Apparatus and method

Sewage water depuration plant, comprising a vertical reactor

PRODUCTION OF BIOMASS FOR USE IN THE TREATMENT OF FISCHER-TROPSCH REACTION WATER

METHOD AND APPARATUS FOR DISPOSAL AND TREATMENT OF WASTE

Plant waste water treatment method and treatment system

A waste water treatment plant

Process and reactor for intensfied and energy efficient, biological (waste-) water treatment

Process to obtain water bodies larger than 1,5000 m3 for recretional use with color transparency andcleaness characteristics similar to swimming pools or tropical seas at low cost

A medium for fixing bacteria. A medium for fixing bacteria.

Filter device.

Apparatus and method for biological sewage treatment

Aeration system for tank

Filter device.

A filter device for use in the treatment of water ...

Treatment of wastewater.

A wastewater treatment process 100 comprises passing ...

A system for purification of domestic household effluent.

A pharmaceutical tablet wherein the active ingredient is famciclovir of formula: is present in a percentage by weight of at least 85 %. The tablet contains less then 15 % lactose ...

Method and apparatus for disposal and treatment of waste.

Organic waste disposal treatment apparatus {10}includes a treatment chamber assembly {11}in which a compost bed {12}may be formed, an inlet {21}to the treatment chamber assembly {11}through which organic waste may be added to a compost bed {12}in the treatment chamber assembly {11}, ventillation means {28}for promoting aerobic digestion of the compost bed {12}in the treatment chamber assembly {11}drainage means {39,40,41}for accessing and rempval of compost formed in the treatment chamber assembly {11} ...

Apparatus and method for biological sewage treatment

Plant waste water treatment method and treatment system

A treatment system for biological process fluids.

A treatment system for a biological process fluid, comprising a plurality of chambers interconnected with one another in sequence such that a process fluid can pass through them, means for determining the process conditions in at least some of the chambers by varying at least one process parameter while the process fluid is resident in the chamber such that different parts of a complex process are encouraged to take place in different chambers in the system.

METHOD AND APPARATUS FOR DISPOSAL AND TREATMENT OF WASTE

A system for purification of domestic household effluent

TREATMENT OF WASTEWATER

Wastewater treatment process and plant comprising controlling the dissolved oxygen concentration

FILTER DEVICE

Aeration system for tank

Apparatus for processing fluids

Wastewater treatment

Process to obtain water bodies larger than 1,5000 m3 for recretional use with color transparency andcleaness characteristics similar to swimming pools or tropical seas at low cost

Aeration system for tank

Apparatus and method

A waste water treatment plant

SAF system and method involving specific treatments at respective stages

Wastewater treatment

Process and reactor for intensfied and energy efficient, biological (waste-) water treatment

Deep-shaft depurator plant comprising two air-lifts

Process to obtain water bodies larger than 15,000 M3 for recreational use with color transparency and cleaness characteristics similar to swimming pools or tropical seas at low cost.

A novel fluidized bed reactor for treatment of waste water

PRODUCTION OF BIOMASS FOR USE IN THE TREATMENT OF FISCHER-TROPSCH REACTION WATER

Wastewater treatment process and plant comprising controlling the dissolved oxygen concentration

Gravity feed water treatment system.

A medium for fixing bacteria. A medium for fixing bacteria.

Sewage water depuration plant, comprising a vertical reactor

Aeration system for tank

Plant waste water treatment method and treatment system

Wastewater treatment process and apparatus

New process of surface water filtration to surviving layer low thickness and installation of implementation.

Cycvlone for double purpose of extraction.

Method for purifying sewage

Process of purification of polluting residues and installation for its implementation.

Method and device for sewage treatment

Composition for the waste disposal of hydrocarbons and various industrial waste by biological degradation.

Method and apparatus for disposal and treatment ofwaste

System of purification of water using the ozone injection.

Purifying plant.

Sewage purification apparatus.

Improvements in or relating to biolytic filtration.

Biological disposal of oxalates

Process for the purification of waste water and purification plant implementing it.

Improved wastewater treatment process

Device of introduction of a gas into a liquid.

Device for the foreign matter conversion in muds of évaution and waste water.

Installation of water treatment not comprising a mobile machine element in contact with the liquid to be treated.

Apparatus for processing fluids

A novel fluidized bed reactor for treatment of waste water

FILTER DEVICE

Process and reactor for intensfied and energy efficient, biological (waste-) water treatment

Apparatus for processing fluids

Process to obtain water bodies larger than 1,5000 m3 for recretional use with color transparency andcleaness characteristics similar to swimming pools or tropical seas at low cost

Wastewater treatment process and plant comprising controlling the dissolved oxygen concentration

Gravity feed water treatment system.

A waste water treatment plant

PRODUCTION OF BIOMASS FOR USE IN THE TREATMENT OF FISCHER-TROPSCH REACTION WATER

TREATMENT OF WASTEWATER

A novel fluidized bed reactor for treatment of waste water

A system for purification of domestic household effluent

Deep-shaft depurator plant comprising two air-lifts

Apparatus and method for biological sewage treatment

Gravity feed water treatment system.

Wastewater treatment process and plant comprising controlling the dissolved oxygen concentration

SAF system and method involving specific treatments at respective stages

DEVICE FOR REGISTERING GASES IN LIQUIDS, IN PARTICULAR TO THE SURFACE VENTILATION OF WASTE WATER

PROCEDURE AND MECHANISM FOR THE BIOLOGICAL CLEANING OF HIGHLY LOADED WASTE WATER

DEVICE FOR THE PROCESSING OF LIQUIDS

WASTE WATER PURIFICATION PROCEDURE OF MEANS OXYGEN AS WELL AS MECHANISM FOR ITS EXECUTION

REACTOR FOR CONTINUOUS BIOLOGICAL CLEANING OF WASTE WATER, IN PARTICULAR SUITABLY FOR WEEKEND HOUSES, FAMILIENHAEUSER U.DGL.

DEVICE FOR THE VENTILATION OF LIQUIDS ON WATER BASIS, IN PARTICULAR GUELLE OR CHANNEL OF WASTE WATER

PLANT FOR THE COMMON PROCESSING OF EXKREMENTMATERIAL AND IN THE HOUSEHOLD RESULTING WASTE WATER

PROCEDURE FOR THE REDEVELOPMENT OF PURIFICATION PLANTS OVERLOADED AT CONTINUOUS ENTERPRISE AND PURIFICATION PLANT FOR THE EXECUTION OF THE OF WELL-BEHAVED PROCEDURE

PROCEDURE AND ARRANGEMENT FOR THE TREATMENT OF LIQUIDS, IN PARTICULAR WASTE WATER, USING AEROBI CLEANING

PLANT FOR THE COMMON PROCESSING OF EXKREMENTMATERIAL FROM A TROCKENKLOSETT AND OF IN THE HOUSEHOLD RESULTING DIRT AND/OR GE CUSTOM WATER

PROCEDURE FOR THE AVOIDANCE OF THE GROWTH OF FIBROUS BIOMASS WITH THE ENTERPRISE OF AN ACTIVE MUD SYSTEM

PROCEDURE FOR CLEANING EXHAUST AIR OF MEANS A MIKROFLORA CONTAINING WASHING LIQUID

DEVICE FOR VENTILATING FLOWING MEDIA

PROCEDURE AND MECHANISM FOR THE PREVENTION OF THE BLISTERING WITH THE MIXING OF A TO REACTION GAS SATISFIED LIQUID

DEVICE FOR ROLLING A LIQUID OVER BY GAS

Apparatus for aerating flowing media

An apparatus for aerating flowing media, in particular sewage sludge in a settling tank 1 comprises, beneath the surface of the medium, an electric pump 2, 16, an aerator 3 which draws in from the atmosphere via a pipe 8, a diffuser 9 and a riser pipe 10 which opens above the surface. A channel 11, 11' is attached which feeds the elevated flowing medium, for example, via a bend 12 to an aerator 13 immediately drawing in from the atmosphere, downstream of which are connected a diffuser 14 and a descending pipe 15 which end beneath the surface of the medium to be aerated. ...

PROCEDURE AND DEVICE FOR A BIOLOGICAL CLEANING OF ANGEFAULTEM WASTE WATER FROM LOWERING PITS AND MULTI-CHAMBER PUTRID PLANTS

DEVICE FOR BIOLOGICAL SEWAGE PURIFICATION

Device for cleaning up wastewater

PROCEDURE FOR THE WATER PURIFICATION OF MOVEMENT AND THERAPY BASINS

METHOD AND SYSTEM FOR TREATING WASTEWATER

Methods and systems are provided herein for treating wastewater, such as wastewater from oil and natural gas production. Distilled water may be treated with bacteria and other micro-organisms to remove nitrogen compounds from the distilled water. The distilled water may be produced from pretreating and distilling wastewater. The treatment steps of the distilled water include subjecting the water to microbial action under both anoxic and aerobic conditions and employing a membrane bioreactor to further purify the water. The purified water is still further purified by either reverse osmosis or ion exchange systems. 1. A method of preparing de-wasted water from oil and/or natural gas production wastewater , the method comprising:distilling oil and/or natural gas production wastewater to produce a distilled water comprising contaminants, the contaminants comprising nitrogen compounds; adjusting the temperature of the distilled water to between 20° C. to 35° C.;', 'denitrifying a portion of the nitrogen compounds in the distilled water under anoxic conditions;', 'nitrifying additional nitrogen compounds in the distilled water under aerobic conditions; and', 'introducing the distilled water to a membrane bioreactor comprising a membrane to remove a portion of the contaminants from the distilled water to arrive at a purified water from the membrane bioreactor; and, 'purifying the distilled water to produce a purified water therefrom, said purifying comprisingintroducing the purified water to a reverse osmosis system to convert the purified water into a de-wasted water that meets or exceeds each de-wasted water criterion of General Permit WMGR123 (Pennsylvania Department of Environmental Protection, 2012).2. The method of claim 1 , further comprising pretreating the wastewater prior to the distilling claim 1 , the pretreating comprising one or more of: adjusting a pH of the wastewater claim 1 , adding one or more chemicals to the wastewater claim 1 , clarifying the ...

METHOD AND APPARATUS FOR RESIDENTIAL WATER RECYCLING

A wastewater recycling system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to the biological reactor. The lift station receives biologically treated liquid from the biological reactor and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a salt-rejecting membrane filter comprising a concentrate recirculation conduit operatively connected to recirculate salt-rejecting membrane filter concentrate to a point along the wastewater recycling system upstream of the salt-rejecting membrane filter, thereby forming a salt concentration loop between said point along the wastewater recycling system and the salt-rejecting membrane filter. A post-filtration subsystem is operatively connected to receive salt-rejecting membrane filter permeate, and comprises a water disinfection system that disinfects the permeate thereby generating potable water. 1. A wastewater recycling system comprising:a) a biological reactor, the biological reactor comprising an anaerobic chamber, an anoxic chamber, and an aerobic chamber;b) a tertiary filter in a tertiary filter chamber, the tertiary filter operatively connected to receive aerobically treated liquid from the aerobic chamber;c) a lift station comprising a pump, wherein the lift station is operatively connected to the tertiary filter to receive filtrate from the tertiary filter and pump the tertiary filter filtrate from the lift station;d) a preliminary membrane filter operatively connected to the lift station to receive the tertiary filter filtrate;e) at least one salt-rejecting membrane filter operatively connected to the preliminary membrane filter to receive preliminary membrane filter permeate;f) an adsorbent unit for receiving salt-rejecting membrane filter permeate, andg) ...

Chemical free and energy efficient desalination system

A desalination system ( 100 ) having an intake unit ( 110 ) providing seawater to a pre-treatment unit ( 120 ) connected to a reverse osmosis (RO) desalination unit ( 130 ) and a post treatment unit ( 150 ). The desalination system ( 100 ) is configured to operate without any external addition of chemicals to simplify logistics and regulation concerns. The units of the system are configured to prevent biofouling, scaling and corrosion by mechanical and biological means including high flow speeds, biological flocculation of colloids, and making the water entering the RO units inhospitable to bacteria and other organisms that cause biofouling, hence preventing their settlement and removing them with the brine. Recovery rate is lowered and energy is recovered to increase the energetic efficiency and minerals that are added to the product water are taken from the brine.

WASTEWATER TREATMENT WITH MODULAR MEMBRANE BIOREACTOR CARTRIDGES

Embodiments of the invention describe an apparatus, method, and system of wastewater treatment using modular membrane bioreactor (MBR) cartridges. In one embodiment, said method of wastewater treatment includes adjusting the number of activated modular MBR cartridges in a container and adjusting the wastewater processing rate of the container to dynamically change the throughput of a fixed-size wastewater processing container. According to one embodiment, said method can include utilizing modular MBR cartridges to provide for a fault-tolerant wastewater treatment container. 1. (canceled)2. A membrane bioreactor (MBR) cartridge comprising:a plurality of MBR filters, each of the plurality of MBR filters including one or more membranes;a filter coupler, the filter coupler coupling the plurality of MBR filters; anda feature that enables variable throughput in a wastewater processing container into which the MBR cartridge is placed, the feature including allowing the MBR cartridge to be dynamically activated or deactivated.3. The MBR cartridge of claim 2 , wherein at least one material of the one or more membranes is selected based on quality requirements of effluent from the wastewater processing container.4. The MBR cartridge of claim 2 , wherein at least one of the one or more membranes is selected based on its ability to withstand an additional suction pressure for periods of time claim 2 , the additional suction pressure being greater than a standard suction pressure.5. The MBR cartridge of claim 2 , wherein the MBR cartridge combines bio-reactive treatment processes with membrane separation processes.6. The MBR cartridge of claim 2 , wherein the feature is coupled to a computer system having control logic for performing the dynamic activation or deactivation of the MBR cartridge.7. The MBR cartridge of claim 6 , wherein the computer system is coupled to one or more sensors for monitoring volumetric flow rate in the wastewater processing container and the control ...

