inlet in fluid communication with the pump outlet, an inflow microchannel downstream of the inlet, a heater downstream of the inflow microchannel, an outflow microchannel downstream of the heater and in thermal communication with the inflow microchannel to permit heat transfer between water flowing in the outflow microchannel and water flowing in the inflow microchannel, the microfluidic heat exchanger being configured to heat the water to a pasteurization temperature, maintain the water at the pasteurization temperature for a period of time effective to pasteurize the water, and cool the pasteurized water to a temperature lower than the pasteurization temperature; anda mixer downstream of the microfluidic heat exchanger, the mixer comprising dialysate components for addition to water flowing from the microfluidic heat exchanger.2. The system of wherein the microfluidic heat exchanger further comprises a plurality of inflow microchannels in fluid communication with the inlet and a plurality ...

FLUID STERILIZATION APPARATUS

A fluid sterilization apparatus includes: a flow passage tube in which a processing passage where a passing fluid is sterilized is formed; a first light source that irradiates the processing passage with ultraviolet light; an inflow passage formed in a direction that intersects an outer circumferential surface of the flow passage tube; and a communication passage that causes the inflow passage to communicate with the processing passage. The communication passage has a narrow passage in the middle of a path from the inflow passage toward an opening of a first end, the narrow passage being narrower than a passage toward the inflow passage. 1. A fluid sterilization apparatus , comprising:a flow passage tube in which a processing passage where a passing fluid is sterilized is formed;a light source that irradiates the processing passage with ultraviolet light;an inflow passage or an outflow passage formed in a direction that intersects an outer circumferential surface of the flow passage tube; andan outflow tube or an inflow tube that forms the outflow passage or the inflow passage,wherein the outflow tube or the inflow tube is mounted on an opening formed on an outer circumferential surface of the flow passage tube or on an outer circumferential surface of a housing that covers an opening of one end of the flow passage tube and an outer circumferential surface near the opening, the outflow tube or the inflow tube being supported so as to be rotatable relative to the flow passage tube or the housing around a center of the opening.2. The fluid sterilization apparatus according to claim 1 , further comprising:a communication passage that causes the inflow passage or the outflow passage to communicate with the processing passage,wherein the communication passage has a narrow passage in the middle of a path from the inflow passage or the outflow passage toward an opening of one end of the flow passage tube, the narrow passage being narrower than a passage toward the inflow ...

Transportable modular system for emergency treatment of water polluted by liquid hydrocarbon spillage

A transportable modular system for emergency treatment of water polluted by liquid hydrocarbon spillage comprises: at least a first containerized treatment module, comprising a container in the form of a standard size intermodal container which houses a coalescence separator device, configured to operate an oil/water separation; a suction pipe having a first end connected to the coalescence separator device and a second end provided with an inlet connected to at least one floating skimmer; a pump positioned on the suction pipe; a water drain pipe and an oil drain pipe, connected to a water outlet and an oil outlet, respectively, of the coalescence separator device.

Household water purification system

A household water purification system provided in the present model mainly includes: a pre-filter; a reverse osmosis membrane filter element; a first one-way valve and a second one-way valve; a switching device, used for connecting or disconnecting a water path between a water outlet of the pre-filter and a water inlet of the reverse osmosis membrane filter element; a water storage tank, having a first cavity used for accommodating pure water and a second cavity used for accommodating tap water treated by the pre-filter; a water tap, having a water inlet communicating with a water outlet of the second one-way valve through a water path; and a mechanical automatic reversing valve, used for connecting a water path between a second port and a fourth port and meanwhile disconnecting a water path between a third port and the fourth port; or disconnecting a water path between a second port and a fourth port and meanwhile connecting a water path between a third port and the fourth port according to a change in pressure of a first port of the mechanical automatic reversing valve. The household water purification system provided in the present model not only can reduce equipment costs, fault rate, and safety risk, but also can improve use comfort of a user.

WATER DISTRIBUTION UNIT FOR WATER RECIRCULATION SYSTEM

The present invention describes a system () enabling treating water from a water tank (), which water tank () is arranged in a water distribution architecture also comprising one or more user units (), said system () also enabling recycling of water or discarding of water not suitable to recycle, said system () comprising a water distribution unit (), at least one water treating unit () and a sensor unit () arranged for measurement of at least water quality, said water distribution unit () comprising one common user unit inlet connectable via piping to said one or more user units () on their used water output side; said water distribution unit () further comprising a contaminated water outlet (); and said water distribution unit () further comprising at least one water recirculation port () connectable via piping to the water tank () to enable flowing water between the water distribution unit () and the water tank (); and wherein said at least one water treating unit () enables to treat water to increase the water quality thereof and where the sensor unit () is connected to a control unit, which, based on the measurement of the water quality, is arranged to decide if water should be recycled to the water tank () from the water distribution unit () or should be discarded via the contaminated water outlet () from the water distribution unit (). 1. A system enabling treating water from a water tank , which water tank is arranged in a water distribution architecture also comprising one or more user units , said system also enabling recycling of water or discarding of water not suitable to recycle , said system comprising a water distribution unit , at least one water treating unit and a sensor unit arranged for measurement of at least water quality ,said water distribution unit comprising one common user unit inlet connectable via piping to said one or more user units on their used water output side;said water distribution unit further comprising a contaminated water ...

Devices and methods for the remediation of groundwater

Provided herein are devices, systems, and methods for removing contaminant ions from water within an aquifer. The devices, systems, methods employ an elecrokinetic driving force to induce the migration of charged species towards electrodes, where they can be concentrated and removed from the aquifer. In this way, the devices, systems, methods described herein can be used to economically remediate groundwater contaminated with charged species.

