| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 02/22/1996 | WO1996005003A1 Method of decontaminating contaminated material and devices therefor |
| 02/22/1996 | WO1996004784A1 A system and a method for aquatic production |
| 02/22/1996 | DE4429529A1 Treatment of waste water from vehicles, boats and planes |
| 02/21/1996 | CN2220468Y Multi-stage assembly three-phase separator |
| 02/20/1996 | US5492624 Feeding waste to autothermal aerobic digestion reactor to produce biomass and clear decant, contacting portion of biomass with oxidizing agent to produce oxidized effluent, returning to reactor |
| 02/15/1996 | WO1996004370A1 Slime hydrolase producing bacterium and process for producing slime hydrolase |
| 02/15/1996 | WO1996003867A1 Fluidized bed biological filtration tank assembly |
| 02/14/1996 | EP0696261A1 Method of treating waste water containing organic and inorganic compounds, particularly waste water arising from the manufacture of epichlorohydrin |
| 02/14/1996 | EP0532675B1 Controlled-release microbe nutrients and method for bioremediation |
| 02/14/1996 | CN2219890Y Waste water treatment using movable biomembrane light filler |
| 02/14/1996 | CN1116671A Treatment and recovery of black liquor |
| 02/13/1996 | US5490935 Method for treating wastewater |
| 02/13/1996 | US5490934 Retaining oxygen-depleted suspension of wastewater and biomass in tank while bacteria remove oxygen from nitrates and release free nitrogen |
| 02/13/1996 | US5490933 Self-regulated biological scrubber and/or gas stripper for the treatment of fluid streams |
| 02/08/1996 | WO1996003754A1 A method of decontaminating a cementitious or a metallic surface |
| 02/08/1996 | WO1996003352A1 Method and device for purifying waste water, in particular for fully biological domestic sewage treatment systems |
| 02/08/1996 | WO1996003351A1 A reactor for use in water treatment and micro film carriers for use in connection with said treatment as well as a method for operating the reactor |
| 02/07/1996 | EP0695722A1 Apparatus and method for waste water treatment utilizing aerobic and anaerobic microorganisms |
| 02/07/1996 | EP0695721A2 Contact material and method for its production |
| 02/07/1996 | EP0695720A1 Method for monitoring and controlling an installation for the biological treatment of waste water |
| 02/07/1996 | EP0695345A1 MICROORGANISM OF GENUS -i(BACILLUS CEREUS) AND USE THEREOF |
| 02/07/1996 | CN1116189A Synchronous intensified jet method of biological dephenolized mud mixed nutrient sewage |
| 02/06/1996 | US5489380 Apparatus for the biological purification of sewage |
| 02/01/1996 | WO1996002468A1 Method and plant for the purification of waste water by the activated sludge method |
| 02/01/1996 | DE4428052A1 Water treatment assembly soil-layers separated by porous fleece mat |
| 01/31/1996 | EP0694611A2 Cozynebacterium sp. J1, method for biodegradation of aromatic compounds and/or chlorinated organic compounds, and method for environmental remediation using it |
| 01/31/1996 | EP0694504A1 Apparatus for waste water purification |
| 01/30/1996 | US5487834 Methods for microbial filtration of fluids |
| 01/30/1996 | US5487829 Internal media cleaning device for aerobic fluidized bed reactors |
| 01/25/1996 | WO1996001704A1 Aerobic treatment process, device and plant for slurries |
| 01/25/1996 | WO1996001593A1 Method for delivering a gas-supersaturated fluid to a gas-depleted site and use thereof |
| 01/25/1996 | CA2194961A1 Method for delivering a gas-supersaturated fluid to a gas-depleted site and use thereof |
| 01/24/1996 | CN2218176Y Wastewater purifying apparatus used for discontinuous activated sludge process |
| 01/23/1996 | US5486474 Bioremediation method using a high nitrogen-containing culture of white rot fungi on sugar beet pulp |
| 01/23/1996 | US5486292 Adsorbent biocatalyst porous beads |
| 01/23/1996 | US5486291 Ecological fluidized bed method for the treatment of polluted water |
| 01/18/1996 | DE19517444C1 Device for aeration of waste water in activated sludge tank |
| 01/17/1996 | EP0692458A1 Treatment of mud and waste containing sulphates and heavy metals by sulphate-reducing bacteria and lactobacilli |
| 01/17/1996 | EP0625128B1 Process for the denitrification of sewage |
| 01/17/1996 | CN1115178A Method and system for treatment of water and wastewater |
| 01/16/1996 | US5484730 Eluting trinitrotoluene from contaminated soil |
| 01/16/1996 | US5484524 Wastewater treatment apparatus |
| 01/11/1996 | DE4424298A1 Activated sludge treatment of waste water in single tank |
| 01/11/1996 | DE4423300A1 Optimisation of nitrogen elimination from waste water |
| 01/11/1996 | DE4423051A1 Water effluent treatment plant reaction chambers subdivided into series of zones |
| 01/11/1996 | DE4422496A1 Sub-surface biological filter for surface waters drains through gravel layers |