CONTAINER WITH BIOFILM FORMATION-INHIBITING MICROORGANISMS IMMOBILIZED THEREIN AND MEMBRANE WATER TREATMENT APPARATUS USING THE SAME

The present disclosure relates to a technique for inhibiting biofouling of the surface of a membrane caused by a biofilm, through immobilizing biofilm formation-inhibiting microorganisms to a container in a membrane water treatment process. The present disclosure provides a non-hollow/hollow columnar or sheet-like permeable carrier with flowability owing to submerged aeration and a container with biofilm formation-inhibiting microorganisms immobilized therein, comprising biofilm formation-inhibiting microorganisms immobilized in the carrier. The present disclosure also provides a membrane water treatment apparatus comprising a reactor accommodating water to be treated, a membrane module for water treatment and a container with biofilm formation-inhibiting microorganisms immobilized therein placed in the reactor. 1. A membrane bio-reactor (MBR) process for water treatment , comprising:contacting water to be treated with microorganisms for biological water treatment; andfiltering the biologically treated water through the membrane in the presence of a container comprising a permeable carrier and biofilm formation-inhibiting microorganisms, other than the microorganisms for biological water treatment, immobilized in the carrier,wherein the biofilm formation-inhibiting microorganisms inhibit quorum sensing of the microorganisms for biological water treatment responsible for biofilm formation on a surface of the membrane; andwherein the permeable carrier comprises a hydrogel and has fluidisability through submerged aeration.2. A membrane bio-reactor (MBR) process for water treatment according to claim 1 , wherein the permeable carrier is a spherical in shape.3. A membrane bio-reactor (MBR) process for water treatment according to claim 1 , wherein the permeable carrier is a columnar or sheet-like in shape.4. A membrane bio-reactor (MBR) process for water treatment according to claim 3 , wherein the permeable carrier is a circular columnar in shape.5. A membrane bio- ...

Removal and Recovery of Phosphate from Liquid Streams

An economical method for recovering phosphate or phosphate and nitrogen from liquid streams. A liquid containing phosphate is introduced into a culture of autotrophic microorganisms in the presence of natural or artificial light, thereby producing a liquid effluent with elevated pH and reduced alkalinity. The alkalinity is reduced through the consumption of bicarbonate/carbonate by the autotrophic microorganisms. The effluent is then chemically treated with low-cost chemicals to provide Ca or Mg ions necessary to form a phosphate precipitate such as calcium phosphate or magnesium-ammonium-phosphate (MAP). The autotrophic microorganisms can be cultivated in ponds, lagoons, or photobioreactors. The pH of the culture is adjustable within a preferred range of 7.5 to 10.5 by adjusting the photobioreactor operation. The process includes an economical flotation separator for solid, liquid, gas separation and a means of concentrating ammonia nitrogen that may also be removed during the process of phosphate reclamation. 1. A process for concentrating a condensate of ammonia gas and water , comprising the steps of:(a) mixing the condensate in a chiller/condenser with a low pH carbonic acid wash solution to form a concentrated bicarbonate solution and ammonia-deficient gas;(b) discharging the ammonia-deficient gas from the chiller/condenser;(c) decomposing the ammonium bicarbonate solution from the chiller/condenser in a heated, thermal decomposition reactor under pressure to thereby form decomposed solution that includes carbon dioxide gas and ammonia gas decomposition products;(d) releasing the pressure in the chiller/condenser to preferentially release concentrated ammonia gas;(e) collecting and cooling the concentrated ammonia gas to form a concentrated, ammonium hydroxide solution; and(f) collecting and chilling the remaining bicarbonate solution, and saturating said solution with carbon dioxide, to produce a wash solution for use in the chiller/condenser.2. The process ...

SYSTEM AND METHOD FOR TREATING WASTEWATER

The invention comprises an activated sludge treatment system and process that aerates wastewater undergoing treatment using venturis. 113-. (canceled)14. An activated sludge treatment system for treating wastewater , comprising:a primary treatment chamber adapted to settle solids out of polluted influent that is fluidically connected to a secondary treatment chamber adapted to digest organic materials in primary-treated wastewater with aerobic micro-organisms;wherein the secondary treatment chamber is fluidically connected to a sedimentation chamber;wherein the sedimentation chamber is further fluidically connected to a return activated sludge pipeline and a secondary supernatant discharge pipeline;wherein the secondary supernatant discharge pipeline is further fluidically connected to a venturi disposed within the secondary treatment chamber; andwherein the venturi is further fluidically connected to an air pipe, and is adapted to mix secondary supernatant from the secondary supernatant discharge pipeline with air from the air pipe, and discharge the mixture into the secondary treatment chamber.15. An activated sludge treatment system for treating wastewater , comprising: (i) a sedimentation tank that is fluidically connected to a return activated sludge line; and', '(ii) a mixed liquor line that is fluidically connected to a mixed liquor pump and a venturi disposed within the secondary treatment tank,, 'a primary treatment tank adapted to settle solids out of polluted influent that is fluidically connected to a secondary treatment tank adapted to digest organic materials in primary-treated wastewater with aerobic micro-organisms, wherein the secondary treatment tank is fluidically connected towherein the mixed liquor line is adapted to convey mixed liquor from the secondary treatment tank to the venturi, andwherein the venturi is further fluidically connected to an air pipe, and is adapted to mix the mixed liquor with air from the air pipe, and discharge the ...

Tree Box Filter with Hydromodification Panels

The invention provides structures, methods, and assemblies for bioretention systems, including tree box filters with substantially permeable panels integrated into a bottom portion of the tree box filter. The invention also provides methods and additional structures that are useful for managing stormwater flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems. 1. An assembly for use in a bioretention system comprising:a. an inlet chamber comprising an inlet port, a treatment port, and a bypass port;b. a treatment chamber adjacent to a first side of the inlet chamber and comprising biofiltration material;c. an outlet chamber adjacent to a second side of the inlet chamber and comprising an outlet port; andd. a bottom member disposed along a bottom portion of the treatment chamber, the bottom member comprising a substantially pervious region embedded within a substantially impervious region.wherein the treatment port is adapted to direct stormwater to the treatment chamber and the bypass port is adapted to directed overflow stormwater to the outlet chamber.2. The assembly of claim 1 , wherein the treatment port comprises an interior opening in the inlet chamber.3. The assembly of claim 1 , wherein the bypass port comprises an upper weir and a lower weir in the inlet chamber.4. The assembly of claim 3 , wherein the upper and lower weirs extend into an interior of the inlet chamber.5. The assembly of claim 3 , wherein the inlet chamber comprises a side wall claim 3 , and the upper and lower weirs are disposed within the side wall of the inlet chamber.6. The assembly of claim 1 , wherein the substantially pervious region comprises a plurality of panels that are adapted to permit fluid flow claim 1 , while restricting the passage of gravel and underdrain material therethrough.7. The assembly of claim 6 , wherein the plurality of panels are integral to the substantially impervious region.8. The assembly of claim 6 , wherein the ...

Multiple Attached Growth Reactor System

Described herein are attached growth reactor systems which increase nitrifying bacteria biomass through a variety of means during warm weather. As a consequence, the attached growth reactor system contains sufficient nitrifying bacteria biomass to remove ammonia from wastewater in cold to moderate climates. In one example, there are two attached growth reactors into which wastewater is distributed discontinuously. Specifically, wastewater is transferred to the first attached growth reactor for a first period of time and then is transferred to the second attached growth reactor for a second period of time during warm weather which effectively doubles the nitrifying bacteria biomass in the system. During cold weather, approximately half of the wastewater is applied to each reactor simultaneously. 1. A method for aeration or oxygenation comprising:in an attached growth reactor comprising a plurality of stationary fixed media for supporting biomass growth, each respective one of said stationary fixed media including at least one oxygen intake port and a plurality of aeration or oxygen dispersion ports,connecting each respective one of the stationary fixed media to an aeration source via the at least one oxygen intake port; andsupplying air or oxygen to a first respective one of the stationary fixed media for a first period of time, and then supplying air or oxygen to a second respective one of the stationary fixed media for a second period of time.2. The method according to wherein the air or oxygen is heated.3. The method according to wherein the first period of time and the second period of time are selected from the group consisting of: a few hours; a day; a few days; a week; a few weeks; a month; and a few months.4. A method for increasing nitrifying bacteria biomass in an attached growth reactor comprising:providing an attached growth reactor system having a first end and a second end wherein the first end and the second end are both capable of acting as an inlet ...

AERATION OF LIQUID SUITABLE FOR AQUEOUS WASTE TREATMENT

Disclosed are methods and devices useful for aerating and or adding additives to carbon-containing aqueous waste. 2. The aerator kit of claim 1 , wherein said at least one peripheral hole being perpendicular to said longitudinal axis.3. The aerator kit of claim 1 , further comprising:screw threads on at least a portion of the inside of said solid wall of said body component near said proximal aperture; andconstituting at least a portion of said mating portion of a said nozzle insert, screw threads on the proximal outside portion of a said nozzle insert configured to mate with said screw threads of said body component.4. The aerator kit of claim 1 , wherein:said fluid-flow channel of said body component has a diameter proximal to said proximal aperture of said body component sufficiently large to allow said mating portion of a said nozzle insert to slidingly pass thereinto; andsaid fluid flow channel includes, on an interior side thereof, a stop, located distally from said proximal aperture of said fluid-flow channel to preventing sliding of said mating portion of a said nozzle insert past said stop.5. The aerator kit of claim 1 , said body component of said body component and a said nozzle insert configured so that when mated claim 1 , a proximal end of said nozzle insert is flush with a proximal end of said wall of said body component claim 1 , such that no portion of said nozzle insert extends outside of said body component.6. The aerator kit of claim 1 , said body component configured for serial linking to at least one additional such body component.7. The aerator kit of claim 6 , said body component configured so that when serially-linked with a said additional such body component claim 6 , the respective said fluid-flow channels of said body components are coaxial.8. The aerator kit of claim 1 , wherein the cross-sectional size perpendicular to said longitudinal axis of said fluid-flow channel of said body component varies along the length thereof.9. The ...

WASTEWATER LEACHING SYSTEM

Methods, apparatus, and systems involving high aspect ratio conduits are provided. These may involve a plurality of high aspect ratio leaching channels that may be spaced a predetermined distance apart from each other. The predetermined distance can facilitate backfilling of the volumes of adjacent high aspect ratio leaching channels. The backfill may be sand as well as other materials. 1. A wastewater treatment system comprising: each of the three infiltrative channels spaced apart from each other,', 'each of the three infiltrative channels having an exterior geotextile and having at least two upright infiltrative surfaces,', 'each of the three infiltrative channels having a top, a bottom, a height, a width, and a length wherein the height to width aspect ratio of each of the infiltrative channel is 3 or 96 or is between 3 and 96,', 'each of the three infiltrative channels have sections of one foot or more along their length without an upright interconnecting infiltrative surface interconnecting any of the three infiltrative channels to a neighboring infiltrative channel;, 'a first, second, and third, infiltrative channel,'}a first separation spacer, the first separation spacer having a length, the length of the first separation spacer positioned between exterior geotextile of the first infiltrative channel and exterior geotextile of the second infiltrative channel, and the first separation spacer configured to provide a spacing between the first infiltrative channel and the second infiltrative channel, the first separation spacer configured so as not to convey wastewater from the first infiltrative channel to the second infiltrative channel via the first separation spacer;a second separation spacer, the second separation spacer positioned between exterior geotextile of the second infiltrative channel and exterior geotextile of the third infiltrative channel, and the second separation spacer configured to provide a spacing between the second infiltrative channel ...

SELF-REGENERATING BIOFILTER

The present invention is a self-regenerating biofilter. The biofilter tank receives untreated water through an intake inlet, filters it through a filtration mass and expels purified water through an output outlet. The filtration mass includes gravel and activated carbon layers separated by a mesh screen. A compressed air line is located below the mesh screen. Periodically, the biofilter self-cleans by opening a flush valve that expels a flush water stream carrying debris. The biofilter self-regenerates by periodically stopping filtration for a time, allowing biological matter left on the activated carbon to degrade into biomass. Periodically, the biofilter removes and flushes out biomass by application of water or a combination of air and water. 120-. (canceled)21. A method for using a self-regenerating biofilter apparatus to purify water containing contaminants , said method comprising the steps of:receiving an untreated water stream into a biofilter tank through an intake inlet,filtering said untreated water stream through a filtration mass to transform said untreated water stream into a purified water stream, wherein said filtration mass removes water contaminants by straining/screening, adsorption and/or biological remediation,expelling the purified water stream through an output outlet connected to a second channel;periodically stopping filtration for a time by stopping receiving the untreated water stream; opening a flush valve; draining a flush water stream through the flush valve; closing the flush valve wherein biodegradable contaminants in said untreated water stream provide food for microorganisms in said filtration mass and become biomass during a controlled time period, andperiodically performing a biomass removal wherein said self-regenerating biofilter receives an influx of untreated water stream through said intake inlet, opening said flush valve, and draining a biomass debris containing flush water stream through said flush valve.22. The method ...

