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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 22802. Отображено 100.
27-01-2017 дата публикации

Комбинированная установка для переработки и последующей утилизации осадков, образующихся от очистки сточных вод на цбп производствах

Номер: RU0000168298U1
Автор: Марина Геннадьевна Трейман
Принадлежит: Марина Геннадьевна Трейман

Комбинированная установка применяется для переработки и последующей утилизации осадков, образующихся от биологической и механической очистки сточных вод на целлюлозно-бумажном производстве.Установка для переработки и утилизации осадков сточных вод представляет собой последовательно расположенные блоки сушки, магнитной и реагентной обработки, разделенные между собой функциональными перегородками. Каждый из блоков имеет свое технологическое назначение: в блоке сушки осуществляется процесс выведения воды из состава отхода, затем в блоке магнитной обработки происходит выделение из составной консистенции тяжелых металлов, после чего вещество поступает в блок реагентной обработки, где происходит разделение шлама на известковую и органическую составляющую.Технологической особенностью установки для переработки и утилизации осадков сточных вод является то, что она снабжена функциональными решетчатыми перегородками, отверстия которых регулируются по диаметру в соответствии с необходимостью технологических процессов сушки, просеивания, магнитной и реагентной обработки. Известь может быть в дальнейшем применена для известкования закисленных почв или в строительстве, органика может быть использована как удобрение в сельскохозяйственных целях. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 168 298 U1 (51) МПК C02F 11/00 (2006.01) C02F 11/12 (2006.01) C02F 11/14 (2006.01) C05F 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2016109330, 15.03.2016 (24) Дата начала отсчета срока действия патента: 15.03.2016 (72) Автор(ы): Трейман Марина Геннадьевна (RU) (73) Патентообладатель(и): Трейман Марина Геннадьевна (RU) R U Дата регистрации: 27.01.2017 Приоритет(ы): (22) Дата подачи заявки: 15.03.2016 Адрес для переписки: 195276, Санкт-Петербург, Суздальский пр-кт, 63, корп. 3, кв. 110, Трейман Марине Геннадьевне 1 6 8 2 9 8 R U (57) Формула полезной модели 1. Комбинированная установка для переработки и ...

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Номер записи: 1
12-11-2021 дата публикации

Устройство переработки пивной дробины в биогаз

Номер: RU0000207707U1
Автор: Борис Николаевич Федоренко, Владимир Владимирович Житков
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный университет пищевых производств"

Полезная модель относится к пищевой промышленности, биотехнологии и биоэнергетике, а именно к созданию усовершенствованного реактора переработки биомассы. Предложено устройство переработки отхода пивоваренного производства - пивной дробины в газообразное углеводородное топливо - биогаз. Полезная модель предусматривает создание реактора (ферментера) переработки дробины методом метанового брожения и оборудованного системой излучателей ультразвуковых волн для периодической ультразвуковой обработки субстрата пивной дробины с целью интенсификации процесса анаэробной переработки дробины микроорганизмами. Технический результат достигается оборудованием биореактора (ферментера) каскадом из системы ультразвуковых излучателей. Система размещения ультразвуковых излучателей на стенках внутренней поверхности ферментера представляет собой нисходящую спираль (рис 1), что позволяет при перемешивании субстрата пивной дробины, помещенного в ферментер, осуществлять наиболее полное и интенсивное воздействие энергией ультразвукового гидродинамического излучателя на весь объем обрабатываемого субстрата. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 207 707 U1 (51) МПК C12M 1/02 (2006.01) C12M 1/107 (2006.01) C12M 1/42 (2006.01) C02F 11/04 (2006.01) C12F 3/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК C12M 1/02 (2021.08); C12M 1/107 (2021.08); C12M 1/42 (2021.08); C02F 11/04 (2021.08); C12F 3/06 (2021.08) (21)(22) Заявка: 2021107419, 22.03.2021 22.03.2021 12.11.2021 Приоритет(ы): (22) Дата подачи заявки: 22.03.2021 (45) Опубликовано: 12.11.2021 Бюл. № 32 2 0 7 7 0 7 R U (54) УСТРОЙСТВО ПЕРЕРАБОТКИ ПИВНОЙ ДРОБИНЫ В БИОГАЗ (57) Реферат: Полезная модель относится к пищевой анаэробной переработки дробины промышленности, биотехнологии и микроорганизмами. Технический результат биоэнергетике, а именно к созданию достигается оборудованием биореактора усовершенствованного реактора переработки (ферментера) каскадом из системы биомассы. ...

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Номер записи: 2
02-02-2012 дата публикации

Method for treating a substance with wave energy from plasma and an electrical arc

Номер: US20120024718A1
Автор: Todd Foret
Принадлежит: Foret Plasma Labs LLC

An apparatus for synergistically combining a plasma with a comminution means such as a fluid kinetic energy mill (jet mill), preferably in a single reactor and/or in a single process step is provided by the present invention. Within the apparatus of the invention potential energy is converted into kinetic energy and subsequently into angular momentum by means of wave energy, for comminuting, reacting and separation of feed materials. Methods of use of the apparatus in the practice of various processes are also provided by the present invention.

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Номер записи: 3
09-02-2012 дата публикации

Stabilization of biosolids using iron nanoparticles

Номер: US20120034286A1
Автор: Wei-xian Zhang
Принадлежит: Lehigh University

This invention discloses a stabilized biosolids composition and a method for the stabilization of biosolids. It entails the use of a chemically and biologically reactive material, in the form of ultrafine iron particles. The nanometer-sized iron particles are capable of degrading odorous organosulfur compounds, transforming persistent and toxic organic pollutants such as PCBs and chlorinated pesticides, inhibiting the growth of pathogens by increasing pH and maintaining the increased pH of the stabilized biosolids, immobilizing toxic metal ions such as mercury and lead, and improving the overall quality of biosolids for land application and plant growth.

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Номер записи: 4
15-03-2012 дата публикации

System Setup For Biological Methane Potential Test

Номер: US20120064565A1
Автор: Jing Liu
Принадлежит: Bioprocess Control Sweden AB

A system setup is disclosed for carrying out a biological methane potential test on a biosample and a system setup is disclosed for measuring biomethane gas in a biogas flow. In at least one embodiment, the system setups include at least one container for chemical irreversible fixation of other gases than biomethane gas, the other gases including at least CO 2 , and at least one gas flow measuring device.

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Номер записи: 5
31-05-2012 дата публикации

Method for producing biogas or sewage gas

Номер: US20120135491A1
Автор: Lothar Guenter
Принадлежит: DGE Dr Ing Guenther Engineering GmbH

The invention relates to a method for producing biogas or sewage gas by a multi-stage anaerobic reaction of biomass and/or sludge. Considering the disadvantages of the known prior art, a method is to be provided that leads to a higher yield of raw gas or biogas and a higher content of methane in the raw gas and enables an economically improved operating method. To this end, the reaction is carried out in the first fermentation stage (F 1 ) while maintaining a TS content of 3 to 8% and a volume load of 1 to 3 kg OTS/m 3 d. In the second fermentation stage (F 2 ), a further reaction of the solid matter phase is carried out while maintaining a TS content of 8 to 40% and a volume load of over 2 kg OTS/ m 3 d. In the second fermentation stage, the fermentation substrate is set to a TS content that is higher than the TS content of the first stage. In both fermentation stages, the reaction is carried out in the range from slightly acidic to neutral (pH value 6.5 to 8). The biogas obtained in the fermentation stages (F 1, F 2 ) is combined or removed separately and is subjected to further purification.

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Номер записи: 6
02-08-2012 дата публикации

Method and system for treating sewage sludge

Номер: US20120196240A1
Автор: Felix Kirzhner, Genady Borodyanski, Tomer Zimmels, Yoram Zimmels
Принадлежит: Technion Research and Development Foundation Ltd

A method and system for treating sewage sludge are described herein. A carbonaceous fuel is mixed with sewage sludge, the mixture is then gasified, and the obtained gas is combusted. The method and system may utilize wet sewage sludge.

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Номер записи: 7
18-10-2012 дата публикации

Methods and apparatus for struvite recovery using upstream phosphate injection

Номер: US20120261338A1
Автор: Matt Kuzma, Ram Prasad Melahalli Sathyanarayana, Robert James Baur
Принадлежит: Ostara Nutrient Recovery Technologies Inc

Formation of scale in a wastewater treatment system upstream of a struvite precipitation reactor is inhibited by injection of one or more of CO 2 and H 3 PO 4 . The injection may be performed at multiple locations. Injection may be controlled based on one or more of pH, fluid flow and fluid pressure. Scale may be inhibited while maintaining production of precipitated struvite.

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Номер записи: 8
31-01-2013 дата публикации

Method for treating organic waste and method and apparatus for producing solid fuel/compost using zero discharge ace system

Номер: US20130026760A1
Автор: Eun Min Cho, Haeng Seog Lee, Han Jun Lee
Принадлежит: NEW AND RENEWABLE ENERGY CO Ltd

The present invention relates to a method and apparatus for treating organic waste and producing solid fuel or compost from the treated organic waste.

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Номер записи: 9
21-02-2013 дата публикации

Process for Drying Oil Sand Mature Fine Tailings

Номер: US20130043165A1
Автор: Adrian Revington, Marvin Harvey Weiss, Patrick Wells, Thomas Hann
Принадлежит: Suncor Energy Inc

A process for drying fine tailings is provided. The process, which may use a pipeline reactor system, comprises providing an in-line flow of the fine tailings; continuously introducing a flocculent solution to cause dispersion and commence flocculation of the fine tailings and may comprise rapid turbulent mixing; subjecting the fine tailings to flocculation and water release conditioning in-line to cause formation and rearrangement of floes and increasing the yield shear stress to form flocculated fine tailings while avoiding over-shearing of the flocs; and depositing the fine tailings to allow the release of water, formation of a non-flowing fine tailings deposit and drying of the non-flowing fine tailings deposit. The process enables effective in-line dispersion, flocculation and water release, resulting in reliable deposition and drying of the fine tailings deposit.

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Номер записи: 10
25-04-2013 дата публикации

APPARATUS AND A METHOD FOR THE DEHYDRATATION TREATMENT OF WASTE SLUDGE

Номер: US20130098765A1
Автор: Altieri Domenico, Ferrari Gian Carlo, Stradi Aristide
Принадлежит: FERBUR LIMITED

An apparatus for treating waste sludge includes an outer container casing, internally hollow, an inner body coaxial with the outer casing, a compacting and dehydrating chamber, inside the outer container casing and along which sludge to be treated runs, an inlet zone for supplying sludge to the chamber, an outlet zone for unloading treated sludge, movement elements for the sludge, cooperating with the inner body, which promote compaction and advancement of the sludge from the inlet zone to the outlet zone; a container net connected to a negative pole of a control unit to form a cathode, and the inner body connected to a positive pole to form an anode. A method of treating sludge includes the promoting the continuous advancement and compaction of sludge inside a compression chamber between the anode and cathode, and establishing a difference in potential in order to subject the sludge to an electrical field. 12324254673561024113. An apparatus for treating waste sludge , characterised in that it comprises an entirely-hollow outer container casing () , an inner body () which is coaxial to the external casing () , a compacting and dehydrating chamber () , internal of the outer container casing () and along which the sludge to be treated runs , an inlet zone () for supplying the sludge to be treated to the chamber () , an outlet zone () for unloading the treated sludge , movement means () of the sludge , cooperating with the inner body () , which cause advancement , mixing and compacting of the sludge from the inlet zone () to the outlet zone (); filter means () being predisposed internally of the casing () for delimiting the compacting and dehydrating chamber () and being provided with at least a container net () which is connected to a negative pole of a control unit in order to define a cathode and at least the inner body () being connected to a positive pole of a control unit in order to define an anode; a potential difference being established between the anode and ...

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Номер записи: 11
16-05-2013 дата публикации

Method and System for Stabilizing Volatile Radionuclides During Denitration at High Temperatures

Номер: US20130123564A1
Автор: J. Bradley Mason
Принадлежит: Individual

Providing a method for eliminating NO x from an input waste form, including waste forms with volatile elements. The method includes adding the input waste form, reducing additives, a fluidizing gas, and mineralizing additives to a fluidized bed reactor. The reactor includes multiple portions and at least one portion is operated in a reducing atmosphere. The bed is operated at temperatures greater than 800° C.

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Номер записи: 12
23-05-2013 дата публикации

SYSTEM AND METHOD OF SEPARATING PRODUCT FROM SLUDGE IN STORAGE TANKS

Номер: US20130126439A1
Автор: Berman Daniel, Ezair Yehezkel Samy
Принадлежит:

A system and method of removing product from sludge at a bottom of a storage tank that includes introducing a liquid to the tank, heating and agitating the liquid to separate the product from the sludge, and then removing the separated product and removing the introduced liquid. 1. A method for separating a substance from sludge collected in a tank during a period of storage of said substance in said tank , comprising:adding a liquid to said tank, said tank suitable to store said substance;agitating said liquid in said tank, said liquid agitated above a level of said sludge collected in said tank during said storage of said substance in said tank;heating said liquid to a pre-defined temperature; andremoving from said tank said substance separated from said sludge.2. The method as in claim 1 , wherein said adding comprises pumping said liquid into said tank for a period exceeding 24 hours.3. The method as in claim 1 , wherein said agitating comprises establishing a rotational movement of said liquid in said tank.4. The method as in claim 3 , wherein said adding comprises adding said liquid in a direction of said rotational movement.5. The method as in claim 1 , wherein said pre-defined temperature is between 70 and 140 degrees Celsius.6. The method as in claim 1 , wherein said removing comprises removing said substance suspended above said liquid claim 1 , said liquid suspended above said sludge.7. The method as in claim 1 , wherein said adding comprises adding said liquid comprising water and orthosilicic acid.8. The method as in claim 1 , comprising removing said liquid from said tank and introducing said liquid into another tank claim 1 , while retaining said pre-defined temperature of said liquid.9. The method as in claim 1 , wherein said adding comprises adding a volume of said liquid as is sufficient to raise a level of said substance to a pre-defined level.10. A system for separating a substance from sludge in a tank claim 1 , comprising:a liquid, said liquid ...

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Номер записи: 13
13-06-2013 дата публикации

COMPARTMENTALIZED ANAEROBIC DIGESTERS

Номер: US20130146533A1
Автор: Arnoldsen, Arnoldsen Debra A., JR. Ronald E.
Принадлежит:

An anaerobic digestion device includes a digester body configured to receive organic waste and a plurality of plates coupled to one another so as to divide an interior volume of the digester body into a plurality of compartmentalized chambers. The compartmentalized chambers are movable relative to the digester body to advance a slurry of said organic waste along a length of the digester body. A plurality of ports spaced along the digester body and arranged to vent biogas from the digester body. A storage vessel is configured to receive and store biogas received from the digester body via the ports, and a heating system configured to heat the digester body. The heating system is fuelled by the biogas vented from the digester body. 1. Anaerobic digestion device , comprising:a digester body configured to receive organic waste;a plurality of plates coupled to one another so as to divide an interior volume of the digester body into a plurality of compartmentalized chambers, the compartmentalized chambers being movable relative to the digester body to advance a slurry of said organic waste along a length of the digester body; anda plurality of ports spaced along the digester body and arranged to vent biogas from the digester body.2. Method for anaerobic digestion of organic waste , comprising:receiving organic waste into one of a plurality of compartmentalized chambers of a digester body;moving the compartmentalized chambers relative to the digestor body during the digestion process;collecting biogas from said one chamber at various ports spaced along a length of the digester body; andoutputting a digestate from the digester body.3. Anaerobic digestion system , comprising:a digester body configured to receive organic waste;a plurality of plates coupled to one another so as to divide an interior volume of the digester body into a plurality of compartmentalized chambers, the compartmentalized chambers being movable relative to the digester body to advance a slurry of said ...

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Номер записи: 14
18-07-2013 дата публикации

Treatment of organic waste

Номер: US20130183745A1
Автор: Jorma Oinas, Seppo Aho
Принадлежит: SAVATERRA OY

There is provided an apparatus for assisting hygienization of organic waste. The apparatus comprises at least one reception means for receiving organic solid matter and organic waste, mixing means for mixing the organic waste and the organic solid matter together into an organic mixture, selecting means for selecting whether to expose the organic mixture in the mixing means to either: aeration in order to create a homogenized and internally oxygenous organic mixture, thereby accelerating the hygienization of the organic mixture, or a heat treatment, wherein the heat treatment performs the hygienization of the organic mixture, or to neither the aeration nor the heat treatment. The mixing means may then expose the organic mixture to the aeration, or to the heat treatment, or to neither of the aeration nor the heat treatment on the basis of the selection. The apparatus may further comprise delivery means for passing the organic mixture to either aerobic biodegradation or an end user.

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Номер записи: 15
25-07-2013 дата публикации

Method for treating animal waste

Номер: US20130186155A1
Автор: William BLAINE
Принадлежит: ENVIROKURE Inc

Methods and apparatus for the treatment of animal waste are disclosed, together with a treated animal waste and fertilizer and growth media products derived therefrom.

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Номер записи: 16
25-07-2013 дата публикации

System and Method for Processing Alternate Fuel Sources

Номер: US20130186810A1
Автор: Bart T. Lynam, John J. Sudnick, Thomas A. Volini
Принадлежит: Individual

An energy conserving wastewater treatment system capable of being fueled by alternate fuel sources comprises a synthesis gas generator that produces synthesis gas from a fuel and an organic waste digester that produces biogas. A combined synthesis gas and biogas storage reservoir that is in communication with both the synthesis gas generator and the organic waste digester. At least one boiler is in communication with the combined synthesis gas and biogas storage reservoir.

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Номер записи: 17
01-08-2013 дата публикации

METHODS FOR DEACTIVATING BIOMASS

Номер: US20130192138A1
Автор: Hong P. K. Andy
Принадлежит:

A method of deactivating biomass is set forth. The method includes two stages, a disrupting stage and a rupture stage. The disrupting stage includes the steps of injecting an oxidizer gas into the biomass with minimal or significant elevated pressure and then a depressurizing of the biomass. The steps cause a disruption of cellular membranes of cells present in the biomass. The rupture stage includes the step of injecting the biomass with a rupture gas sufficient to pressurize the biomass to a second elevated pressure following by the depressurizing of the biomass. The injecting and depressurizing steps of the rupture stage can be repeated at least two times in order to rupture the cell membranes and expose residual cell contents. 1. A method of deactivating biomass , comprising:a) performing a disrupting stage by injecting an oxidizer agent into the biomass causing disruption of cellular membranes of cells in the biomass; and i) injecting a rupture gas into the biomass sufficient to pressurize the biomass to a second elevated pressure;', 'ii) depressurizing the biomass;', 'iii) repeating the steps of injecting and depressurizing at least 3 times to rupture the cell membranes and expose residual cell contents., 'b) performing a rupture stage by2. The method of claim 1 , wherein the disrupting stage further includes pressure cycling by injecting the oxidizer agent into the biomass sufficient to pressurize the biomass to a first elevated pressure and then depressurizing the biomass.3. The method of claim 2 , wherein the pressure cycling is repeated 1 to 4 times.4. The method of claim 1 , wherein the oxidizing agent is an oxidizer gas selected from the group consisting of ozone claim 1 , chlorine claim 1 , and mixtures thereof5. The method of claim 4 , wherein the oxidizer gas includes ozone.6. The method of claim 1 , wherein the oxidizing agent is a liquid or a solid.7. The method of claim 6 , wherein the oxidizing agent is KMnO claim 6 , NaClO claim 6 , KFeO claim 6 ...

