| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 03/18/1986 | US4576718 Use of water-absorbing, highly-filled polyurethane (urea) compositions for biological treatment of waste-containing liquids |
| 03/18/1986 | US4576717 Infiltration, carbonaceous substrate, inogranix support |
| 03/18/1986 | US4576716 Method of producing water treatment medium and medium produced thereby |
| 03/18/1986 | CA1202128A1 Process and apparatus for biological wastewater treatment |
| 03/18/1986 | CA1202127A1 Process and apparatus for promoting growth of biomass |
| 03/18/1986 | CA1202126A1 Waste digestion unit |
| 03/18/1986 | CA1201970A1 Method for removing undesired components from the soil |
| 03/18/1986 | CA1201873A1 Process for contacting liquids with gases |
| 03/12/1986 | EP0119205B1 Installation for the treatment of waste water by means of biomass according to an aerobic process |
| 03/05/1986 | EP0173340A2 Improved method for culturing microorganisms |
| 03/05/1986 | EP0055292B1 Apparatus for treating liquids |
| 02/26/1986 | EP0172443A1 Process and device for anaerobically treating organic substrates in order to produce biogas |
| 02/26/1986 | EP0172292A1 Process and apparatus for the simultaneous production of compost and biogas from organic wastes |
| 02/25/1986 | CA1201035A1 Method and receptor tank for septic tank draining |
| 02/19/1986 | EP0172070A1 Digester and digestion process putting it into use |
| 02/19/1986 | EP0171452A1 Fine-bubble diffuser for aeration of water |
| 02/18/1986 | CA1200927A1 Arrangement for biological cleaning of water |
| 02/18/1986 | CA1200776A1 Method for the biological removal of free and complex cyanides and thiocyanates from water |
| 02/12/1986 | EP0170991A1 Process for the removal of ammoniacal nitrogen in the bod sorption zone of a wastewater treatment plant |
| 02/11/1986 | US4569757 Adapter skirt for static aerator mixer |
| 02/05/1986 | EP0170332A1 Anaerobic purification equipment for waste water |
| 02/05/1986 | EP0170210A2 Novel mat structure |
| 02/04/1986 | US4568464 Anaerobic filter |
| 02/04/1986 | US4568463 Method and apparatus for the purification of water and other aqueous liquids |
| 02/04/1986 | US4568462 Method of treating sewage in sewage treatment installations having an adsorption stage |
| 02/04/1986 | US4568458 Fluidized bed reactor |
| 02/04/1986 | US4568457 Staged anaerobic reactor |
| 02/04/1986 | US4568196 Device for preparing high-quality mixtures of a solid and a liquid |
| 01/29/1986 | EP0169832A2 Apparatus for the aeration of liquids, especially water |
| 01/29/1986 | EP0169620A1 Apparatus for purifying water, comprising an upflow reactor with an influent distributing system to be connected to a central water supply system |
| 01/28/1986 | US4566971 Process and apparatus for the biological purification of wastewater |
| 01/28/1986 | US4566469 Incubation, microorganisms, vacuum |
| 01/21/1986 | CA1199739A1 Device for treatment of wastewater by means of anaerobic fermentation |
| 01/16/1986 | WO1986000293A1 Method and plant for continuously producing biological humus-forming fertilizer |
| 01/15/1986 | EP0168283A1 Process and fluidised-bed reactor for biological treatment, especially for the treatment of water |
| 01/15/1986 | EP0167984A1 Process for the obtention of methane by fermentation of algae |
| 01/14/1986 | US4564480 Liquid treatment plants; gas-liquid mass transfer |
| 01/14/1986 | US4564444 Filamentous microorganism detector and an apparatus with the detector for controlling the process using microorganisms |
| 01/14/1986 | US4564373 Method for bubble-free gas feed |
| 01/08/1986 | EP0167006A2 Microbial degradation of obnoxious organic wastes into innocuous material |
| 01/07/1986 | US4563422 Method and composition for the removal of ascorbic acid from aqueous liquids |
| 01/07/1986 | US4563282 Rotating microscreens and biological contactors |
| 01/07/1986 | US4563281 Low pressure headspace in wastewater treatment |
| 01/07/1986 | US4563277 Aerators in pattern on floor of lagoon |
| 01/02/1986 | EP0166170A2 Apparatus for the introduction of gas into a liquid or suspension, especially an apparatus for sludge treatment |
| 12/31/1985 | US4561980 For immersing in pulp or slurry |
| 12/31/1985 | US4561974 Apparatus for the anaerobic filtration of waste water |