System and method for waste treatment

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

EDUCTOR-BASED MEMBRANE BIOREACTOR

A process for treating domestic wastewater may include directing wastewater into a tank containing a membrane filter and mixed liquor. The process may include recirculating wastewater and mixed liquor from a top end of the tank into a bottom end of the tank via a recirculation conduit. The process may include introducing a flow of wastewater and mixed liquor from the recirculation conduit into an aeration device and drawing ambient air into the aeration device using the flow of wastewater and mixed liquor from the recirculation conduit. The process may also include drawing wastewater and mixed liquor proximately surrounding the aeration device into the aeration device using the flow of wastewater and mixed liquor from the recirculation conduit. The process may include aerating a mixture of wastewater and mixed liquor with the ambient air below the membrane filter. 120.-. (canceled)21. A process for treating domestic wastewater comprising:pumping wastewater into a tank containing a membrane filter and mixed liquor;recirculating wastewater and mixed liquor from a top end of the tank into a bottom end of the tank via a recirculation conduit;pumping a flow of recirculated wastewater and mixed liquor from the top end of the tank into a mixing channel of an aeration device via the recirculation conduit;drawing ambient air into the mixing channel of the aeration device using the flow of wastewater and mixed liquor from the recirculation conduit;drawing wastewater and mixed liquor proximately surrounding the aeration device into the mixing channel of the aeration device using the flow of wastewater and mixed liquor from the recirculation conduit; andgenerating bubbles in the mixing channel with the wastewater, mixed liquor, and ambient air.22. The process of claim 21 , wherein the aeration device is disposed in the tank.23. The process of claim 21 , wherein the aeration device is disposed in a side tank fluidly connected with the tank.24. The process of claim 21 , wherein ...

Anaerobic Reactor for Wastewater Treatment

The present invention relates to an anaerobic reactor for the treatment of industrial and other wastewaters at psychrophilic temperatures, the reactor comprising a mixing chamber in which is located, during use, a granular sludge fluidised bed, the reactor further comprising a biofilm chamber fed from the mixing chamber and housing a biofilm colonised pumice-based carrier material, and a separation chamber in fluid communication with the biofilm chamber and in which treated effluent and biogas produced within the reactor are separated. 1. An anaerobic reactor for treating liquid effluent at psychrophilic temperatures , the reactor comprising a hydroxyl , aluminum , manganese , sodium , potassium , calcium , iron and/or magnesium ion releasing biofilm carrier material for effecting , in use , the biologically-mediated attenuation of phosphate from the effluent.2. An anaerobic reactor according to in which the carrier material comprises a pumice-based material.3. An anaerobic reactor according to comprising a fluid inlet; a mixing chamber supplied by the inlet; a biofilm chamber in fluid communication with the mixing chamber within which the biofilm carrier material is located; and a separation chamber in fluid communication with the biofilm chamber.4. An anaerobic reactor according to comprising a recirculation chamber disposed between the mixing chamber and the biofilm chamber; and at least one recirculation line permitting the recirculation of effluent and/or biogas from the separation chamber to the recirculation chamber.5. An anaerobic reactor according to comprising a unidirectional valve disposed between the mixing chamber and the biofilm chamber and arranged to permit fluid flow from the mixing chamber directly or indirectly into the biofilm chamber.6. An anaerobic reactor according to comprising a unidirectional valve disposed between the biofilm chamber and the separation chamber and arranged to permit fluid flow from the biofilm chamber into the separation ...

APPARATUS AND METHODS FOR REDUCING NUTRIENTS IN TREATING WASTEWATER

The present invention relates to apparatus, methods, and applications for treating wastewater, and more particularly to biological processes for removing pollutants from wastewater. This invention further relates to apparatus and methods for growing microbes on-site at a wastewater treatment facility, and for economically inoculating sufficient microbes to solve various treatment problems rapidly 195to . (canceled)96. A method of treating wastewater in a wastewater treatment plant using microbes , while minimizing the growth phase of the microbes in the wastewater treatment plant , the method comprising:a. providing an on-site fermentation system at a wastewater treatment plant for treating a wastewater, wherein the wastewater contains pollutants; the fermentation system comprising: a main tank comprising a mixing apparatus and a heater; a transfer pump and line for transferring a treatment batch for direct application to wastewater in the wastewater treatment plant;b. adding an inoculum, nutrients and water to the main tank; wherein the inoculum contains a first concentration of microbes;c. growing the microbes in the main tank to provide a treatment batch;whereby the treatment batch contains a second concentration of microbes; wherein the first concentration is at least 100 time smaller than the second concentration;d. directly applying an amount of the treatment batch to the wastewater; whereby sufficient numbers of microbes are introduced into the wastewater to avoid the need for a growth phase of a biomass in the wastewater;e. whereby the treatment batch reduces the pollutants in the wastewater, without the need for a growth phase of a biomass in the wastewater; and,f. thereby avoiding a need for addition of supplemental nutrients to the wastewater.97. The method of claim 96 , wherein the level of pollutants is reduced to at or below the NPDES permit requirements for the wastewater treatment plant.98. The method of claim 97 , wherein the supplemental nutrients ...

BIOCONVERSION PROCESSES AND APPARATUS

Bioconversion processes are disclosed in which two or more biocatalysts including microorganisms or isolated enzymes that are substantially irreversibly retained in the interior of an open, porous, highly hydrophilic polymer are used in a common aqueous medium. In one exemplary embodiment, one biocatalyst produces a chemical product that is a substrate to at least one other biocatalyst. In another exemplary embodiment, the feed includes two or more substrates and one biocatalyst bioconverts at least one substrate and another biocatalyst bioconverts at least one other substrate. This aspect is particularly useful for treating water including disparate contaminants by metabolic degradation in a bioreaction zone including multiple types of biocatalysts. 1. A metabolic process comprising: i. at least one of the biocatalysts is capable of bioconverting at least one substrate to at least one of an intermediate chemical and a sought chemical product,', 'ii. at least one other biocatalyst is capable of bioconverting at least one substrate or intermediate chemical to a chemical product or intermediate chemical product,', a solid structure of hydrated hydrophilic polymer defining an interior structure having a plurality of interconnected major cavities having a smallest dimension of between about 5 and 100 microns and an HEV of at least about 1000, and', 'a population of microorganisms substantially irreversibly retained in the interior structure, said microorganisms being in a concentration of at least about 60 grams per liter based upon the volume defined by the exterior of the solid structure when fully hydrated,, 'iii. at least one of said biocatalysts having'}, 'iv. at least one of the biocatalysts provides a chemical product;, 'a. introducing at least one substrate into a bioreactor containing an aqueous medium wherein the aqueous medium contains at least two biocatalysts whereinb. maintaining the aqueous medium under metabolic conditions suitable for the bioconversion ...

Methods And Materials For Microorganism Capture

Material complexes that capture biologicals and methods of synthesizing and using such complexes composed of fluid-insoluble material and a receptor are provided herewith. The fluid-insoluble material has reactive functionality on its surface, including hydroxyl, amino, mercapto or eposy functionality material. The material can be agarose, sand, textile, or any combination thereof. The receptor is selected from the group consisting of mono-and poly-saccharides, heparin, or any combination thereof. Also provide are methods whereby releasing the captured biologicals and is controllable. 131-. (canceled)32. A method for separating a biological from a fluid sample comprising:mixing the fluid sample comprising the biological with a material complex comprising at least one hydroxyl-, amino-, mercapto or epoxy-containing material that is fluid-insoluble and at least one receptor selected from lactose, lactose derivative, mono- or poly-saccharide, heparin, chitosan, or any combination thereof, wherein the receptor is bound to the material via a linker;separating the biological from the fluid sample by immobilizing the biological to the material complex; andphysically separating the immobilized biological from the fluid sample by filtration, decantation, or a combination thereof while the biological remains immobilized to the material complex.33. The method of claim 32 , wherein the linker is a polymer comprising polyethylene glycol claim 32 , polyethylenimine claim 32 , polyvinylpyrrolidone claim 32 , acrylics claim 32 , acrylonitrile-butadiene-styrene claim 32 , polyacrylonitrile claim 32 , acetals claim 32 , polyphenylene oxides claim 32 , polyimides claim 32 , polystyrene claim 32 , polypropylene claim 32 , polyethylene claim 32 , polytetrafluoroethylene claim 32 , polyvinylidene fluoride claim 32 , polyvinyl chloride claim 32 , polyethylenimine claim 32 , polyesters claim 32 , polyethers claim 32 , polyamide claim 32 , polyorthoester claim 32 , polyanhydride claim 32 , ...

MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP

A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes () or a set of membrane modules () and a device () for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes () to dislodge fouling materials therefrom. 1. A method of cleaning a membrane surface immersed in a liquid medium and disposed within a membrane module of an array of membrane modules comprising:introducing a gas to a chamber of a device positioned below the membrane surface, a single device positioned below each single module in the array of membrane modules and each single module in the array of membrane modules associated with a single device, such that the liquid medium in the chamber is displaced downward by the gas until a hydraulic seal is broken, whereupon a substantial portion of the gas introduced into the chamber is released to the membrane surface as a bubble slug.2. The method of claim 1 , wherein the bubble slug is drawn rapidly up through a tube positioned within the device and having a first end in fluid communication with the membrane surface.3. The method of claim 2 , wherein the tube has a second end in fluid communication with the liquid medium such that the liquid medium enters the second end following the release of the bubble slug.4. The method of claim 2 , wherein a volume of the gas introduced to the chamber displaces a sufficient volume of the liquid medium such that a level of the liquid medium reaches an opening in the tube.5. The method of claim 1 , wherein the gas is introduced to an upper portion of the chamber.6. The method of claim 1 , wherein introducing the gas includes introducing the gas continuously.7. The method of claim 1 ...

SUBMERGED MEMBRANE FILTRATION SYSTEM USING RECIPROCATING MEMBRANE

Provided is a reciprocating submerged membrane filtration apparatus including: a membrane tank comprising a submerged membrane and configured to intake influent wastewater to be treated, the influent wastewater being filtered through the submerged membrane to produce treated water; and a reciprocation apparatus configured to move the membrane to create an inertia force which shakes foulants off from the submerged membrane under oxygen-deficient conditions, wherein the submerged membrane comprises a microfiltration (MF) membrane or an ultrafiltration (UF) membrane. 1. A reciprocating submerged membrane filtration apparatus comprising:a membrane tank comprising a submerged membrane and configured to intake influent wastewater to be treated, the influent wastewater being filtered through the submerged membrane to produce treated water;a reciprocation apparatus configured to move the submerged membrane to create an inertia force which shakes foulants off from the submerged membrane under oxygen-deficient conditions;an anaerobic digester configured to biologically treat influent wastewater containing an organic compound by anaerobic digestion under anaerobic conditions to produce sludge and to feed a supernatant above the sludge to the membrane tank; anda high-rate digester disposed upstream of the anaerobic digester and configured to mechanically agitate influent wastewater containing an organic compound in a mixer, to heat the influent wastewater by a sludge heater to produce intermediate sludge and to feed the intermediate sludge to the anaerobic digester, in which the high-rate digester comprises a two-stage anaerobic digester together with the anaerobic digester.2. The reciprocating submerged membrane filtration apparatus of claim 1 , wherein the submerged membrane comprises a microfiltration (MF) membrane or an ultrafiltration (UF) membrane.3. The reciprocating submerged membrane filtration apparatus of claim 1 , wherein the submerged membrane is configured to be ...

MEMBRANE BIOREACTOR SYSTEM USING RECIPROCATING MEMBRANE

The present invention relates to membrane bioreactor (“MBR”) system that includes a mechanical membrane reciprocation system to reduce or eliminate membrane fouling. The disclosed MBR system can be operated with higher flux and lower fouling than MBR systems using air scouring. Furthermore the system can remove nitrogen and phosphorous with one RAS and one or no internal recirculation line. The membrane can be reciprocated by a low RPM motor connected to a pulley via belt to rotate rotor to convert rotational motion into reciprocating motion of membrane. Various mechanical means can also be employed to create the reciprocating motion. 1. A membrane reciprocation system comprising:a membrane configured to be submerged in a tank of a membrane bioreactor system; anda reciprocating apparatus configured to move the membrane, that is submerged in the tank, in a horizontal reciprocating motion with respect to the tank, in order to reduce membrane fouling.2. The membrane reciprocation system according to claim 1 , wherein the tank is one of a membrane tank or an aerobic tank.3. The membrane reciprocation system according to claim 1 , further comprising a slidable frame that is connected to the membrane claim 1 , wherein the reciprocating apparatus is connected to the slidable frame so that the reciprocating apparatus causes the slidable frame to undergo the horizontal reciprocating motion.4. A method of reducing membrane fouling of a membrane in a sequencing batch reactor claim 1 , comprising:submerging a membrane in a membrane tank of the sequencing batch reactor;mechanically move the submerged membrane, by a reciprocating apparatus, in a horizontal reciprocating motion with respect to the membrane tank while the membrane is submerged in the membrane tank;returning activated sludge, using recirculation lines, from the membrane tank to an anoxic tank and an anaerobic tank of the sequencing batch reactor.5. A sequencing batch reactor that eliminates a settling cycle ...

