| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 03/30/2005 | CN2688691Y High-efficient cellular aerating head |
| 03/30/2005 | CN2688690Y Water-wheel high-efficient aerator |
| 03/30/2005 | CN2688689Y Membrane biochemical sewage treater |
| 03/30/2005 | CN2688688Y Levelling vadosing aerating biological filtering tank |
| 03/30/2005 | CN2688687Y Recoil water jetter of aerating biological filtering tank |
| 03/30/2005 | CN2688686Y Mechanical-biochemical fecal treater |
| 03/30/2005 | CN1600707A Method for governing arsenic contamination in soil and water body |
| 03/30/2005 | CN1600706A Biological treatment method for wastewater of containing acrylics and esters |
| 03/30/2005 | CN1600705A Method for adjusting and controlling character of mixed liquor in membrane bioreactor for controlling membrane pollution |
| 03/30/2005 | CN1600704A Method of biological reaction of membrane for treating sewage of containing salt |
| 03/30/2005 | CN1600703A Technique for processing dyeing wastewater through organic matter degradation and denitrogenation |
| 03/30/2005 | CN1194913C Wind power aeration and air compression apparatus for sewage purifying treatment |
| 03/30/2005 | CN1194911C Microbial reinforced film biological reactor for waste water purification and recovery |
| 03/30/2005 | CN1194910C Improved oxidation channel city sewage treamtent process |
| 03/30/2005 | CN1194909C Integral equipment for shock wave mass transfer and biochemical anerobic process |
| 03/30/2005 | CN1194908C River mud repair material for sewage treatment |
| 03/30/2005 | CN1194907C Preparation of river mud repair material for sewage treatment |
| 03/30/2005 | CN1194906C Method for cleaning water at water inlet of water works |
| 03/29/2005 | US6872318 Injecting miro-fine bubbles effective for active in situ ground water remediation for removal of dissolved chlorinated hydrocarbon solvents and dissolved hydrocrbon petroleum products |
| 03/29/2005 | US6872313 Domestic wastewater treatment system |
| 03/29/2005 | US6872312 Method of using high molecular weight water soluble polymers in membrane bioreactor systems |
| 03/29/2005 | CA2320525C Facultative landfill bioreactor |
| 03/29/2005 | CA2070248C Process and apparatus for the biological treatment of water effluents |
| 03/24/2005 | WO2005026064A1 A method and a plant for waste water treatment |
| 03/24/2005 | WO2005026063A1 Circular aerator and wastewater treatment apparatus using the same |
| 03/24/2005 | WO2005026062A2 Process and reactor for intensified and energy-efficient, biological (waste-)water treatment |
| 03/24/2005 | WO2005026054A2 Drain and flood wastewater treatment system and associated methods |
| 03/24/2005 | WO2005026052A2 Bionest reactor for the application of anaerobic wastewater treatment and bioenergy recovery |
| 03/24/2005 | WO2004112843A3 Odor control compositions and methods |
| 03/24/2005 | WO2004101447A8 A method of induced froth (foam) formation process and natural purification |
| 03/24/2005 | US20050063963 Culture of Pseuodomonas nitroreducens TX1; utilizing alkylphenol polyethoxylates as a sole source of carbon and energy to grow; pollution control of organic polymers-contaminated water and soil |
| 03/24/2005 | US20050061739 Activated sludge process and apparatus with high biomass concentration using a downflow sludge blanket filtration |
| 03/24/2005 | US20050061738 Reducing thickness and increasing permeability of biomat; temporarily converting to aerobic scouring condtions by forced introduction of ozone into soil absorption field |
| 03/24/2005 | US20050061737 and agricultural waste water; sequenced bioreactor for bioremediation of biological oxygen demand, nitrogen and phosphorous; suspended carrier bioreactors for anaerobic denitrification and aerobic nitrification |
| 03/24/2005 | US20050061725 Membrane bioreactor, process and aerator |
| 03/24/2005 | US20050061721 Water circulation systems for ponds, lakes, and other bodies of water |
| 03/24/2005 | DE10343748A1 Process and assembly to break down suspended organic cell residues arising from activated sludge treatment by brief acceleration through pipe constriction |
| 03/24/2005 | CA2573511A1 Process and reactor for intensified and energy-efficient, biological (waste-)water treatment |
| 03/23/2005 | EP1516857A1 Process and installation for the purification of domestic or agri-industrial effluents by anaerobic digestion |
| 03/23/2005 | EP1516856A1 Membrane separation device for water treatment plants |
| 03/23/2005 | EP1012121B1 Process, using ammonia rich water for the selection and enrichment of nitrifying micro-organisms for nitrification of wastewater |
| 03/23/2005 | CN2687116Y Efficient sewage treatment and methane generator |
| 03/23/2005 | CN2687114Y Connection sealing element for aerator |
| 03/23/2005 | CN2687113Y Composite net filling |
| 03/23/2005 | CN2687112Y Biological filter adsorption cord band for sewage purification |
| 03/23/2005 | CN2687111Y Multipurpose biological trickling tower deodourizing device |
| 03/23/2005 | CN1599699A Sewage treatment plant |
| 03/23/2005 | CN1597578A Water treatment method for realizing drinking water deep purification by fixed bioactive carbon technology |
| 03/23/2005 | CN1597577A Factory waste water zero discharge treatment technology |
| 03/23/2005 | CN1597573A Submersible pushing flow aeration machine |
| 03/23/2005 | CN1597571A Compound type biological flocculating agent two-stage fermentation method |