METHOD FOR MIXING INDUSTRIAL WASTE WATER WITHIN A GRAVITY SETTLING TANK

A method for static mixing in a waste water settling tank to increase the percentage of recovery of entrained solids from the waste water comprising a settling tank having a recirculation ring and a hopper bottom defining a sludge hopper, a fluid deflector centrally disposed within the space contained in the hopper bottom having a flat portion, and an inlet pipe for introduction of waste water containing second entrained solids into the settling tank and having a discharge outlet in proximity to the underside of the deflector dome and a nozzle facing downward. Influent waste water is directed vertically downward toward the flat portion and upward into the center of the fluid deflector which distributes the influent radially into contact, preferably turbulent, with previously introduced waste water containing first entrained solids to cause coalescence of the first and second entrained solids to form larger particles having increased settling velocity. 1. A method for static mixing in a waste water settling tank to increase the percentage of recovery of entrained solids from the waste water , comprising the steps of:a) providing a settling tank having a hopper bottom defining a sludge hopper;b) providing a fluid deflector disposed within the space contained in said hopper bottom;c) providing an inlet pipe for introduction of waste water into said settling tank, said inlet pipe having a first discharge outlet in proximity to the underside of said fluid deflector and a second discharge outlet in an exit region of said hopper bottom;d) providing an amount of waste water resident in said sludge hopper and containing first entrained solids;e) directing a first influent flow of said waste water upward against a surface of said fluid deflector and directing a second influent flow of said waste water downward into said exit region, wherein said first and second influent flows include second entrained solids; andf) mixing said first and second influent flows with said waste ...

Water softener water hardness automatic detection device

A water softener water hardness automatic detection device includes: a water input tube; a water output tube; a valve head, disposed in a water softener; a bypass valve, disposed in a water softener, and connected to the valve head through the water input tube and the water input tube; and a water hardness detection device, disposed on the water input tube, used to detect hardness of water. The water hardness detection device is a TDS (total dissolved solids) detection probe, extending into a tube chamber of the water input tube, and connected electrically to a display panel of the water softener through a controller. The valve head and the bypass valve are both connected electrically to the controller. The water softener water hardness automatic detection device is simple in construction, user may adjust parameters of water softener, to achieve the most of its functions.

Organic Soil Based Automated Growing Enclosure

An automated organic closed-loop grow enclosure that has rows of hydration trays that support removable (three across) grow containers for microgreens such as broccoli. Each grow container has a layer of soil. The seeds are treated with mycorrhizae and mixed with enriched top soil having a wicking agent. The grow containers are automatically watered once a day from the bottom and the capillary action of the soil lifts and holds the water in the grow container. LED Lighting is used to stimulate day and night cycles. The water is treated with magnets, turbulence and charcoal filters. The water cascades down the tiered trays using siphons. No other treatment of the water is necessary since almost no micro-organisms or organic material leak from the grow containers due to a filter barrier in the bottom of the grow container. Spectacular consistent growth rates are easily achieved.

Ultrapure water generation and verification system

An ultrapure water (UPW) generation and verification system can include a cleaning chemical station, a cleanup column, a conductivity verification station, and a holding reservoir, in fluid communication with one another. The cleaning chemical station can be configured to selectably permit a flow of water to pass therethrough to the cleanup column or to block the flow of water and instead deliver a cleaning chemical to the cleanup column. The conductivity verification station can be configured to selectably perform at least one of the following: permit water to flow from the cleanup column to the holding reservoir; direct fluid to waste; or test the conductivity of the water for a purity level.

Water Purification And Dispensing System And Method Of Operating Such System

The invention provides a water purification and dispensing system, preferably for producing ultrapure water and offering the purified water at dispensing sites. The system () comprises a first purification stage () for purifying water to a first water purity grade, a water recirculation loop () including a second purification stage () for purifying water to a second water purity grade higher than the first purity grade and a dispensing portion () for the purified water, and a reservoir () arranged to store the water purified at the first purification stage () through a first connecting flowpath () and to deliver the stored water to the water recirculation loop () through a second connecting flowpath (). A 3-way valve () is provided in the flowpath between the first purification stage () and the reservoir () to selectively block the flow of purified water to the reservoir () and to drain the purified water from the first purification stage (). A third connecting flowpath () is branched from said dispensing portion () and is connected to the first connecting flowpath () upstream of an UV radiation treatment device (). 2. The water purification and dispensing system according to claim 1 , wherein the second purification stage comprises at least a polishing filter device and a radiation treatment device for purifying the water.3. The water purification and dispensing system according to claim 2 , wherein the radiation treatment device is a radiation treatment device using a xenon dimer Xeto give stimulated main emission at 172 nm wavelength.4. The water purification and dispensing system according to claim 1 , wherein the UV radiation treatment device is an UV-C radiation treatment device.5. The water purification and dispensing system according to claim 4 , wherein the UV-C LED radiation treatment device is arranged to emit light in the wavelength range of 260-290 nm.6. The water purification and dispensing system according to claim 1 , further comprising a second ...

Circulation apparatus for agricultural and fishery production and irrigation

A circulation apparatus for agricultural and fishery production and irrigation is provided with a water supply device; a production device; a filter device; an irrigation device; a water storage device; and pipes for connecting the water supply device, the production device, the filter device, the irrigation device, and the water storage device together. The water filter device is filtered and sterilized, and outputs to the irrigation device to supply an irrigation water source for agricultural uses. Excess of the irrigation water source outputs to the water storage device for storage, and flows into the water supply device again or the irrigation device so as to make the irrigation water source to be continuously re-circulated and reused among the water supply device, the production device, the filter device, the irrigation device, and the water storage device.