Floating Treatment Bed for Plants

Contaminating material is extracted from a body of water by providing a floating bed on which plants such as Cat Tails can be grown with their roots hanging into the body of water over an area where extraction of contaminating material from the body of water is required, growing the plants to take up the contaminating material from the body of water and harvesting the upstanding plant mass by moving the bed to a harvesting machine which cuts away the plant mass leaving at least part of the root mass to continue growing into a new season. The bed can be returned to a location for the next season. 1. A method for extraction of contaminating material from a body of water comprising:forming a floating bed on which terrestrial plants can be grown with their roots hanging into the body of water;locating the floating bed over an area where extraction of contaminating material from the body of water is required;growing the terrestrial plants so as to form a root mass in the water and an upstanding plant mass;growing the terrestrial plants to take up the contaminating material from the body of water;and harvesting the upstanding plant mass leaving at least part of the root mass to continue growing into a new season;wherein there is provided a step of agitating a bed of the body of water in the area of the floating bed to lift the contaminating material to the roots;wherein equipment used for agitation is positioned into the water from the floating bed which is arranged at a water surface such that the floating bed where the terrestrial plants are grown thereon is in spaced relation above the bed of the body of water which includes sediment containing contaminating material.2. The method of wherein the contaminating material is phosphate in lake water.3. The method of wherein the bed is agitated by aeration.4. The method of wherein the bed is agitated by pumping water.5. The method of wherein the bed is agitated by stirring the water.6. The method of wherein the floating bed ...

Septic System

A system and method includes an aeration subsystem that excites enzymes in the liquid waste passing through the septic system along with a bypass system that directs liquid waste during power outages. The bypass system utilizes a mechanically activated bypass valve moved by a float. The aeration subsystem includes a compressor section that compresses the liquid waste. The method includes mixing enzymes into the fluid waste material, compressing the fluid waste material with the compressor, injecting air into the compressed fluid waste material, and determining whether the fluid waste material is at a desired cleanliness, and if not, recirculating the fluid waste material through the compressor. 1. A system for treatment and storage of fluid waste material , the system comprising:a bypass system;a first septic system for storage of fluid waste material; anda first treatment system;wherein a level of fluid waste material in the bypass system controls whether the fluid waste material enters the first septic system or the second septic system.2. The treatment system of claim 1 , the bypass system comprising:a tank;a pump; anda bypass valve mechanically controlled by a float.3. The system of claim 2 , further comprising:a sensor configured to activate the pump when fluid waste material is detected in the tank.4. The system of claim 1 , the first treatment system comprising:a first tank having an inner cavity adapted to hold the fluid waste material; a housing having an internal cavity adapted to receive the fluid waste material;', 'a compressor section positioned within the housing, the compressor section being adapted to compress the fluid waste material; and', 'an injector section in fluid communication with the inner cavity of the housing, the injector section being adapted to inject air into the compressed fluid waste material;, 'an aeration subsystem positioned with the cavity of the first tank, the aeration system being in fluid communication with the fluid waste ...

SYSTEMS AND METHODS FOR AUTOMATED CONTROL OF MIXING AND AERATION IN TREATMENT PROCESSES

A system and method for automatically controlling aeration and mixing processes are disclosed. 1. A system for automatically controlling a mixing process based upon at least one dynamically-measured parameter , comprising:a probe for dynamically measuring at least one parameter of a substance,a control panel in communication with the probe, wherein the control panel receives data from the probe representing the measurement of the at least one parameter,a programmable logic controller in communication with the control panel, anda mixer in communication with the control panel, wherein the mixer is connected to a source of pressurized gas and is configured to release bursts of pressurized gas into the substance when activated,wherein the system is configured to activate the mixer upon measurement of a first mixing parameter characteristic of a dynamically-measured parameter and to deactivate the mixer upon measurement of a second mixing parameter characteristic of a dynamically-measured parameter.2. The system of wherein the substance is wastewater that is stored in a containment unit.3. The system of wherein the mixer comprises a nozzle in connection with a source of pressurized gas claim 1 , wherein the nozzle comprises a fluid passage having a plurality of outlets claim 1 , and wherein the fluid passage is configured to release pressurized gas from the outlets in intermittent bursts to mix the wastewater.4. The system of further comprising at least one secondary first mixing parameter characteristic and at least one secondary second mixing parameter characteristic claim 1 , wherein in response to detection or calculation of the secondary first mixing parameter characteristic the mixer is activated claim 1 , and wherein claim 1 , in response to detection or calculation of a secondary mixing parameter characteristic claim 1 , the mixer is deactivated.5. The system of further comprising a second probe for dynamically measuring at least one second parameter of the ...

WASTEWATER TREATMENT WITH PRIMARY TREATMENT AND MBR OR MABR-IFAS REACTOR

Wastewater is treated though primary treatment of the water by way of a micro-sieve to produce a primary effluent and primary sludge. There is secondary treatment of the primary effluent by way of a membrane bioreactor (MBR) or an integrated fixed film activated sludge (IFAS) reactor to produce a secondary effluent and a waste activated sludge. The micro-sieve may have openings of 250 microns or less, for example about 150 microns. In a process, a gas transfer membrane is immersed in water. Pressurized air flows into the gas transfer membrane. An exhaust gas is withdrawn from the gas transfer membrane and used to produce bubbles from an aerator immersed in the water. 1. A process for treating water comprising the steps of ,a) providing primary treatment of the water by way of a micro-sieve to produce a primary effluent and primary sludge;b) providing secondary treatment of the primary effluent by way of a process having a suspended biomass, a membrane suspended biomass or both, to produce a secondary effluent and a waste sludge; and,c) treating a portion of the activated sludge in the micro-sieve.2. The process of wherein step b) comprises treatment with a suspended biomass.3. The process of wherein the suspended biomass comprises aerobic microorganisms or is suspended in water maintained under aerobic conditions.4. The process of wherein the micro-sieve comprises a rotating belt.5. The process of wherein return activated sludge is recycled to the secondary treatment step.6. The process of further comprising a step of treating the thickened primary sludge in an anaerobic digester.7. The process of wherein the micro-sieve has openings of 250 microns or less.8. The process of wherein primary treatment removes less than 40% of the chemical oxygen demand of the water.9. The process of wherein primary sludge and waste activated sludge are treated in an anaerobic digester.10. The process of wherein secondary treatment is provided by way of a membrane bioreactor (MBR).11. ...

MIXING SYSTEMS AND METHODS OF MIXING

A system for mixing and mixing processes and structures are disclosed. In addition a nozzle used for mixing is disclosed. 1. A process for mixing in a wastewater treatment system comprising simultaneously introducing at least two intermittent bursts of pressurized gas from a nozzle and into a containment unit in a wastewater treatment system.2. The process of wherein the at least two intermittent bursts of pressurized gas are introduced into the containment unit simultaneously from opposing distal ends of a fluid passage of the nozzle.3. The process of wherein the at least two intermittent bursts of pressurized gas are introduced at or near the bottom of the containment unit.4. The process of wherein the containment unit comprises wastewater disposed therein.5. The process of wherein the process comprises simultaneously introducing at least two intermittent bursts of pressurized gas from a second nozzle.6. The process of wherein the at least two intermittent bursts of pressurized gas from the nozzle and the at least two intermittent bursts of pressurized gas from the second nozzle are introduced substantially simultaneously.7. The process of wherein the at least two intermittent bursts of pressurized gas from the nozzle and the at least two intermittent bursts of pressurized gas from the second nozzle are introduced intermittently.8. The process of further comprising supplying pressurized gas to the nozzle through a header and a first line.9. The process of further comprising supplying pressurized gas to a second nozzle through a second header and introducing at least two intermittent bursts of pressurized gas to the containment unit from the second nozzle.10. The process of wherein the nozzle introduces at least two intermittent bursts of pressurized gas to the containment unit at a distinct interval from the intermittent bursts of pressurized gas from the second nozzle.11. The process of wherein the intermittent bursts of pressurized gas from the second nozzle is ...

MBR FRAME

Embodiments described methods, systems and apparatuses to utilize a plurality of membrane cartridges and a housing frame comprising a lightweight corrosion resistant material (e.g., non-corrosive metals, non-corrosive composites such as PVC, HDPE and FRP). The anti-corrosive properties of said frame allow of it to be re-used (e.g., with replaced MBR filters). Said MBR frame may be used in a single function or multi-function wastewater treatment container. Said container may also include a corrosion resistant liner coupled to interior portions of each of the base and side walls of the basin, an inlet to receive wastewater treatment influent into the basin, and an outlet to output wastewater treatment process material from the basin. 1a wastewater treatment container;a basin included in the wastewater treatment container, the basin to include a base, a gravitational top opposite the base, a plurality of side walls, a membrane bioreactor (MBR) basin compartment, and a second basin compartment executing a different wastewater treatment function;a corrosion resistant liner coupled to interior portions of each of the base and side walls of the basin;an MBR frame included in the MBR basin compartment to include a plurality of membrane cartridges and comprising a lightweight, corrosion resistant, non-metal composite material;an inlet to receive wastewater treatment influent into the basin; andan outlet to output wastewater treatment process material from the basin; wherein the gravitational top of the basin includes a component to restrict vertical movement of the MBR frame.. An apparatus comprising: This application is a continuation of U.S. application Ser. No. 13/605,374, filed Sep. 6, 2012, which claims priority to Provisional Application No. 61/531,552 filed on Sep. 6, 2011, each of which is hereby incorporated by reference in its entirety.Membrane bioreactors (MBRs) are frequently used for treating wastewater. An MBR combines biological treatment processes with ...

FILTER UNIT

The invention relates to a filter unit (), having: 1. A filter unit , having:at least one warp-knitted spacer which comprises a first and a second cover layer having in each case a multiplicity of openings which are delimited by peripheral regions, wherein threads extend from the peripheral regions of the first cover layer to peripheral regions of the second cover layer, and wherein the at least one warp-knitted spacer is rolled, twisted, and/or at least in one portion is compressed.2. The filter unit as claimed in claim 1 ,wherein the at least one warp-knitted spacer in at least one portion in the transverse direction or perpendicularly to its cover layers is compressed and a fluid to be filtered flows along between the cover layers of the at least one warp-knitted spacer.3. The filter unit as claimed in claim 1 ,wherein the filter unit has the at least one warp-knitted spacer as a filter body, and wherein the filter unit has a receptacle for receiving the warp-knitted spacer as the filter body, wherein the receptacle is configured in such a manner that the at least one warp-knitted spacer which is received in the receptacle in at least one portion is compressible in the transverse direction or perpendicularly to its cover layers, and wherein in a filtering operation of the filter unit the liquid to be filtered and/or the filtered liquid substantially flows through the warp-knitted spacer between the first and second cover layers.4. The filter unit as claimed in claim 3 ,wherein the receptacle is provided with an inlet funnel portion which tapers off in such a manner that the at least one warp-knitted spacer is compressed transversely to its cover layers.5. The filter unit as claimed in claim 3 ,wherein the receptacle is provided with an outlet funnel portion which expands in such a manner that the at least one warp-knitted spacer unfolds, or which tapers off in such a manner that the at least one warp-knitted spacer is compressed transversely to its cover layers.6 ...

Subsurface sewage disposal system

A subsurface sewage disposal system includes leaching members oriented substantially vertically and positioned in a non-linear arrangement. A first volume is defined within the leaching members by a permeable enclosure configured to provide temporary storage of an effluent introduced by a distribution pipe. A plurality of balancing pipes is configured in a non-linear arrangement to redistribute the effluent from one leaching member to another leaching member. As the effluent rises within one leaching member, the effluent is redistributed by the balancing pipes to another leaching member. In the event of a failure of the distribution pipe, the plurality of balancing pipes is configured to bypass the distribution pipe and redistribute the effluent to the leaching members downstream of such failure.

MEMBRANE MODULE SYSTEM WITH BUNDLE ENCLOSURES AND PULSED AERATION AND METHOD OF OPERATION

A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure. The module may have a header, with a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header. The module may also have a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle. The module may further have an enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle. The gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous bubble occupies substantially the entire cross-sectional area of the enclosure as it flows along the bundle. 1. A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure , the module comprising:a header;a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header;a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle, wherein the gaseous bubble travels through an air tube that starts from the gasification device and goes into the header; andan enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle;wherein the gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous ...

