| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 04/16/2002 | US6372147 Hydrolysis of phenylated boron compounds to boric acid and benzene prior to biotreatment |
| 04/16/2002 | US6372140 Biodegradation of wastewater employing coarse and fine bubble jet diffusers; improved oxygen transfer and mixing |
| 04/16/2002 | US6372139 Anaerobic treatment, aeration and flotation, sand filtration or urea-formaldehyde membrane solids separation; effluents reutilization |
| 04/16/2002 | US6372138 Wastewater treatment method for removing organic matter and nitrogen, carrier used thereof and method for manufacturing the carrier |
| 04/16/2002 | US6372137 Wastewater treatment system for maximizing effluent quality |
| 04/16/2002 | US6372128 Biofiltering device for treating wastewater |
| 04/11/2002 | WO2002029007A2 Bacteria used for oxidising arsenic, method for selecting same and uses thereof for treating media containing arsenic |
| 04/11/2002 | WO2002028786A2 Process and apparatus for treating wastewater |
| 04/11/2002 | WO2002028784A1 Waste water treating device |
| 04/11/2002 | WO2002028780A2 Apparatus and method for wastewater treatment with enhanced solids reduction (esr) |
| 04/11/2002 | WO2002028518A1 Gas dissolving apparatus and method |
| 04/11/2002 | WO2002028510A2 Lagoon covers providing multi-stage waste treatment |
| 04/11/2002 | WO2001090312A9 Ammonia-oxidizing bacteria |
| 04/11/2002 | WO2001070989A3 Genetically modified plants and plant cells comprising heterologous heavy metal transport and complexation proteins |
| 04/11/2002 | US20020040877 Process for removing cyclic acetals from wastewater streams |
| 04/11/2002 | US20020040871 Apparatus and method for wastewater treatment with enhanced solids reduction (ESR) |
| 04/11/2002 | DE10048050A1 Assembly for treating aquaculture water effluent, comprises a reactor sub-divided into micro-aerophilic, anaerobic and aerobic zones packed with porous granules |
| 04/11/2002 | CA2599557A1 In situ immobilization within density variant bodies of water |
| 04/11/2002 | CA2425147A1 Apparatus and method for wastewater treatment with enhanced solids reduction (esr) |
| 04/11/2002 | CA2424515A1 Lagoon covers providing multi-stage waste treatment |
| 04/10/2002 | EP1194382A1 Method, device and use of said method for biological elimination of metal elements present in an ionized state in water |
| 04/10/2002 | EP1194223A1 Fluidizing reactor and method for treatment of fluids |
| 04/10/2002 | EP1084082B1 Method for cleaning waste water from the production of agar-agar |
| 04/10/2002 | CN2485303Y Improved tubular membrane aerator |
| 04/10/2002 | CN2485302Y Gimp filler of elastic fiber |
| 04/10/2002 | CN1344230A Process for removal of suspended and other material from waste water |
| 04/10/2002 | CN1344089A Sewage management system |
| 04/09/2002 | US6368849 A treatment system for liquid manure by subjecting the liquid to anaerobic fermentaion in a biogas reactor; separate by filtration, the sterile particle-free permeate stream from the reactor; then heat treat with an ammonia stripper |
| 04/09/2002 | US6368615 Polymer of unsaturated ester of salicylic acid |
| 04/09/2002 | US6368508 Method and apparatus for single reactor wastewater treatment system |
| 04/09/2002 | US6367784 Apparatus for aerating water |
| 04/09/2002 | CA2229754C Method for culturing microorganism, method for biosynthesizing organic compound, method for maintaining microbial ability to decompose polluting substance, method for decomposing pollutant, and method for remedying environment |
| 04/04/2002 | WO2002026641A1 Method for effluent purification |
| 04/04/2002 | WO2002026638A1 Improved system and processes for water purification that include bio-filtration |
| 04/04/2002 | WO2002010072A3 Process for direct filtration of wastewater |
| 04/04/2002 | US20020038997 Apparatus for producing an organic EL display device, and process for producing an organic EL display device, using the same |
| 04/04/2002 | US20020038785 Redox systems |
| 04/04/2002 | US20020038784 Method and apparatus for treatment of wastewater |
| 04/04/2002 | DE10051727C1 Suitability-testing of planted and unplanted ground systems for waste water purification, recirculates water between inner and outer concentric circuits |
| 04/04/2002 | DE10044697A1 Process, useful for treating ground water, comprises injecting pressure controlled oxygen into well water and releasing the supply of gas via a porous matrix in a pressure regulated reactor |
| 04/04/2002 | DE10044652A1 Verfahren und Vorrichtung zum dauerhaft nachwirkenden Dekontaminieren von Wasserversorgungsleitungssystemen Method and apparatus for permanently after-effects decontaminating water supply line systems |
| 04/04/2002 | CA2423302A1 Method for effluent purification |
| 04/03/2002 | EP1193221A2 Disc contact aerator |
| 04/03/2002 | EP1192109A1 Method of treating and utilizing sludge |
| 04/03/2002 | EP1192107A1 Method for managing urban wastewater based on indications on pollutants |
| 04/03/2002 | EP0800482B1 Method and apparatus for the treatment of concentrated wastewater |
| 04/03/2002 | CN2484313Y Combined facultative anaerobic generator |
| 04/03/2002 | CN2484312Y Tubelide anaerobic baffling reaction apparatus |
| 04/03/2002 | CN2484309Y Microaperture bubbling-areating-jetting ozone gas-water mixing device |