Process of supplying water of controlled salinity

A process of producing an injection water stream of controlled salinity and controlled sulfate anion content that is suitable for injection into an oil bearing formation of an oil reservoir, the process comprising the steps of: (a) feeding a source water having a total dissolved solids content in the range of 20,000 to 45,000 ppm and a sulfate anion concentration in the range of 1,000 to 4,000 ppm, preferably, 1,500 ppm to 4,000 ppm to a desalination plant that comprises a plurality of reverse osmosis (RO) membrane units and a plurality of nanofiltration (NF) membrane units wherein the source water is pressurised to a pressure in the range of 350 to 1250 psi absolute, and dividing the source water to provide a feed water for the RO membrane units (hereinafter “RO feed water”) and a feed water for the NF membrane units (hereinafter “NF feed water”); (b) if necessary, increasing the pressure of the RO feed water to a value in the range of 900 to 1250 psi absolute before introducing the RO feed water to the RO membrane units and withdrawing an RO permeate and an RO retentate from the RO membrane units wherein the RO membrane units are operated in either a single-pass, single-stage mode or in a single-pass, two-stage mode and wherein the recovery of RO permeate is in the range of 35 to 75% by volume, preferably, 35 to 60% by volume based on the volume of the RO feed water that is fed to the RO membrane units such that the RO permeate has a total dissolved solids contents of less than 250 ppm, and a sulfate anion concentration of less than 3 ppm; (c) if necessary, reducing the pressure of the NF feed water to a value in the range of 350 to 450 psi absolute before introducing the NF feed water to the NF membrane units and withdrawing an NF permeate and an NF retentate from the NF membrane units wherein the NF membrane units are operated in a single-pass, single-stage mode and wherein the NF membrane units are operated with a recovery of NF permeate in the range of 35 to ...

Process For Generating Oxygenated Water

A method for increasing the quantity of dissolved oxygen in water includes addition of an oxidant to the water to increase the oxidation-reduction potential (ORP) of the water to between about 400 and 850 mV, followed by electrolysis to generate oxygen gas. The voltage applied to the electrolytic cells during electrolysis is less than 300 mV. The dissolved oxygen content of the water exiting the electrolytic cell is about 90% of saturation to super saturation.

Method and device for the hydrolysis of liquid, organic substrates

In a method for the hydrolysis of liquid, organic substrates (), the substrate to be hydrolysed is introduced into a circulation loop for heating, where an equal amount of hydrolysed substrate () is displaced from the circulation loop (). An appropriate system can have a circulation loop, a feed device, a circulation pump for generating a circulation flow in the circulation loop, and a heater for heating and reheating the circulation flow. 1. Method for a hydrolysis of liquid , organic substrates , wherein a substrate to be hydrolysed is introduced into a circulation loop for heating and wherein an equal amount of hydrolysed substrate is displaced from said circulation loop.2. Method according to claim 1 , wherein said introduced substrate is mixed with a chemical in order to change its pH value to increase an effect of said hydrolysis.3. Method according to claim 2 , wherein said introduced substrate is mixed with caustic solution in order to increase said pH value claim 2 , to increase an effect of said hydrolysis claim 2 , and to at least partially re-neutralize said caustic solution by means of organic acids released in said process.4. Method according to claim 1 , wherein a dwell time of said substrate in said circulation loop is increased by an additional volume in said circulation.5. Method according to claim 4 , wherein a volume flow of said circulation and a volume flow of a discharging substrate leave a volume in said circulation through different outlets.6. Method according to claim 4 , wherein said additional volume is formed by internal fittings so as to avoid a complete mixing claim 4 , where said discharging substrate has a different dwell time compared with a circulation flow.7. Method according to claim 6 , wherein said dwell time of said discharging volume flow of said substrate is greater than said dwell time of said circulation flow.8. Method according to claim 1 , wherein said substrate is fed into a circulation flow upstream of a heater.9. ...

Ecological biowater purification system

An ecological biowater purification system is provided, which includes a plurality water purification tanks connected to one another; each water purification tank includes a water inlet, a water outlet, a water purification device, a suction device, a first and a second backflow device. Particularly, the water purification device orderly includes a sedimentation pool, an anaerobic pool, an anoxic pool, a level-1 and a level-2 biological filter pool, which communicate with one another via baffle boards and communication holes; each suction device includes a plurality of suction nozzles and a suction pipe for discharging precipitates out of the water purification tank; the first backflow device is used to make some water in the level-2 biological filter pool flow back to the sedimentation pool, and the second backflow device is used to make some water in the level-1 and level-2 biological filter pool flow back to the anaerobic pool.

CLOSED LOOP MEMBRANE FILTRATION SYSTEM AND FILTRATION DEVICE

In a membrane filtration system and process, retentate exiting a filtration element is maintained inside a loop and redirected back to the inlet of a pump. The pump may produce a generally constant velocity in the loop. Water is concentrated inside the loop until discharged in batches. Feed water enters the loop automatically. The flux through the filtration element is maintained by a controlled valve or pump in communication with a permeate outlet. A filtration element has one or more rigid inserts in a housing. The inserts are covered with membranes. The element is configured to provide open feed channels beside the inserts. The membranes and inserts are potted at an edge, which may be their only attachment to the housing. Permeate flows between the membrane and the insert to the potted edge. The filtration element may be used in the system and process described herein or in others. 1. A filtration system comprising ,a pump having an inlet and an outlet;a pipe network including a loop extending from the outlet of the pump back to the inlet of the feed pump;a filtration element having a feed side of the filtration element located in the loop;an inlet to the loop located between the filtration element and the inlet of the feed pump; and,an outlet from the loop located between the outlet of the pump and the inlet to the loop.2. The filtration system of further comprising claim 1 ,a valve or a permeate pump in communication with a permeate side of the filtration element;a flow sensor in communication with the permeate side of the filtration element; and,a controller connected to the valve or the permeate pump and to the flow sensor;wherein the controller is configured to modulate the valve or the permeate pump so as to maintain a predetermined flow rate or flow rate range as measured by the flow sensor.3. The filtration system of further comprising a permeate pump in communication with a permeate side of the filtration element.4. The filtration system of further ...