ANAEROBIC SUSPENDED GROWTH TREATMENT OF CONTAMINATED WATER

A system may include a reactor, in which an anaerobic environment exists, that includes a slurry of at least contaminated water and a mixed bacterial culture of facultative bacteria and anaerobic bacteria. The mixed bacterial culture may be suspended within the slurry. The contaminated water may include contaminants associated with a non-metal, a metal, or a metalloid. The mixed bacterial culture may react with the contaminated water to reduce or remove the contaminants from the contaminated water to create a treated slurry. The reactor may output the treated slurry. The system may also include a filtration device to receive the treated slurry; remove, from the treated slurry, the mixed bacterial culture and the contaminants, reduced or removed from the contaminated water, to create treated water; and output the treated water. The system may also include an aeration device to add dissolved oxygen to the treated water, and output the treated water. The system may also include a reaction device where iron or aluminum salts are added to remove phosphorous, selenite, arsenate, or other contaminants which adsorb onto iron or aluminum oxyhydroxide solids. The system may also include a filtration device to remove the solids from the water, and output the treated water. 1. An anaerobic treatment system to treat contaminated water , the treatment system comprising: a slurry of contaminated water comprising one or more contaminants selected from the group consisting of a perchlorate, a metal, or a metalloid; and', metal-reducing bacteria; and', 'a mixing system that mixes the slurry to maintain the mixed bacterial culture and/or other solids within the one or more reactors in suspension; and, 'a mixed bacterial culture suspended within the slurry and not attached to a physical substrate associated with attached growth technology, wherein the mixed bacterial culture comprises], 'a reactor consisting of one or more chambers providing an anaerobic environment, the one or more ...

Membrane Filter System

A guide member for directing gas bubble flow along a member surface, the guide member having first and second side edges defining a channel for gas bubbles to flow along, the channel having an open bottom end through which the gas bubbles can enter the channel and an open top end through which the bubbles can exit the channel, and a diverting means adjacent the channel bottom end arranged to direct at least some of the incident gas bubbles in a first direction towards the channel bottom end. A membrane module assembly and a membrane filter system including the guide member. 111-. (canceled)12. A membrane module assembly for treating water , the membrane module assembly comprising:at least one guide member comprising-first and second side edges defining a channel for a plurality of gas bubbles to flow along, the channel having an open bottom end through which the plurality of gas bubbles enter the channel and an open top end through which the bubbles exit the channel; and a diverting means adjacent the channel bottom end configured to direct a first portion of the plurality of gas bubbles in a first direction towards the channel bottom end; andat least one membrane module having at least one membrane surface, the membrane module being sized and shaped to be placed adjacent the guide member in use so that the channel is adjacent the membrane surface.13. A membrane module assembly according to claim 12 , wherein the membrane module comprises an attachment means for detachably attaching the membrane module to the guide member or to a housing.14. A membrane module assembly according to claim 12 , the membrane module having two membrane surfaces claim 12 , one on each side of a backing plate.15. A membrane module assembly according to claim 14 , wherein the backing plate includes at least one support strut for further supporting the membrane surfaces.16. A membrane module assembly according to claim 12 , the membrane module having at least one effluent outlet on a first ...

SLUDGE DEHYDRATION SYSTEM AND SLUDGE DEHYDRATION METHOD

A sludge dehydration method includes a recovery process of recovering specific material as a dewatering aid from sludge generated in a sewage treatment process and a dewatering process of performing solid-liquid separation on sludge in which the dewatering aid recovered in the recovery process and dewatering target sludge are mixed. 1. A sludge dehydration method comprising:recovery by recovering specific material as a dewatering aid from sludge generated in a sewage treatment; anddewatering by performing solid-liquid separation on sludge in which the dewatering aid recovered in the recovery and dewatering target sludge are mixed.2. The sludge dehydration method according to claim 1 , wherein preparation by fragmenting a solid in the sludge to obtain prepared sludge;', 'separation by separating hardly decomposable organic matter and easily decomposable organic matter from the prepared sludge; and', 'extraction by continuously extracting hardly decomposable organic matter having specific properties as the dewatering aid from the separated hardly decomposable organic matter., 'the recovery comprises3. The sludge dehydration method according to claim 2 , wherein the preparation comprises performing preparation to obtain the prepared sludge having properties allowing fiber components being the hardly decomposable organic matter and the easily decomposable organic matter to be separated from each other.4. The sludge dehydration method according to claim 3 , wherein the preparation comprises performing preparation to obtain the prepared sludge by adding dilution water to the solid.5. The sludge dehydration method according to claim 3 , wherein the preparation comprises performing preparation to obtain the prepared sludge by crushing the solid into fine pieces.6. The sludge dehydration method according to claim 2 , wherein the separation comprises washing the solid prepared in the preparation with washing water and removing fiber components smaller than the hardly ...

Carrier insert for accommodating and maintaining the biofilm culture of fluid cleaning structures

The invention relates to a carrier insert for accommodating and maintaining the biofilm culture of fluid cleaning structures, which contains a spatial web made of staple fibres using the hosiery method. The characteristic feature of the invention is that the web ( 10 ) has internal textile units ( 11, 12, 13, 14, 15, 16 ) joining each other in intermediate complete nodal points ( 20, 21, 22, 23 ) and situated between the complete nodal points ( 20, 21, 22, 23 ) and external textile ( 17, 18 ) units situated along the edges ( 10 a ) of the web ( 10 ), where in the case of at least a part of the complete nodal points ( 20, 21, 22, 23 ) there is an even number of internal textile units ( 11, 12, 13, 14, 15, 16 ) guided into the given complete nodal point ( 20, 21, 22, 23 ), the internal sides ( 17 a, 18 a ) of the external textile units ( 17, 18 ) situated along the edges ( 10 a ) of the web ( 10 ) are connected to a complete nodal point ( 20, 21, 22, 23 ) each, and the external sides ( 17 b, 18 b ) of the external textile units ( 17, 18 ) are provided with connection points ( 24, 25 ) for joining the structure ( 1 ), and via the connection points ( 24, 25 ) the web ( 10 ) is attached to the structure ( 1 ) in a fixed position.

Wastewater Re-Use Systems

A wastewater reuse system has a wastewater treatment system connected to a dwelling for receiving wastewater therefrom. The wastewater treatment system has a pump tank with an outlet that can be connected to a central wastewater collection system and/or a re-use recipient of treated wastewater such as an irrigation system. A monitoring system connected 1. A wastewater reuse system operatively connectable to a dwelling for humans , said dwelling being located at a site , said reuse system comprising:a pretreatment tank connectable to said dwelling to receive black water comprising human waste solids from said dwelling and allowing settling of said solids in said black water to produce an at least partially clarified black water;a holding tank for receiving said at least partially clarified black water from said pretreatment tank;a transfer line from said holding tank, said transfer line being operable to be connected to a sewage line forming part of a central wastewater treatment system;a drip irrigation system on said site, said drip irrigation system being the sole method of disposing of said partially clarified black water on site; anda pump connected to said holding tank and selectively operable for pumping said at least partially clarified black water from said holding tank to said drip irrigation system.2. The wastewater reuse system of claim 1 , wherein there is a disinfectant system for disinfecting said at least partially clarified black water pumped from said holding tank claim 1 , to produce disinfected partially clarified black water which can be used for toilet flushing and recycled through said reuse system.3. The wastewater reuse system of claim 1 , wherein there is gravity flow outlet between said holding tank and said transfer line.4. The wastewater reuse system of claim 1 , wherein there is a filter between said pump and said drip irrigation system.5. The wastewater reuse system of claim 1 , wherein said transfer line comprises a gravity flow line. ...

Polyhydroxyalkanoate production during wastewater treatment

A wastewater treatment process elicits microorganisms to convert a waste stream/organic resource to intracellular biopolymer polyhydroxyalkanoate (PHA). The process includes (i) waste stream/organic resource composition feed criteria, (ii) configuration coupled with operational parameters, and (iii) PHA-laden biomass separation and stabilization. A waste stream/organic resource capable of producing enhanced levels of PHA may be selected based on a combination of criteria, which may include short chain fatty acid concentration, protein concentration, polysaccharides concentration, and total suspended solids concentration. The waste stream is introduced into an aeration basin or sequencing batch reactor upon a specific configuration and operated under various parameter combinations for selecting/enriching microorganisms capable of producing PHA. The PHA-laden biomass is separated and stabilized for downstream PHA related product beneficial uses. The present process achieves concurrent wastewater treatment and PHA production, where PHA level (of more than 10% on a cell-weight basis) otherwise could not be obtained.

WATER TREATMENT SYSTEM AND WATER TREATMENT METHOD

Provided are a water treatment system and a water treatment method capable of downsizing a facility and inexpensively producing freshwater. A water treatment system includes: a first reverse osmosis treatment device for separating wastewater into desalinated permeate water and concentrated wastewater; a mixing unit for mixing the separated concentrated wastewater and intake seawater; a second reverse osmosis treatment device for separating mixed water obtained by mixing the concentrated wastewater and the seawater into desalinated permeate water and concentrated mixed water; and a return pipe for returning a portion of the separated concentrated mixed water to the mixing unit. The water treatment method includes the following steps: mixing intake seawater with wastewater; separating the mixed water into permeate water and concentrated mixed water; re-mixing a portion of the concentrated mixed water with the mixed water; and producing freshwater by re-separating the re-mixed water into permeate water and concentrated mixed water. 12.-. (canceled)3. A water treatment method comprising the following steps:mixing intake seawater with wastewater or treated wastewater;separating mixed water obtained by mixing the seawater with the wastewater or the treated wastewater into desalinated permeate water and concentrated mixed water by reverse osmosis treatment;re-mixing a portion of the concentrated mixed water with the mixed water obtained by mixing the seawater with the wastewater or the treated wastewater; andproducing freshwater by re-separating mixed water re-mixed with the concentrated mixed water into desalinated permeate water and concentrated mixed water by reverse osmosis treatment.4. The water treatment method according to claim 3 ,wherein the intake seawater is mixed with concentrated water which has been previously separated from wastewater or treated wastewater by reverse osmosis treatment.5. The water treatment method according to claim 3 ,wherein an amount of ...

COMPOSITIONS FOR REMOVING HYDROCARBONS AND HALOGENATED HYDROCARBONS FROM CONTAMINATED ENVIRONMENTS

A composition for in situ remediation of soil and groundwater contaminated with hydrocarbons. The composition includes an adsorbent, such as activated carbon, capable of adsorbing the hydrocarbons. The composition also includes a sulfate-containing compound that releases sulfate over a period of time, e.g., a time-release compound that may include calcium sulfate. The composition includes a nutrient system for promoting growth of facultative anaerobes, in the soil or provided in the composition itself. In some embodiments, the nutrient system includes a sulfide scavenging agent such as iron sulfate. In the same or other embodiments, the nutrient system includes at least one of a nitrogen source and a phosphorous source. 1. A composition for in situ bioremediation of soil contaminated with hydrocarbons , comprising:an adsorbent capable of adsorbing the hydrocarbons during the in situ bioremediation of the soil;a non-toxic compound that releases, into the soil, sulfate over a period of time; anda nutrient system for promoting growth of facultative anaerobes, when the composition is placed in the soil as part of the in situ bioremediation, capable of metabolizing the hydrocarbons.2. The composition of claim 1 , wherein the adsorbent comprises activated carbon.3. The composition of claim 1 , wherein the sulfate-containing compound comprises calcium sulfate.4. The composition of claim 1 , wherein the nutrient system includes a sulfide scavenging agent.5. The composition of claim 4 , wherein the sulfide scavenging agent comprises iron sulfate.6. The composition of claim 1 , wherein the nutrient system includes a nitrogen source.7. The composition of claim 6 , wherein the nitrogen source comprises an ammonium salt.8. The composition of claim 1 , wherein the nutrient system includes a phosphorous source and wherein and the phosphorous source comprises at least one of a monobasic alkali-metal phosphate and ammonium phosphate.9. The composition of claim 1 , wherein the ...

Self-Deploying Float

A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

EQUIPMENT FOR INJECTING A GAS INTO A CESSPOOL

A floating equipment, for injection of a gas into liquid effluents or waste water, and more particularly of a gas rich in oxygen into a basin from the surface, comprising the following elements: 1. A floating equipment , for injection of a gas into liquid effluents or waste water , comprising the following elements:{'b': 8', '6, 'a driving device, intended to be disposed over the liquid, provided with a vertical output shaft (), equipped at its end with a propeller () immersed in the liquid; and'}{'b': 5', '7', '9, 'a pre-mixing device () comprising an injection device () positioned above or below a mobile aerator () with inclined blades, the propeller being situated at the end of the shaft, under a pre-mixing reactor,'}wherein the injection device is of torus shape and is formed by an assembly of porous elements.2. The equipment of claim 1 , wherein the assembly of porous elements is of porous candle filter type or porous plate type or perforated plate type.3. The equipment of claim 2 , wherein the porous elements are situated in a volume defined by a vertical cylinder centered on the vertical axis of the propeller claim 2 , the vertical cylinder having an outside diameter equal to at least 3 times the diameter of the propeller and a height equal to at least three times the diameter of the propeller.4. The equipment of claim 1 , wherein the propeller has a pumping flow rate number NQp that is in the range 0.3 to 1 claim 1 , where:Qp=NQp×N×D3; where Qp is the pumping rate of the propeller, N the rotation speed of the propeller, and D the diameter of the propeller.5. The equipment of claim 1 , wherein the injection device is a torus claim 1 , and positioned in a circle inscribed in the diameter of the propeller claim 1 , the torus being positioned at a distance between 0.01 to 1.5 times the diameter of the propeller above the propeller.6. The equipment of claim 1 , wherein the injection device is a torus claim 1 , and positioned in a circle inscribed in the diameter ...

