| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 01/02/2002 | EP1167304A1 Releasable attaching device of aeration apparatus in water aeration installation |
| 01/02/2002 | EP1167303A1 Method for reducing sludge resulting from the cleaning of waste water in a biological oxidation step of a purification plant |
| 01/02/2002 | EP1167302A1 Process for biological and/or physical elimination of undesired substances from water |
| 01/02/2002 | EP1165449A1 Mixing, aeration or oxygenating method and apparatus |
| 01/02/2002 | EP1165448A1 Biochemically enhanced thermophilic treatment process |
| 01/02/2002 | EP1165447A1 Process for the removal of suspended and other material from waste water |
| 01/02/2002 | EP1165446A1 Method and arrangement for introduction of sewage pre-treatment upstream of sewage treatment facility |
| 01/02/2002 | EP1164839A1 Purification device for purifying fresh water |
| 01/02/2002 | CN2469001Y Nutrition adding apparatus for culturing special fungi |
| 01/02/2002 | CN2469000Y Bio-chemical and piling-up type filtering equipment |
| 01/02/2002 | CN1328974A Device and method for treating feces, kitchen sewage and domestic sewage |
| 01/02/2002 | CN1328973A Circulating fecal treatment device and method |
| 01/02/2002 | CN1328972A Composite method for treating industrial and domestic waste water as resource and its equipment |
| 01/01/2002 | US6334958 Process for minute dosing of gravity media filters |
| 01/01/2002 | US6334954 Using fermentative microorganism to consume oxygen in fluid medium, allowing cleavage of nitroaromatic compound by anaerobic micoorganism |
| 01/01/2002 | CA2102121C Bio-slurry reaction system and process for hazardous waste treatment |
| 12/27/2001 | WO2001098435A2 Avalon biopreparation for removing petrol and petrol products from environmental sites and method for producing said biopreparation |
| 12/27/2001 | WO2001097958A1 Fine air bubble generator and fine air bubble generating device with the generator |
| 12/27/2001 | US20010054587 Biodegradation of ethers using fatty acid enhanced microbes |
| 12/27/2001 | US20010054586 Composition and method for removing suspended solids from wastewater |
| 12/26/2001 | CN2467511Y Foam ceramic fillings |
| 12/26/2001 | CN2467510Y Multifunction waste water regulating pool |
| 12/26/2001 | CN1328529A Purification system for disposal of polluted or waste water using water plants |
| 12/26/2001 | CN1328528A Improvements to waste water treatment using activated sludge process |
| 12/25/2001 | US6332978 Apparatus for reducing nitrate concentration in wastewater |
| 12/25/2001 | US6332972 Decontamination method and system, such as an in-situ groundwater decontamination system, producing dissolved oxygen and reactive initiators |
| 12/25/2001 | CA2071357C Vapor-phase nutrient delivery system for in-situ bioremediation of soil |
| 12/23/2001 | CA2351255A1 Apparatus for the detachable securement of aeration devices in water aerating units |
| 12/20/2001 | WO2001096246A1 Effluent purifying device |
| 12/20/2001 | US20010052499 Process for treating waste water containing a resin |
| 12/20/2001 | US20010052494 Chemical cleaning backwash for normally immersed membranes |
| 12/20/2001 | DE10026867A1 Reaktor und Verfahren für die Abwasserreinigung Reactor and method for wastewater treatment |
| 12/20/2001 | DE10024547A1 Process for biological cleaning of sewage or sludge and waste has heat provided by primary solar collector with heat storage to maintain substrate heat on fluctuations from primary supply |
| 12/20/2001 | CA2412487A1 Effluent purifying device |
| 12/19/2001 | EP1163400A1 Water treatment system and method using permeable embankments, weirs, walls or the like |
| 12/19/2001 | EP1163191A2 Method for conditioning water contaminated with halogenated hydrocarbons |
| 12/19/2001 | CN2466145Y Micropower household sewage treating device |
| 12/19/2001 | CN2466144Y 曝气管 Aeration tube |
| 12/19/2001 | CN2466143Y Integrated intermediate water recycle device |
| 12/19/2001 | CN1076325C Method for integral treatment of domestic and chemical industrial sewage |
| 12/19/2001 | CN1076324C Method for treating waste water of alkaline residual from oil refinery |
| 12/19/2001 | CN1076323C Sewage treating method |
| 12/18/2001 | US6331300 Compositions for providing a chemical to a microorganism |
| 12/18/2001 | US6331251 System and method for withdrawing permeate through a filter and for cleaning the filter in situ |
| 12/18/2001 | US6331249 Apparatus and method for wastewater nutrient recovery |
| 12/13/2001 | WO2001094266A1 Method of and apparatus for protecting and improving quality of water in reservoirs |
| 12/12/2001 | EP1162178A2 Process for removing cyclic acetals from wastewater streams |
| 12/12/2001 | EP1071637B1 Method for treating process waste waters highly charged with ammonium in waste water systems |
| 12/12/2001 | EP1009721B1 Method for biological purification of waste water by the activated sludge method |
| 12/12/2001 | EP0986519B1 Biological product for maintaining water mains and purifying waste water |