Membrane, membrane contactor, apparatus and method for removal of dissolved oxygen from fluid

A hollow fiber membrane for removal of dissolved oxygen from fluid that is made of a porous hydrophobic material and an apparatus for controlling nitrate concentration level in water comprising a membrane contactor having the membrane, the membrane comprises at least one tubular fiber comprising: an outer wall for contacting fluid external to the tubular fiber; at least three inner channel walls for contacting fluid internal of the tubular fiber, wherein each inner channel wall forms a fluid communicating channel; a plurality of pores, wherein pores proximate to surfaces of the outer wall and each inner channel wall are smaller in size than pores non-proximate to said surfaces of the outer wall and each inner channel wall, wherein a central portion of the tubular fiber has a thickness greater than thickness of the tubular fiber outside the central portion.

Concentrating of wastewater to reduce flow rate, cost, and footprint of treatment system

A system to remove contaminants from contaminated water contains a pre-concentrating subsystem, a contaminant removal subsystem or a biological subsystem configured to remove two or more contaminants, and a permeate blending subsystem. A process for removing contaminants from contaminated water includes concentrating contaminated water, treating concentrated contaminated water, and combining product water to produce environmentally acceptable product water.

A WATER DISTRIBUTION SYSTEM WITH AUTOMATIC HOT WATER PASTEURIZATION PROCEDURE

The present invention describes a water distribution system comprising a water supply, a heating source , at least one temperature sensor, a flow path for water with a user outflow UO, and a control unit for operation of the water distribution system said temperature sensor being connected to the control unit, wherein the control unit also is connected to at least one presence sensor PS arranged for the detection of presence of a human or animal body in physical proximity to the user outflow UO and/or in an outflow direction area from the user outflow UO and wherein the control unit is arranged to drive a hot water pasteurization procedure of at least a portion of the flow path and out from the user outflow UO based on a response or an indication of no presence of a human or animal body in physical proximity to the user outflow UO and/or in an outflow direction area from the user outflow UO. 1. A water distribution system comprising a water supply , a heating source , at least one temperature sensor , a flow path for water with a user outflow , and a control unit for operation of the water distribution system , said temperature sensor being connected to the control unit , characterized by that the control unit also is connected to at least one presence sensor arranged for the detection of presence of a human or animal body in physical proximity to the user outflow and/or in an outflow direction area from the user outflow and wherein the control unit is arranged to drive a hot water pasteurization procedure of at least a portion of the flow path and out from the user outflow based on a response or an indication of no presence of a human or animal body in physical proximity to the user outflow and/or in an outflow direction area from the user outflow.2. The water distribution system according to claim 1 , wherein said at least one presence senor is a motion sensor claim 1 , an IR sensor claim 1 , a radar sensor or a combination thereof claim 1 , preferably a radar ...

WATER SOFTENING SYSTEM

Disclosed is a water softening system includes a first and a second filter unit that selectively performs any one of a removable mode discharging soft water including less ionic material than a source water, and a recycling mode of discharging reclaimed water including more ionic material than the source water, a first and a second supply passage that supplies the source water to the first and the second filter unit, a first and a second discharge passage that discharges the soft water or the reclaimed water from the first and the second filter unit, a first recovery passage part that guides at least a portion of the reclaimed water in the first discharge passage to the second supply passage, and a second recovery passage part that guides at least a portion of the reclaimed water in the second discharge passage to the first supply passage. 1. A water softening system comprising:a first filter unit and a second filter unit configured to selectively perform any one of a removable mode of removing at least a portion of an ionic material included in source water that is supplied, based on an electrical force, and discharging soft water including less ionic material than the source water, and a recycling mode of discharging the ionic material collected during the removal mode together with the supplied source water, and discharging reclaimed water including more ionic material than the source water;a first supply passage and a second supply passage configured to supply the source water to the first filter unit and the second filter unit respectively;a first discharge passage and a second discharge passage configured to discharge the soft water or the reclaimed water from the first filter unit and the second filter unit respectively;a first recovery passage part configured to guide at least a portion of the reclaimed water in the first discharge passage to the second supply passage; anda second recovery passage part configured to guide at least a portion of the reclaimed ...