| 01/11/1996 | DE4421211A1 Water aerator assembly secured to distribution system by self-locking plastic adaptor |
| 01/10/1996 | EP0691310A1 Wastewater treatment method and apparatus |
| 01/10/1996 | EP0691309A1 Process and device for the biological purification of a body of water |
| 01/10/1996 | EP0690827A1 Method and apparatus for pond water clarification and maintenance |
| 01/10/1996 | EP0690826A1 Fixed-bed bioreactor and carrier bodies for purifying fluids |
| 01/10/1996 | EP0690823A1 Metal removal from aqueous solution |
| 01/10/1996 | EP0690752A1 Process for bioremediation of contaminated soil or groundwater |
| 01/10/1996 | EP0474702B1 Wastewater treatment |
| 01/09/1996 | US5482630 Controlled denitrification process and system |
| 01/09/1996 | US5481815 Apparatus for treating sediment in a water body |
| 01/04/1996 | WO1996000191A1 Anaerobic removal of sulphur compounds from waste water |
| 01/04/1996 | CA2192575A1 Anaerobic removal of sulphur compounds from waste water |
| 01/03/1996 | EP0690025A2 Process for treating photographic waste solution |
| 01/03/1996 | EP0689523A1 Sewage treatment plant |
| 01/03/1996 | EP0689521A1 Compact clarifier system for municipal waste water treatment |
| 01/03/1996 | EP0586407B1 Apparatus for the gasification of liquids |
| 01/03/1996 | EP0579711B1 Method for removing sulphur compounds from water |
| 01/03/1996 | CN2216524Y Horizontal axis rotating brush aerator |
| 01/02/1996 | US5480593 Subterranean air lift diffuser assembly |
| 01/02/1996 | US5480579 Composition for dehalogenation and degradation of halogenated organic contaminants |
| 01/02/1996 | US5480561 Method and apparatus for treating wastewater |
| 01/02/1996 | US5480551 Process for the biological treatment of water |
| 01/02/1996 | US5480550 Biotreatment process for caustics containing inorganic sulfides |
| 01/02/1996 | US5480548 Step feed activated sludge wastewater purification process |
| 01/02/1996 | US5480537 Adding aluminum compound; fluorine converted to fluoride |
| 01/02/1996 | CA1337878C Process and device for purifying wastewater over a biological filter having particles lighter than water |
| 12/28/1995 | WO1995035263A1 Controlled denitrification process and system |
| 12/28/1995 | WO1995035156A1 Device for introducing gases into liquids in fine bubbles |
| 12/27/1995 | EP0688304A1 Process for biological water purification with integrated buffering |
| 12/27/1995 | EP0688303A1 Improved method for purifying waste water using activated sludge to increase purification yields |
| 12/27/1995 | EP0514543B1 Sewage purification apparatus |
| 12/27/1995 | CN1113890A Process for the removal of species containing metallicions from effluents |
| 12/26/1995 | US5478473 Passing water through floating filter layer provided inside processing chamber with aerobic bacteria to facilitate the growth of flocks of aerobic bacteria; periodically separating flocks and distributing them |
| 12/26/1995 | US5478472 Process for treating waste water containing organic and inorganic compounds |
| 12/26/1995 | US5478464 Apparatus for the biodegradation of organic contaminants in a mass of particulate solids |
| 12/21/1995 | WO1995034510A1 A method and a device for biological purification of waste water |
| 12/21/1995 | WO1995034509A1 Biological purification device and a method of purifying effluent using said device |
| 12/21/1995 | DE4445440C1 Biological purification of effluent waters |
| 12/20/1995 | EP0687653A1 Process and installation for the treatment of waste material from cesspools |
| 12/19/1995 | US5476787 Method of removing nitrogen impurities from water using hydrocarbon-producing microalga |
| 12/19/1995 | US5476583 Mixed liquor wasting system |
| 12/14/1995 | WO1995033696A1 Method of purifying waste water from dairies |
| 12/14/1995 | WO1995033695A1 Buoyant, swirlable substrate material for biotechnological processes |
| 12/14/1995 | WO1995033694A1 Rotating contactor including cross flow media for the biological treatment of waste water |
| 12/14/1995 | DE4420111A1 Biological treatment of waste water |
| 12/14/1995 | DE4420033A1 Verfahren zum Reinigen von Molkereiabwasser A method of purifying dairy wastewater |
| 12/14/1995 | DE19503272C1 Biological nitrification and denitrification of conc. inorganic nitrogen cpds. in liq. medium |
| 12/14/1995 | CA2191304A1 Rotating contactor including cross flow media for the biological treatment of waste water |
| 12/13/1995 | EP0686605A1 Process for purification of organically polluted waste waters |
| 12/13/1995 | CN2214943Y Tension support for fillings |
| 12/13/1995 | CN1113217A Biological treatment method for waste water |
| 12/12/1995 | US5474934 Decomposition of dioxanes by actinomyces cultures which use them as sole sources of carbon |
| 12/12/1995 | US5474682 Method for removing sulphur compounds from water |
| 12/12/1995 | CA2083677C System for the on-site removal of nitrates from wastewater |