| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 05/14/2002 | US6387669 Methods for producing hydrogen (BI) sulfide and/or removing metals |
| 05/14/2002 | US6387280 Process for reducing the amount of nitrification-inhibiting sulfur compounds |
| 05/14/2002 | US6387267 Separation slurry into solids and liquids; supplying oxygen; aerobic microbial degradation |
| 05/14/2002 | US6387266 Method of sewage biological purification and an equipment for performing this method |
| 05/14/2002 | US6387265 Controlling oxidation, reduction cycles |
| 05/14/2002 | US6387264 Unified fermentation and thickening process |
| 05/14/2002 | US6387262 Hollow-fiber membrane biofilm reactor for autohydrogenotrophic treatment of water |
| 05/14/2002 | US6387254 Removing solids; denitrification; nitrification; settling |
| 05/14/2002 | US6386796 Composite particles and methods for their application and implementation |
| 05/10/2002 | WO2002036502A1 Waste treatment process |
| 05/10/2002 | WO2002036499A2 Treatment of waste water and apparatus therefor |
| 05/10/2002 | WO2002036252A1 Two-fluid mixing device |
| 05/09/2002 | US20020053537 Apparatus and method for biological treatment of environmental contaminants and waste |
| 05/09/2002 | US20020053259 Compositions and methods for removing pollutants from contaminated materials |
| 05/08/2002 | EP1203621A1 Green garbage treatment apparatus |
| 05/08/2002 | EP1202938A1 Microbiological removal of bromine salts from fluid streams |
| 05/08/2002 | EP0931023B1 Method of treating ammonia-comprising waste water |
| 05/08/2002 | CN1347851A Treatment method of high concentration organic wastewater using biological culture equipment |
| 05/07/2002 | US6383797 Bioremediation; pollution control |
| 05/07/2002 | US6383390 Method of treating ammonia-comprising waste water |
| 05/07/2002 | US6383389 Measurement fluid flow; calibation |
| 05/07/2002 | US6383388 Water purification; demetallization |
| 05/07/2002 | US6383387 Solid liquid separation after aerobic biological treatment by precipitation into liquid and sludge; concentrating sludge and solubilizing by thermophilic bacteria; circulation |
| 05/07/2002 | US6383379 Water pollution control; aeration and settling tanks |
| 05/07/2002 | US6383378 Solid liquid separation after aerobic biological treatment by precipitation into liquid and sludge; concentrating sludge and solubilizing by thermophilic bacteria; circulation |
| 05/07/2002 | US6383373 Biological filtration apparatus |
| 05/07/2002 | US6383372 Sequential flow filtration chamber for treatment of waste water and associated method |
| 05/07/2002 | US6383371 Apparatus for applying alternating anaerobic contact processing for the treatment of wastewater |
| 05/07/2002 | US6383369 Waste and wastewater treatment and recycling system |
| 05/07/2002 | CA2361116A1 Biological fluidised bed apparatus |
| 05/02/2002 | WO2002034897A1 Artichoke extract (cynara scolymus, l.) and its use in decontamination of media which are contaminated with phenols, aromatic amines, organic halides and/or heavy metals |
| 05/02/2002 | WO2002034680A1 Reclaiming water and usable brine concentrate from domestic sewage |
| 05/02/2002 | WO2002034679A1 Multi-stage biological waste water purification method with interrupted operation, and device for carrying out this method |
| 05/02/2002 | WO2002034678A1 Waste treatment composition and method |
| 05/02/2002 | WO2002034373A1 Fibre membrane arrangement |
| 05/02/2002 | WO2002004364A3 Process for biodegrading crude oil |
| 05/02/2002 | WO2001042142A3 Method and device for treating waste water |
| 05/02/2002 | WO2000076655A9 Fluidizing reactor and method for treatment of fluids |
| 05/02/2002 | US20020052016 Monitoring and controlling biocatalytic efficiency of wastewater treatment; obtain activated sludge, sample wastewater, measure concentration of interior storage particles, adjust feed nutrients |
| 05/02/2002 | EP1200362A1 Method and device for the purification of wastewaters |
| 05/02/2002 | EP1200361A1 Method for purifying domestic, agricultural and industrial wastewater |
| 05/02/2002 | EP1200360A1 Waste water nitrification |
| 05/02/2002 | DE10051994A1 Aeration mat for feeding oxygen into mixture of active sludge and water comprises steel frame, each side of which carries aerating pipe |
| 05/02/2002 | DE10050030A1 Process for introducing gases into liquid media e.g. in the microbial degradation of pollutants in effluent comprises using a rotor surrounding a concentric rotating traveller |
| 05/02/2002 | DE10047709A1 Verfahren zur Aufbereitung von Wasser unter Einsatz von Mikroorganismen A method for treatment of water using microorganisms |
| 05/02/2002 | CA2425598A1 Fibre membrane arrangement |
| 05/02/2002 | CA2422514A1 Waste treatment composition and method |
| 05/01/2002 | CN2488910Y Channel biological reactor for purifying organic wastewater |
| 05/01/2002 | CN1347391A Bioremediation of petroleum pollutants with alkane-utilizing bacteria |
| 05/01/2002 | CN1346808A Method and device for treatment of organic waste water |
| 05/01/2002 | CN1346716A Process for comprehensively treating silver-containing solid waste |