DISPENSING SYSTEM WITH BYPASS

A chemical injection system connects a main water flow to a source of chemicals to a bypass chemical dispenser in a water treatment system. The chemical injection system includes a supply pipe, a return pipe having a bypass chemical dispenser located along a length thereof, and a controlled pumping system including a compounding-rate pump controller connected to a pumping loop. 1. A chemical injection system connecting a main water flow to a source of chemicals to a bypass chemical dispenser in a water treatment system , the chemical injection system comprising:a supply pipe;a return pipe having a bypass chemical dispenser located along a length thereof; anda controlled pumping system including a compounding-rate pump controller connected to a pumping loop.2. The chemical injection system according to claim 1 , wherein the pumping loop includes a feed pump claim 1 , a bypass circuit claim 1 , in which a flow rate in the bypass circuit is controlled by a bypass valve claim 1 , and a feed control needle valve.3. The chemical injection system according to claim 2 , wherein the feed pump includes a solenoid pump claim 2 , a centrifugal pump claim 2 , or a positive displacement pump.4. The chemical injection system according to claim 1 , further including a first flow circuit between the bypass chemical dispenser and the remote water pipeline and a second flow circuit appurtenant to the first flow circuit claim 1 , wherein a pump is installed within the second flow circuit.5. The chemical injection system according to claim 1 , wherein the pumping loop includes a feed pump claim 1 , a bypass circuit claim 1 , in which a flow rate in the bypass circuit is controlled by a bypass valve claim 1 , and a feed control needle valve claim 1 , and the feed control needle valve is installed after the feed pump and within the second flow circuit to change flow rate within the first flow circuit.6. The chemical injection system according to claim 1 , further including a flow sensor ...

Water treatment method and water treatment apparatus

A water treatment method treats raw water (water to be treated) containing organic wastewater. The method includes (i) an aeration process performs an initial absorption treatment by aerating the water to be treated, (ii) a filtration process for filtering the water to be treated which has been treated by the initial absorption treatment in the aeration process, (iii) a digestion treatment process for digesting solids captured by the filtration process, (iv) a biological treatment process for denitrifying, with activated sludge, filtered water obtained through the filtration process, (v) a sludge transfer process for sending the activated sludge from the biological treatment process to the aeration process, and (vi) an adjustment process for adjusting an amount of the activated sludge sent to the aeration process via the sludge transfer process based on a nitrogen concentration of treated water which has been biologically treated by the biological treatment process.

Side Stream Treatment for Overflow

A system and method of treating wastewater. In one embodiment, the system comprises a biological reactor fluidly connected to a source of wastewater and having a treated wastewater outlet, a fixed film biological reactor connected to the source of wastewater and having a fixed film effluent outlet, and a ballasted system fluidly connected to the fixed film effluent outlet. The ballasted system may comprise a ballast reactor tank configured to provide a ballasted effluent, and a source of ballast material fluidly connected to an inlet of the ballast reactor tank. The system may further comprise a bypass line having an inlet fluidly connected to the source of wastewater, a first outlet fluidly connected to the ballasted system, and a second outlet fluidly connected to the fixed film biological reactor, the bypass line configured to bypass the fixed film biological reactor. 1. A system for treating wastewater , comprising:a biological reactor fluidly connected to a source of wastewater and having a treated wastewater outlet;a fixed film biological reactor connected to the source of wastewater and having a fixed film effluent outlet; a ballast reactor tank configured to provide a ballasted effluent; and', 'a source of ballast material fluidly connected to an inlet of the ballast reactor tank; and, 'a ballasted system fluidly connected to the fixed film effluent outlet, the ballasted system comprisinga bypass line having an inlet fluidly connected to the source of wastewater, a first outlet fluidly connected to the ballasted system, and a second outlet fluidly connected to the fixed film biological reactor, the bypass line configured to bypass the fixed film biological reactor.2. The system of claim 1 , wherein the ballast material is magnetic.3. The system of claim 2 , wherein the ballast material is magnetite.4. The system of claim 1 , further comprising a source of flocculant fluidly connected to an inlet of the ballast reactor tank.5. The system of claim 1 , further ...

SCREW TYPE SEPARATION DEVICE AND WASTEWATER TREATMENT SYSTEM

A screw type separation device includes: a casing that has a separated liquid discharge port on one end part side and has an object discharge port on the other end part side, while the other end part side is positioned lower, in terms of vertical directions, than the one end part side; a screw shaft provided inside the casing; a first screw blade; and a second screw blade that forms a first space between one face and the first screw blade facing the one face and forms a second space between the other face and the first screw blade facing the other face. 1. A screw type separation device comprising:a casing that has a tubular shape and has, on one end part side, a separated liquid discharge port used for discharging separated liquid that has been separated from an object by dehydration and has, on an other end part side, an object discharge port used for discharging the object that has been dehydrated, while the other end part side is positioned lower, in terms of vertical directions, than the one end part side;a screw shaft provided inside the casing and extending along an extending direction that is a direction from the one end part to the other end part;a first screw blade spirally extending on an outer circumferential surface of the screw shaft; anda second screw blade that spirally extends on the outer circumferential surface of the screw shaft while being positioned apart, in the extending direction, from the first screw blade by a predetermined interval, forms a first space between one of two faces thereof facing the first screw blade and the first screw blade facing the one face, and forms a second space between other of the two faces and the first screw blade facing the other face, whereinthe object input to the first space in the casing is moved to the other end part side within the first space and dehydrated by gravity, so that the dehydrated object is discharged through the object discharge port, and the separated liquid occurring from the dehydration is ...