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Номер записи: 18
01-08-2013 дата публикации

Water treatment device and water treatment method

Номер: US20130193087A1
Автор: Kazuhiko Kano, Kenichi Kataoka, Shigeru Senzaki, Tsuyoshi Moriya, Youichi Shimanuki
Принадлежит: Tokyo Electron Ltd

Provided is a water treatment device with which organic substances contained in raw water to be treated are decomposed to thereby alleviate the load to be imposed on a downstream filter and with which it is possible to avoid corrosion of the piping or the like. The water treatment device 12 includes a large-bore channel 22 , a small-bore channel 23 , and a pressure pump 24 which pressurize raw water 15 a to a given pressure, the raw water containing organic substances, and further includes a laser light source 25 and a condensing lens 26 which irradiates laser light 37 upon the pressurized raw water 15 a to heat the raw water to a given temperature, wherein the laser light 27 emitted from the laser light source 25 is condensed by the condensing lens 26 on a region 29 that is located in the small-bore channel 23 through which the pressurized raw water 15 a flows and that is separated from the wall of the channel, thereby heating the raw water 15 a present in this region 29 and yielding supercritical water or subcritical water to decompose the organic substances contained in the raw water 15 a.

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Номер записи: 19
08-08-2013 дата публикации

MIXTURE FOR REDUCING THE FORMATION OF MAGNESIUM AMMONIUM PHOSPHATE (STRUVITE) IN CLARIFICATION PLANTS

Номер: US20130200301A1
Автор: Cornel Peter, Petzet Sebastian
Принадлежит: TECHNISCHE UNIVERSITAT DARMSTADT

The invention describes a method to prevent the formation of struvite in wastewater treatment plants. For that purpose, calcium silicate hydrate (CSH) is metered out into the excess sludge. 1. Method for the production of a mixture to reduce the formation of magnesium ammonium phosphate (MAP) in wastewater treatment plants , wherein the following steps occur:Addition of calcium silicate hydrate (CSH) to stationary or flowing sludge using a dosage of calcium silicate hydrate (CSH) within a range from 0.001 g to 1 g per dry amount of sludge, so that the pH value in the sludge increases by a maximum of 0.8,Mixing the CSH with the sludge.2. Method according to claim 1 , wherein the calcium silicate hydrate (CSH) comprises tobermorite claim 1 , wollastonite claim 1 , xonolite claim 1 , hillebrandite claim 1 , sandy limestone or a combination of these substances.3. Method according to claim 1 , wherein the calcium silicate hydrate (CSH) comprises 50% to 100% tobermorite claim 1 , preferably 70% tobermorite.4. Method according to claim 1 , wherein the calcium silicate hydrate (CSH) comprises 0% to 40% water claim 1 , preferably 30% water.5. Method according to claim 1 , wherein the calcium silicate hydrate (CSH) is used with a specific surface area of 40 m/g.6. Method according to claim 1 , wherein the sludge comprises primary sludge claim 1 , excess sludge claim 1 , return sludge claim 1 , raw sludge claim 1 , activated sludge or a combination of these types of sludge claim 1 , wherein stabilized types of sludge are also comprised.7. Method according to claim 1 , wherein the sludge is excess sludge and is removed in a secondary clarification tank before the addition of the calcium silicate hydrate (CSH) with a concentration of 8 g/l solid substance.8. Method according to claim 7 , wherein the excess sludge is mixed with parts of the primary sludge after the addition of the calcium silicate hydrate (CSH) and transferred to the stabilization.9. A substance mixture to reduce ...

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Номер записи: 20
26-09-2013 дата публикации

Fuel system and process for its production for environmental protective energetic use of urban sewage sludge

Номер: US20130247458A1
Автор: Georg Szczendzina, Tobias Löhr
Принадлежит: Individual

The present invention relates to a fuel system and to a process for the production of such a fuel system by using urban sewage sludge. Environment protective energetic use of urban sewage sludge and the reduction of fossil Carbon dioxide are the important goals. The fuel system according to the present invention shows a content of fossil carbon which is clearly reduced compared to that of fossil fuels while the fuel-technological properties are the same. Thus the emission of the carbon dioxide based on fossil carbon is notably reduced during the use of the fuel system according to the invention. In one embodiment of the process according to the invention, the fuel system according to the invention is provided consisting of different fossil regular fuels and urban sewage sludge as biogenic carbon donor, with biomasses serving as a biogenic carbon donor.

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Номер записи: 21
26-09-2013 дата публикации

Selenium recovery from bioreactor sludge

Номер: US20130248443A1
Автор: Hong Zhou, Jie Guan, Jungang Zhang, Minggang She, Oijia Fu, Weiqing Xu, Yan Jin, Yanping Liu
Принадлежит: General Electric Co

Wastewater, for example flue gas desulphurization blowdown water, containing soluble selenium is treated in a bioreactor. Microorganisms in the reactor reduce the selenium to elemental selenium, which is insoluble. The elemental selenium is discharged from the reactor in waste sludge also comprising biomass and other suspended solids. Non-microbial suspended solids are removed by way of acid dissolution followed by de-watering. The remaining sludge is burned at a temperature below the selenium oxidation temperature to remove biomass while leaving selenium particles behind.

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Номер записи: 22
03-10-2013 дата публикации

PURIFYING DEVICE FOR SLUDGE UNDER WATER AND METHOF FOR OPERATING THE SAME

Номер: US20130256236A1
Автор: Huang Chun-Ping, Liao Jamie
Принадлежит:

The invention is directed to a purifying device for sludge under water and a method for operating the same. The device includes a main fixing frame having an accommodating portion assess to the outside, a hollow liquid container in the accommodating portion, wherein the liquid container is provided with a liquid-flow hole and at least a backwash hole, multiple filters on the liquid container, and a pump connected to the liquid-flow hole at the liquid container through a liquid pipeline. The method includes steps: moving the liquid container having the filters to an area having a liquid to be filtered; leading the liquid to flow into the liquid container through the filters filtering out solid particles contained in the liquid; and leading a fluid to flow into the liquid container such that the filters can be backwashed accompanying with an external cleaning device if the filters are clogged. 1. A purifying device for sludge under water , comprising:a main fixing frame having an accommodating portion assess to the outside;a hollow liquid container in the accommodating portion of the main fixing frame, wherein a liquid-flow hole is at the liquid container;at least a filter on the liquid container, wherein the filter is provided with an outer surface filtering out small particles and a filtrate discharging hole communicating with the liquid-flow hole and a backwash hole at the liquid container; anda pump connected to the liquid-flow hole at the liquid container through a liquid pipeline such that a negative pressure created from the outer surface to the filtrate discharging hole is applied to the filter.2. The purifying device of claim 1 , wherein the backwash hole at the liquid container has a fluid flow therein through a backwash pipe.3. The purifying device of claim 2 , wherein the fluid flowing into the liquid container through the backwash pipe comprises an air claim 2 , water or filtrate.4. The purifying device of claim 1 , wherein the filter apart from the ...

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Номер записи: 23
24-10-2013 дата публикации

Water treatment system

Номер: US20130277302A1
Автор: David L. Johnson, Klaus Doelle, Steve Giarrusso
Принадлежит: SKD ENVIRONMENTAL SYSTEMS LLP

A treatment system for removing a plurality of pollutants from wastewater includes a removal device for removing a plurality of gross solids from the wastewater, an aeration device for reducing a biochemical oxygen demand (BOD) and a chemical oxygen demand (COD) of the wastewater and a bioreactor containing a bacterial biofilm, said bioreactor including a plurality of cells configured for operation on a predetermined drain fill cycle.

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Номер записи: 24
07-11-2013 дата публикации

Process for the Treatment of Biological Materials and Wastewater

Номер: US20130292329A1
Автор: Northrop Jere
Принадлежит:

A process in which a waste stream containing microbes and organic constituents is passed through a process environment comprising a solid media, microbes, and higher animals, such that some of the microbes and/or organic constituents within the waste stream are removed from the waste stream and some of the removed microbes are destroyed or consumed by the higher animals. The process environment may include an irrigated environment, a submerged environment, or a combined environment. 1. A process in which a waste stream containing microbes and organic constituents is passed through a process environment comprising a solid media , microbes , and higher animals , such that some of the microbes and/or organic constituents within the waste stream are removed from the waste stream and some of the removed microbes are destroyed or consumed by the higher animals.2. The process of claim 1 , wherein the process environment is an irrigated environment.3. The process of claim 1 , wherein the process environment is a submerged environment.4. The process of claim 1 , wherein the process environment is a combined environment comprising an irrigated environment and a submerged environment.5. The process of claim 1 , wherein the waste stream is an effluent stream from at least one of an activated sludge wastewater treatment system claim 1 , a biological nutrient removal treatment system claim 1 , a confined animal facility operation claim 1 , a food processing facility claim 1 , and/or a pharmaceutical processing facility.6. The process of claim 1 , wherein the waste stream comprises animal manure.7. The process of claim 1 , wherein at least some of the liquid exiting the process environment having a first total solids value is recycled into the process environment for further treatment.8. The process of claim 7 , wherein the liquid exiting the process environment after being recycled into the process environment has a second total solids value claim 7 , the second total solids ...

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Номер записи: 25
21-11-2013 дата публикации

WASTE TREATMENT PROCESS

Номер: US20130306575A1
Автор: Comp Shannon, Draper Malcolm, Foster George G., Kesler Frederick P.
Принадлежит: EARTH RENEWAL GROUP, LLC

A process for treating waste includes reacting an organic feedstock in a reactor. The organic feedstock is part of a reaction mixture that includes a first oxidizing acid (e.g., sulfuric acid) and nitric acid. The weight ratio of solids in the organic feedstock to the total of the first oxidizing acid and the nitric acid is at least 0.2. The weight ratio of solids in the organic feedstock to the first oxidizing acid is at least 0.3. The weight ratio of solids in the organic feedstock to the nitric acid is at least 0.5. 1. A method comprising:reacting an organic feedstock in a reactor, the organic feedstock being part of a reaction mixture that includes a first oxidizing acid and nitric acid;wherein the weight ratio of solids in the organic feedstock to the total of the first oxidizing acid and the nitric acid is at least 0.2.2. The method of wherein the organic feedstock includes sewage material.3. The method of wherein the weight ratio of the solids in the organic feedstock to the total of the first oxidizing acid and the nitric acid is at least 0.5.4. The method of wherein the reaction mixture claim 1 , excluding solids claim 1 , includes no more than approximately 7.5 wt % of the total of the first oxidizing acid and the nitric acid.5. The method of wherein the reaction mixture claim 1 , excluding solids claim 1 , includes no more than approximately 5 wt % of the first oxidizing acid.6. The method of wherein the first oxidizing acid includes sulfuric acid.7. The method of comprising maintaining the reaction mixture at a temperature of no more than approximately 210° C.8. The method of comprising maintaining a pressure in the reactor of at least 1035 kPa.9. The method of comprising supplying oxygen gas to the reactor.10. The method of wherein reacting the organic feedstock in the reactor forms an effluent including a liquid fraction claim 1 , the method comprising separating heavy metals from the liquid fraction.11. The method of wherein separating the heavy ...

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Номер записи: 26
28-11-2013 дата публикации

PROCESSES AND APPARATUSES FOR TREATING AND/OR INCREASING DRYNESS OF A SUBSTANCE

Номер: US20130313117A1
Автор: Bourega Abdelaziz, CHAMOUNI Mostafa, DERMOUNE Adberrahmane, DIONNE Jean-Pierre, PARADIS Roger, SARRAZIN-SULLIVAN Dany
Принадлежит:

There are provided apparatuses for increasing dryness of a substance. The apparatuses comprise at least one module, each of the module(s) comprising at least two electrodes adapted to submit the substance to an electric current. The electrodes are also adapted to compress the substance. There are also provided processes for increasing dryness of a substance. 1. (canceled)2. An apparatus for increasing dryness of a substance , said apparatus comprising a feeding system adapted to allow a uniform spreading of the substance at a defined thickness , at least one module , each of said module(s) comprising at least two electrodes adapted to submit said substance to an electric current , a conveyor for imparting a movement in a predetermined direction to said substance; wherein one of said electrodes is part of or in contact with said conveyor , and another of said electrodes is adapted to move in a direction which is substantially perpendicular to said predetermined direction and to compress said substance.35-. (canceled)6. The apparatus of claim 2 , wherein at least one of said electrodes is adapted to provide an electrolyte to said substance for reducing and/or preventing voltage loss at said electrode.79-. (canceled)10. The apparatus of claim 2 , wherein one of said electrodes is adapted for dispensing an electrolyte at an electrode-substance interface.1114-. (canceled)15. The apparatus of claim 2 , further comprising at least one pneumatic actuator claim 2 , at least one mechanical system claim 2 , at least one piston claim 2 , or at least one electrical system for moving said other electrode.1622-. (canceled)23. The apparatus of claim 2 , wherein voltage claim 2 , electrical current claim 2 , and pressure are independently controlled for each module.2427-. (canceled)28. The apparatus of claim 2 , wherein said apparatus comprises at least two modules disposed in series claim 2 , said apparatus comprising claim 2 , between adjacent modules claim 2 , a transfer system ...

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Номер записи: 27
05-12-2013 дата публикации

Wastewater treatment process with anaerobic mbbr

Номер: US20130319940A1
Автор: Juan Carlos Josse, Michael David Theodoulou, Sasha ROLLINGS-SCATTERGOOD
Принадлежит: Anaergia Inc

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.

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Номер записи: 28
12-12-2013 дата публикации

Digester gas mixer for liquid waste treatment

Номер: US20130327694A1
Автор: Kristinn G. Drewry, Richard J. Koopmans, William A. Arnold
Принадлежит: Individual

A mixer for anaerobic decomposition of sludge in a digester, captures and compresses biogas emitted by the decomposing sludge. The compressed biogas proceeds through supply lines to gas accumulating apparatus mounted in the lower portion of the digester, close to or on the digester floor. Biogas accumulates in the gas accumulating apparatus to emerge as large mixing bubbles from 6 inches to 10 feet in diameter along their largest dimension. The mixing bubbles are large enough to generate a strong mixing current in the sludge that moves sludge as the bubbles rise to the surface. The mixing current mixes the sludge containing dissolved and suspended pollutants to promote the conversion of the pollutants by microorganisms contained in the sludge.

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Номер записи: 29
12-12-2013 дата публикации

METHOD AND SYSTEM FOR TREATING WASTEWATER AND SLUDGES BY OPTIMIZING sCO2 FOR ANAEROBIC AUTOTROPHIC MICROBES

Номер: US20130327709A1
Автор: Stroot Peter George
Принадлежит: UNIVERSITY OF SOUTH FLORIDA

The present invention describes a method of optimizing COconcentration to increase the specific growth rate of Anammox bacteria and methanogens in wastewater and sludge treatment, as well as novel systems and methods of treating wastewater and sludge. The specific growth rate or doubling time of the Anammox bacteria and methanogens were determined to be sensitive to dissolved COconcentration. Optimizing dissolved COconcentration increases the specific growth rate of the Anammox bacteria, which may be used as an alternative biological nitrogen removal process for the treatment of domestic wastewater. In the method and system of treating sludge, the COstripper returns biogas with low COconcentration to the headspace of an anaerobic digester in order to lower the headspace COconcentration and therefore, the soluble COconcentration. The lower soluble COconcentration increases the specific growth rate of the methanogens for a more efficient anaerobic digestion process. 1. A method of increasing the specific growth rate of anaerobic , autotrophic microbes in a wastewater treatment system comprising:{'sub': '2', 'optimizing dissolved COfurther comprising{'sub': '2', 'establishing an optimal control value for the soluble COconcentration for wastewater;'}{'sub': '2', 'measuring the concentration of soluble COfor the wastewater;'}{'sub': '2', 'comparing the measured concentration of soluble COin the wastewater against the optimal control value; and'}{'sub': 2', '2, 'adjusting the measured concentration of soluble COto match the optimal soluble COcontrol value;'}{'sub': '2', 'whereby optimizing the soluble COincreases the specific growth rate of the bacteria.'}2. The method of claim 1 , wherein the microbes are Anammox bacteria.3. The method of claim 1 , wherein the microbes are methanogens.6. The method of claim 1 , wherein the soluble COconcentration of the wastewater in the aeration tank is adjusted by passing the wastewater through COstripping equipment.7. The method of ...

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Номер записи: 30
26-12-2013 дата публикации

METHOD FOR DESULPHURATION OF THE DIGESTATE AND THE BIOGAS OF A DIGESTER, AND BIOGAS PRODUCTION FACILITY IMPLEMENTING SAID METHOD

Номер: US20130341269A1
Автор: Bouchet Caroline, Nicol Roger, PRÉVOT Claude
Принадлежит: Degremont

The invention relates to a method for desulphuration of the digestate and biogas in a digester () of urban and/or agricultural and/or industrial effluent, by biochemical and/or thermochemical processes, the digester consisting of an enclosure () which is closed at the top, in which anaerobic digestion of a mass of products to be treated making up the digestate () takes place, the digester comprising at least one loop () for external recirculation of the digestate; an oxidant is injected at least at one point () of the loop (), the injection conditions being as follows: the speed of circulation of the digestate in the loop () must be high enough to prevent the deposition of sulphur on the walls of the pipes; the contact time between the injected oxidant and the recirculated digestate recirculated from the injection point () of the oxidant until the reinjection point ( ) of the digestate must be long enough for all the oxidant to be dissolved in the liquid phase of the digestate; the amount of oxygen in the oxidant injected into the recirculation loop must be low enough to avoid the presence of oxygen in the biogas, but high enough to eliminate the hydrogen sulphide from the biogas. 1. A method for desulfuration of the digestate and the biogas in a digester for urban and/or agricultural and/or industrial effluents , by wet and/or dry route , the digester consisting of a chamber which is closed at the top and in which anaerobic digestion of a mass of products to be treated takes place , forming the digestate , with a gas space above the digestate , from which the biogas is withdrawn , the digester comprising at least one external digestate recirculation loop , said method being wherein:the digestate withdrawal point is situated in the lower part of the digester, and the digestate is reinjected at a point at a liquid level higher than the withdrawal point,at at least one point of the digestate recirculation loop, a gaseous or liquid oxidant is injected, the injection ...