| 05/01/2002 | CN1084058C High efficiency energy conversion and treatment of organic waste |
| 05/01/2002 | CN1083804C Apparatus and method for waste water treatment using microorganisms |
| 04/30/2002 | US6379914 Method and apparatus for measuring use of a substrate in a microbially catalyzed reaction |
| 04/30/2002 | US6379562 Treatment of water containing organic wastes with aromatic amine nitrate salts |
| 04/30/2002 | US6379548 System for recovering and treating waste water |
| 04/30/2002 | US6379546 Water pollution control; separate accumulation; membrane filtration |
| 04/30/2002 | US6379545 Water pollution control |
| 04/30/2002 | US6379543 Water treatment system |
| 04/25/2002 | WO2002033055A1 Production process and composition of an enzymatic preparation, and its use for the treatment of domestic and industrial effluents of high fat, protein and/or carbohydrate content |
| 04/25/2002 | WO2002032815A2 Treatment of sludge from wastewater treatment facilities |
| 04/25/2002 | US20020048807 Hydrocarbon spillage absorbing and bioremediating device and method |
| 04/25/2002 | DE19960071C1 Reaktorkammer zur Denitrifikation von Abwasser Reactor chamber for denitrification of wastewater |
| 04/25/2002 | DE10051871A1 Waste water biological treatment reactor has ceramic membranes permeated by parallel nutrient feed passages |
| 04/24/2002 | EP1199909A1 Method and apparatus for manufacturing organic el display |
| 04/24/2002 | EP1199284A1 Wastewater treatment apparatus and method for recycling material for wastewater treatment |
| 04/24/2002 | EP1199283A1 Process and plant for storage and treatment of polluted effluents |
| 04/24/2002 | EP1198422A1 Method for treating sewage of a biological sewage treatment plant |
| 04/24/2002 | EP1001840B1 Gas-liquid venturi mixer |
| 04/24/2002 | CN2487732Y Combined biological fluidized bed reactor |
| 04/24/2002 | CN1346335A Method for treating waste stream using photosynthetic microorganisms |
| 04/23/2002 | US6375848 Water filtration using immersed membranes |
| 04/23/2002 | US6375845 Method for evaluating and controlling the biomass contained in waste water treatment biological tanks |
| 04/23/2002 | US6375844 Periodic flushing with water; anaerobic digestion; concentration; routing sludge; incubating clarified liquid under aerobic conditions; pollution control |
| 04/23/2002 | US6375838 Sealed tanks for methane fermentation or storage in a corrosive environment |
| 04/23/2002 | US6375837 Waste water treatment method being able to treat surface active agent, nitrogen, hydrogen peroxide and phosphor with high efficiency and equipment therefor |
| 04/23/2002 | US6375833 Filter assembly with UV treatment, filter bypass, and clogging indicator |
| 04/23/2002 | US6374835 Parts washing system |
| 04/18/2002 | WO2002030835A1 A process for nitrifying water in closed system hatcheries of penaeid and non penaeid prawn |
| 04/18/2002 | WO2002030834A2 Method for biological treatment of animal breeding effluent and device therefor |
| 04/18/2002 | WO2002030833A1 Method and apparatus for biological wastewater treatment |
| 04/18/2002 | WO2002030831A1 Vertical membrane storage system and method of storing liquids using the same |
| 04/18/2002 | WO2002030826A2 Processes and systems for treating wastewater |
| 04/18/2002 | WO2001089729A3 Compositions and methods for microbial dechlorination of polychlorinated biphenyl compounds |
| 04/18/2002 | US20020043729 Gasification device |
| 04/18/2002 | US20020043497 Wastewater is oxygenated so biological oxygen demand (BOD) is not reduced, allowing aerobic decomposition of organic matter, reducing the infiltrative capacity of the absorption field; septic tanks |
| 04/18/2002 | US20020043486 Processes and systems for treating wastewater |
| 04/18/2002 | DE10049163A1 Fish farming water effluent treated by coarse filtration and passage through reed bed channels for re-use |
| 04/18/2002 | DE10048892A1 Scheibentauchkörper Biodisk |
| 04/18/2002 | DE10048309A1 Small scale water treatment assembly has movable suction inlet discharging from one chamber to a second chamber |
| 04/17/2002 | EP1197548A1 Method of high-concentration culture of nitrifying bacteria or denitrifying bacteria contained in activated sludge, culture promoter to be used in high-concentration culture method of nitrifying bacteria, and mehtod of weight loss treatment of activated sludge |
| 04/17/2002 | EP1197269A2 Microbiological parts washer |
| 04/17/2002 | EP1196354A1 Biological nutrient removal using "the olaopa process" |
| 04/17/2002 | EP0892764B1 Processing of sewage sludge into humus |
| 04/17/2002 | CN2486547Y Suspending type biological contact waste water processing oxidation tower |
| 04/17/2002 | CN2486546Y Biochemical pot |
| 04/17/2002 | CN1344691A Integral equipment for shock wave mass transfer and biochemical anerobic process |
| 04/17/2002 | CN1344689A Efficient biochemical treamtent method and equipment for domestic sewage |
| 04/17/2002 | CN1082937C Biodegradation process for treating organic wastewater |
| 04/16/2002 | US6372472 Nontoxic, biodegradation |