Apparatus and Method for Separation of Oil From Oil-Containing Produced Water

A process for separation of oil from oil-containing produced water as well as an apparatus for separation of oil from oil-containing produced water. A perforated baffle plate is arranged in a separator tank to provide for equalizing of the downwardly flow rate of produced water. The insertion of such baffle plates has shown that less oil is following the stream downward. 1. A method of separating oil from oil-containing produced water , the method comprising:mixing an oil-containing produced water with a gas-containing component to form a mixture;feeding the mixture into a tank along an axis thereof;spreading the mixture into the tank radially outward;passing the mixture axially through a perforated baffle plate in the tank;separating gas with adherent oil droplets and oil from the mixture;allowing the oil and the gas with adherent oil droplets to rise to an outlet at the top of the tank and discharge from the tank; andconveying cleaned produced water to an outlet at the bottom of the tank.2. The method of claim 1 , further comprising:supplying the oil-containing produced water into the tank through an inlet; andspreading the mixture into the tank using a nozzle extending from the inlet.3. The method of claim 2 , wherein the perforated baffle plate is mounted below the nozzle within the tank.4. The method of claim 1 , wherein the perforated baffle plate has openings claim 1 , and wherein a total area of the openings is at least 15% of the area of the perforated baffle plate.5. The method of claim 1 , wherein the perforated baffle plate extends horizontally a cross the tank.6. The method of claim 1 , further comprising flowing the mixture along a sidewall of the tank.7. The method of claim 6 , wherein flowing the mixture along the sidewall of the tank comprises flowing the mixture on a guide vane extending radially inward from the sidewall and between the sidewall and a shroud disposed radially inward from the sidewall.8. The method of claim 7 , further comprising ...

DEVICE AND METHOD FOR PURIFYING AND RECYCLING SHOWER WATER

The present invention describes a hybrid device () for a recirculation shower, allowing purification and either recycling of water or discarding of water, wherein said hybrid device () comprises a recirculation loop (), a filter system () with a nano-filter () such as for instance an electropositive nano-ceramic filter, e.g. a nano alumina (fiber) filter, at least one filter quality sensor (), at least one pre-filter (), and wherein the hybrid device () is arranged to redirect the water from recirculation to drainage when the at least one filter quality sensor () indicates the need thereof. 1. A hybrid device , which is a shower that is adapted to function both as a recirculation shower and as an ordinary shower , and allows purification and either recycling of water or discarding of water , wherein said hybrid device comprises a recirculation loop which facilitates recirculation of water within said hybrid device , and also comprises:a filter system with a nano-filter and at least one filter quality sensor, and at least one pre-filter, the pre-filter being positioned before the nano-filter in process terms, and the filter quality sensor being adapted to indicate that the filter system is operating as desired;at least one water quality sensor,a modified drain, which is adapted to collect the water used and to facilitate the stream of water used towards the recycling loop and filter system, so that water can be purified and recirculated, or towards drainage; wherein the hybrid device is arranged so that:it can operate in a recirculation mode providing purification and recirculation of water, until the water passing through said hybrid device is at a pre-determined maximum level of contaminants;when any of said sensors is indicating the need to do so, and in particular when the at least one water quality sensor indicates that the water is contaminated above said pre-determined maximum level of contaminants, the same water is redirected from recirculation to drainage ...

Electrocoagulation System and Method Using Plasma Discharge

An apparatus, system and method for clarifying wastewater using electrocoagulation with plasma discharge is provided. The apparatus includes a reactor with a hollow interior accommodating a volume of wastewater for treatment, and electrodes contacting or at least partially submerged in the wastewater. Electrical energy is supplied to the electrodes, such as three-phase AC power, of sufficient levels to generate plasma discharge from the electrodes and within the wastewater. Electrocoagulation occurs concurrent with the plasma discharge. A system including at least one reactor is a flow-through system, and may have a recirculation loop for recirculating wastewater for additional passes of treatment. A pump(s) and series of valves control the movement of wastewater through the system, and a control panel may be included to direct the operation of various components of the system. The control panel may also include a user interface for information display, input by an operator, and automation. 1. An apparatus for treating fluid , comprising:a reactor having an interior space to receive and retain said fluid; anda plurality of plasma producing electrodes extending into said interior space of said reactor, at least a portion of said plurality of electrodes contacting said fluid and generating plasma discharge in said fluid when energy is applied thereto, and at least a portion of said plurality of electrodes contacting said fluid and electrochemically reacting with said fluid when energy is applied thereto for electrocoagulation of said fluid.2. The apparatus as recited in claim 1 , wherein at least a portion of each of said plurality of plasma producing electrodes has an elongate portion disposed parallel to said elongate portion of other ones of said plurality of electrodes.3. The apparatus as recited in claim 1 , wherein said plurality of plasma producing electrodes includes a number of electrodes in multiples of three.4. The apparatus as recited in claim 1 , wherein ...

APPARATUS FOR EVAPORATIVE CONCENTRATION OF WATER TO BE TREATED, WHICH USES HOT LIME SOFTENING, AND METHOD FOR EVAPORATIVE CONCENTRATION OF WATER USING THE SAME

An apparatus for evaporative concentration of water, containing hardness-causing substances, to be treated using hot lime softening, includes: a first evaporator configured to form first concentrated water from the water to be treated by evaporatively concentrating the water by first heat exchange with hot steam; a hot lime softener configured to precipitate and to separate hardness-causing substances contained in the first concentrated water from at least a portion of the first concentrated water from the first evaporator by reaction with lime and configured to remove the hardness-causing substances from the first concentrated water; and a second evaporator configured to form second concentrated water by further evaporatively concentrating at least a portion of the first concentrated water that passed through the hot lime softener by second heat exchange with hot steam. 1. An apparatus for evaporative concentration of water , containing hardness-causing substances , to be treated using hot lime softening , the apparatus comprising:a first evaporator configured to form first concentrated water from the water to be treated by evaporatively concentrating the water by first heat exchange with hot steam;a hot lime softener configured to precipitate and to separate hardness-causing substances contained in the first concentrated water from at least a portion of the first concentrated water from the first evaporator by reaction with lime and configured to remove the hardness-causing substances from the first concentrated water; anda second evaporator configured to form second concentrated water by further evaporatively concentrating at least a portion of the first concentrated water that passed through the hot lime softener by second heat exchange with hot steam.2. The apparatus of claim 1 , wherein a temperature of the first concentrated water that is introduced into the hot lime softener is approximately 90° C. to 110° C.3. The apparatus of claim 1 , wherein the first ...

