| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
|---|
| 05/28/1985 | US4519913 Process for the removal and recovery of selenium from aqueous solutions |
| 05/28/1985 | US4519912 Process for the removal of sulfate and metals from aqueous solutions |
| 05/28/1985 | CA1187854A1 Pipe support |
| 05/23/1985 | WO1985002197A1 Method, compound and composition for effecting degradation of crude petroleum and petroleum products in an environment |
| 05/23/1985 | WO1985002196A1 Method, compound and composition for effecting degradation of crude petroleum and petroleum products in an environment |
| 05/22/1985 | EP0142307A1 Hydraulic digester |
| 05/22/1985 | EP0142123A2 Process and apparatus for the biological denitrification of water |
| 05/15/1985 | EP0141784A1 Process for the decomposition of s-triazine derivatives in aqueous solutions |
| 05/14/1985 | US4517093 Process for the biological purification of waste water |
| 05/09/1985 | WO1985001887A1 Aerator |
| 05/08/1985 | EP0139976A1 Apparatus for the anaerobic decomposition of organic substances |
| 05/07/1985 | CA1186680A1 Draft tube apparatus |
| 04/30/1985 | US4514297 Anaerobic digestion of organic sludge-methane production |
| 04/30/1985 | CA1186422A1 Immersion aerator |
| 04/30/1985 | CA1186212A1 Packing element for use in gas-to-liquid absorption towers |
| 04/25/1985 | WO1985001743A1 Aerobic microbiological method |
| 04/25/1985 | WO1985001723A1 Process for protecting lakes against eutrophization caused by subsoil water |
| 04/24/1985 | EP0138118A2 Avoidance of rising sludge in biological wastewater treatment clarifiers |
| 04/24/1985 | EP0137895A2 Clarification of fluids |
| 04/23/1985 | US4512936 Sewage treatment |
| 04/23/1985 | US4512914 Monoalkyl guanidinium salts |
| 04/23/1985 | US4512895 Pumpless clarifier apparatus and process for operation thereof in combination with a draft tube circulator/aerator |
| 04/23/1985 | CA1186074A1 Rotating biological contactor for the biological purification of waste water |
| 04/16/1985 | US4511657 Treatment of obnoxious chemical wastes |
| 04/16/1985 | CA1185709A1 Method and apparatus for treating hydrocarbon and halogenated hydrocarbon contaminated ground and ground water |
| 04/10/1985 | EP0136394A2 Method and apparatus for solution of gas in liquid |
| 04/09/1985 | US4510057 Rotating disk biotreatment of syngas waste water |
| 04/03/1985 | EP0135822A2 Diffusor and methods of using the same |
| 04/03/1985 | EP0135796A2 Process and apparatus for the biological purification of liquids and/or liquids-solids mixtures |
| 03/28/1985 | WO1985001282A1 Anaerobic fermenter |
| 03/28/1985 | WO1985001281A1 Anaerobic fermentation process |
| 03/27/1985 | EP0135486A1 Method of controlling an anaerobic treatment process |
| 03/27/1985 | EP0134890A2 Device for the preparation of high quality solid-liquid mixtures up to the colloid system or up to coagulation for the treatment of water or to introduce gases into liquids |
| 03/26/1985 | US4507253 Equipment for gassing a liquid and process for operating the equipment |
| 03/26/1985 | US4507206 Method for restoring and maintaining eutrophied natural bodies of waters |
| 03/20/1985 | EP0134766A1 Method of treating peroxide-containing wastewater |
| 03/20/1985 | EP0134271A1 Process and plant for the biological depuration of effluents |
| 03/19/1985 | US4505821 Method of treating waste liquors containing phenolics and formaldehyde |
| 03/19/1985 | US4505820 Method for cleaning waste water |
| 03/19/1985 | US4505819 Fluidized bed |
| 03/19/1985 | US4505813 Wastewater treatment plant |
| 03/13/1985 | EP0134131A1 A method of enhancing gas to liquid transfer |
| 03/13/1985 | EP0020678B1 Method for sewage treatment with bacteria |
| 03/12/1985 | US4504393 Method and apparatus for controlling a rotating biological contactor |
| 03/12/1985 | US4504388 Reactor for injection of gas into a liquid |
| 03/12/1985 | CA1183972A1 Self-propelled rotating aerator |
| 03/12/1985 | CA1183790A1 Method of treating biomass material |
| 03/12/1985 | CA1183727A1 Self-supporting insulation element |
| 03/06/1985 | EP0133846A1 Method at anaerobic wastewater treatment |