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Номер записи: 31
06-02-2014 дата публикации

ORGANICS AND NUTRIENT RECOVERY FROM ANAEROBIC DIGESTER RESIDUES

Номер: US20140033776A1
Автор: BENEDEK Andrew, JOSSE Juan Carlos, Scott Zachary, THEODOULOU Michael David
Принадлежит: ANAERGIA INC.

Sludge from an anaerobic digester is treated to recover one or more of fibers, or solids or liquids with a high nutrient content. The solids or liquids can be used as a fertilizer. The fibers can be used in a plant growing medium. Solids are separated from liquids in the sludge and dried. The solids may be dried to produce a flake or pellet. Ammonia in the liquids is recovered and used to produce a concentrated acidic ammonium salt solution. This solution may be mixed with the solids to produce a nitrogen enhanced solid. The fibers and solids or liquids can also be used in combination to produce an enhanced plant growing medium. A device and process for removing ammonia from a liquid can be used in the system or separately. 1. A process for treating a sludge , the sludge comprising solids and ammonia , the process comprising the steps of ,(a) separating the sludge into a solids fraction and a liquid fraction, the liquid fraction comprising ammonia;(b) treating the liquid fraction to produce an ammonium salt solution; and,(c) combining the solids fraction with the ammonium salt solution.2. The process of wherein the liquid fraction comprises alkalinity claim 1 , and the ammonium salt solution is acidic and has an increased concentration of ammonia and decreased alkalinity relative to the liquid fraction.3. The process of comprising producing a flake claim 1 , granule or pellet comprising the solids fraction and the ammonium salt solution.4. The process of further comprising a step of drying the flake claim 3 , granule or pellet by way of flowing air over the pellets at a temperature of 90 degrees Celsius or less or 80 degrees Celsius or less.5. The process of wherein the flake claim 3 , granule or pellet is combined with compost.6. The process of wherein the compost comprises fibers separated from the sludge prior to step (a).7. The process of wherein step a) comprises one or more of physical or mechanical dewatering and thermal drying.8. The process of further ...

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Номер записи: 32
06-02-2014 дата публикации

TREATMENT OF WASTE PRODUCTS WITH ANAEROBIC DIGESTION

Номер: US20140034574A1
Автор: BENEDEK Andrew, JOSSE Juan Carlos
Принадлежит: ANAERGIA INC.

A waste stream is treated by anaerobic digestion. A process is described involves a step of separating solids from digestate, and returning separated solids to a digester. Optionally, there may be a step of solids separation in which larger solids are removed from the digester. A process and apparatus are described for treating waste sludge from a wastewater treatment plant in an anaerobic digester. Feed sludge is thickened or solids are separated from digestate and returned to the digester. Additional co-digestion waste may be added to the digester. The process and apparatus may be used in a retrofit of an existing wastewater treatment plant. 1. A process for treating low strength wastewater comprising the steps of ,a) treating the waste in an anaerobic digester to produce a digestate;b) separating a first solids stream from the digestate;c) returning the first solids stream to the digester;d) separating a second solids stream from the digester; and,e) removing the second solids stream from the process.2. The process of wherein the second solids stream comprises solid particles that are larger than solid particles in the first solids stream.3. The process of wherein the second solids stream comprises undigestible solids and the first solids stream comprises anaerobic bacteria.4. The process of wherein the first solids stream is separated from digestate that has had the second solids stream removed from it.5. The process of wherein the second solids stream is removed by way of a device having a filter or screen with openings of 300 microns.6. The process of wherein the first solids stream is removed by way of a device having a filter or screen with openings of 10-200 microns.7. The process of wherein the first solids stream is retained in a tubular membrane filter.8. A process for treating waste sludge from a wastewater treatment plant comprising the steps of claim 1 ,a) flowing the waste sludge to an anaerobic digester;b) thickening the waste sludge before it ...

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Номер записи: 33
13-02-2014 дата публикации

Nozzled Confined Container for Treating Sludge

Номер: US20140042107A1
Автор: Powell John E.
Принадлежит:

The disclosure relates to an apparatus, system, and methodology for treating nested waste matter, including a delivery system for delivering a volume of untreated material; a confined container having an inlet connected to the delivery system; an energy impingement device introduced transversely into said confined container, where the energy impingement device is configured to deliver a volume of injected fluid and further configured to treat the volume of untreated material in said confined container and wherein the confined container has an outlet for exiting a volume of treated material. 1222. An apparatus as shown , described and/or implied that a confined container with inlet and outlet , that inside the confined container the inlet material undergoes a method where the input material is processed creating a treated material that is changed to the further benefit of the operators desire. This apparatus claims the use of one or more energy impingement devices configured to deliver this energy to the confined treatment container. It is further claimed that the energy delivery system may also be chemical , biological , heat or cold , electrical , vibration in any combination or delivery system not limited to the pipe illustrated in or ; and may include any pipe combination , hopper , flex hose , tubing , lance , any combination thereof , and the like used inside this confined container to process. It is further claimed that this container is not limited to the pipe illustrated in or ; but may include any containment , container , pipe (ing) or vessel combination , hopper , flex hose , tubing , any combination thereof , and the like. It is further claimed that the inlet or outlet delivery into the confined container is also not limited to the pipe illustrated in or ; but may include any delivery apparatus and/ or mechanism , pipe(ing) or other vessel combination , hopper , flex hose , tubing , any combination thereof , and the like.2. A system as shown , described ...

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Номер записи: 34
20-02-2014 дата публикации

SYSTEM, APPARATUS, AND METHODS FOR DISPOSAL OF FLUID WASTES

Номер: US20140048138A1
Автор: Kenmore Ferron, Kenmore Tyrel
Принадлежит: Kenmore Holdings Inc.

A system may facilitate recovery and solidification of a fluid waste during its transfer into a transportable bulk container. The system comprises: (i) a metered supply of a solidifying agent; (ii) a metered supply of a bulking material, (iii) apparatus for commingling the metered supplies of solidifying agent and bulking material, and (iv) a tee apparatus having a first port for engaging and receiving the fluid waste, a second port for engaging and receiving a commingled supply of a mixing agent and a bulking material, and a third port for discharging the fluid waste and commingled mixing agent and bulking material. 1. A system for recovery and solidification of a fluid waste , the system comprising:a tee apparatus having a first port for engaging and receiving the fluid waste, a second port for engaging and receiving a commingled supply of a solidifying agent and a bulking material, and a third port for discharging the fluid waste and commingled solidifying agent and bulking material;a first conduit for recovering and conveying the fluid waste to the tee apparatus;a first device for conveying the fluid waste along the first conduit;a supply of the solidifying agent;a supply of the bulking material;a second device for receiving and commingling the supply of the solidifying agent and the supply of the bulking material;a second conduit for conveying the commingled supplies of the solidifying agent and the bulking material to the tee apparatus; anda third device for conveying the commingled supplies of the solidifying agent and the bulking material along the second conduit.2. The system of claim 1 , additionally comprising a transportable bulk container for receiving therein the discharged fluid waste and commingled mixing agent and bulking material.3. The system of claim 1 , additionally comprising a framework for mounting thereon the tee apparatus.4. The system of claim 3 , wherein the framework is mountable onto a side or a top portion of a transportable bulk ...

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Номер записи: 35
20-02-2014 дата публикации

OPTIMIZED PROCESS FOR TREATING WASTE VIA HYDROTHERMAL TREATMENT

Номер: US20140051903A1
Автор: Cansell Francois
Принадлежит: INNOVEOX

The present invention relates to a process for hydrothermal oxidation of organic compounds, optionally with oxidizable inorganic compounds, contained in an aqueous effluent, wherein said aqueous effluent is injected within a tubular reactor wherein the effluent is brought to a supercritical pressure and wherein the temperature of the effluent is gradually increased from its initial temperature up to a supercritical temperature, without any intermediate decrease in temperature, by introducing within said tubular reactor a sufficient amount of oxidizing agent for totally oxidizing the organic compounds and optionally for at least partly oxidizing oxidizable inorganic compounds, the oxidizing agent being introduced in a fractionated way in several points increasingly located downstream, and wherein the composition and/or the concentration of the organic compounds and/or oxidizable organic compounds within the effluent to be treated varies over time, and, upstream from the tubular reactor wherein oxidation is carried out, the TOD of the effluent to be treated is measured and monitored at a value of more than 120 g/L and of less than 250 g/L prior to its injection into the tubular reactor. 1. A process for hydrothermal oxidation of organic compounds contained in an aqueous effluent , optionally with oxidizable inorganic compounds , wherein said aqueous effluent is injected within a tubular reactor wherein the effluent is brought to a supercritical pressure and wherein the temperature of the effluent is gradually increased from its initial temperature up to a supercritical temperature , designated by T , without any intermediate decrease in temperature during the increasing time-dependent change up to Tby introducing within said tubular reactor a sufficient amount of oxidizing agent for totally oxidizing the organic compounds and optionally for at least partly oxidizing oxidizable inorganic compounds , the oxidizing agent being introduced in a fractionated way into ...

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Номер записи: 36
27-03-2014 дата публикации

Process for treating microfibrillated cellulose and microfibrillated cellulose treated according to the process

Номер: US20140088301A1
Автор: Ari KOTILAINEN, Isto Heiskanen, Jonas Sidaravicius, Kaj Backfolk, Valentas Gaidelis
Принадлежит: STORA ENSO OYJ

The present invention relates to a process for dewatering a slurry comprising microfibrillated cellulose wherein the process comprises the following steps of, providing a slurry comprising microfibrillated cellulose and liquid, subjecting the slurry to an electric field inducing the liquid of the slurry to flow and separating the liquid from the microfibrillated cellulose. The invention also relates to microfibrillated cellulose dewatered according to the process.

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Номер записи: 37
07-01-2016 дата публикации

WASTEWATER TREATMENT WITH MEMBRANE AERATED BIOFILM AND ANAEROBIC DIGESTER

Номер: US20160002081A1
Автор: COTE Pierre Lucien
Принадлежит:

A wastewater treatment system having a first solid-liquid separation unit, a membrane aerated biofilm (MABR) reactor, a second solid-liquid separation unit and an anaerobic digester. Waste sludges from the solid-liquid separation units are treated in the anaerobic digester. The solid-liquid separation unit preferable comprises a micro-sieve. The treatment system may also comprise an aerated contact tank with a hydraulic retention time of 6 hours or less. Optionally, the MABR may comprise a membrane filtration unit. 1. A wastewater treatment system , comprising:a first solid-liquid separation device;a membrane aerated biofilm reactor;a second solid-liquid separation device; andan anaerobic digester, the membrane aerated biofilm reactor is downstream of the first solid-liquid separation unit,', 'the second solid-liquid separation unit is downstream of the membrane aerated biofilm reactor, and', 'sludge outlets from each of the first solid-liquid separation unit and the second solid-liquid separation unit are connected to the anaerobic digester., 'wherein;'}2. The wastewater treatment system of claim 1 , wherein the first solid-liquid separation device comprises a micro-sieve.3. The wastewater treatment system of claim 1 , further comprising an aeration tank upstream of the membrane aerated biofilm reactor.4. The wastewater treatment system of claim 3 , wherein the aeration tank is configured to operate with a solids retention time of 6 days or less.5. The wastewater treatment system of claim 3 , wherein the aeration tank is configured to operate with a hydraulic retention time of 6 hours or less.6. The wastewater treatment system of claim 3 , further comprising a sludge recycle line connected to the aeration tank or a point upstream of the aeration tank.7. The wastewater treatment system of claim 3 , wherein the first solid-liquid separation device is upstream of the aeration tank.8. The wastewater treatment system of claim 7 , further comprising a third solid-liquid ...

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Номер записи: 38
02-01-2020 дата публикации

CONTROLLING DIGESTER BIOSOLIDS AND WASTEWATER ACTIVATED SLUDGE SYSTEMS

Номер: US20200002202A1
Автор: Bock Albert
Принадлежит:

Disclosed are various embodiments for measuring ionic activity by quantifying total dissolved solids (TDS) concentration in wastewater. In some embodiments, ionic activity of wastewater is monitored by quantifying the total dissolved solids concentration, which can be used for determining the ammonia reduction progress through nitrification and the luxurious phosphorous uptake process reaction and/or the reaction progress of soluble phosphorous species and reactive ions, including one or more alkali and alkaline-earth species and/or soluble metals species, to form non-soluble ionic phosphorous precipitate during biological activated wastewater processes and digester biosolids treatment processes. 1. A system , comprising:at least one sensor configured to obtain at least one measurement from wastewater; determine a calculated slope progress of ionic activity of the wastewater as a function of treatment duration time using the at least one measurement obtained by the at least one sensor; and', 'perform a wastewater treatment process based at least in part on the calculated slope progress of the ionic activity of the wastewater., 'a controller configured to2. The system of claim 1 , wherein the wastewater comprises at least one of:influent wastewater, waste activated sludge, primary sludge, and septage.3. The system of claim 1 , wherein the wastewater contains at least one pollutant claim 1 , the at least one pollutant comprising at least one of: soluble or insoluble phosphorous species claim 1 , soluble or insoluble nitrogen species claim 1 , and soluble or insoluble carbon species.4. The system of claim 1 , wherein the wastewater treatment process comprises at least one of: aerobic claim 1 , anaerobic claim 1 , and anoxic treatment.5. The system of claim 1 , wherein the slope progress of ionic activity is determined by the controller as a function of at least one of: a rolling average claim 1 , a standard deviation claim 1 , a slope claim 1 , global maxima claim 1 , ...

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Номер записи: 39
03-01-2019 дата публикации

NON-SCALING WET AIR OXIDATION SYSTEM AND PROCESS

Номер: US20190002322A1
Автор: Cooley Curtis D., Felch Chad L., Larson Simon
Принадлежит:

There is provided a system and a method for regenerating a material that reduce the incidence of scaling due to scale forming contaminants. The method may include reducing a temperature of a treated material exiting a wet air oxidation unit in a scale reducing heat exchanger prior to delivery of the treated material to a second heat exchanger which heats a source waste material comprising a scale forming contaminant therein with heat from the first treated material to form a heated waste material comprising the scale forming contaminant. 124-. (canceled)25. A treatment process comprising:reducing a temperature of a regenerated carbon material exiting a wet air oxidation unit in a first heat exchanger;delivering the reduced temperature regenerated carbon material from the first heat exchanger to a second heat exchanger, wherein the second heat exchanger heats a spent carbon material comprising spent carbon and a scale forming contaminant with heat from the regenerated carbon material to generate a heated spent carbon material; anddelivering the heated spent material to the wet air oxidation unit for regeneration of the heated spent carbon material;wherein the temperature is reduced to a temperature less than a solubility temperature limit of the scale forming contaminant at a given concentration of the scale forming contaminant.2636. The process of claim , wherein the temperature is reduced to a temperature of about 100° C. to about 185° C.2735. The process of claim , wherein the regenerated carbon material further comprises an oxygen depleted gas mixture , wherein the oxygen depleted gas mixture is also utilized to heat the spent carbon material.2835. The process of claim , wherein the scale forming contaminant comprises a member selected from the group consisting of aluminum , calcium , carbonate , iron , magnesium , phosphorus , sulfate , and combinations thereof2939. The process of claim , wherein the scale forming contaminant comprises calcium sulfate.3135. The ...

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Номер записи: 40
03-01-2019 дата публикации

TWO STAGE PYROLYSIS OF ORGANIC WASTE

Номер: US20190002323A1
Автор: BENEDEK Andrew, JOSSE Juan Carlos
Принадлежит:

Organic waste is treated by pyrolysis or by anaerobic digestion followed by pyrolysis of the digestate. The pyrolysis is performed in two staged reactors. The second stage reactor treats char produced in the first stage. The temperature of the first stage reactor is preferably 450 degrees C. or less. The temperature of the second stage reactor is higher than the temperature of the first stage, for example by 50 degrees C. or more. Optionally, there may be a char cooler, a water sprayer, or both downstream of the char outlet of the second reactor. In an exemplary system, a digestate outlet is connected to the inlet of the first pyrolysis reactor. A pyrolysis liquid outlet of the first pyrolysis reactor is connected to the digester. Char produced in the second pyrolysis reactor may be used as a soil amendment. 1. A process for treating organic waste comprising steps of ,pyrolysing the organic waste in a first stage and producing at least a first char; and,pyrolysing the first char in a second stage and producing a second char.2. The process of wherein the temperature in the second stage is higher than the temperature of the first stage by 50 degrees C. or more.3. The process of wherein the temperature of the first stage is 450 degrees C. or less4. The process of wherein the first stage produces a liquid and the further comprises treating at least a portion of the liquid in an anaerobic digester.5. The process of further comprising separating an oily fraction from the liquid.6. The process of further comprising burning or pyrolysing the oily fraction.7. The process of wherein the organic waste comprises digestate.8. The process of further comprising cooling the second char.9. The process of further comprising spraying water on the second char.10. The process of further comprising adding gas produced in the first stage or the second stage or both to sludge in an anaerobic digester or burning the gas to produce heat for pyrolysis or drying digestate.11. The process of ...

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Номер записи: 41
20-01-2022 дата публикации

Two-Times-Two Tank Process and System

Номер: US20220017397A1
Автор: Andreas Helland Lillebø, Hans Rasmus Holte
Принадлежит: Cambi Technology AS

A method and plant for hydrolysis of a liquid substrate, having a dry solids content of between 2 and 30%, to be used in an anaerobic fermentation, digestion or another process aimed at producing or extracting methane or other valuable substances, which method and plant relies on the use of vacuum and several pulpers and one or several flashtanks in series for step-wise pre-heating and pressure reduction, respectively.

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Номер записи: 42
08-01-2015 дата публикации

COMBINED BIOREACTOR FOR THE TREATMENT OF WASTE WATER, BY MEANS OF ANAEROBIC, AEROBIC AND ANOXIC PROCESSES OF DEGRADATION OF ORGANIC MATTER WITH ZONE SEPARATOR SYSTEM AND COLLECTION OF BIOGASES, SCUM AND SLUDGE

Номер: US20150008169A1
Автор: Valdes Simancas Francisco Xavier
Принадлежит:

A bioreactor for anaerobic, aerobic and anoxic digestion of organic matter from wastewater, having a bottom anaerobic zone where the wastewater is fed where anaerobic bacteria produces biogas and the sludge produced is deposited on the bottom and subsequently extracted. An anoxic middle zone contains denitrifying bacteria which converts nitrates to nitrogen, and an aerobic zone at the upper part where at least one biological contact rotor is disposed, which degrade organic matter remaining in the water. The growth of nitrifying bacteria converts ammonia nitrogen into nitrites and nitrates. The tank has a plurality of rhomboids for biogas, sludge and scum collection that join together form a intermediate polyhedral separator panel. The rhomboids joined together define conical collectors with connecting nozzles of ducts from a capture and conduction network of biogas and funnel-shaped manifolds with connecting nozzles of ducts that define a capture and conduction network of sludge and scum. 1. A combined bioreactor for wastewater treatment , through anaerobic , aerobic and anoxic processes of organic matter degradation with zone separator system and biogas , scum and sludge collection , wherein the combined biorector comprises an anaerobic zone in the bottom where the wastewater to be sanitized is feed , where degradation of organic matter from wastewater is encouraged by the action of anaerobic bacteria that produce biogas (CHand CO) and the little generated is deposited to the bottom which is extracted through one perforated pipe located on the bottom of the bioreactor; an anoxic or transition zone in the medium , for the water from the anaerobic zone together with a quantity of recirculation water from an aerobic zone , with growth of denitrifying bacteria that convert nitrates from the recirculation stream to gaseous nitrogen in presence of carbon compounds contained in the water; and aerobic zone at the upper part where at least one biological contact rotor is ...