| 12/12/2001 | EP0836584B2 Microbiological degradation of alkylene amine acetates |
| 12/12/2001 | CN2464723Y Diaphragm type arch-shaped porous aerator |
| 12/12/2001 | CN1326512A Process for the production of hydrogen sulphide from elemental sulphur and use thereof in heavy metal recovery |
| 12/12/2001 | CN1326375A Slow sand filter for use with intermittently flowing water supply and use thereof |
| 12/12/2001 | CN1076008C Membrane type biological reactor |
| 12/12/2001 | CN1076007C Sewage treating unit y |
| 12/11/2001 | US6329196 An apparatus that enhances mass transfer of fluid in a porous matrix system, using a reaction vessel for containing a fluid medium, applying a series of controlled compressive forces to a region of the porous matrix, extruding fluid |
| 12/11/2001 | US6328899 Method and apparatus for treating wastewater containing organic sulfur compounds |
| 12/11/2001 | US6328893 Treating contaminated industrial waste water with activated sludge, pre-cleaning the treated product by subjecting same to a precipitation, subjecting the pre-cleaned product to reverse osmosis, and recirculating to operational factory stage |
| 12/11/2001 | US6328892 Liquid effluent treatment process and plant |
| 12/11/2001 | US6328891 Purification of water containing ammonium perchlorate by treating in a first, aerobic reactor, with an activated sludge and containing nitrifying microorganisms; treating effluent with denitrifying microorganisms in anoxic reactor |
| 12/11/2001 | US6328890 Septic waste treatment system |
| 12/11/2001 | US6328045 Parts washing system |
| 12/06/2001 | WO2001092471A1 Heavy-metal binding bacteria and their use in detoxification of heavy metal-contaminated media |
| 12/06/2001 | WO2001092166A1 Method for biological cleaning of wastewater |
| 12/06/2001 | WO2001053207A3 Water purification process and purification plant |
| 12/06/2001 | WO2001047816A3 Method and device for purifying untreated water |
| 12/06/2001 | WO2001027033A3 Method and devicve for biological treatment of waste water |
| 12/06/2001 | US20010047962 Apparatus and method for cleaning membrane filtration modules |
| 12/06/2001 | US20010047960 Process for nitrifying denitrifying organic waste water |
| 12/06/2001 | US20010047957 Waste treatment system |
| 12/06/2001 | US20010047538 Thermo-evaporation type toilet system |
| 12/06/2001 | CA2349728A1 Process for removing cyclic acetals from wastewater streams |
| 12/05/2001 | EP1160317A1 Bioreactor carrier, process for producing the carrier and method for using the same |
| 12/05/2001 | EP1160207A1 Reactor and process for wastewater treatment |
| 12/05/2001 | EP1160206A1 Bioreactor carrier, process for producing the carrier and method for using the same |
| 12/05/2001 | EP1091911B1 Method for regulating aeration during waste water biological treatment |
| 12/05/2001 | EP0971858B1 Method for treating waste water, especially from and malt houses and breweries |
| 12/05/2001 | EP0968045B1 Method for recuperating vent gas coming from an ozonization reactor |
| 12/05/2001 | EP0950027B1 Biological disk |
| 12/05/2001 | CN2463385Y High-efficiency sewage purifying treatment installation |
| 12/05/2001 | CN1325440A Method and apparatus for controlled composting and bioremediating |
| 12/05/2001 | CN1325318A Device for withdrawing clarified water from clarification plants with discontinuous operation |
| 12/05/2001 | CN1324685A Submersible field oxygenating machine |
| 12/05/2001 | CN1075797C Sewage treatment method for subcurrent crushed stone plant bed |
| 12/05/2001 | CN1075796C Aeration turn plate and its mfg. method |
| 12/04/2001 | US6326191 Fluidized radial flow bioreactor utilizing pellet media |
| 12/04/2001 | US6325936 Adding organic coagulant of amine/quaternary ammonium salt to coagulate resin, mixing polyacrylamide to cause flocculation, adding inorganic coagulant, separating by flotation, digesting with activated sludge, settling, filtering |
| 12/04/2001 | US6325934 Enzyme and bacterial combination in a slowly dissolvable matrix for septic tanks, grease traps and waste treatment |
| 12/04/2001 | US6325933 Process for biological purification of waste water under sludge retention |
| 12/04/2001 | US6325923 Bioreactor for acid mine drainage control |
| 12/04/2001 | CA2259061C Coated single particles and their use in fluid bed chromatography |
| 11/29/2001 | WO2001090312A1 Ammonia-oxidizing bacteria |
| 11/29/2001 | WO2001090007A1 Improvements in or relating to biolytic filtration |
| 11/29/2001 | WO2001090006A1 Wastewater treatment system and method |
| 11/29/2001 | WO2001089729A2 Compositions and methods for microbial dechlorination of polychlorinated biphenyl compounds |
| 11/29/2001 | US20010045392 Wastewater treatment system and method |
| 11/29/2001 | US20010045391 Method of treating waste water for removing nitrogen and phosphorus and apparatus therefor |
| 11/29/2001 | US20010045390 Wastewater treatment process |
| 11/29/2001 | US20010045383 Method and apparatus for treating stormwater runoff |