C02F 3 - Biological treatment of water, waste water, or sewage

Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453)
12/1994
12/21/1994	EP0550510B1 Venting nozzle for liquids containing organic substances
12/21/1994	CN2185749Y Elastic waveform stereoscopic filler
12/21/1994	CN1096498A Method and apparatus for treating waste water from chlorhydrin biology and containing organic chloride compound
12/20/1994	US5374353 Aeration train and aeration apparatus for biological purification of wastewater
12/18/1994	CA2126144A1 Biogas reactor for the anaerobic treatment of waste water
12/15/1994	DE4425124A1 1-Chamber fixed-bed unit
12/15/1994	DE4425123A1 Small sewage treatment plant package unit
12/15/1994	DE4425121A1 2-Chamber fixed-bed unit
12/15/1994	DE4319067A1 Process for the purification and reactivation of waters
12/15/1994	DE4318987A1 Oxygen spring
12/14/1994	EP0628517A1 Biological clarification device
12/14/1994	EP0628073A1 Ionic binding of microbial biomass
12/14/1994	EP0628018A1 Method of separating oil from wash water
12/13/1994	US5372720 Reducing nitrogen, phosphorus and excessive biological oxygen demand by passing through a granular filter bed activated with bacteria
12/13/1994	US5372712 Biomass growth control apparatus for fluid bed biological reactor
12/13/1994	CA2009943C Process for the treatment of waste water from food processing plants
12/08/1994	WO1994027921A1 Wastewater treatment system
12/08/1994	WO1994027920A1 Contact device and container for a rotating biological contactor
12/08/1994	WO1994027919A1 Bioreactor for biological treatment of contaminated water
12/08/1994	WO1994027918A1 Waste water treatment method, suspensed matter separation method, and method for saturating a liquid with a gas
12/08/1994	WO1994027915A1 Electrochemical treatment process and device for calcium- and/or magnesium-containing water or waste water
12/08/1994	WO1994027912A1 Method for purifying chlorophenol-containing waters
12/08/1994	DE4318535A1 Process for treating, stabilising, rendering inert, detoxifying, landfilling and disposal of mineral wastes, scrap materials and residues and for recovering metals and producing soil substrates
12/07/1994	EP0627387A1 Method and apparatus for processing organic waste water
12/07/1994	EP0627251A1 Solid material flow-separating method
12/07/1994	EP0626877A1 Decanting apparatus
12/07/1994	CN2184694Y Spring net stereo filler
12/06/1994	US5370801 Method for treating polluted material
12/01/1994	DE4317670A1 Device for treating liquids with gases
12/01/1994	CA2124548A1 System for processing organic waste water
11/1994
11/30/1994	EP0625961A1 Effluent treatment process
11/30/1994	EP0625960A1 Sewage treatment apparatus
11/30/1994	EP0606432A4 A reactor.
11/30/1994	CN1095695A Biochemical treatment for antibiotics waste water
11/30/1994	CN1095692A Nitro-diazophenol wasted water treatment process
11/29/1994	US5369031 Biodegradation of ketones
11/29/1994	CA1333301C Activated sludge wastewater treatment process
11/24/1994	WO1994026672A1 Hose aerator
11/24/1994	WO1994026400A1 Method of mixing and treating liquid with air and means for performing the method
11/24/1994	WO1994026392A1 Method for biological cleaning of a contaminated gas flow
11/24/1994	WO1994026086A2 Improvements relating to plastics articles
11/24/1994	DE4400120A1 Drum-screen filter system
11/24/1994	DE4336787C1 Module for biological waste water purification
11/24/1994	DE4316943A1 Process for reducing the growth/deposition layers in a fixed bed reactor and device for carrying out the process
11/23/1994	EP0625484A1 Aeration device for with water filled tanks, especially clarification tanks
11/23/1994	EP0625128A1 Process for the denitrification of sewage.
11/23/1994	EP0625127A1 Reactor for the biological treatment of waste water.