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Номер записи: 43
08-01-2015 дата публикации

GRIT REMOVAL SYSTEM

Номер: US20150008196A1
Автор: Caraganis George, Foster Glen, Kotelko Mike, Kotelko Peter
Принадлежит:

A grit removal system for tanks with a need to remove settled solids (e.g., anaerobic digester tank) is described. The system is especially suitable for a large tank, preferably having a flat floor, and it works well while submerged under a liquid. Specifically, a periphery-driven rack & pinion mechanism drives a shaft to rotate about a center pivot, and scrapes settled solids towards tank periphery, where the solids fall into a pit on the tank floor. A drainage opening inside the pit, when opened by a valve, is used to flush out the solids through a standpipe into a settlement tank for final dewatering and solid disposal. The system is compatible for continuous tank operation, and is useful for stirring tanks requiring periodic sediment removal. 23-. (canceled)4. The solid removal system of claim 1 , wherein the standpipe is connected to the opening within the pit through a proximal pipe claim 1 , and connected to a discharge tank for receiving the solids through a distal pipe.5. The solid removal system of claim 4 , wherein the discharge mechanism comprises:(a) a first valve on the proximal pipe that controls the flow from the opening to the standpipe; and,(b) a second valve on the distal pipe that controls the flow from the standpipe to the discharge tank.6. The solid removal system of claim 5 , wherein said first valve and said second valve are designed not to open at the same time.78-. (canceled)9. The solid removal system of claim 4 , wherein the discharge mechanism comprises a third valve for preventing the flow or controlling the level of flow from the opening to the standpipe.10. (canceled)11. The solid removal system of claim 1 , further comprising a settled-solid moving system configured to move solids settled at the bottom of the tank towards the pit.12. The solid removal system of claim 11 , wherein the settled-solid moving system comprises:(a) a rack, as a part of a rack and pinion assembly, disposed around an inner periphery of the tank;(b) a center ...

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Номер записи: 44
12-01-2017 дата публикации

Biosludge Reduction Method

Номер: US20170008787A1
Автор: Chang-Ching Lin
Принадлежит: Individual

A biosludge reduction method includes: fracturing a biosludge under oscillation of an aqueous solution to split zoogleal bacteria flocs contained in the biosludge so as to form a mixture containing the fractured biosludge and the aqueous solution; introducing an oxidizing agent gas into the mixture to bring the fractured biosludge in contact with the oxidizing agent gas; and reacting the mixture with the oxidizing agent gas so as to conduct lysis of the zoogleal bacteria.

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Номер записи: 45
12-01-2017 дата публикации

Biosludge Treatment System

Номер: US20170008788A1
Автор: LIN CHANG-CHING
Принадлежит:

A biosludge treatment system includes: a fracture unit including a fracture tank formed with a fracture chamber, a first circulation pipeline in fluidic communication with the fracture chamber, and an inner circulation sub-unit disposed in the fracture chamber and in fluidic communication with the first circulation pipeline; a pre-mixing unit mounted downstream of the fracture unit and including a pre-mixing tank formed with a pre-mixing chamber, a fracture chamber-connecting conduit in fluidic communication with the fracture chamber and the pre-mixing chamber; and a lysis unit mounted downstream of the pre-mixing unit and including a lysis tank formed with a lysis chamber, a second circulation pipeline in fluidic communication with the pre-mixing chamber-connecting conduit and the lysis chamber. 1. A biosludge treatment system , comprisinga fracture unit including a fracture tank formed with a fracture chamber, a first circulation pipeline in fluidic communication with said fracture chamber, and an inner circulation sub-unit disposed in said fracture chamber and in fluidic communication with said first circulation pipeline;a pre-mixing unit mounted downstream of said fracture unit and including a pre-mixing tank formed with a pre-mixing chamber, a fracture chamber-connecting conduit in fluidic communication with said fracture chamber and said pre-mixing chamber, a gas supply pipe connected to said fracture chamber-connecting conduit for providing an oxidizing agent gas, a pre-mixing chamber-connecting conduit in fluidic communication with said pre-mixing chamber and mounted downstream thereof; anda lysis unit mounted downstream of said pre-mixing unit and including a lysis tank formed with a lysis chamber, a second circulation pipeline in fluidic communication with said pre-mixing chamber-connecting conduit and said lysis chamber, and a flow-directing sub-unit mounted in said lysis chamber.2. The biosludge treatment system of claim 1 , wherein said first ...

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Номер записи: 46
12-01-2017 дата публикации

METHODS FOR REDUCING GREENHOUSE EMISSIONS FROM ANIMAL MANURE

Номер: US20170008790A1
Автор: Hackett Harry P., Nicholson John Patrick, Nicholson Timothy Joseph
Принадлежит:

Greenhouse gases are lowered in treatment of animal manure from a CAFO by eliminating or reducing anaerobic digestion. The manure product is admixed with drying agents and is suitable for use as fertilizer or fuel while severely curtailing odor at the same time. 1. A method of decreasing emission of CO-equivalent greenhouse gases in a CAFO operation , comprising:substantially reducing anaerobic digestion of organic waste solids contained in a liquid from a CAFO and preserving organic nitrogen in the liquid in an anaerobic lagoon by increasing the pH of the liquid to above 9.0 or decreasing the pH of the liquid to below 5.5;concentrating undigested organic waste solids by dewatering; andneutralizing the concentrated undigested organic waste solids in a mixer, optionally with an addition of a drying agent, wherein the heat of the neutralization reaction and energy input of the mixer result in the formation of a dry admixture.2. The method of claim 1 , wherein the organic waste solids are contained in a sluice liquid containing manure and water claim 1 , and the step of increasing the pH or lowering the pH of the anaerobic lagoon occurs prior to entry of the sluice liquid into the anaerobic lagoon.3. The method of claim 1 , wherein the pH is adjusted by addition of HCl claim 1 , HSO claim 1 , waste pickle liquor claim 1 , gypsum claim 1 , limestone claim 1 , lime claim 1 , lime kiln dust claim 1 , cement kiln dust claim 1 , coal or wood combustion ash claim 1 , potash claim 1 , or soda ash.4. The method of claim 1 , further comprising capturing ammonia liberated during the addition of a drying agent to the organic waste solids.5. A method of preventing anaerobic decomposition of organic nitrogen of manure in an anaerobic lagoon claim 1 , the method comprising:adding an alkaline or acid component to a concentrated manure slurry prior to the slurry's entrance to the lagoon such that anaerobic biological decomposition of the organic nitrogen of the manure while in the ...

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Номер записи: 47
12-01-2017 дата публикации

Method for Making a Biosludge-Based Biomass Fuel

Номер: US20170009164A1
Автор: LIN CHANG-CHING
Принадлежит:

A method for making a biosludge-based biomass fuel includes: introducing an oxidizing agent gas and an aqueous solution into a biosludge to undergo lysis of bacteria contained in a biosludge under oscillation of the oxidizing agent gas and the aqueous solution so as to form a pre-treated biosludge mixture; filtering out the oxidized biosludge from the pre-treated biosludge mixture under pressurized treatment to form biosludge solids; drying the biosludge solids; grinding the dried biosludge solids to form particulate biosludge solids; and mixing the particulate biosludge solids with an oil sludge. 1. A method for making a biosludge-based biomass fuel , comprising:introducing an oxidizing agent gas and an aqueous solution into a biosludge to undergo lysis of bacteria contained in the biosludge under oscillation of the oxidizing agent gas and the aqueous solution so as to form a pre-treated biosludge mixture;filtering out the oxidized biosludge from the pre-treated biosludge mixture under pressurized treatment to form biosludge solids;drying the biosludge solids;grinding the dried biosludge solids to form particulate biosludge solids; andmixing the particulate biosludge solids with an oil sludge.2. The method for making a biosludge-based biomass fuel of claim 1 , wherein the oxidizing agent gas is ozone and the aqueous solution is water.3. The method for making a biosludge-based biomass fuel of claim 2 , wherein the ozone is introduced in an amount of 0.06 to 0.13 grams per 1 gram of dry weight of the biosludge.4. The method for making a biosludge-based biomass fuel of claim 1 , wherein the biosludge solids obtained from filtering of the pre-treated biosludge mixture has a water content ranging from 55% to 65%.5. The method for making a biosludge-based biomass fuel of claim 1 , wherein the dried biosludge solids have a water content less than 8%.6. The method for making a biosludge-based biomass fuel of claim 1 , wherein drying of the biosludge solids is conducted at ...

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Номер записи: 48
14-01-2016 дата публикации

METHOD AND APPARATUS FOR HYDROLYZING ORGANIC SOLID

Номер: US20160009584A1
Автор: CHANG Wang-Kuan, CHEN Shing, CHEN Shing-Der, CHOU Shan-Shan, Chu Chen-Hua, LIANG Teh-Ming
Принадлежит:

A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect. 1. A preprocessor for hydrolyzing an organic solid , applicable to an anaerobic digestion tank , wherein the anaerobic digestion tank has anaerobic microbes for generating a combustible gas , the preprocessor comprising:a nanobubble water generator, for making a plurality of nanobubbles by using a part of the combustible gas and mixing the nanobubbles with water to form a nanobubble water;a digestion tank, for accommodating an organic liquid, wherein the organic liquid contains an organic solid and the nanobubble water; andan ultrasonic wave generator, for generating an ultrasonic wave to the organic liquid in the digestion tank, such that the nanobubbles generate a cavitation effect.2. The preprocessor for hydrolyzing the organic solid according to claim 1 , wherein the combustible gas is a biogas.3. The preprocessor for hydrolyzing the organic solid according to claim 1 , wherein the combustible gas is methane claim 1 , hydrogen gas claim 1 , or a mixture thereof.4. The preprocessor for hydrolyzing the organic solid according to claim 1 , further ...

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Номер записи: 49
11-01-2018 дата публикации

APPARATUS FOR SALT SEPARATION UNDER SUPERCRITICAL WATER CONDITIONS

Номер: US20180009692A1
Автор: Favrat Daniel, Marechal François, Mian Alberto, Viana Ensinas Adriano
Принадлежит: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)

Apparatus for salt separation () under supercritical water conditions, comprising a heat exchanger () and a fluidized bed reactor (). The fluidized bed reactor comprising a supercritical water pressure containing wall () defining therein a fluidized bed chamber () connected to an inlet system () at one end thereof and an outlet system () configured to separate solids from supercritical fluid at another end thereof. The fluidized bed chamber receives a fluidized bed () therein and is configured to receive through the inlet system () a liquefied aqueous substance () for treatment in the fluidized bed chamber. The inlet system () comprises an inlet chamber () and a fluidization plate () positioned between the inlet chamber () and the fluidized bed chamber (). The fluidized bed chamber extends between the inlet system () and outlet system () and comprises an entry section () adjacent the inlet system (), an outlet section () adjacent the outlet system (), and a mid-section () extending between the entry section and the outlet section. The heat exchanger () extends along the fluidized bed chamber () and is configured to generate a decreasing temperature gradient in the fluidized bed chamber from the outlet section () to the entry section (), the temperature gradient in the outlet section and mid-section being supercritical for aqueous substances and being subcritical for aqueous substances in the entry section () adjacent the fluidization plate (). 19-. (canceled)10. Apparatus for salt separation under supercritical water conditions , comprising a heat exchanger and a fluidized bed reactor , the fluidized bed reactor comprising a supercritical water pressure containing wall defining therein a fluidized bed chamber connected to an inlet system at one end thereof and an outlet system configured to separate solids from supercritical fluid at another end thereof , the fluidized bed chamber receiving a fluidized bed therein and configured to receive through the inlet system a ...

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Номер записи: 50
11-01-2018 дата публикации

OPERATING METHOD FOR A BATCH PROCESS

Номер: US20180009721A1
Автор: BUCKLAND Gareth James, Sciberras Sean Neil, SPUNNER Kim, WALKER Lee Richard
Принадлежит: ANAECO LIMITED

An operating method for a batch process, the batch process comprising a plurality of operating phases and within each phase there is provided at least one operating mode, one of the modes of each phase being a standby mode or its equivalent, wherein a transition from a first phase to a second phase requires that the first phase be initialised to its standby mode or equivalent and upon completion of the phase change the second phase enters its standby mode or equivalent. 1. An operating method for a batch process , the batch process comprising a plurality of operating phases and within each phase there is provided at least one operating mode , one of the modes of each phase being a standby mode or its equivalent , wherein a transition from a first phase to a second phase requires that the first phase be initialised to its standby mode or equivalent and upon completion of the phase change the second phase enters its standby mode or equivalent , the operating phases further comprising alternating phases of aerobic and anaerobic treatment conducted in a single reactor.2. An operating method according to claim 1 , wherein valve and drive configurations of the standby modes or their equivalent in phases between which a transition occurs are substantially similar claim 1 , thereby allowing efficient progression from one phase to another.3. An operating method according to claim 1 , wherein the equivalent of the or each standby mode is a target configuration of valves and drives embedded within a distinct mode or within a sequence of modes or phases involved in a change from the first stage to the second stage.4. An operating method according to claim 1 , wherein the batch process is directed to the treatment of the organic fraction of mixed municipal solid waste.5. An operating method according to claim 1 , wherein the batch process is directed to the treatment of the organic fraction of mixed municipal solid waste claim 1 , the plurality of operating phases comprising the ...

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Номер записи: 51
14-01-2021 дата публикации

TREATMENT OF POLLUTED AQUEOUS LIQUIDS

Номер: US20210009449A1
Автор: Borowski Brian, RUEHL Paul
Принадлежит:

A method of treatment of aqueous liquid contaminated by pollutants, includes (i) mixing the contaminated aqueous liquid with a mineral binder in order to produce an homogeneous slurry, (ii) depositing the slurry, (iii) letting the slurry set and harden, wherein the mineral binder includes Portland cement, and wherein the contaminated aqueous liquid includes organic pollutants. 1. A method for treating an aqueous landfill leachate or an aqueous leachate concentrate contaminated by organic pollutants , comprising the steps of:(i) mixing the aqueous landfill leachate or the aqueous leachate concentrate with a mineral binder in order to produce a slurry consisting of the aqueous landfill leachate or the aqueous leachate concentrate, the mineral binder, and, optionally, water, the mineral binder comprising Portland Cement and a mineral component, the mineral component selected from cement kiln dust, lime dust, ground limestone, ground slag, fly ash, burnt oil shale, or a mixture thereof;(ii) depositing the, slurry on a waste pile; and(iii) letting the slurry set and harden.23.-. (canceled)4. The method according to claim 1 , wherein in step (ii) the slurry is sprayed.5. The method according to claim 1 , wherein steps (i) to (iii) are done at a landfill site.6. The method according to claim 1 , wherein the mixing step (i) is carried out in a batch process or continuously.7. The method according to claim 1 , wherein the organic pollutants comprise per- and polyfluoroalkyl substances.8. (canceled)9. The method according to claim 1 , wherein the aqueous leachate concentrate comprises between 5% and 30% claim 1 , inclusive claim 1 , by volume of a total volume of aqueous landfill leachate.10. The method of claim 9 , wherein the concentrate comprises between 10% and 20% claim 9 , inclusive claim 9 , by volume of the total volume of aqueous landfill leachate.11. The method according to claim 1 , wherein the aqueous landfill leachate is a sludge from wastewater treatment plants. ...

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Номер записи: 52
14-01-2021 дата публикации

High Solids Dissolved Air Flotation System and Methods

Номер: US20210009451A1
Автор: Argun Olcayto Erdogan, Michael L. Doyle
Принадлежит: Evoqua Water Technologies LLC

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.

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Номер записи: 53
14-01-2021 дата публикации

ORGANIC SLUDGE TREATMENT DEVICE AND TREATMENT METHOD

Номер: US20210009455A1
Автор: IZUMI Kazushi, KAMADA Kouji, Kimura Takayuki, Ueno Naoki, Yamamoto Yasushi
Принадлежит:

To treat organic sludge while keeping facility costs, cement production efficiency, and a reduction in clinker production amount to a minimum. An organic sludge treatment device includes: a fractionation device that fractionates a preheated raw material R from a preheater cyclone C excluding a bottommost cyclone of a cement burning device a mixing device that mixes an organic sludge S with the fractionated preheated raw material, and that dries the organic sludge using sensible heat of the preheated raw material; and a supply device (mixture chute double-flap damper shut damper ) that supplies a mixture M from the mixing device to a calciner furnace of the cement burning device or to a duct disposed between a kiln inlet portion of a cement kiln and the calciner furnace. The treatment device may be provided with an introduction device for introducing an exhaust gas G including dust, odor and water vapor from the mixing device to a gas outlet of a bottommost cyclone A of the cement burning device. 2. The organic sludge treatment device as claimed in claim 1 , further comprising an introduction device for introducing an exhaust gas including dust claim 1 , odor and water vapor from the mixing device to a gas outlet of a bottommost cyclone of the cement burning device.3. The organic sludge treatment device as claimed in claim 2 , further comprising a cyclone dust collector to which the exhaust gas including dust claim 2 , odor and water vapor is introduced from the mixing device claim 2 , and which recovers coarse powder and returns the recovered coarse powder to the mixing device and discharges an exhaust gas including fine powder claim 2 , odor and water vapor to the introduction device.4. The organic sludge treatment device as claimed in claim 1 , further comprising a urea supply device for supplying particulate urea to the mixing device.5. The organic sludge treatment device as claimed in claim 1 , wherein temperature of a mixture from an outlet of the mixing device ...