Water Recirculating System for Power Sluices

A water recirculating system for power sluices includes a first filtration unit, a second filtration unit, and a third filtration unit. Each filtration unit is equipped with a debris catcher and a filter that to clean the dirty water that discharges from the power sluices. A tailings catcher is integrated into the first filtration unit to receives the dirty water that discharges from the power sluices as the first stage of filtration. Then, the debris catchers and the filters clean the dirty water as the first filtration unit is in fluid communication with the second filtration unit, and the second filtration unit is in fluid communication with the third filtration unit. Resulting clean water that enters into the third filtration unit is then pumped back into the power sluices thus allowing a quantity of water to recirculate through the power sluices.

RAPID ENZYME ACTIVITY MEASUREMENT SYSTEM AND METHOD

An autonomous and independent biofouling detecting system for detecting biofouling associated with a plant membrane based on a test membrane. The biofouling detecting system includes the test membrane, which shares a feed with the plant membrane; a molecule detecting sensor that detects a presence of a molecule associated with biofouling of the test membrane; and a global controller that controls a flow of the feed through the test membrane and determines when the test membrane needs cleaning.

Continuous Dewatering Recirculation System with Integral Coal Combustion Residual High Flow Plate Separator

The system for a continuous dewatering recirculating for removing particulate such as coal combustion residue from a water stream. The system includes multiple dewatering and recirculation containers, each having a submerged flight conveyor and lamella settlings plate located therein, at least one dewatering and recirculation container receives ash water stream overflow.

SEALING STRUCTURE AND FLUID TREATMENT UNIT

A fluid treatment unit and a sealing structure which is preferably for the fluid treatment unit are provided. The sealing structure includes: a cylinder with an opening formed at one end thereof, the cylinder comprising an inner wall surface and an outer wall surface, and an outer thread being provided on the outer wall surface; a sealing cover which is capable of hermetically cooperating with the inner wall surface of the cylinder to seal the opening; a support cover which is capable of being connected with the cylinder by thread engagement; when the support cover and the cylinder are relatively rotated in order to achieve a threaded connection of the support cover and the cylinder, the support cover is capable of supporting the sealing cover and impelling it to move in parallel so as to allow the sealing cover to reach a position at which it seals the opening. 1. A fluid treatment unit comprising a chamber accommodating a fluid treatment medium , the chamber being defined by a cylindrical outer cylinder , two ends thereof respectively forming an inlet and an outlet of the chamber , wherein a guide plate is formed within the chamber , an extension direction of the guide plate being not parallel to an axis of the cylindrical outer cylinder , so that the fluid is guided to flow along a direction oblique relative to the axis.2. The fluid treatment unit according to claim 1 , wherein the fluid treatment unit further comprises a cylindrical inner cylinder provided inside of the outer cylinder and coaxial therewith claim 1 , thereby forming an annular space between the inner cylinder and the outer cylinder claim 1 , wherein the guide plate is located within the annular space.3. The fluid treatment unit according to claim 2 , wherein the guide plate extends in a spiral direction or an oblique direction around a central axis of the cylindrical outer cylinder.4. The fluid treatment unit according to claim 3 , wherein a plurality of guide plates are formed within the chamber ...

WASTEWATER TREATMENT SYSTEMS AND METHODS

A wastewater treatment system includes a circulating fluidized bed evaporator defining a longitudinal axis vertical with respect to gravity. The evaporator has a wastewater inlet to provide wastewater to the circulating fluidized bed evaporator. A heat inlet is axially below the wastewater inlet to provide heat to the circulating fluidized bed evaporator for evaporating the wastewater. An outlet is axially above the wastewater inlet and the heat inlet. 1. A method for treating wastewater comprising:providing heat to a circulating fluidized bed evaporator;injecting a fluid stream of wastewater into the evaporator, wherein the heat evaporates liquid from wastewater producing a gas and/or particulate effluent; andpassing the gas and/or particulate effluent through a particulate collection device to separate the gas effluent from the particulate effluent.2. A method as recited in claim 1 , further comprising returning the effluent to a gas path of a steam generating electrical power plant upstream from a plant particulate collection device.3. A method as recited in claim 1 , further comprising recycling at least a portion of the particulate effluent back to the evaporator to improve mass and heat transfer characteristics within the circulating fluidized bed evaporator.4. A method as recited in claim 1 , further comprising removing at least a portion of the particulate effluent from the wastewater treatment system downstream of the particulate collection device for disposal.5. A method as recited in claim 1 , wherein providing the heat to the evaporator includes drawing a flue gas slip stream from a gas path of a steam generating electrical power plant and injecting it into the evaporator.6. A method as recited in claim 5 , wherein a flue gas temperature at a heat inlet of the evaporator ranges from 450° F. to 800° F.7. A method as recited in claim 1 , wherein a temperature of the gas effluent at an outlet of the evaporator ranges from an acid gas dew point to 400° F.8. ...