11/23/1994	EP0625126A1 Bioremediation of contaminated groundwater
11/23/1994	EP0535197B1 System for separating biological sludge from purified water
11/23/1994	CN2183365Y Boosting biological contact oxidation tower
11/23/1994	CN1026661C Filter device
11/22/1994	US5366999 Filler-modified polyurethane foam supports for bioconversion processes
11/22/1994	US5366891 Thiobacillus
11/22/1994	US5366698 Apparatus for effecting gas liquid contact
11/22/1994	US5366633 Process for the treatment of water containing sulphur compounds
11/19/1994	CA2123638A1 Apparatus for the treatment of waste sludge
11/17/1994	EP0624554A1 Fixed bed reactor
11/17/1994	EP0624408A1 Method of separating heavy metals
11/17/1994	EP0624202A1 Method to produce single cell oil containing gamma-linolenic acid
11/17/1994	EP0624149A1 Process and apparatus for removal of organic pollutants from waste water
11/17/1994	EP0624077A1 Magnetically modification of organism metabolism
11/17/1994	DE4331434C1 Filter device for the final purification of waste water
11/17/1994	DE4315733A1 Gas-introduction hose
11/17/1994	DE4315700A1 Aeration device
11/16/1994	CN2182806Y Biological filter with micro particles for water purification
11/15/1994	US5364789 Hydrocarbon ingesting bacteria
11/15/1994	US5364786 Pure culture of Agrobacterium sp. which degrades ferric chelates
11/15/1994	US5364530 Process for the biological purification of sewage
11/15/1994	US5364529 Wastewater treatment system
11/15/1994	US5364509 Wastewater treatment
11/10/1994	WO1994025686A1 Improvements in bioremediation of hydrocarbon contaminated soils and water
11/10/1994	WO1994025405A1 Method of treating waste water containing organic and inorganic compounds, particularly waste water arising from the manufacture of epichlorohydrin
11/10/1994	WO1994025404A1 Microbial degradation of chemical pollutants
11/10/1994	WO1994025403A1 A device for aiding the solubilization of gases in liquids
11/10/1994	WO1994025190A1 Remediation of contaminated material
11/10/1994	DE4244784A1 Process for cleaning polluted materials
11/10/1994	CA2160006A1 Process for decreasing the concentration of dioxane or tetrahydrofuran pollutants using aureobasidium pullulans
11/09/1994	EP0623099A1 Biological method for purifying waste water contaminated with organic carbon and nitrogen compounds
11/09/1994	EP0623098A1 Apparatus for the oxidation of water.
11/08/1994	US5362397 Method for the biodegradation of organic contaminants in a mass of particulate solids
11/08/1994	US5362395 Recirculating retention phase concentrated with substances in sewage through membrane filter until concentrate with desired amount of materials hard to decompose biologically is obtained and treating concentrate physically or chemically first
11/08/1994	US5362386 Support mechanism of overflow weir in sewage disposal tank
11/08/1994	CA1332985C Biodegradation of alkylene glycols utilizing selected bacteria
11/03/1994	DE4339905C1 Effluent treatment system
11/03/1994	DE4313902A1 Biological small sewage treatment unit
11/02/1994	EP0561889B1 Process for the removal of sulphur compounds from gases
11/01/1994	US5360556 Method of feeding wastewater effluent to filter bed through parallel conduits
11/01/1994	US5360546 Method for treating organic sludge
11/01/1994	US5360538 Mixed liquor wasting system
11/01/1994	US5360522 Biocatalyst-immobilized electrode and method for treatment of water by use of the electrode
11/01/1994	US5360517 Adding Staphylococcus carnosus
11/01/1994	CA1332833C Process for contacting gases with liquids
10/1994
10/27/1994	WO1994024265A1 Microorganism of genus bacillus cereus and use thereof
10/27/1994	WO1994024058A1 Equipment for circulating of water
10/27/1994	WO1994024057A1 Method and composition for enhanced bioremediation of petroleum
10/27/1994	WO1994024056A1 Treatment of wastewater and sludges
10/27/1994	WO1994024055A1 Method and apparatus for treating waste water
10/27/1994	WO1994023857A1 Method and composition for remediating environmental contaminants
10/27/1994	DE4313499A1 Aeration apparatus for waters, in particular for waste waters to be clarified
10/27/1994	DE4312971A1 Process and apparatus for aerating waters

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