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Номер записи: 54
09-01-2020 дата публикации

SUPERCRITICAL OXIDATION OF WASTE

Номер: US20200010349A1
Автор: Mancuso Sophie, Stroud Matthew Brandon
Принадлежит:

Provided herein are methods, systems, and apparatuses for energy-efficient supercritical water oxidation of waste. The supercritical water oxidation processes and systems described herein may incorporate one or more of the following features: compression of large amounts of oxidant for plant-scale operations in an energy-efficient manner; the use of air as an oxidant; using reactor effluent to drive a turbine or other gas expander for energy recovery; and recovery of pressure and heat of reactor effluent. In some embodiments, the systems and methods are energy-neutral or energy-positive. 1. A system comprising:a compressor configured to compress an oxidant stream;a supercritical reactor configured to generate waste solids and a reactor effluent from an aqueous supercritical waste feed stream and the compressed oxidant stream; anda gas expander configured to be driven by at least a portion of the reactor effluent.2. (canceled)3. The system of claim 1 , wherein the compressor claim 1 , the supercritical reactor claim 1 , and the gas expander comprise a Brayton cycle engine.4. The system of claim 1 , further comprising a heat transfer loop configured to exchange heat between the compressor and the gas expander.5. The system of claim 1 , further comprising a gas/liquid separator configured to separate components of the reactor effluent to form a pressurized gas phase reactor effluent stream to drive the gas expander.6. The system of claim 5 , further comprising a heat exchanger configured to exchange heat between the reactor effluent and the pressurized gas phase reactor effluent stream to heat the pressurized gas phase reactor effluent stream.7. The system of claim 6 , wherein the gas expander is configured to be driven by the heated pressurized gas phase reactor effluent stream.8. The system of claim 6 , wherein the heat exchanger is a pressurized heat exchanger configured to exchange heat between a pressurized waste feed stream claim 6 , the reactor effluent claim 6 ...

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Номер записи: 55
15-01-2015 дата публикации

MODULAR WASTEWATER TREATMENT PLANT

Номер: US20150014245A1
Автор: Pérez Monsrreal José Rogelio
Принадлежит:

The invention relates to a wastewater treatment plant, specifically a modular plant for the treatment of organic wastewater, in which the number of devices depends on the amount of water to be treated and on the quality of the starting water and that required for the water at the end of the process. The treatment plant includes multiple devices, each representing a treatment step, and the devices can be connected in series, in parallel or in series and parallel. In addition, the devices used in the process are designed to require a minimum amount of maintenance, owing to the inclusion of a self-cleaning system. Since the system requires minimal power and maintenance, it is considered optimal for use in rural communities, livestock farms or buildings. 1. A waste water treatment plant which comprisesa) a tank to separate solids with upper feeding and lower discharge placed on opposite sides of the tank; or lateral discharge placed laterally to the feeding with a removable screen to be fitted in a tank to separate solids. A vertical anaerobic decanter bioreactor which has a cylindrical body that can have conical or vaulted ends, with an inner tank supported on the opening of the decanter bioreactor. This tank has a series of openings located at regular intervals on the perimeter of the low part of the wall of the inner tank to let the fluid move from the body of the decanter bioreactor to the output duct which is placed at a lower height than the feeding duct. It also has a self cleaning system for sludge which works by gravity, wherein the diameter of the feeding duct is bigger than the diameter of the discharge duct.', 'A vertical inverted anaerobic filter which has interior tanks with multiple perforations which let the fluid pass and which contain the filtering material and sludge separation. It also has a self cleaning system for sludge which works by gravity, where the extraction of the liquid is done in the upper part of the perforated tank by means of a ...

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Номер записи: 56
19-01-2017 дата публикации

METHOD FOR TREATING ORGANIC WASTE BY HYDROTHERMAL OXIDATION

Номер: US20170015578A1
Автор: Chaillou Mathieu, Richer Carine, Sarrail Grégoire
Принадлежит: INNOVEOX

The present invention relates to a method for treating waste comprising at least one organic phase, said method comprising the following consecutive steps: a) preparation of an oil-in-water emulsion with controlled TOD using waste to be treated comprising at least one organic phase, by mixing said waste with an aqueous phase in a mixer, preferably with high shear; b) possible adjustment of the TOD of the emulsion obtained in step a); and c) hydrothermal oxidation, under subcritical or supercritical starting conditions, of the emulsion thus obtained. The present invention also relates to a facility suitable for implementing the method for treating waste comprising at least one organic phase according to the invention. 2. The method according to claim 1 , wherein the emulsion obtained at the end of step a) or b) has an average drop size of less than 1 claim 1 ,000 μm.3. The method according to claim 1 , wherein the TOD of the oil-in-water emulsion obtained at the end of step b) is comprised between 20 and 400 g/L.4. The method according to claim 1 , wherein the aqueous phase of the emulsion in step a) comprises at least one surfactant claim 1 , representing less than 10% by weight claim 1 , based on the total weight of the aqueous phase.5. The method according to claim 4 , wherein the surfactant is non-ionic claim 4 , preferably selected from among polysorbates and nonylphenol ethoxylates.6. The method according to claim 4 , wherein the surfactant is mixed with the aqueous phase claim 4 , and then the waste to be treated comprising at least one organic phase is gradually incorporated in a mixer to said aqueous phase comprising the surfactant claim 4 , leading to the formation of the oil-in-water emulsion.7. The method according to claim 1 , wherein the steps a) and b) are conducted according to a batch-wise method.8. The method according to claim 1 , wherein the oxidizer used during step c) exclusively consists of dioxygen (O) or air claim 1 , or a mixture thereof.9. ...

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Номер записи: 57
17-01-2019 дата публикации

CAPACITATIVE ELECTROKINETIC DEWATERING OF SUSPENSIONS

Номер: US20190015785A1
Автор: YAZDANBOD Azaroghly
Принадлежит:

Capacitive electrokinetic densification, decontamination and dewatering of suspensions and soils can be performed while controlling and/or preventing chemical and pH changes in the densified material and extracted water. High electrical capacitance electrodes or Electric Double Layer Capacitor (EDLC) electrodes are used which can operate without redox reactions occurring on their surfaces until their developed voltage reaches the standard electrode potential of the electrode. Water-retaining, flexible covers for the EDLC electrodes have drainage and filtering capabilities and are made of a fabric which allows the passage of ions, water and electricity therethrough and facilitate continuous electrical contact between the EDLC electrode and the surrounding suspension. 1. A capacitive electrokinetic process for densifying solids and recovering water from colloidal suspensions without changes in chemical composition and pH of the densified material and the extracted water , the process comprising the steps of:a) providing an insulated container, the insulated container including at least one outlet drain line for removing water therefrom;b) providing an electric current power supply for generating an electric field through the suspension, wherein the power supply includes a positive pole and a negative pole and is capable of polarity reversal;c) providing at least one pair of high capacitance electric double-layer capacitor (EDLC) electrodes connected to opposite poles of the power supply, wherein each electrode of the at least one pair of EDLC electrodes has a specific capacitance of at least 1.0 farad per gram and is spaced apart from the other electrode within the insulated container;d) providing each EDLC electrode with an electrode cover for placement over the EDLC electrode, wherein each electrode cover is made of a fabric which allows the passage of ions, water and electricity therethrough and facilitates electrical contact between the EDLC electrode and the ...

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Номер записи: 58
21-01-2021 дата публикации

Immobilized microbial agent for in situ restoration of contaminated sediments, preparation method and application thereof

Номер: US20210017058A1
Автор: Beidou Xi, Chunzi MA, Jingtian ZHANG, Shouliang HUO, Xiaochuang LI
Принадлежит: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES

An immobilized microbial agent for in situ restoration of contaminated sediments, composed of Hangjin clay 2 #-loaded conductive microorganisms, obtained by the following methods: 1) pretreating Hangjin clay 2 #to obtain particulate filler; 2) amplification culture of conductive microorganisms to a bacterial liquid to be inoculated, and adding the Hangjin clay 2 #pretreated in step 1 in a certain ratio, mixing under anaerobic conditions, removing the supernatant after standing, and obtaining the immobilized microbial agent; the conductive microorganisms are Geobacter sulfurreducens, Geobacter metallireducens and Shewanella . The invention also discloses a method for preparing the immobilized microbial agent and the application of in situ restoration of contaminated sediments.

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Номер записи: 59
21-01-2021 дата публикации

WATER SEPARATION FROM PARTICULATE MATERIALS

Номер: US20210017061A1
Автор: Pham Michelle H., Roa-Espinosa Aicardo
Принадлежит:

A composition for solid pellets and a process for removing water from particulate material slurries produced by horizontal drilling, vertical drilling and dredging of bodies of water are disclosed. The composition comprises a precipitating agent, a purification agent and, optionally, a binding agent. The process comprises the steps of 1) water removal accomplished by diffusing a chemical reagent into the particulate material source stream that results in separating out a clean water fraction and 2) reacting the sludge with a demulsifier and a superabsorbent polymer that locks onto the water in the remaining slurry thus turning the slurry into a solid crust. The crust is ground into a particulate form and disposed in a landfill. The combined effect of the treatments is the thickening of the particulate material slurry from about 10% solids to about 25% solids. The removed water may be used for further drilling and drinking. 1. A process for removing water from a mixture of water and particulate material , said process comprising:providing a source stream containing a mixture of water and particulate material having a weight consistency of 5% to about 15%;a first step of treating said source stream with a first chemical reagent composition, said first step comprising diffusing said first chemical reagent composition into the source stream, said treating resulting in separating said source stream treated with the first chemical reagent composition into a first particulate material fraction and a first water fraction, the first particulate material fraction containing 70% to about 80% water;a second step of transforming the first particulate material fraction from a liquid form into a solid block form; anda third step of transforming the solid block into granular form, wherein the second step and third step of transforming the first particulate material fraction from a liquid form into a solid block form and then into granular form comprise:A. Feeding the first ...

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Номер записи: 60
22-01-2015 дата публикации

Organic containing sludge to fertilizer alkaline conversion process

Номер: US20150020560A1
Автор: Jeffery C. Burnham
Принадлежит: VitAG LLC

This invention is directed to systems, devices and methods for treating organic-containing sludges and converting such sludges to high value fertilizers containing both inorganic and organic fertilizer components, which creates an inorganically-augmented bioorganic fertilizer. The invention describes methods to create a thixotropic or paste-like material via the application of mixing energy to the organic sludge followed by an alkaline treatment and a subsequent ammoniation. The invention further describes a method to increase the plant nutrient content in the organic containing product to a level which permits the finished granular fertilizer product to compete in the commercial agricultural fertilizer marketplace. Further, the invention reduces odors associated with said organic-containing sludges.

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Номер записи: 61
28-01-2016 дата публикации

TREATMENT OF MUNICIPAL WASTEWATER WITH ANAEROBIC DIGESTION

Номер: US20160023935A1
Автор: BENEDEK Andrew, JOSSE Juan Carlos, Mourato-Benedek Diana
Принадлежит:

Low strength wastewater such as municipal sewage is treated using an anaerobic digester. In some examples, a wastewater stream is separated into a solids rich portion and a solids lean portion. The solids lean portion is treated, for example to remove nitrogen. The solids rich portion is treated in an anaerobic digester, preferably with influent or recuperative thickening. In another example, the wastewater stream is fed to an anaerobic digester and solid-liquid separation stages downstream of the digester return active bacteria and undigested organics to the digester. Both cases may use a process train comprising treatment in an anoxic tank followed by a nitritation tank with a portion of the effluent from the nitritation tank recirculated to the anoxic tank to provide nitritation and denitritation. 1. A process for treating a low strength wastewater comprising the steps of ,a) treating the wastewater with a primary treatment to produce a primary effluent and a primary sludge;b) treating the primary effluent by a secondary treatment to produce an effluent and a secondary sludge;c) treating the primary sludge and a thickened portion of the secondary sludge in an anaerobic digester; and,d) maintaining a solids content of 4% or more dry solids in the anaerobic digester by way of recuperative thickening or the addition of a co-digestion waste.2. A process comprising the steps of ,feeding primary or secondary sludge, or a mixture of both, to an anaerobic digester; and,maintaining a solids content of 4% or more dry solids in the anaerobic digester by way of recuperative thickening.3. The process of comprising claim 2 , withdrawing digestate claim 2 , adding a polymer to the digestate claim 2 , thickening the digestate claim 2 , and returning thickened digestate to the digester.4. The process of further comprising wasting sludge from the digester.5. The process of comprising feeding the digester with sludge at a total solids concentration of 1-5%.6. The process of wherein ...

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Номер записи: 62
26-01-2017 дата публикации

PROCESS FOR TREATMENT OF SEWAGE SLUDGE

Номер: US20170022081A1
Автор: Buckholtz Harry
Принадлежит:

A method for pathogen destruction in dilute sewage sludge or other dilute streams containing pathogens, including Helminth ova, while minimizing vapor generation and atmospheric emissions. In addition to conventional waste treatment steps, including grit removal, clarification, and concentration of waste material, vaporized waste treatment compounds are recycled to treat divert untreated waste in a scrubber. In the scrubber, waste material is treated while also acting as a reactive agent to scrub potentially hazardous or noxious gas, particularly gaseous MITC, from the treatment system. Recycling of vaporized treatment compounds provides a reduction of potentially toxic emissions and increased efficiency during treatment. 1) A waste treatment method comprising:providing a fluid stream of a waste material into a waste treatment system;diverting an ancillary portion of the waste material to a scrubber;providing a primary portion of the fluid stream of the waste material to a mixing reaction vessel;adding an MITC generating compound to the mixing reaction vessel;mixing a combined material comprising the primary portion of the waste material and the MITC generating compound in the mixing reaction vessel for a period of time sufficient to distribute MITC generating compound throughout the primary portion of the waste material;providing a mixed material comprising the MITC generating compound and the primary portion of the waste material to a holding tank;adding an alkaline compound sufficient to raise the pH of the mixed material in the holding tank;incubating the mixed material in said holding tank at an increased pH for a period of time sufficient to generate a treated material from the mixed material by substantially killing pathogens not previously destroyed by the MITC;providing a holding tank off-gas line to route a holding tank MITC vapor from the holding tank to the scrubber;providing the treated material to an MITC removal tank;providing an MITC removal tank off ...

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Номер записи: 63
26-01-2017 дата публикации

Production of biogas from organic materials

Номер: US20170022522A1
Автор: Juan Carlos Josse, Marcelo De Lima Vasconcellos
Принадлежит: Anaergia Inc

Waste or organic material is compressed at a pressure sufficient to burst cells, for example 50 bar or more, and separated into a dry fraction and a wet fraction. The wet fraction is treated in an anaerobic digester to produce biogas after removing grit. The wet fraction is diluted, preferably with sludge, before it is degritted. Optionally, floatables are removed from the fraction before it is added to the digester.

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Номер записи: 64
25-01-2018 дата публикации

OPTIMISATION OF A PULP TREATMENT METHOD

Номер: US20180022626A1
Автор: Pardo Pierre Emmanuel, VANDEN BOSSCHE Hugues
Принадлежит:

Disclosed is a method for treating pulp, particularly a method for treating sludge from wastewater treatment plants, for producing energy and/or organic materials that have undergone hygienization, including at least the following steps: a step of aerated or non-aerated thermal hydrolysis of the pulp, a digestion step, a dehydration step and a step of recirculating part of the dehydrated pulp into the step of thermal hydrolysis. 1. A method for treating pulp , in particular a method for treating purification plant sludge , for producing energy and/or organic matter that has been rendered hygienic , comprisingi. a step of aerated or non-aerated thermal hydrolysis of the pulp,ii. optionally a step of dilution of the pulp hydrolyzed in step i),iii. a digestion step of mesophilic or thermophilic type either of the pulp hydrolyzed in step i), or of the pulp hydrolyzed and diluted in step ii),iv. a step of dehydration of the pulp resulting from the step iii) andv. a step of recirculation of part of the dehydrated pulp resulting from step iv) to the thermal hydrolysis step i).2. The method as claimed in claim 1 , further comprising a step of calculation of the degree of loading of the thermal hydrolysis i) or of the digestion step ii) or of both.3. The method as claimed in either claim 1 , wherein the part of the dehydrated pulp resulting from step iv) which is recirculated to the thermal hydrolysis step i) is controlled by the degree of loading in order to keep it as constant as possible and close to 1.4. The method as claimed in claim 1 , further comprising a step of injection of base or of acid before the thermal hydrolysis step i) in order to control the pH during the digestion step ii) and to increase the hydrolysis during step i).5. The method as claimed in claim 4 , wherein several hydrolysis reactors are operating and for which the injection of base or of acid is carried out exclusively in one of the reactors in order to greatly increase the hydrolysis in this ...

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Номер записи: 65
25-01-2018 дата публикации

APPARATUS FOR LIFTING LIQUID IN A BODY OF LIQUID

Номер: US20180022627A1
Автор: Vlahogeorge John T.
Принадлежит:

An apparatus to lift liquid from a reservoir of liquid and aerate the liquid. A downwardly opening enclosure has an inlet for liquid to flow from a reservoir into the enclosure. The enclosure includes a channel for the liquid to flow upward. An inner cone within an outer cone forms a gas chamber connected to an external gas compressor. Holes in the gas chamber walls allow the gas to flow into the channel and aerate the liquid which is returned to the reservoir. 1. A device for forcing water upwardly from a reservoir of water with the reservoir having a floor comprising:a downwardly opening enclosure forming a first water lift cavity resting atop a floor of a reservoir of water, said enclosure having a water inlet for water from the reservoir to flow into said cavity and further having a water outlet;a source of pressurized gas having a first gas outlet opening into said cavity and forcing water in said cavity to move upward to said water outlet of said enclosure;a truncated cone shaped structure located above said enclosure, said structure having an inwardly facing surface forming a second water lift cavity with a bottom portion, said water outlet of said enclosure opens into said bottom portion of said second water lift cavity, said source of pressurized gas having a second gas outlet in fluid communication with said second water lift cavity; and,a water accelerator located in said second water lift cavity above said water outlet and restricting the size of said second water lift cavity forming a water flow channel therebetween and cooperatively with said source of pressurized gas accelerating water flow upwardly through said channel.2. The device of wherein:said water accelerator includes a pair of conical shaped potions with bases arranged in back to back fashion.3. The device of wherein said water accelerator has downwardly converging surfaces facing toward said water outlet of said enclosure directing water flowing from said outlet in between said accelerator ...