CONTAINER-TYPE APPARATUS WITH A SUSPENDED PARTICLE SYSTEM FOR WASTEWATER TREATMENT

A container-type apparatus for wastewater treatment with a suspended particle system, including one or multiple biological reaction zones. The biological reaction zones can be facultative, anaerobic, anoxic, and aerobic and at least one of the biological reaction zones is a suspended particle system. Particles in the suspended particle system act as the carrier of microbiota and offer better conditions for them to grow. The apparatus adopts a box structure, such as a container type, which is convenient to move, flexible to assemble, and can be used multiple times. Based on actual requirements, this apparatus can also be a structure type. The suspended particle system can increase the concentration of microorganisms significantly, improve the ability to bear impact load, produce less sludge, and without sludge expansion. 1. A container-type apparatus for wastewater treatment with a suspended particle system , comprising:two or more interconnected facultative biological reaction zones, said two or more facultative biological reaction zones including any one or combination of at least one anaerobic zone, at least one of an anoxic zone and aerobic zone, and at least one of said facultative biological reaction zones including a suspended particle system comprised of any one or combination of light particles and heavy particles, said any one or combination of light particles and heavy particles having microorganisms located on surfaces thereof, a density of said light particles being lower than a density of the wastewater, a density of said heavy particles being higher than the density of said wastewater; anda gas injection mechanism for injecting gas into enclosures containing said suspended particle system, said gas injection mechanism being located near a bottom of said enclosures to inject gas upwardly into said liquid phase containing said any one or combination of light particles and heavy particles, and wherein by injecting gas from near the bottom light particles ...

MULTI-STAGE IMMERSION-TYPE MEMBRANE SEPARATION DEVICE AND MEMBRANE SEPARATION METHOD

The present invention provides a submerged type membrane separation device and a membrane separation method which allow long-term stable filtration. In the submerged type membrane separation device including a membrane module having membrane units stacked on top of each other in stages, in each of which flat sheet membrane element each having a separation membrane are arranged, the membrane module is constructed of various membrane units differing in sludge-filtration resistance or pure-water permeation resistance, whereby it becomes possible to extend a device operation period of time lapsing before transmembrane plugging occurs, or equivalently, the necessity to clean membranes arises. Further, it also becomes possible to design to synchronize timings with which a plurality of membrane units require cleaning. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. A membrane separation method using a multi-stage submerged type membrane separation device which comprises: a membrane module having a plurality of membrane units stacked vertically in stages , in each of which a plurality of flat sheet membrane elements each having a sheet-shaped separation membrane are arranged; a water-to-be-treated storage tank in which water to be treated is stored and the membrane module is placed in a state of being submerged in the water to be treated; and an air diffuser installed beneath the membrane module , in which the membrane unit placed at the lowermost stage is lower in sludge-filtration resistance or pure-water permeation resistance than any of the membrane units placed at stages higher than the membrane unit placed at the lowermost stage.8. The membrane separation method according to claim 7 , wherein a flow rate of permeate passing through the separation membrane of the membrane unit placed at the lowermost stage in the membrane module is controlled so as to become lower than a flow rate of permeate passing through the separation membrane of ...

Wastewater Treatment System

A dual tank wastewater treatment system for performing an extended aeration process to provide a natural, biological breakdown of the organic matter in wastewater using, for example, but not limited to, a continuously operating air pump and diffuser bar system for aeration purposes and a flexible media filter. The air pump used is stronger than conventional air pumps and the diffuser bar is designed to provide more efficient oxygen transfer than conventional diffuser systems by mixing air against the system flow to provide better mixing and longer retention time in the aeration process. The flexible media filter provides a final filtration and polishing of the effluent before it passes through a flow equalization apparatus and exits the system. 1. A wastewater treatment apparatus comprising:a first chamber including an inlet opening defined in an inlet wall and a lower chamber portion;a second chamber including an outlet opening defined in an outlet wall and a lower chamber portion;a common wall between said first and second chambers, the common wall having a bottom opening in a lowermost portion and the common wall bottom opening providing immediate and direct fluid communication between the lower chamber portion of the first chamber and the lower chamber portion of the second chamber;a diffuser bar assembly having a substantially rectangular shape with a length about 4 times a width of the assembly and being oriented with the length extending from the inlet wall of the first chamber toward the common wall and the diffuser bar assembly including a plurality of holes spaced substantially evenly around opposite sides of the diffuser bar assembly;a continuously operating air pump being connected to a proximal end of an air line and the air line being in gaseous communication with the diffuser bar assembly; andan outlet filter assembly connected to and in fluid communication with the outlet opening, the outlet filter assembly comprising:a brush filter assembly ...

Process for the Treatment of Biological Materials and Wastewater

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. 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 value being less than the first total solids value.9. The process of claim 1 , further comprising a nitrication-denitrification bioreactor in communication with the waste stream.10. The process of claim 9 , further comprising a second nitrification-denitrification bioreactor in communication with the waste stream.11. The process of claim 9 , wherein the process environment further ...

WASTEWATER TREATMENT PLANT ONLINE MONITORING AND CONTROL

A method of operating a waste water treatment plant (WWTP) having at least one of an aerobic digester (AD) and a membrane bioreactor (MBR) is described. The method of operating AD is comprised of monitoring and controlling AD in real-time using an online extended Kalman filter (EKF) having a online dynamic model of AD. The EKF uses real-time AD measured data, and online dynamic model of AD to update adapted model parameters and estimate model based inferred variables for AD, which are used for AD control by AD control system having supervisory and low-level control layers. The method of operating MBR is similar to that of AD. The supervisory control ensures the WWTP satisfying the effluent quality requirement while minimize the operation cost. A WWTP having at least one of an AD or MBR is disclosed. The method of operating a WWTP can be implemented using a computer. 1. A method of monitoring and controlling the operating conditions of a membrane bioreactor (MBR) , comprising:providing a MBR; providing a MBR offline extended Kalman filter (EKF) having an offline dynamic model of said MBR, providing a MBR online EKF having an online dynamic model of said MBR; wherein said offline and said online dynamic models of said MBR are comprised of states, process material balances, energy balances, bio-chemical reaction kinetics, estimated parameters, and adapted model parameters; wherein said adapted model parameters are a subset of said estimated parameters;', 'providing historical operation data for said MBR, wherein said historical operation data is comprised of historical measured input data, historical measured output data, and historical laboratory analysis data;', 'identifying said estimated parameters of said offline dynamic model of said MBR using said MBR offline EKF and said historical operation data for said MBR;', 'importing said estimated parameters from said offline dynamic model of said MBR into said online dynamic model of said MBR;', 'providing real time ...

Organics and nutrient recovery from anaerobic digester residues

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.

Membranes with tunable selectivity

Some embodiments comprise membranes comprising a first layer comprising a porous graphene-based material; a second layer comprising a porous graphene-based material; a channel positioned between the first layer and the second layer, wherein the channel has a tunable channel diameter; and at least one spacer substance positioned in the channel, wherein the spacer substance is responsive to the environmental stimulus. In some cases, the membranes have more than two layers of porous graphene-based material. Permeability of a membrane can be altered by exposing the membrane to an environmental stimulus. Membranes can be used in methods of water filtration, immune-isolation, timed drug release (e.g., sustained or delayed release), hemodialysis, or hemofiltration.

Hollow fiber membrane module with miniskeins in miniheaders having a zig-zag configuration

A module of hollow fiber membranes is re-configured to break up and rearrange a skein into multiple miniskeins each having no more than 250 fibers, all lower miniheaders of the miniskeins being slidably held for vertical movement in vertical slots in an aerator box. Upon shrinkage of the fibers, the lower miniheaders rise in the box. Each miniskein has from 2-12 planar ordered arrays in which the fibers are adhesively secured, preferably without potting the lower miniheaders. The lower ends of the fibers are dead-ended and lower miniheaders are positioned sequentially, transverse to the longitudinal axes of the upper header and the aerator box; its upper miniheader is potted in a choice of configurations. This configuration of miniskeins provides a packing density in each miniheader, whether upper or lower, not attainable in a prior art skein; the use of an aerator box having an area (footprint) no greater than 35% of that of the upper header, provides an effective packing density in the aerator box which provides exceptionally effective use of sparging air and readily removable sludge which drops through the bottom of the aerator box.

Dissolved Oxygen Sensor

The present invention relates to a dissolved oxygen sensor capable of measuring dissolved oxygen of various water qualities for all water qualities from ultrapure water to waste water or the like, preventing the inflow of bubbles or foreign substances in an airtight structure, which interfere with the measurement, and preventing a diaphragm from deforming by an external force of fastening. More specifically, the dissolved oxygen sensor comprises: an airtight unit closely inserted into the outer surface of an electrode unit inside a measurement cap coupled to a lower part of a sensor body, and preventing the inflow of the bubbles and foreign substances; and a measurement unit located in a lower part of the airtight unit, preventing the shape of the diaphragm from deforming by contact with the electrode unit or the external force due to fastening, and protecting the diaphragm by several forces applied from the outside when being measured. The dissolved oxygen sensor can maintain accuracy of measurement since transformation does not easily occur in an extreme measuring environment such as high temperature due to outstanding mechanical strength and excellent durability.

Methods of making purified water from the fischer-tropsch process

The Fischer-Tropsch (FT) process creates significant amounts of water. This FT produced water contains significant amounts of organic impurities. The invention provides methods of treating FT produced water. Surprisingly, it was discovered that the FT produced water could be successfully treated in a membrane bioreactor (MBR) according to relatively simple and more efficient steps; for example, by adjusting the pH of the water in the range of 4.2 to 5.8 or treating the FT produced water in a stripper where the distillate product stream and a reflux stream returning to the stripper have the same composition. In a related aspect, water compositions are described.

Wastewater treatment process and system

A process and system for treating wastewater is described. The invention degrades sludge produced by treatment of the wastewater to reduce or eliminate the need for sludge dewatering and disposal. The invention also reduces the amount of nutrient additives required to sustain the aerobic wastewater treatment process. In one embodiment the invention includes the steps of (a) providing an aerobic treatment system receiving a supply of the wastewater; (b) treating a supply of the sludge to rupture microbial cells present therein to produce treated sludge having an increased liquid:solid ratio and an increased degradation potential in comparison to untreated sludge; (c) conveying a supply of the treated sludge to the aerobic treatment system; and (d) substantially degrading the supply of treated sludge in the aerobic treatment system. The treated sludge may optionally be subjected to anaerobic digestion prior to delivery to the aerobic treatment system.

Dissolved Oxygen Sensor

The present invention relates to a dissolved oxygen sensor which is convenient for maintenance, and is capable of protecting and preventing a diaphragm from deforming by being assembled and disassembled for replacement and management depending on a measured characteristics of the quality of water. More specifically, the dissolved oxygen sensor comprises: a cartridge where an electrode unit connected to a signal line installed is formed; a cartridge unit constituting a measurement unit which prevents the diaphragm from deforming by an installation force, and an external force of water flow generated upon close contact with an electrode unit when being installed in a lower part of the cartridge is variously formed to match measurement conditions depending on the type and characteristics of the quality of water to be measured; and the cartridge unit is composed to be replaced when measuring waste water and ultrapure water, sealed while being unattached due to contact with the outer surface of the measurement unit when being installed inside a sensor body, and allowed to easily replace the cartridge wherein the electrode unit is installed or the measurement unit by being sealed. The dissolved oxygen sensor can provide convenience of management and reduce the maintenance costs since the cartridge or the measurement unit individually or the entire cartridge unit can be disassembled for replacement and repairment.

Membranes for wastewater-generated energy and gas

An example includes an apparatus, method, and system for producing and extracting a gas from a wastewater fluid. The apparatus can include a membrane including at least one hollow fiber, the at least one hollow fiber configured to convey a gas extracted from a wastewater fluid. Bacteria can be immobilized within the membrane, and the bacteria configured to produce the gas during treatment of the wastewater fluid.

System and membrane for wastewater-generated energy and gas

Systems and methods for producing and extracting a gas from a wastewater fluid including multiple sheets or layers that form a composite membrane. The composite membrane includes a sandwich structure in which a dry matrix layer is surrounded by a first layer including a first immobilized bacteria and a second layer including a second immobilized bacteria. The first immobilized bacteria and the second immobilized bacteria can be configured to produce a gas from one or more compounds in a wastewater fluid. The dry matrix layer can be configured to receive the gas from the first and second layers, and the gas can be extracted from the membrane. The hydrophobic coatings can be disposed between the dry matrix layer and one or both of the first and second layers. An adhesive interface can be disposed between the dry matrix layer and one or both of the first and second layers.

Membrane cleaning with pulsed airlift pump

A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes ( 6 ) or a set of membrane modules ( 5 ) and a device ( 11 ) for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes ( 6 ) to dislodge fouling materials therefrom.

Anaerobic reactor for wastewater treatment

The present invention relates to an anaerobic reactor ( 10 ) for the treatment of industrial and other wastewaters at psychrophilic temperatures, the reactor comprising a mixing chamber ( 12 ) in which is located, during use, a granular sludge fluidized bed, the reactor further comprising a biofilm chamber ( 16 ) fed from the mixing chamber and housing a biofilm colonized pumice-based carrier material, and a separation chamber ( 18 ) in fluid communication with the biofilm chamber and in which treated effluent and biogas produced within the reactor are separated.

