| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 09/26/2002 | US20020134740 Inverted air box aerator and aeration method for immersed membrane |
| 09/26/2002 | US20020134733 Microporous diffusion apparatus |
| 09/26/2002 | US20020134728 Biofilter system and method for treating wastewater |
| 09/26/2002 | US20020134717 In-pipe wastewater treatment system |
| 09/26/2002 | DE10114740A1 Animal cadaver residues are sterilized by alternating aerobic and anaerobic treatment, and passing some of suspended mixture through particle separator in loop |
| 09/26/2002 | DE10114661A1 Aquarium filter / albumen removal unit, comprises a fixed bed and an albumen removal section in a housing, and flow channels |
| 09/25/2002 | EP1243563A2 Treatment of water containing organic wastes with aromatic amine nitrate salts |
| 09/25/2002 | EP1243562A2 Treatment of water containing organic wastes with aromatic amine nitrate salts |
| 09/25/2002 | EP1242318A2 Method for biological treatment of animal breeding effluent and device therefor |
| 09/25/2002 | EP1242317A1 Method and device for treating water by oxygenation |
| 09/25/2002 | EP1154956B1 Method for microbially cleaning up sulphuric-acid residual mining pools |
| 09/25/2002 | EP1144316B1 Utilization of oil-in-water emulsions in aerobic biological sewage treatment plants |
| 09/25/2002 | EP1012253A4 Reaction sites for microorganisms used to biodegrade contaminants and methods of use |
| 09/25/2002 | CN2512776Y Processor for toilet faeces and urine |
| 09/25/2002 | CN2512775Y Disc type rubber film micro hole aerator |
| 09/25/2002 | CN2512774Y Spray type internal circulation biological reactor |
| 09/25/2002 | CN2512773Y Wastewater treatment equipment |
| 09/25/2002 | CN1370828A Intermediate thermophilic acidophilic thiobacillu strin and its application |
| 09/25/2002 | CN1370747A Automatic hydraulic inflating stirrer and the method of utilizing it in purifying water |
| 09/21/2002 | CA2376731A1 Treatment of water containing organic wastes with aromatic amine nitrate salts |
| 09/21/2002 | CA2376725A1 Treatment of water containing organic wastes with aromatic amine nitrate salts |
| 09/19/2002 | WO2002072486A1 Process and reverse fluidised loop reactor for wastewater purification |
| 09/19/2002 | WO2002072485A2 Methods and apparatus for biological treatment of waste waters |
| 09/19/2002 | WO2002072001A2 Method and device for gassing liquids |
| 09/19/2002 | WO2002062707A8 Device for treatment and cleansing of liquids |
| 09/19/2002 | WO2002048311A3 System for converting organic waste reservoirs into anaerobic digesters |
| 09/19/2002 | WO2001077284A3 Device for material exchange and the cultivation of cells |
| 09/19/2002 | US20020130080 Water filtration using immersed membranes |
| 09/19/2002 | US20020130076 Aerated pond wastewater treatment system and process for controlling algae and ammonia |
| 09/19/2002 | CA2476614A1 Methods and apparatus for biological treatment of waste waters |
| 09/18/2002 | EP1240108A1 Method and installation for treating effluents, comprising an additional treatment of the sludge by ozonisation |
| 09/18/2002 | CN2511677Y Aerating apapratus with horizontal shaft with driving end bearing seat |
| 09/18/2002 | CN2511674Y Suspending biochemical reactor |
| 09/18/2002 | CN1370227A Bacterial consortium EBC1000 and method using bacterial consortium EBC 1000 for remedying biologically recalcitrant toxic chemicals contained in industrial wastewater etc. |
| 09/18/2002 | CN1369441A System for treating organic sewage with earthworm |
| 09/18/2002 | CN1369440A Process for treating sewage with zeolite filler in aerated biologic filter pool and zeolite filler |
| 09/18/2002 | CN1091077C Denitrogenation filer and its denitrogenation material working method |
| 09/18/2002 | CN1090985C Process for purifying flue gas contg. nitrogen oxides |
| 09/17/2002 | US6451206 System for converting organic waste reservoirs onto anaerobic digesters |
| 09/17/2002 | US6451125 Decompositing wastes; multilayer sink structure; replaceable filter |
| 09/17/2002 | CA2237767C Process and apparatus for remedying polluted media |
| 09/17/2002 | CA2104865C Bacterial leaching process |
| 09/12/2002 | WO2002069701A1 Device and method for holding water for accommodating and growing aquatic organisms |
| 09/11/2002 | EP1238718A1 Method of degrading hardly degradable harmful material |
| 09/11/2002 | EP1237820A1 Process and system for treatment of waste streams containing water-soluble polymers |
| 09/11/2002 | EP1080043B1 Improvements to sealed reservoirs for methanation or storage in corrosive atmosphere |
| 09/11/2002 | EP1042236B1 A method of preparing a microbial culture for wastewater treatment |
| 09/11/2002 | EP1030820B1 Method for automatically adjusting the aeration of an installation for biological treatment of waste water |
| 09/11/2002 | EP1007482B1 Method for purifying waste water comprising an additional sludge treatment by ozonation |