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Номер записи: 66
24-01-2019 дата публикации

WASTEWATER TREATMENT PROCESS AND PLANT

Номер: US20190023593A1
Автор: DOMENJOUD Bruno, GONZALEZ OSPINA Adriana
Принадлежит:

Disclosed is a wastewater treatment process including at least one step of biological oxidation in a biological treatment unit, wherein ozone and an adsorbent compound are introduced, the ozonation and the adsorption each at least being induced upstream of the biological treatment unit, or else in the biological treatment unit, or else downstream of the biological treatment unit, knowing that downstream of the biological treatment unit at most either the introduction of ozone, or the introduction of the adsorbent compound is carried out. Also disclosed is a plant for implementing the process. 11010101010. A wastewater treatment process comprising at least one biological oxidation step in a biological treatment unit () , wherein ozone (O3) and an adsorbent compound (PAC) are introduced , said ozonation and said adsorption being each induced at least , upstream of the biological treatment unit () , or in the biological treatment unit () , or downstream of the biological treatment unit () , given that downstream of the biological treatment unit () , at most either the ozone introduction , or the adsorbent compound introduction is performed.2101010. The wastewater treatment process according to claim 1 , wherein downstream of the biological treatment unit () claim 1 , no ozone or adsorbent compound introduction is performed claim 1 , such that the ozone and the adsorbent compound are each respectively introduced either upstream of the biological treatment unit () claim 1 , or in the biological treatment unit ().3. The wastewater treatment process according to claim 1 , wherein the adsorbent compound introduction is carried out downstream of the ozone introduction.4. The wastewater treatment process according to claim 1 , wherein the adsorbent compound includes grain or micro grain powdered activated carbon.5. The wastewater treatment process according to claim 1 , the ozone is introduced in proportions ranging from 0 to 25 mg/L.6. The wastewater treatment process ...

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Номер записи: 67
29-01-2015 дата публикации

SYNGAS BIOMETHANATION PROCESS AND ANAEROBIC DIGESTION SYSTEM

Номер: US20150027179A1
Автор: BENEDEK Andrew, JOSSE Juan Carlos
Принадлежит:

An anaerobic digester is fed a feedstock, for example sludge from a municipal wastewater treatment plant, and produces a digestate. The digestate is dewatered into a cake. The cake may be dried further, for example in a thermal drier. The cake is treated in a pyrolysis system to produce a synthesis gas and biochar. The gas is sent to the same or another digester to increase its methane production. The char may be used as a soil enhancer. 1. A process comprising steps of ,a) producing a synthesis gas from pyrolysis of a feedstock; and,b) adding the synthesis gas to an anaerobic digester.2. The process of wherein the feedstock comprises one or more of a raw biomass claim 1 , wood claim 1 , municipal yard waste claim 1 , municipal solids waste claim 1 , primary sludge from a wastewater treatment plant claim 1 , waste activated sludge from a wastewater treatment plant or an agricultural waste or residue.3. The process of wherein the feedstock comprises digestate.4. The process of wherein the digestate is produced by the anaerobic digester.5. The process of wherein the anaerobic digester is coupled with or part of a municipal wastewater treatment plant claim 1 , or an agricultural or industrial digester.6. The process of wherein the synthesis gas is cooled before it is fed to the digester.7. The process of wherein condensable organic compounds are removed from the synthesis gas and returned as feedstock to step a).8. An apparatus for transferring syngas to digestate comprising claim 1 ,a) a pipe between a source of digestate and a digester;b) a pump to create a flow of digestate in the pipe;c) an ejector, microbubble pump or gas transfer membrane in communication with pipe having an inlet connected to a source of the syngas.9. The apparatus of wherein the source of digestate is the digester.10. The apparatus of wherein the pipe is connected to multiple outlets in the digester.11. The apparatus of wherein the inlet is further connected to the headspace of the digester.12. ...

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Номер записи: 68
02-02-2017 дата публикации

PROCESS FOR THE ANAEROBIC FERMENTATION OF BIOGENIC WASTE MATERIALS AND PLANT FOR CARRYING OUT THIS PROCESS

Номер: US20170029309A1
Автор: LEISNER Rene, SCHATZ Adrian
Принадлежит: HITACHI ZOSEN INOVA AG

A process for the anaerobic fermentation of biogenic waste materials including the steps that a fermentation material containing the waste materials is mixed with liquid and the fermentation material suspension obtained in this manner is anaerobically fermented in a fermenter and the digest produced in the fermentation of the fermentation material suspension is dewatered of a dewatering device, wherein, with separation of press water, a press cake is obtained that has a dry matter proportion increased with respect to the digest; the press water is subjected to a solids separation, wherein a residual liquid having a dry matter proportion reduced with respect to the press water of at most 15% by weight is obtained and the residual liquid is used at least in part for the mixing according to the fermentation material step. 1. A process for the anaerobic fermentation of biogenic waste materials comprising the steps thata) a fermentation material containing the waste materials is mixed with liquid and the fermentation material suspension obtained in this manner is anaerobically fermented in a fermenter andb) the digest produced in the fermentation of the fermentation material suspension is dewatered by means of a dewatering device, wherein, with separation of press water, a press cake having a dry matter proportion increased with respect to the digest is obtained,wherein the process comprises the additional steps thatc) the press water is subjected to a solids separation, wherein a residual liquid having a dry matter proportion reduced with respect to the press water of at most 15% by weight is obtained andd) the residual liquid is used at least in part for the mixing according to step a).2. The process as claimed in claim 1 , wherein it is carried out continuously or semi-continuously.3. The process as claimed in claim 1 , wherein the solids separation according to step c) is performed by means of filtration and/or by means of screening claim 1 , in particular using a ...

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Номер записи: 69
02-02-2017 дата публикации

SYSTEM AND METHOD FOR IMPROVED ANAEROBIC DIGESTION

Номер: US20170029310A1
Автор: Barry Christopher J
Принадлежит: Verliant Energy, Inc.

A method for improved anaerobic digestion is presented. The method includes mixing a volume of waste material with water to form a feedstock mixture. The volume of waste material includes an initial amount of biomass and the feedstock mixture includes methanogenic bacteria either naturally present in the waste material or introduced artificially. The method also includes introducing one or more promoter substances to the feedstock mixture. The one or more promoter substances are capable of modifying the methanogenic bacteria. Modifying includes stimulating novel enzyme production in the methanogenic bacteria. 1. A method for improved anaerobic digestion , the method comprising:Mixing a volume of waste material with water to form a feedstock mixture, the volume of waste material including an initial amount of biomass, the feedstock mixture including methanogenic bacteria either naturally present in the waste material or introduced artificially; andIntroducing one or more promoter substances to the feedstock mixture, the one or more promoter substances being capable of modifying the methanogenic bacteria, wherein modifying includes stimulating novel enzyme production in the methanogenic bacteria.2. The method of claim 1 , including removing large solids from the feedstock mixture.3. The method of claim 2 , including collecting renewable energy or biochemical co-products generated from digestion of the waste material in the feedstock mixture.4. The method of claim 3 , wherein the biochemical co-products include fertilizer claim 3 , vitamins claim 3 , or proteins.5. The method of claim 1 , wherein the methanogenic bacteria or the waste stream claim 1 , or both claim 1 , are pre-treated with a solution of enzymes before any anaerobic digestion processes occur.6. The method of claim 1 , wherein stimulating novel enzyme production includes increasing the expression rate of already expressed genes to a level statistically significantly higher than that of methanogenic ...

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Номер записи: 70
01-05-2014 дата публикации

Apparatus and method for sewage sludge treatment and advanced sewage treatment

Номер: US20140116937A1
Автор: Jae Shik Chung, Kyo Bum Kim, Kyu Won Seo, Yong Bae Park, Yong Su Choi
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

A sludge treatment apparatus includes an aeration tank serving to degrade microorganisms other than Bacillus sp. in sludge to produce organic matter to thereby activate Bacillus sp.; a poor aeration tank serving to reduce the activity of microorganisms in the sludge; a spore-forming tank operated under oxygen-free conditions and serving to induce the degradation and death of microorganisms remaining in the sludge while inducing the formation of spores of Bacillus sp.; a Bacillus sp.-activating reactor provided in an internal return line extending from the spore-forming tank to the aeration tank and serving to supply minerals to the sludge returned from the spore-forming tank to activate spore-type Bacillus sp.; and a sedimentation tank serving to induce the gravity sedimentation of the sludge discharged from the spore-forming tank to separate the discharged sludge into a supernatant and a concentrated sludge.

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Номер записи: 71
05-02-2015 дата публикации

SYSTEM FOR TREATING WATER AND/OR WASTEWATER HAVING A PLURALITY OF LATERALS THAT CAN BE READILY CLEANED WITHOUT DAMAGING OR SACRIFICING THE LATERALS

Номер: US20150034548A1
Автор: Jackson Troy A., Roberts R. Lee
Принадлежит: Roberts Marketing DE, Inc.

A plurality of laterals operably associated with a treatment unit for treating water and/or wastewater. The plurality of laterals can form many systems including a sludge removal system and a fluid scour system. The treatment unit can take many forms including but not limited to a filter and a sludge collection basin. Preferably, each of the plurality of laterals has a hollow passageway for permitting at least one of a fluid and a material to flow through each of the plurality of laterals. Each of the plurality of laterals includes means for permitting cleaning of a corresponding lateral to remove one or more obstructions obstructing the flow of one of a fluid and a material through at least a portion of the hollow passageway without damaging or altering the corresponding lateral. Preferably, the means for cleaning is configured to seal an opening in the corresponding lateral. 1. A system for treating water or wastewater , said system comprising:(a) a treatment unit for treating at least one of water and wastewater; and(b) a plurality of laterals operably associated with said treatment unit, each of said plurality of laterals having a hollow passageway for permitting at least one of a fluid and a material to flow through each of said plurality of laterals, each of said plurality of laterals including means for permitting cleaning of a corresponding lateral to remove one or more obstructions obstructing the flow of one of a fluid and a material through at least a portion of the hollow passageway without damaging or altering the corresponding lateral, said means for cleaning being configured to seal an opening in the corresponding lateral.2. A system as recited in claim 1 , wherein:(a) said treatment unit includes a sludge collection basin; and,(b) said plurality of laterals form at least a portion of a sludge removal system for removing sludge from the sludge collection basin.3. A system as recited in claim 1 , wherein:(a) said treatment unit is a filter having at ...

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Номер записи: 72
05-02-2015 дата публикации

System that provides economical purification of wastewater and recirculation of potable water and generation of electricity

Номер: US20150034568A1
Автор: William E. Coleman
Принадлежит: Individual

Water purification and recycling system that generates electricity and has a large reservoir and a small reservoir that provides potable water to a water user structure. After use by the water user structure, wastewater is applied from said water user structure via at least one wastewater path to wastewater treatment apparatus. The wastewater treatment apparatus receives and processes the wastewater using a power plant that operates continuously to produce steam. The wastewater treatment apparatus is also powered by a co-adjuvant gas turbine generator is adapted to generate supplemental steam for the power plant.

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Номер записи: 73
04-02-2021 дата публикации

METHOD AND DEVICE FOR TREATING WATER-CONTAINING SUBSTANCE

Номер: US20210032145A1
Автор: Chen Rui, HE Lu, Liu Chunjie, XIA Jiyang, Zhang Weihua
Принадлежит:

A method for treating a water-containing substance, including: mixing a water-containing substance with a solvent at a first temperature to obtain a mixture containing a solid substance and a liquid substance; conducting a first separation treatment of the mixture to obtain the solid substance and the liquid substance; and conducting a second separation treatment of the liquid substance obtained by the first separation treatment at a second temperature to obtain an aqueous phase and an organic phase, the organic phase contains the solvent. The mutual solubility of the solvent and water at the first temperature is higher than that of the solvent and water at the second temperature, so that the separation and recovery of water is achieved by liquid-liquid separation without phase transition in the method for treating a water-containing substance, so the energy consumption can be effectively reduced. The invention further relates to a corresponding device. 1. A method for treating a water-containing substance , comprising:mixing a first water-containing substance with a solvent at a first temperature to obtain a mixture containing a solid substance and a liquid substance, wherein the liquid substance contains the solvent and water;conducting a first separation treatment of the mixture to respectively obtain the solid substance and the liquid substance; andconducting a second separation treatment of the liquid substance at a second temperature to respectively obtain an aqueous phase and an organic phase, wherein the organic phase contains the solvent,wherein, mutual solubility of the solvent and water at the first temperature is higher than the mutual solubility of the solvent and water at the second temperature.2. The method according to claim 1 , wherein the solvent comprises alcohols claim 1 , phenols claim 1 , ethers claim 1 , amines claim 1 , ketones or any combination thereof.3. The method according to claim 1 , wherein the first temperature is in a range of from ...

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Номер записи: 74
04-02-2021 дата публикации

COMPOSITIONS AND METHOD FOR WASTEWATER TREATMENT

Номер: US20210032146A1
Автор: Kelley Douglas G.
Принадлежит:

Compositions, systems, and methods of using alkaline-producing Aluminate salts in the sludge collection and digestion steps of wastewater processing to reduce acidity and/or build alkalinity, reduce hydrogen sulfide release, and reduce phosphate in the effluent. 1. A method of reducing gaseous H2S production from anaerobic waste water sludge comprising: adding an effective amount of an alkaline form of an aluminum containing chemical to a waste water sludge.2. A method of further comprising where the alkaline aluminum-containing chemical is selected from the group of aluminum hydroxide claim 1 , sodium aluminate claim 1 , potassium aluminate claim 1 , and mixtures thereof.3. A method of further comprising where the alkaline aluminum-containing chemical is mixed with at least one other chemical claim 2 , wherein the at least one other chemical is selected from the group of sodium hydroxide and potassium hydroxide.4. A method of further comprising where the addition of an effective amount of an alkaline form of an aluminum containing chemical occurs at a feed point claim 1 , and further wherein the feed point is into a influent stream claim 1 , wherein the influent stream introduces new sludge into an anaerobic digester.5. A method of further comprising where the addition of an effective amount of an alkaline form of an aluminum containing chemical occurs at a feed point claim 1 , and further wherein the feed point is into a recirculation stream that recirculates the sludge within an anaerobic digester.6. A method of further comprising where there exists at least a second feed point for the alkaline form of an aluminum-containing chemical claim 4 , and wherein the at least second feed point feeds into a recirculation stream that recirculates the sludge within an anaerobic digester.7. A method of further comprising the addition of one or more additional alkaline substances to the waste water sludge selected from the group of magnesium hydroxide claim 1 , magnesium ...

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Номер записи: 75
04-02-2021 дата публикации

COMPOSITE DECALCIFICATION AGENT

Номер: US20210032147A1
Автор: GAN Peng, PENG Ling, QIN Chengrong, WANG Shuangfei, Wang Zhiwei, Zhang Jian, Zhao Shanshan
Принадлежит:

Embodiments of the present invention pertain to a composite decalcification agent of calcified anaerobic granular sludge and a decalcification regeneration process. 1. A calcified anaerobic granular sludge , comprising:a composite decalcification agent comprising 40% to 85% phosphoric acid, 10% to 25% sodium tripolyphosphate, and 1 to 10% sodium lignosulfonate by a mass fraction, configured to remove calcium to maintain activity of the anaerobic granular sludge, whereinthe composite decalcification agent is further configured to supply anions inhibiting calcium precipitation from arranging on a regular lattice through lattice distortion and dispersion, forming loose and fluffy amorphous calcium scale.2. The composite decalcification agent of claim 1 , wherein the 40% to 85% phosphoric acid claim 1 , 10% to 25% sodium tripolyphosphate claim 1 , and 1 to 10% sodium lignosulfonate is mixed and dissolved in water to produce an aqueous solution claim 1 , whereinthe aqueous solution prepares the composite decalcification agent for the calcified anaerobic granular sludge.3. The composite decalcification agent of claim 2 , wherein the composite decalcification agent is applied in an anaerobic treatment of high-calcium wastewater reducing a calcification degree of anaerobic granular sludge claim 2 , thereby realizing a decalcification regeneration of calcified sludge.4. The composite decalcification agent of claim 3 , whereinthe high-calcium wastewater comprises wastepaper pulping wastewater, food processing wastewater, landfill leachate, and/or fermentation wastewater.5. A process for decalcification and regeneration of a composite decalcification agent of calcified anaerobic granular sludge claim 3 , the process comprising:adding a predefined amount of the composite decalcification agent to influent of an anaerobic reactor according to a mass ratio of calcium to phosphorus in a treatment system of anaerobic granular sludge for highly calcified wastewater, whereinthe mass ...

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Номер записи: 76
04-02-2021 дата публикации

BIOSOLID TREATMENT PROCESS AND SYSTEM

Номер: US20210032552A1
Автор: Mooney David
Принадлежит: Ecoremedy LLC

A biosolids treatment system that treats human biosolids to produce thermal energy for self-consumption for the production of beneficial use products including low carbon ash, high carbon activated biochar, and Class A biosolids. The system includes a variable feed conveyor that conveys a biosolid feed into a dryer; a dryer that dries the biosolid feed to a predetermined moisture content to create one of a beneficial use products, where the predetermined moisture content is controlled by varying the speed of variable feed conveyors and a variable feed mixer; and a gasifier that converts the biosolid feed into two of the beneficial use products. 1. A biosolids treatment system that treats human biosolids to produce beneficial use products including low carbon ash , high carbon activated biochar , and Class A biosolids , the system comprising:a variable feed conveyor that conveys a biosolid feed into a dryer;a dryer that dries the biosolid feed to a predetermined moisture content to create one of a beneficial use products, wherein the predetermined moisture content is controlled by varying a speed of the variable feed conveyor; anda gasifier that converts the biosolid feed into usable thermal energy for system use and at least one of the beneficial use products.2. The biosolids treatment system of claim 1 , wherein the dryer creates low carbon ash and the gasifier creates high carbon activated biochar and Class A biosolids.3. The biosolids treatment system of claim 1 , wherein the treatment system includes a blended air intake to temper flue gas entering a dryer claim 1 , wherein the blended air controls a target temperature in the dryer.4. The biosolids treatment system of claim 1 , wherein the treatment system includes a fan to recirculate moist dryer exhaust to temper flue gas entering a dryer claim 1 , wherein the blended air controls a target temperature in the dryer and reduces NOx emissions.5. The biosolids treatment system of claim 1 , wherein the system is ...

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Номер записи: 77
11-02-2016 дата публикации

APPARATUS FOR REMOVING MATERIAL FROM A BODY OF LIQUID

Номер: US20160039699A1
Автор: Vlahogeorge John T.
Принадлежит:

An apparatus for removing sludge from a reservoir of liquid. A downwardly opening enclosure is positioned atop the floor of a reservoir with the enclosure having inlets for sludge and liquid to flow into the cavity of the enclosure. Gas emitters on the opposite edge portions of the enclosure assist the flow of sludge and liquid into the cavity which is slanted upwardly towards an outlet having a lift pump for pulling the sludge and liquid from the enclosure. An optional additional passage leading from the cavity to a holder beneath the enclosure receives heavy sludge falling there through. 1. An apparatus for removing sludge from a reservoir of liquid having a reservoir floor comprising:an elongated and downwardly opening enclosure having length with a first end and a second end and forming a cavity with an edge portion extending along the length of said enclosure;means on said enclosure and said edge portion forming inlets between said enclosure and said floor for sludge and liquid in said reservoir to flow into said cavity;gas emitters extending along the length of said edge portion operable to emit gas into said cavity of said enclosure drawing liquid and sludge via said inlets into said cavity;an outlet leading from said cavity for liquid and sludge to flow out of said enclosure; and,a liquid pump connected to said outlet to move said liquid and sludge from said cavity.2. The apparatus of wherein said enclosure has opposite edge portions and further comprising:a flow direction device positioned within said cavity between said edge portions directing the liquid and sludge upwardly within said cavity.3. The apparatus of wherein:said enclosure has a first end and an opposite second end, said cavity slopes upward from said first end of said enclosure to said opposite second end of said enclosure whereat said outlet is located, said liquid pump is connected to said outlet which is a conduit leading from said cavity to external of said reservoir of liquid.4. The ...