WASTEWATER TREATMENT DEVICE AND WASTEWATER TREATMENT METHOD

A wastewater treatment device has: an ozone generator which supplies ozone; a mixer which mixes ozone supplied from the ozone generator with wastewater and supplies ozone mixed wastewater; an ozone oxidation unit which progresses ozone oxidation in the ozone mixed wastewater while passing the ozone mixed wastewater therethrough and discharges wastewater in which the ozone has been consumed; a biological treatment unit which performs biological treatment on the wastewater discharged from the ozone oxidation unit using microorganisms; and an adjusting device which adjusts the amount of ozone to be mixed with the wastewater by the mixer so that ozone in an amount that inhibits the microorganisms of the biological treatment unit does not remain in the wastewater discharged from the ozone oxidation unit. 1. A wastewater treatment device , comprising:an ozone generator which supplies ozone;a mixer which mixes ozone supplied from the ozone generator with wastewater and supplies ozone mixed wastewater;an ozone oxidation unit which progresses ozone oxidation in the ozone mixed wastewater while passing the ozone mixed wastewater therethrough and discharges wastewater in which the ozone has been consumed;a biological treatment unit which has microorganisms for biological treatment and performs the biological treatment on the wastewater discharged from the ozone oxidation unit using the microorganisms; andan adjusting device which adjusts the amount of ozone to be mixed with the wastewater by the mixer so that ozone in an amount that inhibits the microorganisms of the biological treatment unit does not remain in the wastewater discharged from the ozone oxidation unit.2. The wastewater treatment device according to claim 1 , wherein the adjusting device includes:a measuring device which measures the amount of ozone in the wastewater discharged from the ozone oxidation unit; anda regulating valve capable of regulating the amount of ozone to be mixed with the wastewater by the ...

High Recovery Desalination and Mineral Production System and Method

A system and method for increasing the water production efficiency of a desalination plant and producing concentrated calcium and magnesium is provided. A saline source water is preferably subjected to a first treatment such a passage through a first desalination unit, followed by dual treatment of the first treatment reject stream using physicochemical adsorption and electrodialysis to remove scale-forming calcium and magnesium. The reject stream from the dual treatment may then be received by a second desalination unit. Due to the removal of the majority of the saline source water's scale-forming minerals, the second desalination unit may be operated at higher operating limits than in conventional desalination units without significant concern for fouling due to scaling. The approach of the present system and method efficiently increases the fresh water production ratio from the source saline water while generating commercially attractive concentrated calcium and magnesium products.

Process for the work-up and reuse of salt-containing process water

A process for the work-up of salt-containing process water which contains an alkali metal chloride as salt in a concentration of at least 4% by weight and organic or inorganic and organic impurities from chemical production processes and reuse of the salt by a combination of prepurification and concentration, crystallization and purification of the salt and optionally subsequently use of the salt in an electrolysis for producing basic chemicals are described.

ION REMOVAL SYSTEM

An ion removal system includes: an electrolysis device configured to generate alkaline water and acid water by electrolysis; a hard water flow path connected to the electrolysis device to supply the electrolysis device with hard water; a batch treatment tank provided in the hard water flow path to store the hard water; a return flow path connected to the batch treatment tank to return the alkaline water or the acid water generated by the electrolysis device to the batch treatment tank; and a fine bubble generation device configured to generate fine bubbles in a circulation flow path including the batch treatment tank, the electrolysis device, and the return flow path, the fine bubble generation device being configured to adsorb and remove metal ions in water by the fine bubbles generated. 1. An ion removal system comprising:an electrolysis device configured to generate alkaline water and acid water by electrolysis;a hard water flow path connected to the electrolysis device to supply the electrolysis device with hard water;a batch treatment tank provided in the hard water flow path to store the hard water;a return flow path connected to the batch treatment tank to return the alkaline water or the acid water generated by the electrolysis device to the batch treatment tank; anda fine bubble generation device configured to generate fine bubbles in a circulation flow path including the batch treatment tank, the electrolysis device, and the return flow path, the fine bubble generation device being configured to adsorb and remove metal ions in water by the fine bubbles generated.2. The ion removal system according to claim 1 , further comprising a first flow path and a second flow path through which the alkaline water and the acid water generated by the electrolysis device can alternately flow claim 1 , whereinthe return flow path includes a first return flow path connected from the first flow path to the batch treatment tank, and a second return flow path connected from ...

SYSTEM AND METHOD FOR WASTE TREATMENT

Systems and methods for treating multi-component waste streams. In general, systems and methods described herein employ a first chamber and a second chamber separated by a barrier and a filtration component that is fluidically connected to the first and second chambers. A waste stream to be treated will flow into the first chamber for treatment of the carbon-containing waste, then into the filtration component for the separation of the stream into a solid waste fraction and a liquid waste fraction. 1. A system for treatment of a waste stream , the system comprising:a first chamber to receive a waste stream comprising at least a first substance and a second substance;a second chamber;a semipermeable barrier disposed between the first chamber and the second chamber allowing at least the first substance to pass between the first and second chamber while prohibiting passage of the second substance; anda mechanical filter fluidically connected between the first chamber and the second chamber for separating materials suitable for treatment in the first chamber but not the second chamber from material to be treated in the second chamber.2. The system of claim 1 , wherein the first chamber is an anaerobic digestion chamber.3. The system of claim 1 , wherein the second chamber is an aerobic nitrification reactor.4. The system of claim 1 , wherein the mechanical filter separates solid materials from the waste stream.5. The system of claim 1 , wherein the semipermeable barrier is an ion-exchange membrane.6. The system of claim 5 , wherein the ion-exchange membrane is an anion exchange membrane.7. The system of claim 1 , wherein the waste water is aquacultural waste water.8. A system for the combined treatment of a waste stream claim 1 , wherein two or more substances are treated in substantially different treatment environments claim 1 , comprising:a first chamber and a second chamber;a semipermeable barrier disposed between the first chamber and the second chamber allowing at ...