| 03/05/1985 | US4503154 Methane and fertilizer |
| 03/05/1985 | US4503150 Polyurethane foam and a microbiological metabolizing system |
| 03/05/1985 | US4502958 Method and device for the separation of suspended solids in waste water |
| 03/05/1985 | CA1183616A1 Apparatus for treatment of waste water |
| 02/27/1985 | EP0133614A2 Method for the biological transformation of substrates |
| 02/27/1985 | EP0133545A1 Process and apparatus for the biological treatment of waste water |
| 02/26/1985 | US4501665 Self-contained sewage treatment system and method |
| 02/26/1985 | US4501664 Method and apparatus for treating organic wastewater |
| 02/20/1985 | EP0133405A1 Method for the denitrification of ground water in order to make it drinkable |
| 02/20/1985 | EP0133222A1 Process for the biological purification of exhaust gases |
| 02/20/1985 | EP0031332B1 Waste disposal apparatus |
| 02/19/1985 | US4500429 Anaerobic and aerobic treatment of sludges on carrier material |
| 02/19/1985 | US4500427 Activated-sludge process for wastewater treatment |
| 02/14/1985 | WO1985000584A1 Plant for prepurifying solid waste in solution, containing organic material, and simultaneous production of methane |
| 02/13/1985 | EP0132649A2 Process for the anaerobic biological purification of waste water |
| 02/13/1985 | EP0132609A2 Biological wastewater treating system |
| 02/12/1985 | US4498985 Growth of biomass |
| 02/12/1985 | CA1182445A1 Downflow mixer |
| 02/05/1985 | CA1182227A1 Effluent waste water treatment |
| 01/31/1985 | WO1985000355A1 Method and apparatus for on site treatment of waste water with radiation activated fluid |
| 01/29/1985 | CA1181698A1 Waste treatment process and apparatus |
| 01/22/1985 | US4494616 Apparatus and methods for the aeration of cesspools |
| 01/22/1985 | CA1181538A1 Process and apparatus for promoting growth of biomass |
| 01/22/1985 | CA1181537A1 Biological detoxification of effluent water from a tar sand process |
| 01/16/1985 | EP0131319A1 Process and installation for anaerobic digestion |
| 01/16/1985 | EP0131236A1 Mechanical and biological installation, and process for waste water purification |
| 01/15/1985 | US4493895 Using pseudomonas |
| 01/15/1985 | US4493770 Method and system of generating heat by biological decomposition of organic refuse |
| 01/15/1985 | US4493735 Device and method for forming a fluidized bed |
| 01/09/1985 | EP0130499A1 Device for biological waste water treatment |
| 01/09/1985 | EP0130210A1 Apparatus for the production of methane |
| 01/08/1985 | US4492756 Microorganisms of the genus Hyphomicrobium and process for degrading compounds wich contain methyl groups in aqueous solutions |
| 01/02/1985 | EP0129590A1 Anaerobic fermentation |
| 01/01/1985 | US4491549 Device for dispersing a second phase in a first phase |
| 01/01/1985 | US4491522 Anaerobic digestion process for organic wastes |
| 12/27/1984 | EP0129315A1 Two component biocidal system |
| 12/27/1984 | EP0128923A1 Method and means of purifying sewage |
| 12/27/1984 | CA1180138A Wastewater treatment process |
| 12/25/1984 | US4490471 Microorganisms of the genus Pseudomonas and process for degrading compounds which contain methyl groups in aqueous solutions |
| 12/25/1984 | US4490258 Sludgeless oxidative biological purification process |
| 12/25/1984 | US4490257 Process for purification of waste waters accumulated from pulp production, particularly from chlorine bleaching of pulp |
| 12/25/1984 | US4490248 Method and flotation machine for concentrating ores of non-ferrous metals |
| 12/18/1984 | US4488968 Removal of phosphates and BOD from wastewaters |
| 12/18/1984 | US4488967 Treatment of wastewater containing phosphorus compounds |
| 12/18/1984 | US4488963 Sewage system for waste water |
| 12/18/1984 | US4488960 Biological reactor apparatus for biological decomposition of organic refuse |
| 12/18/1984 | US4488508 Aeration/circulation method and apparatus utilizing low pressure air |
| 12/18/1984 | CA1179791A1 Gas diffuser |
| 12/18/1984 | CA1179790A1 Integral flow circulator for fluid bed reactor |
| 12/12/1984 | EP0127999A1 Liquid phase oxidation |
| 12/12/1984 | EP0127793A2 Biological flocculation of mineral slimes |