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Номер записи: 78
24-02-2022 дата публикации

SEWAGE TREATMENT EQUIPMENT APPLICABLE TO DOMESTIC SEWAGE TREATMENT OF MULTIPLE HOUSEHOLDS

Номер: US20220055929A1
Автор: Chen Guangming, JIANG Mingjie, LIAO Wenyun, LIU Shuang, Zhou Dong
Принадлежит:

A sewage treatment apparatus comprises an external box body internally being provided with an anaerobic zone, an aerobic zone, a settling zone, a sewage reduction zone and an apparatus zone separated from each other, wherein the anaerobic zone, the aerobic zone, the settling zone and the sewage reduction zone communicate in sequence, the anaerobic zone communicates with a septic tank, the aerobic zone communicates with the anaerobic zone to reflux a part of mixed liquid to the anaerobic zone, the settling zone communicates with the anaerobic zone to reflux a part of active sludge to the anaerobic zone, and the sludge reduction zone communicates with the anaerobic zone or the septic tank; and the apparatus zone is internally provided with a detection unit for detecting various parameters during a sewage treatment process and a controller for controlling working states according to a detection result of the detection unit. 1. A sewage treatment apparatus suitable for multi-household domestic sewage treatment for integrated treatment of household sewage discharged by a plurality of residences ,comprising an external box body, the external box body being internally provided with an anaerobic zone, an aerobic zone, a settling zone, a sewage reduction zone and an apparatus zone separated from each other,wherein the anaerobic zone, the aerobic zone, the settling zone and the sewage reduction zone communicate in sequence, the anaerobic zone communicates with a septic tank, the aerobic zone communicates with the anaerobic zone to reflux a part of mixed liquid to the anaerobic zone, the settling zone communicates with the anaerobic zone to reflux a part of active sludge to the anaerobic zone, and the sludge reduction zone communicates with the anaerobic zone or the septic tank; andthe apparatus zone is internally provided with a detection unit for detecting various parameters during a sewage treatment process and a controller for controlling working states of various sewage ...

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Номер записи: 79
24-02-2022 дата публикации

POSITIVE POLYMER FECAL SLUDGE TREATMENT APPARATUS

Номер: US20220055934A1
Автор: Lin Yongzhu
Принадлежит:

A positive polymer fecal sludge treatment apparatus comprising a trash separator, one end of which is connected with a sludge inlet, and the other end of which is connected with a twin-rotor vacuum water pump. A high-pressure transparent tube is disposed and connected, by a knife valve, between the trash separator and the twin-rotor vacuum water pump. One end of the knife valve is connected with a first material box and a second material box. A first chemical box and a second chemical box are disposed under the first material box and the second material box, and each of the first material box and the second material box is connected with the first chemical box and the second chemical box. The first and second material boxes have a larger volume than a conventional one and thus can store more material and also can perform chemical stirring reaction directly. 1. A positive polymer fecal sludge treatment apparatus , wherein the apparatus comprises a trash separator , which is connected with a sludge inlet at a first end and a twin-rotor vacuum water pump at a second end; wherein a transparent tube is disposed and connected , through at least one knife valve , between the trash separator and the twin-rotor vacuum water pump; wherein one end of the at least one knife valve is connected with a first material box and a second material box; wherein a first chemical box and a second chemical box are disposed under the first material box and the second material box respectively; wherein each of the first material box and the second material box is connected with the first chemical box and the second chemical box respectively; wherein the first material box and the second material box are further connected with a mixing box; wherein one end of the mixing box is connected to the first chemical box and the other end of the mixing box is connected to a multi-disk screw press and a wastewater outlet; and wherein the multi-disk screw press is connected to a sludge outlet.21201. The ...

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Номер записи: 80
07-02-2019 дата публикации

MULTIFUNCTION REACTOR

Номер: US20190039036A1
Автор: ALESSI MARIALAURA, BRUCATO ALBERTO, CAPUTO GIUSEPPE, GATTUSO CALOGERO, GRISAFI Franco, MINELLI GIANLUCA, RIZZO ROBERTO, SANTORO Fabio, SCARGIALI Francesca, TUZZOLINO GAETANO
Принадлежит:

Described herein is a reactor () includes: 11. A reactor () including:{'b': '1', 'a first reaction volume (V),'}{'b': '2', 'a second reaction volume (V),'}wherein:{'b': 1', '1', '1, 'the first reaction volume (V) is in fluid communication with an inlet port for an oxidizer agent (OX_TN), an inlet port for at least one first reactant (R_IN) and an outlet port for at least one reaction product (P_OUT),'}{'b': 2', '2', '2', '1, 'said second reaction volume (V) is in fluid communication with an inlet port for at least one second reactant (R_IN), an outlet port for at least one second reaction product (P_OUT) and is furthermore in thermal exchange relationship with said first reaction volume (V),'}{'b': 1', '2', '1', '2, 'wherein, during operation, in said first reaction volume (V) an oxidation reaction occurs between said at least one first reactant and said oxidizer agent with the formation of said at least one first reaction product, and in said second reaction volume (V) a gasification reaction occurs of said second reactant with the contribution of a thermal energy flow exchanged between the first and the second reaction volumes (V, V) with formation of said at least one second reaction product.'}21. The reactor () according to claim 1 , wherein said oxidation reaction is a supercritical water oxidation reaction claim 1 , while said gasification reaction is a supercritical water gasification reaction.311221. The reactor () according to claim 1 , wherein said first reaction volume (V) and said second reaction volume (V) are arranged concentric with one another claim 1 , in particular said second reaction volume (V) is arranged around said first reaction volume (V).41. The reactor () according to claim 1 , wherein the flow of said at least one reactant is in counter-current with respect to the flow of said at least one second reaction product claim 1 , and wherein the flow of said at least one second reactant is in counter-current with the flow of said at least one ...

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Номер записи: 81
07-02-2019 дата публикации

Process For Treating Wastewater

Номер: US20190039932A1
Автор: Flannery Christopher Curtis
Принадлежит: NOVOZYMES A/S

Methods are provided for reducing or eliminating the amount of exogenous carbon sources added to wastewater or sludge thereof by the addition of a hydrolytic enzyme to primary or secondary sludge of wastewater wherein said hydrolytic enzyme enhances the hydrolysis and subsequent fermentation of the sludge, thereby generating more carbon sources in situ 1. A method of treating wastewater comprising the use of a hydrolytic enzyme characterized in that the hydrolytic enzyme generates a carbon source when contacted with primary or secondary sludge.2. An in situ carbon source generation for phosphorous and nitrogen removal in wastewater in a municipal or industrial wastewater treatment process , comprising the addition of a hydrolytic enzyme to primary or secondary sludge for the in situ carbon source generation.3. A method of increasing the carbon source in sludge water in a municipal or industrial wastewater process comprising the use of a hydrolytic enzyme wherein the hydrolytic enzyme is characterized in that the enzyme causes the in situ generation of carbon sources.4. A method of reducing or eliminating the amount of exogenous carbon sources added to wastewater or sludge thereof by the addition of a hydrolytic enzyme to primary or secondary sludge of wastewater wherein said hydrolytic enzyme enhances the hydrolysis and subsequent fermentation of the sludge , thereby generating more carbon sources in situ.5. A method for treating wastewater , comprising(a) directing the wastewater to and through a primary clarifier to separate organic compound-containing wastewater and primary sludge;(b) directing the organic compound-containing wastewater to an anaerobic treatment zone and/or an anoxic treatment zone and/or aerobic treatment zone; and(c) directing the wastewater through the anaerobic treatment zone and/or the anoxic treatment zone and/or aerobic treatment zone to a secondary clarifier to separate purified supernatant and secondary sludge;wherein the primary sludge ...

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Номер записи: 82
06-02-2020 дата публикации

METHOD FOR PRODUCING A BINDER FOR THE CONDITIONING OF SLUDGES, SOILS CONTAINING WATER AND FOR THE NEUTRALIZATION OF ACIDS

Номер: US20200038924A1
Автор: Gronholz Claus
Принадлежит:

The invention relates to a method for producing a binder from slag for conditioning sludges/dredged material, soils containing water and for the neutralization of acids. According to the invention, the slag from a waste incinerator is crushed, then metal is removed and the crushed slag is graded into a fraction greater than 2.0-3.0 mm and a fraction smaller than 2.0-3.0 mm, the fraction 0/2.0-0/3.0 mm is dried in a dryer to a terminal humidity less than 1.5 wt. %-2.5 wt. %, as a result of which the pozzolanic properties of the slag are reactivated, the yield from the dryer is further crushed in a high-speed impact mill to a stable cubic grain structure and the metal released in this process is removed, and the 0/500-0/750 μm fraction forming the binder is separated from this crushed slag. 1111828. A method for producing a binder from slags from municipal waste incineration plants (MWIP slags) for the conditioning of sludges , soils containing water and for the neutralization of acids , wherein the slag () from a waste incineration plant is crushed , the crushed slag is graded into a fraction greater than 2.0 to 3.0 mm and a fraction smaller 2.0 to 3.0 mm , the separated smaller fraction 0/2.0 or 0/3.0 mm is dried in a dryer () to a terminal humidity of less than 1.5 wt. %-2.5 wt. % , as a result of which the pozzolanic properties of the slag are maintained , the yield of the dryer is further crushed , and the 0/500 μm to 0/750 μm fraction forming the binder () is separated from this crushed slag.2. The method according to claim 1 , wherein the slag is stored for about 2.5 to 3.5 months before the first crushing.3. The method according to claim 1 , wherein before drying claim 1 , the metal-containing substances are at least partially removed by digestion from the crushed slag.418. The method according to claim 1 , wherein the drying of the separated smaller fraction 0/2.0 mm to 0/3.0 mm is performed in a drum dryer ().5. The method according to claim 4 , wherein the ...

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Номер записи: 83
06-02-2020 дата публикации

HORIZONTAL ANAEROBIC DIGESTOR WITH SEDIMENT SEPARATOR FOR THE ORGANIC FRACTION OF MUNICIPAL SOLID WASTE AND RELATED PROCESS

Номер: US20200039858A1
Автор: COASSIN GIOVANNI, Pesce Luciano
Принадлежит:

The solution proposed by the present invention consists of the different shape of the bottom of a horizontal digester () having at the terminal part of its length (the end side), at the opposite end from the feed inlet side, a sediment separator () which is in the shape of a conic pyramid (), a linear “V” (), or a mixed form (), which is emptied periodically, allowing the removal of the sediments deposited on the bottom. In the conic pyramidal sediment separator () the emptying occurs by gravity through a controlled valve (), while in the V-shaped linear sediment separator () or the mixed-form sediment separator () the emptying is by means of a helical impeller () at the bottom. The sediment separator allows the use of an organic fraction of municipal solid waste coming from a less sophisticated selection process with a greater presence of residual inorganic waste. 218. Horizontal anaerobic digester () according to claim 1 , characterized by the fact that the numerical relationship between the length D and the total length L of the digester body () has a value between 0.15 and 0.33.319. Horizontal anaerobic digester () according to claim 1 , characterized by the fact that the sediment separator () has the angle between the inclined walls and the horizontal plane with a value between 30° and 60°.419193929694. Horizontal anaerobic digester () according to claim 1 , characterized by the fact that in the sediment separator of the pyramidal conic shape () the emptying is by gravity through a controlled valve () and claim 1 , in the sediment separators in linear V form () and mixed form () the emptying is by means of a helical impeller () at the bottom.5197. Horizontal anaerobic digester () according to claim 1 , characterized by the fact that the operations for emptying the sediment separator are carried out automatically by means of a density level sensor () which detects the filling of the sediment separator.61995. Horizontal anaerobic digester () according to claim 1 ...

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Номер записи: 84
18-02-2021 дата публикации

SEPTIC TANK TREATMENT SYSTEM

Номер: US20210047211A1
Автор: Otis Charles, Van Roy Brian
Принадлежит:

A system for wastewater treatment includes a container placeable in the fluid within a wastewater treatment vessel. The container comprises an inlet into which fluid from the treatment vessel can flow. In operation, compressed air is provided to aerate fluid within the container and vented from the container in such a way that fluid in the vessel external to the container does not receive aeration. Substrate within the container provides biomedia for treating wastewater. The user controls the operation of a pump that transports fluid from inside the container into fluid in the vessel external to the container. Concomitantly, fluid from outside the container flows in though the container's inlet. Thereby, the system continuously treats wastewater with aeration, intermixing treated and untreated wastewater. 1. A wastewater treatment system , comprising:a vessel containing a wastewater body comprising a liquid, the vessel having a first interior bottom; a container;', 'a unit liquid inlet disposed to receive the liquid into the container from the wastewater body;', 'an air diffuser within the container, the air diffuser operatively connected to a source of compressed gas containing oxygen;', 'a unit gas outlet opening outside the wastewater body;', 'a pump, the pump having a pump rate and comprising a pump inlet and a pump outlet, the pump inlet disposed within the liquid in the container and the pump outlet connecting to the wastewater body within the vessel outside the container; and', 'a substrate suitable to support bacterial growth., 'a treatment unit disposed in the wastewater body at a processing height above the interior bottom of the vessel, the treatment unit comprising2. The wastewater treatment system according to claim 1 , wherein the substrate further comprises a population of activated treatment bacteria.3. The wastewater treatment system according to claim 2 , wherein the substrate is one of IFAS and MBBR.4. The wastewater treatment system according to ...

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Номер записи: 85
18-02-2021 дата публикации

SYSTEMS AND METHODS FOR WATER AND SOLIDS TREATMENT

Номер: US20210047214A1
Автор: BETTLE, III Griscom
Принадлежит: BLUE FROG TECHNOLOGIES LLC

The present disclosure is directed to a treatment system in a lagoon containing water that promotes the formation of biologically active granules that digest sludge in the lagoon, the lagoon comprising a bottom thereof, the water of the lagoon having a surface layer, the system including X number of water circulators in a cluster having an impeller disposed in the lagoon, wherein X is greater than or equal to three and hydraulic walls formed from at least some of the water expelled from each of a given pair of adjacent water circulators, wherein each of the hydraulic walls intersects at the midpoint of any two adjacent circulators, said hydraulic wall redirecting the expelled water downward towards the bottom of the lagoon, wherein the hydraulic walls at least partially surround at least one circulator. 1. A treatment system in a lagoon containing water that promotes the formation of biologically active granules that digest sludge in the lagoon , the lagoon comprising a bottom thereof , the water of the lagoon having a surface layer , the system comprising:(i) X number of water circulators in a cluster having an impeller disposed in the lagoon, wherein X is greater than or equal to three, at least one of said X number of water circulators being configured to: move water horizontally and radially from the centerline of each circulator independent of the direction of rotation of the circulator impeller.(ii) hydraulic walls formed from at least some of the water expelled from each of any given pair of adjacent water circulators, wherein each of the hydraulic walls intersects in a substantially straight line at the midpoint of any two adjacent circulators, said hydraulic wall redirecting the expelled water downward towards the bottom of the lagoon, wherein the hydraulic walls at least partially separate occluded gas from the redirected water.2. The system of claim 1 , wherein independent claim 1 , substantially straight hydraulic walls completely surround at least one ...

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Номер записи: 86
19-02-2015 дата публикации

Method for treating a waste stream using a bioreactor and a membrane filter

Номер: US20150048024A1
Автор: Abraham Izaak Versprille, Aurelie Grelot
Принадлежит: Veolia Water Solutions and Technologies Support SAS

Method for treating a fluid aqueous waste stream comprising a biodegradable organic substance, comprising—feeding said stream into a bioreactor containing a fluid which contains biomass;—reacting the biodegradable organic substance with the biomass in the bioreactor under essentially anaerobic conditions;—taking a first flow from the bioreactor and using the first flow as a feed to a membrane filtration unit, in which said feed is subjected to filtration, thereby forming a permeate stream and a retentate stream;—returning the retentate stream to the bioreactor;—taking a second flow from the bioreactor as feed to a sludge treatment unit, in which sludge treatment unit the second flow is separated into a third flow, having an increased organic substance content compared to the second flow, and a fourth flow, having a decreased organic substance content compared to the second flow.

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Номер записи: 87
08-05-2014 дата публикации

Apparatus and method for anaerobic wastewater treatment with membrane

Номер: US20140124439A1
Автор: Jun Hee Ryu, Jung Yeol LEE, Kyung Guen Song, Min-hyuk YOON, Se Yeon WON
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

The present disclosure relates to an apparatus and method for anaerobic wastewater treatment with a membrane, which effectively generates biogas and suppresses fouling on a membrane surface by performing anaerobic treatment to wastewater. The apparatus for anaerobic wastewater treatment with a membrane includes: an anaerobic reactor for performing anaerobic treatment to wastewater and generating biogas; an anaerobic membrane bio-reactor for filtering wastewater discharged from the anaerobic reactor by means of a membrane module and providing an additional anaerobic treatment space for the wastewater; submerged membrane modules provided in the anaerobic membrane bio-reactor to filter wastewater; rotating disks provided at both sides of the submerged membrane module to induce turbulence to the wastewater by means of rotation; and a second media provided in the anaerobic membrane bio-reactor to circulate according to the flow of the wastewater so that foulants on a surface of the membrane module are detached.

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Номер записи: 88
19-02-2015 дата публикации

Treatment of biomass

Номер: US20150050707A1
Автор: Anderson AGGREY, Daniel James Gapes, Peter James STRONG, Robert Jason LEI, Trevor Raymond Stuthridge
Принадлежит: Terax LP

A process for the treatment of biomass comprising subjecting biomass to microbial digestion to produce volatile fatty acids and/or solvents followed by wet oxidation to reduce biosolid volume while retaining or increasing the concentration of the volatile fatty acids and/or solvents.

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Номер записи: 89
03-03-2022 дата публикации

Multistage separation reaction tank and method for treating sewage sludge by using alkane-based solvent using same

Номер: US20220064042A1
Автор: Dong-Cheol Shin, Jae-kyu JI
Принадлежит: Five And Six Co Ltd

The present invention relates to a multistage separation reaction tank for treating sewage sludge by forming a collection layer, a diffusion layer, a primary buffer layer, a secondary buffer layer, and an inorganic precipitate layer when treating an organic material by adding a liquid solvent having a specific gravity less than water to the sewage sludge. In addition, the present invention relates to a method for treating sewage sludge by using an alkane-based solvent, wherein the method significantly lowers the water content of the sewage sludge by using an alkane-based solvent which is in a liquid state and non-polar at atmospheric pressure and room temperature.