| 03/23/2005 | CN1597570A Fermentation of special effect bacterial agent and method of treating chemical effluent |
| 03/23/2005 | CN1597569A Culturing method of microbe for high temperature waste water biochemical treatment |
| 03/23/2005 | CN1597568A Method of improving heavy contaminated lake transparency |
| 03/23/2005 | CN1597567A Biological treatment method of coal gas effluent and coking effluent |
| 03/23/2005 | CN1597566A Sewage treatment method using sequential batch type reactor |
| 03/23/2005 | CN1597565A Method of treating coal gas effluent and coking effluent using diatomite and active sludge |
| 03/23/2005 | CN1597564A Technology and special equipment for preparing regenerated water using sewage |
| 03/23/2005 | CN1597563A Water cleaning bacterial agent for industrial seedling growing and breeding circuluted sea water |
| 03/23/2005 | CN1597562A System and method for treating of sewage by combined artificial wet land |
| 03/23/2005 | CN1597545A Phosphorus containing waste water treatment method and its application of recovered phosphorus product |
| 03/23/2005 | CN1596583A Plant irrigation method using waste water |
| 03/23/2005 | CN1194084C Speial strain culture addition method and its equipment |
| 03/23/2005 | CN1193941C Waste water treatment equipment and method with functions of deodorization, antifoaming and intermittent aeration |
| 03/22/2005 | US6869534 Aerobic wastewater digestion unit useful for degrading organic material dissolved or suspended in a wastewater stream |
| 03/22/2005 | US6869533 Heating system and method for prevention of septic system freeze-up |
| 03/22/2005 | CA2459193A1 Anaerobic digester |
| 03/22/2005 | CA2054045C Apparatus for treatment of organic waste water and contactor of use therein |
| 03/17/2005 | WO2005023997A1 Novel microorganism and method of treating organic solid matters with the use of the microorganism |
| 03/17/2005 | US20050056588 Method and apparatus for the treatment of wastewater |
| 03/17/2005 | US20050056304 Parts washing system |
| 03/17/2005 | DE10335961A1 Reactor for up-flow anaerobic sludge blanket water treatment, comprises a gas collection hood with a ridge outlet, and a chicane gas outlet |
| 03/17/2005 | CA2535653A1 Novel microorganism and method of treating organic solid matters with the use of the microorganism |
| 03/16/2005 | EP1301440B1 Immersed fixed bed biological reactor and method for treating liquid effluents |
| 03/16/2005 | EP1282688B1 Ammonia-oxidizing bacteria |
| 03/16/2005 | CN1596224A Aerobic biomass granules for waste water treatment |
| 03/16/2005 | CN1596147A Filter devices and methods of use |
| 03/16/2005 | CN1596072A Oxygen supply water-cooling device, filtering device, and filtering function-equipped water cooling device using them |
| 03/16/2005 | CN1594763A Circulating water flushing ecological toilet and sewage treatment method thereof |
| 03/16/2005 | CN1594746A Aquatic ecology reconstruction method in estuary region |
| 03/16/2005 | CN1594551A Micro-ecological bacteria preparation for rebuilding aquaculture water environment and method for preparing same |
| 03/16/2005 | CN1594550A Method for degradation of linear alkyl benzene sodium sulfonate agrobacterium conn and treatment of water |
| 03/16/2005 | CN1594539A Specific strain for degrading organic waste water of medicine production and its construction method |
| 03/16/2005 | CN1594141A Water culture pasture grass filtering method for sewage of circulating water aquaculture system and plant filter |
| 03/16/2005 | CN1594140A Domestic sewage treatment method by intermittent aeration contact oxidation process |
| 03/16/2005 | CN1594131A Method for treating wastewater containing heavy metal and radioactive metal ions by biological method |
| 03/15/2005 | US6866780 Heated ultrasonic treating device and treating method for suspended matter-containing liquid |
| 03/15/2005 | US6866773 Filtration cartridge |
| 03/15/2005 | CA2481746A1 Method and apparatus for aerating a surface layer in a stratified liquid body |
| 03/10/2005 | WO2005021448A1 Method for treating wastewater in a membrane bioreactor to produce a low phosphorus effluent |
| 03/10/2005 | WO2005021447A1 Equipment for the biological purification of wastewater with methanogenic and hydrolytic anaerobic digestion |
| 03/10/2005 | WO2005021446A1 Method and installation for the biological treatment of water using activated sludge and comprising aeration regulation |
| 03/10/2005 | US20050051482 Flood and drain wastewater treatment system and associated methods |
| 03/10/2005 | US20050051481 Hollow gas transfer fibre arranged in tows and potted into module, for treating wastewater by supplying hydrogen containing gas; oxygen demand; pollution control |
| 03/10/2005 | CA2537384A1 Method for treating wastewater in a membrane bioreactor to produce a low phosphorus effluent |
| 03/09/2005 | EP1194382B1 Method, device and use of said method for biological elimination of metal elements present in an ionized state in water |
| 03/09/2005 | CN2683639Y Real time control apparatus for sewage denitrogenation process by alternative aerobiotic-anoxic activated sludge process |
| 03/09/2005 | CN2683638Y Multistage automatic oxygenating device for sewage treatment |
| 03/09/2005 | CN1590532A Denitrogen bacteria composition and its application |
| 03/09/2005 | CN1590530A Acid resistant saccharomycete and its method of biological removing heavy metal in sudge |