Organics and nutrient recovery from anaerobic digester residues

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.

Ballasted sequencing batch reactor system and method for treating wastewater

A ballasted sequencing batch reactor system for treating wastewater including one or more sequencing batch reactors. A weighting agent impregnation subsystem is configured to mix biological flocs and weighting agent to form weighted biological flocs. A weighting agent recovery subsystem is configured to recover weighting agent from the weighted biological flocs and reintroduce the recovered weighting agent to the weighting agent impregnation subsystem.

Surface-treated calcium carbonate for binding and bioremediating hydrocarbon-containing compositions

The invention relates to a surface-treated calcium carbonate for binding and bioremediating hydrocarbon-containing compositions, to a method for binding and bioremediating hydrocarbon-containing compositions as well as to the use of surface-treated calcium carbonate for binding and bioremediating hydrocarbon-containing compositions and to a composite material comprising the surface-treated calcium carbonate and a hydrocarbon-containing composition.

Method and apparatus for the bio-remediation of aqueous waste compositions

Numerous different types of waste compositions generally in an aqueous environment are bio-remediated under aerobic conditions utilizing highly diverse and multiple microorganisms within a reactor. The process is carried out with the microorganisms attached or bound by a variety of different surface characteristics to packing substrates, located within the reactor, having high surface areas and high porosity in the form of small micropores. Multiple different types of substrates are generally utilized that efficiently dissolve air into the water, as well as to maximize the concentration and diversity of types of microorganisms. Reactors are utilized that desirably have tubes therein containing the multiple types of packings and microorganisms and contain at least one perforated chimney through which air can flow and optimize dissolving oxygen into the aqueous environment of the various bio-remediation stages.

Wastewater treatment device

Provided is a wastewater treatment device that can reduce the fluoride ion concentration in industrial wastewater to improve the recovery rate of purified water. A wastewater treatment device ( 1 ) includes a biological treatment unit ( 3 ) that decomposes and eliminates organic matter in wastewater by means of microorganisms, and a desalinization unit ( 4 ) that is provided downstream of the biological treatment unit ( 3 ) and eliminates salt-forming ionic components from within the wastewater. A pretreatment unit ( 2 ), which removes components, such as heavy metals or oil contained in the wastewater, which inhibit the function of the biological treatment unit ( 3 ) or the desalinization unit ( 4 ), is provided upstream of the biological treatment unit ( 3 ), and the pretreatment unit ( 2 ) is provided with a fluoride concentration reduction unit that reduces the concentration of fluoride ions in the wastewater by eliminating the fluoride ions from within the wastewater.

Electrodialysis module and electrodialysis system

An electrodialysis module includes at least one base unit. The base unit includes a working tank, a first ion-exchange membrane, a second ion-exchange membrane, at least one first electrode, and at least two second electrodes. The first ion-exchange membrane and the second ion-exchange membrane are located in the working tank. The first ion-exchange membrane and the second ion-exchange membrane together divide the working tank into two electrode compartments and a desalination compartment therebetween. The at least one first electrode is disposed in the desalination compartment. The at least two second electrodes are disposed in each of the electrode compartments, respectively, in which the at least two second electrodes and the at least one first electrode have different polarities.

Wastewater treatment for the production of microbial biomass

A method of producing microbial biomass include providing a wastewater stream and determining the concentration of micronutrients selected from the group consisting of aluminum, boron, cobalt, magnesium, manganese, and zinc, and any combination thereof, in the wastewater stream. The method also includes determining the biological oxygen demand (BOD) normalized dose of the micronutrients, and modulating the concentration of at least one micronutrient in the wastewater stream to provide a micronutrient-modulated wastewater stream. The method further includes growing microbial biomass in the micronutrient-modulated wastewater stream.

Systems and processes for treatment of high total dissolved solids wastewater

There are provided systems and processes which enable the efficient biological treatment of high salt concentration fluid streams, e.g., spent caustics, to reduce COD concentrations in the fluid streams.

Water treatment device

Provided is a water treatment device that suppresses the degradation of electrodes in a capacitive de-ionization treatment section and is capable of maintaining high water treatment capability. The water treatment device includes an activated carbon treatment section that receives an inflow of water having a total organic carbon concentration of 100 mg/l or less and adsorbs and removes organic matters contained in the water; and, on the downstream side of the activated carbon treatment section, a capacitive de-ionization treatment section including a pair of electrodes to which voltages having polarities opposite to each other are applied, a flow path, and ion exchange membranes. Ions contained in the water are adsorbed to the electrodes with voltages applied thereto, and voltages reverse to the voltages at the time of ions adsorption are applied to the electrodes to release the ions from the electrodes.

Aerobic, bioremediation treatment system comprising floating inert media in an aqueous environment

An aerobic treatment system includes a plurality of highly porous, high surface area, inert, synthetic, inorganic, or natural material particles, having a specific gravity of less than 1.0 that float on an enclosed aqueous environment whereby plants and/or microbes can be grown thereon and/or animals such as fish can be raised therein. The inert particles trap air bubbles and nutrients for the growth of diverse types of plants, animals, or microbial systems, which enable phyto treatment of an aqueous waterbody with the ability to limit the growth of unwanted plant and algae such as blue-green algae. The above aerobic bio treatment system contains desirably bioremediation media having one or more microorganisms that are able to withstand system shocks while minimizing energy usage associated with aeration. The system can generally be utilized in any aqueous environment such as waste water and/or polluted water in an enclosed area such as a container, tank, pond, lake, or the like.

Moving bed biofilm reactor for waste water treatment system

In one embodiment, a method includes receiving wastewater having a first total organic carbon (TOC) at a wastewater treatment system comprising a reactor system, wherein the reactor system comprises an anaerobic moving bed biofilm reactor (MBBR) and an aerobic MBBR. The method further includes treating the wastewater in the anaerobic MBBR, wherein the anaerobic MBBR comprises first bio-carriers configured to degrade at least a portion of the first TOC in the wastewater to generate a first treated wastewater and biogas, wherein the first treated wastewater has a second TOC that is less than the first TOC. The method also includes providing the biogas to an external system.

Material for reducing the contents of polluting and/or unwanted substances in a liquid

A material for reducing the content of polluting and/or unwanted substances in a liquid includes at least one polymeric and/or inorganic base, suitable to be immersed in the liquid, having at least a surface, whereto is bonded at least one catalyst of the degradation reaction of inorganic salts in gaseous substances. The catalyst, whose function is to reduce the energy required for the activation of said reaction and to accelerate its progress, is an enzyme preferably selected among the lyase group, the hydrolase group and the oxidoreductase group.

Method and system for treating waste material

A method of treating wastewater in a wastewater treatment system is disclosed. The wastewater treatment system receives an influent of the wastewater and having at least a first bioreactor and a second bioreactor each having therein bacteria for treating the waste material. The method comprises: monitoring a load parameter being indicative of a load on the second bioreactor; responsively to a monitored value of the load parameter, controlling at least one flow rate selected from the group consisting of (i) a flow rate from the influent to the second bioreactor through the first bioreactor, and (ii) a flow rate from the influent directly to the second bioreactor, so as to maintain a generally constant and predetermined load on the second bioreactor.

System and method for waste treatment

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

Apparatus and method for water treatment via vertical water movement through a funnel

An apparatus for treating water in a reservoir includes a funnel. A support assembly supports the funnel in a lengthwise upright orientation when the funnel is submerged. A water moving arrangement is arranged to move water through the funnel in a direction from an inlet at an upper end of the funnel towards an outlet at lower end of the funnel.

Simultaneous anoxic biological phosphorus and nitrogen removal

Methods and systems are provided for treating wastewater to simultaneously remove nitrogen, carbon, and phosphorus. The process includes an anoxic tank that receives at least two streams, including plant influent wastewater and return activated sludge. These streams are mixed in the anoxic tank to promote phosphorus release and fermentation of particulate and dissolved organic matter. The mixed liquor is transferred to an aerated tank having low dissolved oxygen concentrations to promote development of phosphorus-release bacteria that is eventually recycled to the anoxic tank by way of the return activated sludge. Simultaneous nitrification, denitrification, and phosphorus release occur in the aerated tank. A membrane tank separates treated effluent from activated sludge in a membrane tank.

System and method for wastewater treatment

A system that recycles waste so that the effluent coming out of the system actually equals a potable water standard with essentially no contaminated sludge. The solids in wastewater are subjected to aeration and enzymes in a digester for a period of time. The cleanest portion of the water from the digester is then clarified. Sludge, as well as scum, from the clarifier is vacuumed back to the digester. Clear water from the clarifier is delivered to a Recycling stage for filtering to remove suspended solids. When the recycling process housing reaches saturation, a back-flushing process with clean water sends all of the captured suspended solids back into the Digester.

Process for treating wastewater

The present invention relates to a process for treating wastewater. The process includes the steps of (a) mixing different constituents of said wastewater inside a container, (b) withdrawing said wastewater from container, (c) feeding said wastewater to a bioreactor, (d) contacting said wastewater with an isolated microorganism or an isolated microorganism consortium, (e) aerating a suspension of said wastewater with said isolated microorganism or said isolated microorganism consortium, (f) withdrawing said suspension of said wastewater with said isolated microorganism or said isolated microorganism consortium from said bioreactor, (g) filtering receiving flow from step (f) to separate a concentrate stream from a permeate stream, (h) returning said concentrate stream to said bioreactor and (i) removing permeate stream.

Aerobic treatment/clarifier system for use in an aerobic wastewater treatment system

An aerobic treatment/clarifying system for use in an aerobic wastewater treatment system. The system comprises a structure which defines at least one compartment, at least one aerobic treatment chamber and at least two clarifying chambers being formed in the compartment.

Assembly bracket and mounting system for aeration element

An aeration element for gasification or aeration of liquids includes an essentially flattened, rigid support element having a substantially oval cross-section and corrugated outer surfaces, the corrugated outer surfaces including ridges defining grooves therebetween; a threaded opening for receiving a cooperating fitting for connection to an air supply; and a flexible membrane of elastomeric material disposed around the support element. An assembly bracket includes upper and portions that can be cooperatingly attached to one another about the aeration element for securing the aeration element to a floor of a tank or pool. The assembly bracket includes through-going passages for enabling water to circulate around the bracket and reduce buoyancy of the assembly. Two aeration elements of shorter lengths can be positioned adjacent two one another, secured within assembly brackets, and connected at adjacent ends, so that one of the aeration elements functions as a conduit to the other aeration element when air is supplied into one of the aeration elements.

Process for reducing the production of sludge by municipal or industrial wastewater purification plants, and equipment for the implementation thereof

A process for reducing the production of sludge by municipal or industrial wastewater purification plants, comprising a step of mesophilic or thermophilic anaerobic digestion ( 20 ), or anaerobic digestion combining these two operating modes, of a stream of sludge to be treated ( 1 ), and at least one biological solubilization anaerobic treatment step ( 30 ); the process comprises, upstream of the anaerobic digestion step, a step of dehydration ( 10 ) of the sludge to be treated, followed by a step of mixing ( 15 ) the dehydrated sludge with a recirculated fraction of sludge that is more liquid, originating from recycling of the digestion ( 20 ), and/or from the anaerobic treatment step ( 30 ), and/or centrates originating from a final dehydration ( 50 ) of the treated sludge, wherein the recirculation rate is chosen such that the mixture has a dryness suitable for digestion, this mixture then being directed towards the digestion.

Method and apparatus for treatment of water-borne contaminants

A lightweight, bioplastic, mobile, floating oil spill mechanical/biological recovery system is dimensionally compact, and quick to assemble. The floating platform can be readily positioned within any waterborne oil/contaminant spill area. After assembly, this platform or apparatus can be directed by either a hand-held digital radio control transmitter or GPS directed mechanism. A lower, multi-roller slip-on belt is designed to be mounted over a circular base support aeration hub assembly with alternating/spaced slotted ring water drainage separators. The belt and aeration assemblies dip bioaugmentation product into the contaminant site thereby exposing microorganisms to both oxygen and target contaminant for treatment and metabolism. Various mechanisms for enhancing metabolic activity of the bioaugmentation product operate in tandem with the primary belt and aeration assemblies to promote effective contaminant metabolism and overall treatment regimes.