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Номер записи: 90
03-03-2022 дата публикации

PROCESS FOR ENHANCED ANAEROBIC DIGESTION OF SLUDGE BY ALCOHOLIZATION OF FOOD WASTE

Номер: US20220064043A1
Автор: DAI Lingling, DAI Xiaohu, Dong Bin, Gao Jun, Li Lei, Liu Zhigang, XU Ying
Принадлежит: TONGJI UNIVERSITY

A process for enhanced anaerobic digestion of sludge by alcoholization of food waste, comprising steps of: (1) ethanol prefermentation of food waste—feeding the food waste having been crushed into a uniform grain size into an ethanol production reactor, where the food waste is subjected to rapid and efficient anaerobic fermentation activated by addition of yeast and pH adjustment to produce ethanol and obtain a fermentation broth and a fermentation residue; (2) sludge pretreatment—pretreating the sludge after mixing with the fermentation residue; and (3) methanogenesis of anaerobic digestion—subjecting products resulting from the sludge pretreatment to be mixed with the fermentation broth and then to methanogenesis of anaerobic digestion in a methane production reactor. With this process, the sludge and the food waste can be treated efficiently via multi-phase reactions, and the resource recovery and biogas quality can be enhanced.

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Номер записи: 91
25-02-2016 дата публикации

MINK SLURRY HANDLING SYSTEM AND A METHOD FOR REDUCING GASEOUS EMISSION FROM A MINK FARM

Номер: US20160050880A1
Автор: HYLDGAARD Ken
Принадлежит:

Disclosed is a mink slurry handling system () comprising a first collection tray () comprising a first tray inlet () at one end and a first tray outlet () at the other end, where the first collection tray () is arranged to extend beneath a first group () of mink cages () arranged substantially side by side. The mink slurry handling system () also includes a second collection tray () comprising a second tray inlet () at one end and a second tray outlet () at the other end, where the second collection tray () is arranged to extend beneath a second group () of mink cages () arranged substantially side by side and the handling system () includes a slurry acidification facility () comprising a slurry inlet () for leading a slurry mixture into the slurry acidification facility () and a slurry outlet () for leading acidified mink slurry out of the slurry acidification facility (), wherein the first tray inlet () is connected to the second tray outlet (), wherein the first tray outlet () is connected to the slurry inlet () either directly or through further collection trays and wherein the second tray inlet () is connected to the slurry outlet () either directly or through further collection trays. A method for reducing gaseous emission from a mink farm () is also disclosed. 1. A mink slurry handling system comprisinga first collection tray comprising a first tray inlet at one end and a first tray outlet at the other end, said first collection tray being arranged to extend beneath a first group of mink cages arranged substantially side by side,a second collection tray comprising, a second tray inlet at one end and a second tray outlet at the other end, said second collection tray being arranged to extend beneath a second group of mink cages arranged substantially side by side,a slurry acidification facility comprising a slurry inlet for leading a slurry mixture into said slurry acidification facility and a slurry outlet for leading acidified mink slurry out of said slurry ...

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Номер записи: 92
14-02-2019 дата публикации

MULTI-STAGE ACTIVATED CARBON SYSTEMS AND PROCESSES WITH RECYCLED STREAMS

Номер: US20190046952A1
Автор: Cunningham William, Ellis Claude E., Larson Simon
Принадлежит:

There are provided herein methods and systems for increasing efficiency in a multi-stage activated carbon system. The methods and systems provide a cleaned carbon solids fraction and a waste liquor from wet air regeneration, and direct the same to a second stage and a first stage, respectively, of the multi-stage activated carbon system to enhance removal efficiency therein. 1. A method for treating wastewater comprising:treating an amount of wastewater in a powdered activated carbon treatment (PACT) system comprising a first stage and at least a second stage, each stage comprising an amount of powdered activated carbon therein, wherein the treating removes at least one contaminant from the wastewater and produces a spent carbon material;directing an amount of the spent carbon material to a wet air regeneration system (WAR) for regeneration of the spent carbon material;separating an effluent from the WAR system into a cleaned carbon solids fraction and a waste liquor;directing the cleaned carbon solids fraction to the second stage; and{'b': '108', 'directing the waste liquor to the first stage for use in treating additional wastewater () in the first stage, thereby relieving the second stage from gross pollutant removal and allowing the second stage to serve as a polishing step to remove first stage effluent contaminants.'}2. The method of claim 1 , wherein the separating of the effluent further comprises washing the cleaned carbon solids fraction with an amount of an aqueous wash solution.3. The method of claim 2 , wherein the separating of the effluent from the WAR system is done by vacuum filtration of the effluent to provide the cleaned carbon solids fraction and the waste liquor.4. The method of claim 2 , wherein the separating is done by repeated decanting and redilution of the effluent to provide the cleaned carbon solids fraction and the waste liquor.5. The method of claim 1 , further comprising adding water to the cleaned carbon solids fraction to bring the ...

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Номер записи: 93
25-02-2021 дата публикации

PROCESS AND SYSTEM FOR SUBCRITICAL OXIDATION OF WATER-BORNE ORGANIC CONTAMINANTS

Номер: US20210053852A1
Автор: SHAH Shashank N.
Принадлежит:

A highly efficient and effective process for destroying organic contaminants in wastewater streams, without the need for supercritical oxidation conditions, is provided. 1. A system for purifying a waste stream comprised of water , at least one organic contaminant and , optionally , at least one oxidizing agent comprising:i) a feed line for the waste stream;ii) a subcritical reactor vessel;iii) a heat exchanger; andiv) a pressure exchanger;wherein:a) the waste stream is provided to the reactor vessel by the feed line;b) the waste stream, when in the reactor vessel, is in a subcritical state;c) in the reactor vessel the at least one organic contaminant undergoes a catalyzed or uncatalyzed oxidative reaction with oxidizing agent effective to completely oxidize at least a portion of the organic contaminant, forming a purified effluent stream;d) the heat exchanger removes heat from the purified effluent stream for use in raising the temperature of the waste stream and recovers at least 80% of heat input; ande) the pressure exchanger removes mechanical energy from the effluent stream for use in raising the pressure of the waste stream and recovers at least 95% of such mechanical energy.2. The system of claim 1 , wherein the waste stream comprises at least one oxidizing agent.3. The system of claim 2 , wherein the at least one oxidizing agent includes at least one peroxide.4. The system of claim 2 , wherein the at least one oxidizing agent includes hydrogen peroxide.5. The system of claim 1 , wherein at least one oxidizing agent is introduced into the subcritical reactor vessel and the at least one oxidizing agent includes at least one of molecular oxygen or at least one peroxide.6. The system of claim 1 , wherein at least one catalyst capable of catalyzing oxidation of the at least one organic contaminant is present in the subcritical reactor vessel and is contacted with the waste stream.7. The system of claim 1 , wherein the heat exchanger recovers at least 95% of heat ...

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Номер записи: 94
25-02-2021 дата публикации

Process and device for treating a waste lye

Номер: US20210053853A1
Автор: ANANIEVA Ekaterina, Baus Michael, HAIRER Florian, Schubert Martin, Wellenhofer Anton, ZANDER Jörg
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The invention relates to a process for treating a waste lye of a lye scrub using an oxidation reactor (), the waste lye and oxygen or an oxygen-containing gas mixture being introduced into the oxidation reactor () and steam being introduced into the oxidation reactor (). It is provided that the steam is at least partially introduced by means of a steam feeding device (), which has a cylindrical section () with a centre axis () and a wall (), the centre axis () being aligned perpendicularly, a number of groups of openings () being formed in the wall, each of the groups comprising a number of the openings (), and the number of openings () of each of the groups being arranged in one or more planes () that is or are in each case aligned perpendicularly to the centre axis (). A corresponding installation and also a corresponding oxidation reactor () are likewise the subject of the present invention. 110010010010111213121414141512. A process for treating a waste lye of a lye scrub by using an oxidation reactor () , the waste lye with oxygen or an oxygen-containing gas mixture being introduced into the oxidation reactor () and steam being introduced into the oxidation reactor () , characterized in that the steam is at least partially introduced by means of a steam feeding device () , which has one or more cylindrical sections () with in each case a centre axis () and in each case a wall () , the centre axis () being aligned perpendicularly , a number of groups of openings () being formed in the wall , each of the groups respectively comprising a number of the openings () , and the number of openings () of each of the groups being arranged in one or more planes () that is or are in each case aligned perpendicularly to the centre axis ().214151513. The process according to claim 1 , in which the openings () in each of the planes () are arranged such that they are distributed equidistantly around a circumference defined by a sectional line of the respective plane () with the ...

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Номер записи: 95
13-02-2020 дата публикации

METHOD FOR TREATING WASTEWATER AND WASTEWATER SLUDGE USING A PERCARBOXYLIC ACID

Номер: US20200048118A1
Автор: Allen James Currie, Mariga Tafadzwa
Принадлежит: KEMIRA OYJ

The present invention provides a method for treating wastewater or wastewater sludge, in which method percarboxylic acid is used as an odor controlling agent and/or corrosion controlling agent. 1. A method for treating wastewater and/or wastewater sludge , comprising using a treating chemical comprising percarboxylic acid as an odor controlling agent and/or corrosion controlling agent.2. The method according to claim 1 , wherein the percarboxylic acid is selected from the group consisting of performic acid claim 1 , peracetic acid and a combination of thereof.3. The method according to claim 1 , wherein performic acid is used as the treating chemical.4. The method according to claim 4 , wherein an active concentration of the performic acid is at least 8% claim 4 , at least 9% claim 4 , at least 10% claim 4 , or in a range of 8-14% claim 4 , calculated as weight to volume.5. The method according to claim 1 , wherein the method comprising:obtaining a wastewater or wastewater sludge stream, andadding the treating chemical comprising percarboxylic acid to the wastewater or wastewater sludge stream.6. The method according to claim 5 , wherein the wastewater or the wastewater sludge stream is a stream in municipal wastewater collection or treatment application claim 5 , municipal sludge collection or treatment application or industrial wastewater application.7. The method according to claim 5 , further comprising:measuring a concentration of dissolved sulfides in the wastewater or wastewater sludge stream prior to the addition of the treating chemical; andadjusting the addition of the treating chemical according to the information obtained about the concentration of the dissolved sulfides.8. The method according to claim 7 , wherein a concentration of dissolved sulfides in the wastewater or wastewater sludge stream is measured at a point claim 7 , to which claim 7 , the wastewater or wastewater sludge stream is flowed after the addition of the treating chemical.9. The ...

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Номер записи: 96
13-02-2020 дата публикации

BIOMASS SELECTION AND CONTROL FOR CONTINUOUS FLOW GRANULAR/FLOCCULENT ACTIVATED SLUDGE PROCESSES

Номер: US20200048131A1
Автор: Beaman Tyson, Stensel H. David, Trivedi Hiren, Vorwaller John
Принадлежит:

A continuous flow granular/flocculent sludge wastewater process selects for granule biomass capable of nitrogen and phosphorus removal and controls granule size and concentration of granular and flocculent sludge for optimal nutrient, organic, and solids removal in a smaller footprint. It includes anaerobic, anoxic, and aerobic process zones, a high soluble biodegradable COD loaded first reactor in anaerobic or anoxic zones, a granular sludge classifier with recycle of underflow granular sludge to the first reactor, a secondary clarifier to settle flocculent sludge and particulates and recycle of flocculent sludge from the secondary clarifier underflow to an aerobic process zone. Wasting of sludge from the two separate recycle lines controls the bioprocess flocculent and granular sludge concentrations and SRTs. Bypass around and recycle flow to the classifier to maintain desired flow under various influent flow conditions aid control of granule size. On/off mixer operation of anaerobic and anoxic reactors may be used. 1. A wastewater treatment system for biological treatment of wastewater including organic sewage , the system including a liquid process configuration for removal of at least nitrogen and for concentrating biomass , in a continuous flow process , comprising:a plurality of process zones, including a first process zone receiving influent wastewater in continuous flow and mixing the influent wastewater with biomass to produce a mixed liquor in the first process zone, and including bacteria in the first process zone effective to produce granular biomass as well as flocculent biomass, the first process zone being anaerobic or anoxic to encourage formation of granular biomass,the plurality of process zones including at least a second process zone receiving mixed liquor in continuous flow from the first process zone, including granular biomass and flocculent biomass, the process zones including an aerobic zone,a biomass classifier downstream of the process ...

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Номер записи: 97
22-02-2018 дата публикации

CEMENT SOLIDIFICATION DEVICE FOR WASTE AND METHOD THEREFOR, AND ZERO-LIQUID DISCHARGE AIR POLLUTION CONTROL SYSTEM AND METHOD THEREFOR

Номер: US20180050302A1
Автор: Fukuda Toshihiro, Kagawa Seiji, Kamiyama Naoyuki, Sugita Satoru, Ushiku Tetsu
Принадлежит: Mitsubishi Hitachi Power Systems, Ltd.

A cement solidification device for waste includes a slurrying vessel that dissolves and slurries waste containing harmful substances and deliquescent compounds in solvent water to obtain slurried material ; an iron-based additive supply unit that adds an iron-based additive to the slurrying vessel ; a cement kneading vessel that adds a cement solidifying agent from a cement-solidifying agent supply unit to the slurried material in which the iron-based additive is mixed to obtain a cement kneaded product ; and a cement solidification unit that cures the cement kneaded product to form a cement solidified product 1. A cement solidification device for waste , the cement solidification device comprising:a slurrying vessel that dissolves and slurries waste containing harmful substances and deliquescent compounds in solvent water to obtain slurried material;a cement kneading vessel that adds a cement solidifying agent to slurried material in which an iron-based additive is mixed to obtain a cement kneaded product;an iron-based additive supply unit that adds the iron-based additive to either one or both of the slurrying vessel and the cement kneading vessel; anda cement solidification unit that cures the cement kneaded product to form a cement solidified product.2. The cement solidification device for waste according to claim 1 , wherein the iron-based additive is an inorganic ferrous salt.3. A cement solidification method for waste containing heavy metals and deliquescent compounds claim 1 , the cement solidification method comprising:dissolving and slurrying waste that contains heavy metals and deliquescent compounds in solvent water to obtain slurried material;adding a cement solidifying agent to slurried material in which an iron-based additive is mixed and that contains heavy metals, followed by kneading;adding the iron-based additive to the slurried material or a cement kneaded product that contains harmful substances and the deliquescent compounds; andcuring the ...

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Номер записи: 98
23-02-2017 дата публикации

ANAEROBIC COLUMN REACTOR FOR BIODEGRADATION OF WASTES AND THE PROCESS THEREOF

Номер: US20170050892A1
Автор: Bodkhe Sandeep Y., Vaidya Atul N.
Принадлежит:

The present invention relates to an anaerobic column reactor for biodegradation of wastes. Particularly the present invention relates to a process for conversion of biodegradable wastes to biogas and compost. More particularly, the present invention relates to an anaerobic reactor with unique arrangement of expanded and constricted portions alternatively placed vertically over each other which enhances the mixing pattern and thereby the mass transfer rates while controlling the biomass washout by regulating the upflow liquid velocity. 1. A anaerobic column reactor for conversion of biodegradable organic matter present in wastewaters and solid wastes into biogas and compost; said reactor consisting essentially of a column of at least four expended portions (EP) , connected to each other by constricted portions (CP) , waste feeding and chemicals feeding facility , biogas collection sampling and measurement assembly , slurry/digestate recirculation assembly , with backwash facility.210012345610078910111213141516171819202122232425262728. The anaerobic column reactor () according to claim 1 , said reactor having a feed tank () equipped with waste feeding funnel () claim 1 , mixing arrangement () claim 1 , feed pump () claim 1 , inlet pipe () claim 1 , regulating valves () claim 1 , said reactor () is having a constricted portion () and expanded portion () claim 1 , recirculation pipe () claim 1 , outlet () claim 1 , valves () and () claim 1 , slurry recirculation facility () () () claim 1 , chemicals feeding facility () claim 1 , biogas collection facility () and () sampling and measurement assembly () () connected to settling tank () claim 1 , biogas collection assembly () connected with outlet () claim 1 , sludge disposal outlet () claim 1 , and slurry/digestate recirculation arrangement () connected with valves () () and a stand to support the reactor assembly ().310087. The anaerobic column reactor according to claim 1 , wherein said reactor () consisting a column of ...

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Номер записи: 99
22-02-2018 дата публикации

ENVIRONMENTALLY SUSTAINABLE CEMENT COMPOSITION, ITS USE FOR INERTING DREDGING SEDIMENTS/SLUDGES, RELATIVE METHOD AND APPARATUS FOR INERTING

Номер: US20180050946A1
Автор: CAPANNELLI Gerardo, Capannelli Gustavo, CEPOLINA Sara, COMITE Antonio, Corazza Fabio, DI DIO Maurizio
Принадлежит:

A cement composition based on a sulfoaluminate clinker is described, together with its use for agglomerating and inerting sediment/dredging sludge, and the relative inerting method and apparatus. 1. An environmentally sustainable cement composition which comprises a sulfoaluminate clinker in a percentage ranging from 75 to 97.9% by weight with respect to the weight of the cement , ferrous sulfate (FeSOnHO) in a percentage ranging from 2 to 20% by weight with respect to the weight of cement , and an accelerating agent of a hydration reaction in a percentage ranging from 0.1 to 5% by weight with respect to the weight of the cement.2. The cement composition according to claim 1 , wherein the sulfoaluminate clinker has a content of 4CaO.3AlO.SO(“C4A3 $”) higher than 5% by weight with respect to the total weight of the clinker and a content of (CaO)SiO(“C2S”) lower than 75% by weight with respect to the total weight of the clinker.3. The cement composition according to claim 1 , wherein the sulfoaluminate clinker comprises from 40% to 80% by weight of C4A3$ and from 15% to 25% by weight of C2S claim 1 , with respect to the total weight of the clinker claim 1 , where the remainder of the cement composition is comprised of oxides and/or minor phases.4. The cement composition according to claim 1 , wherein FeSOis present in a percentage ranging from 2 to 20% by weight with respect to the weight of cement.5. The cement composition according to claim 1 , wherein the accelerating agent of the hydration reaction comprises an alkaline metal salt of a carbonate claim 1 , sulfate or nitrate claim 1 , and is more preferably lithium carbonate or sodium carbonate and more preferably lithium carbonate.6. The cement composition according to claim 1 , comprising:a sulfoaluminate clinker comprising from 54% to 62% by weight of C4A3$ and from 18% to 22% by weight of C2S with respect to the total weight of the clinker, said sulfoaluminate clinker being present in a quantity ranging from 90 ...

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Номер записи: 100