| 09/11/2002 | CN2510488Y Silicon-carbide ceramic microporous aerating device |
| 09/11/2002 | CN2510487Y Upper flow photobiological reactor |
| 09/11/2002 | CN1368480A Biological method for cleaning water of river and lake |
| 09/11/2002 | CN1090592C Oxygen-gathering activating and aerating oxygenating machine |
| 09/11/2002 | CN1090526C Gas dissolving |
| 09/10/2002 | US6447683 Feeding to thermophilic anaerobic reactor, feeding to mesophilic reactor |
| 09/10/2002 | US6447682 Process and system for enhanced nitrogen removal in a wetland wastewater treatment facility |
| 09/10/2002 | US6447681 Aquaculture wastewater treatment system and method of making same |
| 09/10/2002 | US6447675 Fish pond filter system |
| 09/06/2002 | WO2002068345A1 Oxygen-enriched water purifying plant |
| 09/06/2002 | WO2002068344A1 Method for biological purification of effluents using biofilm supporting particles |
| 09/06/2002 | WO2002068340A1 Drain treating method, drain treating device and drain treating system |
| 09/06/2002 | WO2002068339A1 Method and system for treating nitrogen-containing compound |
| 09/06/2002 | WO2002030826A3 Processes and systems for treating wastewater |
| 09/06/2002 | CA2438525A1 Method for biological purification of effluents using biofilm supporting particles |
| 09/05/2002 | US20020121478 Activated sludge treatment |
| 09/05/2002 | US20020121477 Stable microbiological methane fermentation zone established within a primary waste pond called an Advanced Facultative Pond, that is a complete primary treatment of organic waste and wastewater that does not require daily sludge handling |
| 09/04/2002 | EP1236689A1 Method for the treatment of aqueous effluent |
| 09/04/2002 | EP1236688A1 Biological purification plant for residual waters equipped with anaerobic digestors and purification process |
| 09/04/2002 | EP1236687A2 Activated sludge treatment |
| 09/04/2002 | EP1236686A1 Wastewater treatment with control over biological solids |
| 09/04/2002 | EP1236043A1 An electrochemical method for enrichment of microorganism, a biosensor for analyzing organic substance and bod |
| 09/04/2002 | EP0964831B1 Method for acquiring grain-shaped growth of a microorganism in a reactor |
| 09/04/2002 | CN1367759A Hybrid chemical and biological process for decontaminating sludge from municipal sewage |
| 09/04/2002 | CN1367144A Microbial pool device for treating ammonia-containing waste water and its culture method |
| 09/04/2002 | CN1367143A Four-channel type oxidation channel urban sewage treatment system |
| 09/04/2002 | CN1367142A Power generation technique by utilizing sewage treatment |
| 09/04/2002 | CN1090050C Device for stirring and aerating liquid and eliminating foam in vat for treating this liquid |
| 09/04/2002 | CN1090049C Zero waste effluent water desalination system |
| 09/03/2002 | US6444204 Candida maltosa used for the bio-degradation of petroleum product pollutants |
| 09/03/2002 | US6444193 Process for preparation of gas containing vesicles |
| 09/03/2002 | US6444126 Purification of solids-free wastewater utilizing submerged fixed film biological technology and bioreactors |
| 09/03/2002 | US6444125 Intermittent aeration; dynamic fluid flow |
| 08/29/2002 | WO2002066383A1 Method for the treatment of aqueous effluent or solid waste residues |
| 08/29/2002 | WO2002066146A1 Treated material stirring apparatus |
| 08/29/2002 | WO2002046105A3 Bioreactor for bioremediation of waste water |
| 08/29/2002 | WO2002043649A3 Preparation of compositions comprising bacterial strains and volatile plant extracts and therapeutic and industrial applications thereof |
| 08/29/2002 | US20020117445 Growing microbes on-site at wastewater treatment facility for removing pollutants |
| 08/29/2002 | US20020117444 Process and apparatus for the treatment of waste water |
| 08/29/2002 | US20020117443 Sealed tight |
| 08/28/2002 | EP1234804A1 An anoxic and/or aerobic biological reactor for the purification of waste water and/or liquid residues with high concentrations of contaminating loads |
| 08/28/2002 | EP1234803A1 Immobilized microorganisms support, method for manufacturing the same and method for environment decontamination therewith |
| 08/28/2002 | EP1234802A1 Improved method and apparatus for water treatment |
| 08/28/2002 | EP1234049A1 Process for production of biopolymers from nitrogen deficient wastewater |
| 08/28/2002 | EP1144317B1 Device for the aerobic microbiological treatment of waste water |
| 08/28/2002 | EP0871596B1 Use of mannanases as slime control agents |
| 08/28/2002 | CN2507855Y High capacity circulation biodegradation chamber for treatment of refuse |
| 08/28/2002 | CN1366510A Sewage purifier |
| 08/28/2002 | CN1365953A Integrated process for removing S, N and phenol from waste water containing S,N and phenol |
| 08/28/2002 | CN1089729C Method and device for monitoring biological activity and controlling treatment of waste water |
| 08/27/2002 | US6440226 Parts washing system |