| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 09/10/1986 | EP0193979A2 Process for the elimination of nitrates by a microbiological conversion in the presence of gaseous hydrogen |
| 09/10/1986 | EP0193969A2 Fixed-bed-column reactor for anaerobic digestion processes |
| 09/03/1986 | EP0193007A2 Process and apparatus for the biological purification of waste water |
| 09/03/1986 | EP0192900A1 Process and installation for realizing the degradation in an anaerobic medium of organic products, by-products and wastes of human, animal and/or vegetal origin |
| 09/03/1986 | EP0192879A1 Methane fermentation process for treating evaporator condensate from pulp making system |
| 09/03/1986 | CN86101771A Plant for the anaerobic purification of waste water |
| 09/02/1986 | US4609469 Waste water treatment |
| 09/02/1986 | US4609460 Anaerobic purification equipment for waste water |
| 08/28/1986 | WO1986004923A1 Polyurethane foam and a microbiological metabolizing system |
| 08/27/1986 | EP0192631A2 Filter chamber of gravity filter |
| 08/27/1986 | EP0192237A1 Process for the degradation of enviromentally persistent organic compounds |
| 08/26/1986 | US4608162 Water treatment |
| 08/26/1986 | US4608157 Wastewater treatment plant |
| 08/20/1986 | EP0191679A1 Process for the oxidation of dissolved or suspended substances in an aqueous solution |
| 08/20/1986 | EP0191483A2 Method and apparatus for biological aerobic wastewater treatment |
| 08/20/1986 | CN86100366A Biological purification and purifying equipment of waste water |
| 08/13/1986 | EP0190801A1 A process for carrying out microbiological fermentations in a device comprising a fixed system of an open cell foam as well as a device for carrying out such processes |
| 08/12/1986 | US4605502 Methods for purifying water or water-containing material using microorganisms and living bacterial preparations as well as method for preparing and storing same |
| 08/06/1986 | EP0189398A1 Method and plant for continuously producing biological humus-forming fertilizer |
| 08/05/1986 | US4604206 Staged anaerobic reactor |
| 08/05/1986 | US4604197 Submerged filter filled with granular material |
| 08/05/1986 | CA1209069A1 Microorganisms of the genus pseudomonas and process for degrading compounds which contain methyl groups in aqueous solutions |
| 07/31/1986 | WO1986004322A1 A process for the biological treatment of sewage |
| 07/30/1986 | EP0189155A1 Method for reduction of sewage sludge from sewage clarification plants |
| 07/29/1986 | CA1208623A1 Process and apparatus for mixing a gas and a liquid |
| 07/29/1986 | CA1208579A1 Microorganisms of the genus hyphomicrobium and process for degrading compounds which contain methyl groups in aqueous solutions |
| 07/23/1986 | CN85108749A 改进的废水处理系统 Improved wastewater treatment system |
| 07/17/1986 | WO1986004101A1 Material and method of manufacturing same, and method of protecting normal surfaces and method of constructing normal frames using same material |
| 07/16/1986 | EP0187732A2 Microorganisms of the genus Hyphomicrobium and process for the decomposition, in an aqueous medium, of compounds which contain methyl groups, especially phosphorous compounds which contain methyl groups |
| 07/16/1986 | CN85108394A Devices of sewage treatment |
| 07/15/1986 | US4600694 Apparatus for harvesting cells |
| 07/15/1986 | US4600510 Liquid treatment apparatus |
| 07/09/1986 | EP0186925A1 Method for the biological purification of contaminated gases |
| 07/09/1986 | CN85100252A 净水器 Water Purifier |
| 07/08/1986 | US4599179 Method and apparatus for treating septic system with radiation activated fluid |
| 07/08/1986 | US4599174 Submerged fixed film biological treatment system |
| 07/08/1986 | US4599168 Apparatus for treatment of waste water having selective recycle control |
| 07/08/1986 | US4599167 Apparatus for treatment of waste water |
| 07/03/1986 | WO1986003734A1 Nitrification/denitrification of waste material |
| 07/02/1986 | EP0186125A2 A carrier for microorganisms |
| 07/02/1986 | CN85106124A Treatment of waste water from milk factory |
| 07/02/1986 | CA1206955A Submersible hydraulic powered directable slurry agitator |
| 07/02/1986 | CA1206865A Energy efficient phase transfer/dispersion systems and methods for using the same |
| 07/01/1986 | US4597877 Process and equipment for water treatment |
| 07/01/1986 | US4597872 Method for anaerobic wastewater treatment |
| 07/01/1986 | US4597530 Fluid diffuser |
| 06/25/1986 | EP0185542A2 Improvements in sewage treatment biological rotors |
| 06/24/1986 | US4596658 For treating waste water with microorganisms to reduce solids content and biological oxygen demand; tank contains submerged upwardly directed decanting orfice |