Super-large scale photon capture bioreactor for water purification and operation method therefor

본 발명이 공개한 정수용 대규모 광자 에코 캡처 생물 반응기는 폐쇄적인 입체공간을 구비하고, 상기 입체공간 내부의 복수 개의 평면층에 각기 우회하는 수로(2)가 설치되어 있으며, 수로(2)에는 입수구(12)와 배수구(13)가 설치되어 있고, 복수 개의 수로(2)에는 일정한 간격을 두고 복수 개의 여과구간(4)이 설치되어 있으며, 복수 개의 여과구간(4)의 수면에는 수면에서 재배하는 식물(5)이 있고, 수중에는 수생동물(6)과 미생물(7)이 있으며, 수면에서 재배하는 식물(8)의 위쪽에는 높이를 조절할 수 있는 식물생장 조사 라이트(8)가 설치되어 있고, 위층의 수로(2)의 배수구(13)의 하단부에는 임펠러(15)가 설치되어 있으며, 임펠러(15)는 발전기(16)와 연결되어 있고, 임펠러(15) 아래쪽의 아래쪽에는 다음 층의 수로의 입수구가 설치되어 있으며, 정화가 필요한 물은 먼저 입체구축공간의 최상층의 입수구에 진입한다. 본 발명의 주요 장점은 질량을 쉽게 제어할 수 있고 반응효율을 향상시킬 수 있으며, 부지면적이 적고, 투자를 생략할 수 있고, 관리하기 편리하며, 작동비용이 적고, 생태생산공정에 오염이 없으며, 경제적 이익이 현저하다. The large-scale photon echo capture bioreactor for purified water disclosed by the present invention has a closed three-dimensional space, and a plurality of bypass channels are provided in a plurality of planar layers inside the three-dimensional space, and the water channel 2 has an inlet ( 12) and drains 13 are provided, the plurality of water passages 2 are provided with a plurality of filter sections 4 at regular intervals, and the water surface of the plurality of filter sections 4 plants grown on the surface of the water (5), aquatic animals (6) and microorganisms (7) in the water, the plant growth irradiation light (8) with adjustable height is installed above the plant (8) grown on the water surface, the upper floor An impeller 15 is installed at the lower end of the drain 13 of the water channel 2, and the impeller 15 is connected to the generator 16, and below the impeller 15, an inlet of the water channel of the next layer is provided. Is installed and requires water purification Ipsugu first entered the building on the top floor of the three-dimensional space. The main advantages of the present invention are that the mass can be easily controlled, the reaction efficiency can be improved, the land area is small, the investment can be omitted, the management is convenient, the operating cost is low, and the ecological production process is free of pollution. The economic ...

Bio-filter for waste water digestion

The present disclosure relates to a biofilter for wastewater digestion, in which a high degree of contaminant removal is obtained with a single device. In order for these levels to be achieved, the following are essential: the shape of the biofilter, the supply/discharge ratio of the biofilter, the position and height of each of the components and, finally, the combination of two packed zones, namely: a random zone, and a zone arranged in the form of ringed or corrugated tube bundles.

Method for deammonification process control using pH, specific conductivity, or ammonia

A method and a system as described herein, including a method and system of treating ammonium containing water in a deammonification MBBR process where partial nitritation and anaerobic ammonium oxidation may occur simultaneously in a biofilm, or in an integrated fixed film activated sludge process where partial nitritation takes place in a suspended growth fraction and anaerobic ammonium oxidation occurs in a biofilm. The method and system include controlling airflow to the reactor to achieve a target pH, a target alkalinity, a target specific conductivity, and/or a target ammonium concentration in the reactor or in the effluent.

Apparatus for treating wastewater

The present invention relates to apparatus, methods, and applications for treating wastewater, and more particularly to biological processes for removing pollutants from wastewater. This invention further relates to apparatus and methods for growing microbes on-site at a wastewater treatment facility, and for economically inoculating sufficient microbes to solve various treatment problems rapidly.

Biofiltration with enhanced sludge handling

A water treatment system including a media filter having a filter chamber with a volume to accommodate filter media and a sludge outlet and a charge chamber for storing air. The charge chamber is fluidly connected to the filter chamber and has: (i) an air outlet for admitting air into the filter chamber; and (ii) an air inlet. The system also includes a trigger for selectively allowing the passage of air from the charge chamber air outlet into the filter chamber upon reaching a trigger release point and a sludge concentration/storage volume having at least one wall extending upward to form an upper opening. This wall has a height substantially above the trigger release point and substantially isolates the sludge volume from the charge chamber, except for the upper opening. Finally, an inlet to the sludge volume is at a height which allows pressure within the media filter during a filtration stage to move water above the wall height and into the sludge volume.

Reverse-osmosis-membrane device and method for operating the same

Provided are reverse-osmosis-membrane device capable of treating raw water including a large amount of membrane foulants, such as MBR-treated water, with stability while preventing a reduction in the amount of permeate, and a method for operating the reverse-osmosis-membrane device. The raw water includes a high-molecular organic substance having a molecular weight of 10,000 or more at a concentration of 0.01 ppm or more. The reverse-osmosis-membrane device includes a reverse-osmosis-membrane element including a membrane unit, the membrane unit including a reverse osmosis membrane having a thickness of 0.1 mm or less, a feed spacer disposed on a surface of the reverse osmosis membrane, and a permeate spacer disposed on the other surface of the reverse osmosis membrane. The reverse-osmosis-membrane device is operated at a permeation flux of 0.6 m/d or less.

Method and device for purifying domestic or industrial water

A method and a device for the continuous purification of a domestic or industrial water stream. After passing through a biological reactor to obtain a sludge of between 4 and 12 g/l of Dry Solids, the method involves feeding a series of chambers separated by restrictions at a flow rate q, injecting air into a second chamber at a flow rate Q>q, in order to obtain an emulsion, injecting a flocculant into a third chamber, and recovering the degassed emulsion in a drain pan. Flocculated and aerated sludge floats on top, such that the remaining liquid centrate has a Dry Solids content less than 100 mg/l and has a positive redox potential >50 mV and a value greater than 100 mV relative to the redox potential of the sludge at the inlet of the chambers, and is reinjected upstream from or into the biological reactor.

Water denitrification

The described implementations relate to water denitrification. One method obtains nitrate levels in influent and effluent of a moving bed media filter and determines carbon levels in the effluent. The method also doses carbon feedstock into the influent based on both the nitrate levels and the carbon levels.

Method and apparatus for bio-electrically generating power from organic ingredients of a waste water

For bio-electrically generating electric power from organic ingredients of a waste water flowing in a flow direction, an anode is immersed in the waste water in a first spatial area, and oxygen is supplied to a cathode which is electrically connected to the anode and arranged in a second spatial area delimited from the first spatial area by means of a proton-permeable membrane. A voltage between the anode and the cathode is increased by a DC/DC converter located at the anode and the cathode, and a further voltage between a further anode in said or a further first spatial area and a further cathode in said or a further second spatial area is increased by a further DC/DC converter located at the further anode and the further cathode. A DC voltage link is charged with the DC/DC converter and the further DC/DC converter connected in parallel to the DC voltage link.

Systems and methods for continuous measurement of an analyte

Described herein is a system to provide continuously measurements of an analyte present in a fluid sample, particularly dissolved oxygen in wastewater. The system comprises a sample chamber absent of ambient light to contain the sample and in many embodiments employs a non-invasive method of measuring the analyte and determining the change over time in the concentration of the analyte. It is also an aspect of the invention to deliver analyte measurements in real-time and provides the operator with feedback in substantially less time after sample collection than previously accomplished in the field. It is another aspect of the invention to simultaneously or at least in a substantially short period of time thereafter measure temperature to remove initial error encountered at the start of analyte measurement at least until the sample chamber reaches thermal equilibrium.

Methods and apparatuses for adjustable air capture and release

Methods and apparatuses for adjusting an angular orientation of a media unit having an opening are disclosed. The media unit may be secured to a rotating frame. In addition, a rotating frame including multiple media units at different angular orientations is disclosed.

Method for controlling aeration volume in activated sludge

A method for appropriately controlling an aeration volume for activated sludge on which aeration treatment is conducted while DO of an activated sludge mixed liquor in an aeration tank is being adjusted to substantially 0 mg/l (ultralow DO treatment). The method includes the following steps. An aeration volume correlation (G=F(Gr)) between an aeration tank and a measuring device is acquired in advance. A sample of activated sludge mixed liquor taken during ultralow DO treatment operation is temporarily intensely aerated in the measuring device and then aeration is stopped. Based on temporal changes in the measuring device DO value, an oxygen consumption rate Rr and an equilibrium DO value C1 are calculated. An appropriate aeration volume G2* of the testing device is acquired by using an Ea−G relationship formula and the like obtained in advance. An appropriate aeration volume Gr2* of the aeration tank is obtained by using the relationship G=F(Gr).

MBR frame

Embodiments described methods, systems and apparatuses to utilize a plurality of membrane cartridges and a housing frame comprising a lightweight corrosion resistant material (e.g., non-corrosive metals, non-corrosive composites such as PVC, HDPE and FRP). The anti-corrosive properties of said frame allow of it to be re-used (e.g., with replaced MBR filters). Said MBR frame may be used in a single function or multi-function wastewater treatment container. Said container may also include a corrosion resistant liner coupled to interior portions of each of the base and side walls of the basin, an inlet to receive wastewater treatment influent into the basin, and an outlet to output wastewater treatment process material from the basin.

Device for housing beneficial microbes for the purpose of water remediation

A device for the housing and stimulation of underwater microbial activity has a lower inlet end and an upper discharge end, the lower inlet end defining an inlet opening therein, the housing defining multiple channels therein extending to the upper discharge end of the housing, the inlet opening communicating with interconnected channels, following an indirect non linear path between the inlet end opening to a discharge opening defined in the discharge end, so as to disrupt the path of fluid as it travels from the inlet opening to the discharge opening. The device has at least one leg extending from the lower inlet end to keep the device off the bottom of a waterbody floor to limit its susceptibility to clogging from the sediment bottom or growing organics. The leg has sufficient weight to sink to the bottom.

Filter system for removing and/or neutralizing undissolved oils, greases, and salts and/or metal abrasion debris on and in emulsions containing water

A filter system for removing and/or neutralizing undissolved oils, greases, and salts on/in water-containing emulsions from, in particular, tanks and baths that are used to hold and store emulsions, which are used to cool and lubricate workpieces and tools during machining, comprising at least one emulsifier filter, a downstream suction/pressure pump, a unit for gas enrichment, an adhesion filter having an automatic deaerator, a downstream oil-collecting vessel, and a capillary filter, wherein these are combined as a unit, such that the oil/grease film and the emulsion can be mechanically, chemically, and biologically treated.

Electrolysis method, and method and plant for the pretreatment of raw water

The invention relates to an electrolysis method that uses iron particles and an aqueous solution containing sodium hypochlorite. The method is characterized in that said method uses direct current, the iron particles form the anode ( 46 ) and the sodium hypochlorite concentration of the aqueous solution is at least 1 g/L. The invention further relates to a method and to a plant for the pretreatment of raw water for producing water that can then be easily treated in order to produce drinkable water or a so-called technical water that cannot be consumed but that can be used for household, agricultural or industrial applications such as cleaning, washing, laundry, flushing, garden watering or irrigation.

Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods

A hybrid method and system of treating wastewater with reduced energy usage is disclosed. The treatment system has a sorption system, an anaerobic digester that digests or converts at least a portion of the solids or sludge from the sorption system, and an aerobic treatment tank that partially reduces oxygen demand of a portion of the sludge from the sorption tank.

Spiral wound filtration assembly including integral bioreactor

A spiral wound filtration assembly including: i) a pressure vessel comprising a feed port, concentrate port and permeate port; ii) at least one spiral wound membrane module comprising at least one membrane envelop wound around a permeate tube which forms a permeate pathway to the permeate port; and iii) a bioreactor having a cylindrical outer periphery extending along an axis (Y) from a first end to a second end, an inlet located near the first end, and an outlet located near the second end; wherein the spiral wound membrane module and bioreactor are serially arranged within the pressure vessel.

Sewage treatment system having a trickling filter with wash unit

A sewage treatment system, includes a solid-liquid separating apparatus having a first filtering medium packed layer packed with a predetermined filtering medium, configured to separate sewage to be treated into solid components and filtered water by passing the sewage through the first filtering medium packed layer upward, and configured to reversely wash the first filtering medium packed layer by passing the filtered water through the first filtering medium packed layer downward at a predetermining timing; and a trickling filter installed on a latter stage of the solid-liquid separating apparatus, having a second filtering medium packed layer packed with a filtering medium attached with microorganisms, and configured to allow the filtered water to fall into the second filtering medium packed layer by trickling the filtered water onto an upper part of the second filtering medium packed layer to flow out treated water acquired by biotreating the filtered water by the microorganisms.

Fine bubble diffuser assembly

A diffuser assembly includes a flexible diffuser membrane and a diffuser body. The flexible diffuser membrane defines a circumferential bead. The diffuser body defines a circular plate underlying the flexible diffuser membrane, and an edge ring covering a covered portion of the circumferential bead. The edge ring defines an inside surface that conforms to an outside shape of the covered portion of the circumferential bead. The edge ring is integral to the diffuser body. Such a diffuser assembly may provide a disposable diffuser assembly option with many advantages over conventional technologies such as improved ease of installation, lower weight, and lower cost.

Method and apparatus for monitoring and controlling ozonation and aerated filtration using UV and visible spectral measurement and oxidation reduction potential

The present invention relates to a method and system for monitoring and controlling the process train of ozonation and biologically aerated filtration used in water and wastewater treatment. The process monitoring and control can be achieved by online measurement of UV/Vis absorption at one or multiple wavelengths and oxidation/reduction potential values which are compared to predetermined UV absorption and oxidation/reduction values. The air and ozone dosage of the effluent are then adjusted based on the measured values of UV/Vis absorption and oxidation/reduction potential of the effluent.

Wastewater leaching system

Processes and systems for treatment of wastewater are provided. Some of these systems and processes flow wastewater from an upright infiltrative surface into sand or other soil between opposing infiltrative surfaces and provide for aerobic treatment of the wastewater in the sand or other soil between the opposing infiltrative surfaces. Some of these systems and processes may employ spacing connectors positioned and configured to connect neighboring infiltrative channels.