| 04/03/2002 | CN1343183A Mixing, aeration or oxygenating method and apparatus |
| 04/03/2002 | CN1343134A Method for desulphurization of gases |
| 04/03/2002 | CN1082034C Method for treating of sewage and waste water by using of fibriform biological film |
| 04/02/2002 | US6365048 Method for treatment of organic matter contaminated drinking water |
| 04/02/2002 | US6364996 Device for treatment and removal of aqueous liquids by controlled atmospheric action |
| 03/28/2002 | WO2002024584A1 Method and apparatus for anaerobically degrading pollutants with alkanes |
| 03/28/2002 | WO2002024583A1 Microbiological culture for triggering microbiological processes in water |
| 03/28/2002 | WO2001040118B1 Treatment of aqueous media containing electrically charged compounds |
| 03/28/2002 | US20020036175 Pulsed-electric field is generated by an electroporating device producing a non-arcing pulsed electric field. |
| 03/28/2002 | DE19942802C2 Misch-Belüftungssäule Mixing ventilation column |
| 03/28/2002 | DE10043595A1 Floating pond water filter housing has chamber with nutrients for micro-organisms residing on a substrate surface |
| 03/28/2002 | DE10042468A1 Combined waste water and sludge treatment basin has rigid floating gas trap |
| 03/27/2002 | EP1190991A1 Water treatment device with self-regulating capacity |
| 03/27/2002 | EP1189843A1 Bioremediation of petroleum pollutants with alkane-utilizing bacteria |
| 03/27/2002 | EP1189683A1 System and method for withdrawing permeate through a filter and for cleaning the filter in situ |
| 03/27/2002 | CN2483384Y Anaerobic-aerobic activated sludge type waste water treatment equipment |
| 03/27/2002 | CN2483383Y Lamination linear development type carrier for suspended organism |
| 03/27/2002 | CN2483382Y Lamination arc shaped development type carrier for suspended organism |
| 03/27/2002 | CN1341708A Special strain culture addition method and its equipment |
| 03/27/2002 | CN1341569A Improved oxidation channel city sewage treamtent process |
| 03/27/2002 | CN1341567A Application of natural stone material green sandstone |
| 03/27/2002 | CN1081612C Technology and apparatus for treatment of sewage by double baffle type biological process |
| 03/26/2002 | US6361701 Filtering waste water with radial flow from annular region through granular filter with particle sizes decreasing from inside to outside; nonclogging and efficient |
| 03/26/2002 | US6361698 Industrial lagoon treatment |
| 03/26/2002 | US6361695 Shipboard wastewater treatment system |
| 03/26/2002 | US6361694 Enhanced biomass digestion through intermittent injection of propane |
| 03/26/2002 | US6361249 Negative air pressure cover |
| 03/21/2002 | WO2002022773A2 Bioreactor |
| 03/21/2002 | WO2002022510A1 Polluted water treatment system |
| 03/21/2002 | WO2001087777A3 Filter devices and methods of use |
| 03/21/2002 | US20020033544 Apparatus for securing water aerating devices to air supply conduits |
| 03/21/2002 | US20020033543 Reactor |
| 03/21/2002 | US20020033366 Method for water denitrification |
| 03/21/2002 | US20020033363 Containerized polluted-water treatment apparatus |
| 03/21/2002 | DE10044698A1 Process, useful for treating ground water, comprises injecting pressure controlled oxygen into well water and releasing the supply of gas via a porous matrix in a pressure regulated reactor |
| 03/21/2002 | DE10044696A1 Process, useful for treating ground water, comprises injecting pressure controlled oxygen into well water and releasing the supply of gas via a porous matrix in a pressure regulated reactor |
| 03/20/2002 | EP1188721A1 Process and device for water treatment |
| 03/20/2002 | EP0823887B1 Method and device for a combined treatment of domestic sewage and domestic biodegradable garbage |
| 03/20/2002 | CN2482551Y Filling biological rotary frame sewage treating device |
| 03/20/2002 | CN1341079A Magnetic sludge suitable for use in waste water treatment and method for preparing same and method for waste water treatment |
| 03/20/2002 | CN1340464A Bacillus rigens method for biologically repairing culture environment of aquatic products |
| 03/20/2002 | CN1340463A Bacillus circulans method for biologically repairing culture environment of aquatic products |
| 03/20/2002 | CN1340462A Bacillus subtilis method for biologically repairing culture environment of aquatic products |
| 03/19/2002 | US6358411 Wastewater treatment plant |
| 03/14/2002 | WO2002020416A2 Polyhydroxyalkanoate levels as an indicator of bioreactor health |
| 03/14/2002 | WO2002020415A1 Activated sludge wastewater treatment system and method |
| 03/14/2002 | US20020030012 Comprising means of providing conditioned re-cycle flush water through pretreatment and solids separation for waste fluming; contaminated wastewater source connected in fluid flow communication with means of conditioning |
| 03/14/2002 | US20020030003 Activated sludge wastewater treatment system and method |
| 03/14/2002 | DE10128930A1 Swimming and bathing pool has vegetation at the edges as a biological regeneration zone and waves are generated in the water flow to move floating particles to the edges |
| 03/14/2002 | CA2421432A1 Activated sludge wastewater treatment system and method |
| 03/14/2002 | CA2420588A1 Polyhydroxyalkanoate levels as an indicator of bioreactor health |