| 12/31/1985 | CA1198837A1 Sewage system for the treatment of segregated domestic waste water |
| 12/31/1985 | CA1198605A1 Anaerobic digestion of organic waste for biogas production |
| 12/27/1985 | EP0165862A1 Material with a large specific surface and its use in favourizing the contact between environments or reactants involving physical and/or chemical and/or biological phenomena |
| 12/27/1985 | EP0165730A1 Process and biological contact gas scrubber for waste gas purification |
| 12/27/1985 | EP0165552A2 Aeration plant |
| 12/27/1985 | EP0165445A1 Apparatus for gas dispersion in stretches of water |
| 12/27/1985 | EP0165328A1 Large-scale waste water treatment plant |
| 12/24/1985 | US4560660 Fixation support for microorganisms |
| 12/24/1985 | US4560479 Process for preparing biomass attached to a carrier |
| 12/19/1985 | WO1985005561A1 Liquid multisolid fluidized bed processing |
| 12/18/1985 | EP0165228A2 Apparatus for the aeration of flowing media |
| 12/18/1985 | EP0165067A2 Sewage treatment system |
| 12/18/1985 | EP0164545A2 Bacterial cultures, process for their preparation and their use |
| 12/18/1985 | EP0164508A1 Sewage treatment apparatus |
| 12/17/1985 | US4559305 Microbial culture system |
| 12/17/1985 | US4559142 Separation by metabolism rate |
| 12/11/1985 | EP0163821A1 Apparatus for the aeration of waste water basins and ponds |
| 12/11/1985 | EP0163749A1 Process and apparatus for the separation of biomass and inorganic components from the methane reactor sludge of an anaerobic waste water treatment plant |
| 12/10/1985 | US4557879 Gas diffuser with indefinite life and mixed bubble size capacity |
| 12/10/1985 | CA1197930A1 Activated sludge wastewater treating process |
| 12/04/1985 | EP0163159A1 Process for the biological purification of waste water |
| 12/04/1985 | EP0162840A1 Method, compound and composition for effecting degradation of crude petroleum and petroleum products in an environment |
| 12/03/1985 | US4556638 Microorganism capable of degrading phenolics |
| 12/03/1985 | US4556523 Microbubble injector |
| 12/03/1985 | US4556491 Avoidance of rising sludge in biological wastewater treatment clarifiers |
| 12/03/1985 | CA1197633A1 Process for treating industrial wastewaters by activated sludge |
| 12/03/1985 | CA1197632A1 Air diffuser for waste water treatment |
| 11/27/1985 | EP0162831A1 Apparatus for waste water treatment |
| 11/27/1985 | EP0162796A1 Process and installations for fluidising, expanding or agitating a bed |
| 11/27/1985 | EP0162688A2 Environment monitoring system |
| 11/27/1985 | EP0162545A2 Enhanced bioconversion processes |
| 11/27/1985 | EP0162339A1 Process and apparatus for the biological treatment of waste water |
| 11/27/1985 | EP0162121A1 Clarifier for the biological purification of waste water |
| 11/26/1985 | US4555342 Ribbon filter apparatus |
| 11/26/1985 | US4555335 Water treatment |
| 11/21/1985 | WO1985005098A1 A process for the purification of water |
| 11/21/1985 | EP0161469A1 Process and apparatus for the anaerobic decomposition of an organic substrate |
| 11/21/1985 | EP0161248A1 Method, compound and composition for effecting degradation of crude petroleum and petroleum products in an environment |
| 11/19/1985 | US4554114 Packing element and method using same |
| 11/19/1985 | US4554075 Process of degrading chloro-organics by white-rot fungi |
| 11/13/1985 | EP0161077A1 Sewage treatment |
| 11/13/1985 | EP0161041A2 Anaerobic reactor |
| 11/13/1985 | EP0160774A1 A process for the purification of water |
| 11/12/1985 | US4552663 Process for the removal of ammoniacal nitrogen in the BOD sorption zone of a wastewater treatment plant |
| 11/12/1985 | US4552657 Filter |
| 11/12/1985 | CA1196738A1 Process and apparatus for biological treatment of sludge |
| 11/06/1985 | EP0160193A1 Apparatus for gas dispersion in liquids |
| 11/05/1985 | US4551250 Degradation, methanization |
| 11/05/1985 | CA1196430A1 Method for the anaerobic fermentation of waste water |
| 10/30/1985 | EP0159972A1 Wastewater treatment method |
| 10/30/1985 | EP0159535A1 Septic tank |
| 10/30/1985 | EP0159340A1 Process for protecting lakes against eutrophization caused by subsoil water. |
| 10/29/1985 | US4549997 Device for increasing the oxygen concentration in a subsurface stratum of a thermally stratified body of water |