| 06/19/1986 | WO1986003481A1 Dynamic anaerobic filter |
| 06/17/1986 | US4595505 Method for suppressing algal growth in solar ponds |
| 06/10/1986 | CA1205929A1 Apparatus for aerating water bodies or wastewater |
| 06/10/1986 | CA1205765A1 Treatment of obnoxious chemical wastes |
| 06/10/1986 | CA1205720A1 Compositions and method for treating oil slicks |
| 06/04/1986 | EP0183218A2 Agent for the treatment of liquid manure to prevent the formation of floating and settling layers, and its use |
| 06/04/1986 | EP0182955A1 Reaction vessel |
| 06/03/1986 | CA1205459A1 Flow separation threshold impeller blade design for mixers |
| 05/28/1986 | EP0182380A2 Process and apparatus for the biological treatment of water, especially for the denitrification of drinking water |
| 05/28/1986 | EP0182093A2 Process for the purification of supernatant liquors from night-soil, especially from domestic sewage treatment plants |
| 05/27/1986 | US4591443 Oxidizing contaminats with hydrogen peroxide and a hydratable polymeric compound |
| 05/27/1986 | US4590781 Method for forming an electric resistance welded steel pipe |
| 05/27/1986 | CA1205221A1 Method and a device for the anaerobic fermentation of organic waste material such as liquid manure |
| 05/21/1986 | EP0181769A1 Stimulation of aerobic bacteria |
| 05/21/1986 | EP0181497A1 Metal recovery |
| 05/20/1986 | US4589927 Liquid multisolid fluidized bed processing |
| 05/20/1986 | CA1204886A1 Method and flow sheet for adapting waste water, being rich in calcium, for an anaerobic fermentation |
| 05/14/1986 | EP0181211A2 Method for decontaminating a permeable subterranean formation |
| 05/14/1986 | EP0181210A2 Stimulation of biooxidation processes in subterranean formations |
| 05/13/1986 | US4588506 Stimulation of biooxidation processes in subterranean formations |
| 05/13/1986 | CA1204398A1 Microbial degradation of obnoxious organic wastes into innocuous materials |
| 05/10/1986 | CN85104232A Anaerobic fermentation equipment using stirring apparatus by bioenergy |
| 05/09/1986 | WO1986002630A1 Method and device for the purification of water and special waste |
| 05/09/1986 | WO1986002577A1 Device for introducing a gas into a liquid |
| 05/07/1986 | EP0180197A2 Wastewater treatment process |
| 05/07/1986 | EP0180039A1 Fluid diffuser |
| 05/06/1986 | US4587064 Marine bays |
| 05/06/1986 | US4587019 Aerobic digestion of sludge |
| 04/30/1986 | EP0179234A2 Process and apparatus for the treatment of sewage sludge |
| 04/29/1986 | US4585556 Arrangement for removal of sludge separated by flotation in the biological activating cleaning of waste waters using a fluid filtration |
| 04/29/1986 | US4585555 Barrier oxidation ditch having increased flow efficiency and oxygen transfer efficiency |
| 04/23/1986 | EP0179045A2 Plant for waste disposal |
| 04/22/1986 | US4584102 Process for the biological degradation of hazardous waste by-products |
| 04/15/1986 | US4582612 Efficient oxygenation by increasing surface area of sludge and using pressureized oxygen |
| 04/15/1986 | US4582607 Process for the biological treatment of waste water |
| 04/15/1986 | US4582600 Growth of biomass |
| 04/15/1986 | US4582599 Aeration tank |
| 04/15/1986 | CA1203329A1 Floating platform structure |
| 04/15/1986 | CA1203328A1 Method for the elimination or prevention of blockages in bottom aerators in water treatment and sewage treatment under operating conditions |
| 04/09/1986 | EP0176912A2 Method of purifying waste water |
| 04/08/1986 | US4581181 Mooring structure for free vertical movement, preventing rocking or horizontal motion |
| 04/08/1986 | US4581143 Intermittent or pulsed air flow; entrapped bubbles with increased contact time |
| 04/08/1986 | US4581137 Gas diffuser tube assembly |
| 04/08/1986 | US4581044 Adsorption with carbon molecular seive |
| 04/08/1986 | US4580904 Device for obtaining high-quality mixtures of solids and liquids extending to the colloidal system or to coagulation intended for treating water or for introducing gases into liquids |
| 04/02/1986 | EP0175681A1 Filter device for aquarium |
| 04/02/1986 | CN85202346U Combination anaerobic reactor |
| 04/01/1986 | US4579654 Apparatus for the anaerobic fermentation of organic waste material such as liquid manure |
| 04/01/1986 | CA1202576A1 Process for separating carbonic acid gas from methane- rich gas |
| 03/26/1986 | EP0175568A2 Three phase fluidized bed bioreactor process |
| 03/19/1986 | EP0174429A2 Apparatus for the aeration of waste water or similar matter in aeration tanks |
| 03/18/1986 | US4576719 Aeration |