| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 02/09/1995 | DE4323610C1 Biopolder for the biological clean-up of soils and sludges |
| 02/08/1995 | EP0637343A1 Mixture of microorganisms, the use of the mixture in the biodegradation of hydrocarbons, and a method of applying the mixture |
| 02/08/1995 | EP0637210A1 Method for treatment of potato fruit water. |
| 02/08/1995 | CN2189152Y Aerobic filtration tank with inflated aeration |
| 02/07/1995 | US5387343 Method for improving bottom and water quality in water areas and a set of agents used in the method |
| 02/07/1995 | US5387335 Filter circulating type sewage disposal apparatus |
| 02/07/1995 | US5387271 Biological system for degrading nitroaromatics in water and soils |
| 02/02/1995 | WO1995003259A1 Biological system for degrading nitroaromatics in water and soils |
| 02/02/1995 | WO1995003254A1 Monitoring biological activity in wastewater |
| 02/02/1995 | WO1995003253A1 Method of aeration of liquids |
| 02/02/1995 | DE4420109A1 Liquid purification apparatus |
| 02/02/1995 | DE4402442C1 Process for improving wastewater clean up in trickling filter units |
| 02/02/1995 | DE4325535A1 Process for separating off phosphates from wastewaters |
| 02/02/1995 | DE4325161A1 Tank provided with an agitator for liquids containing solids |
| 02/02/1995 | DE4324067A1 Process for cleaning up raw water contaminated by strippable pollutants, in particular hydrocarbons, and plant for carrying out the process |
| 02/01/1995 | EP0636583A1 Process for purifying organically polluted wastewater |
| 02/01/1995 | CN2188585Y Ultra-high proportion surface area suspended organism filtering monosomic |
| 02/01/1995 | CN1098139A Process and device for culturing chlorella with waste liquid after extraction glycyrrhizic acid |
| 02/01/1995 | CN1098070A Method for treating paperworking waste water with photosynthetic bacteria |
| 02/01/1995 | CA2129170A1 Process for treating organically polluted water |
| 01/31/1995 | US5385741 Reducing calcium ion content of calcium alginate gel by contacting with aqueous solution of acid |
| 01/31/1995 | US5385664 Apparatus for producing ultrapure water |
| 01/31/1995 | CA1334222C Slime control for primary filtration systems |
| 01/28/1995 | CA2101342A1 Discharging system |
| 01/26/1995 | WO1995002558A1 Aerator/remediator combination |
| 01/26/1995 | DE4426855A1 Method for determining the design of a bioreactor |
| 01/26/1995 | DE4337469C1 Unit for treating wastewater and sludge in a reactor |
| 01/25/1995 | EP0403654B1 Multiple gas phase liquid treatment apparatus |
| 01/25/1995 | CN2188093Y Suspension biologic filler without producing of residual sludge |
| 01/24/1995 | US5384049 Flowing fluid through settling basin with continuous hydraulic displacement and equilibration, aeration and settling sludge |
| 01/24/1995 | US5384048 Bioremediation of contaminated groundwater |
| 01/24/1995 | US5384033 Floating inlet tube |
| 01/19/1995 | WO1994026086A3 Improvements relating to plastics articles |
| 01/19/1995 | DE4341805C1 Process and apparatus for the biological purification of water |
| 01/18/1995 | EP0634370A1 Process for treatment of nitrogenous effluents using sludges as substrate |
| 01/18/1995 | EP0634369A1 Process and installation for water purification with physiko-chemical denitrificating sludges |
| 01/18/1995 | EP0634368A1 Process and device for directly biologically treating hot industrial wastewater or a partial stream thereof |
| 01/18/1995 | EP0634367A1 Method and apparatus for improving liquid flow |
| 01/18/1995 | EP0634366A1 Method and apparatus for gas/liquid contact |
| 01/18/1995 | EP0634363A1 Photocatalyst and process for purifying water |
| 01/18/1995 | EP0633866A1 Method and apparatus for batchwise biological and chemical purification of soil water. |
| 01/18/1995 | EP0633810A1 Method and apparatus for effecting gas-liquid contact |
| 01/17/1995 | US5382363 Septic system and method |
| 01/17/1995 | US5382358 Apparatus for dissolved air floatation and similar gas-liquid contacting operations |
| 01/17/1995 | CA1334036C Process and plant for the biological purification of waste water |
| 01/13/1995 | CA2127857A1 Water treatment process using physical-chemical denitrifying sludges and facilities |
| 01/13/1995 | CA2117397A1 Photocatalyst and process for purifying water with same |
| 01/12/1995 | WO1995001311A1 PROCESS FOR THE BIOLOGICAL ELIMINATION OF NITRATES AND/OR NITRITES USING STRAINS OF $i(KLEBSIELLA OXYTOCA) |
| 01/12/1995 | WO1995001310A1 Method for increasing the capacity of sewage treatment plant |
| 01/12/1995 | WO1995001230A1 Method and device for sediment detoxification |
| 01/12/1995 | DE4420030A1 Throughflow-speed regulator for gas/liquid separation |
| 01/12/1995 | DE4408132A1 Hydrogenated granular support for an apparatus for biological treatment and process for the production thereof |
| 01/12/1995 | DE4345195A1 Process for eliminating chlorinated hydrocarbons which are difficult to absorb |
| 01/11/1995 | EP0632790A1 Apparatus for activation of a digesting agent. |
| 01/11/1995 | EP0632730A1 Use of immobilized film reactor |
| 01/11/1995 | EP0445165B1 Flow discharge valve |
| 01/10/1995 | US5380471 Aeration apparatus for producing ultrapure water |
| 01/10/1995 | US5380439 Water treatment with holders and perforated conduits |
| 01/10/1995 | US5380438 Treatment of wastewater through enhanced biological phosphorus removal |
| 01/05/1995 | WO1995000448A1 Filler block |
| 01/05/1995 | WO1995000447A1 Process and apparatus for biological treatment of water |
| 01/05/1995 | WO1995000264A1 Method of treating contaminated soil and a device for carrying out the method |
| 01/05/1995 | WO1995000208A2 A chemical-biological process for dehalogenation of halogenated organic compounds |
| 01/05/1995 | DE4321372A1 Static carrier material - biofilm system |
| 01/05/1995 | DE4321349A1 Process for the elimination of poorly absorbable chlorinated hydrocarbons |
| 01/05/1995 | CA2164932A1 Process and apparatus for biological treatment of water |
| 01/05/1995 | CA2162845A1 A chemical-biological process for dehalogenation of halogenated organic compounds |
| 01/04/1995 | EP0632154A1 Ball-like structures and contacting materials for wastewater treatment |
| 01/04/1995 | EP0631998A1 Functional ceramics |
| 01/04/1995 | EP0631989A1 Process and installation for biological treatment of waste water |
| 01/04/1995 | CN1096995A Single stage gas reflux type biological wastewater treatment system with pure oxygen |
| 01/03/1995 | US5378355 Direct delivery in-situ diffuser cleaning |
| 01/03/1995 | CA2126630A1 Method for increasing the capacity of sewage treatment plant |
| 01/03/1995 | CA2099514A1 Process and apparatus for treating waste water in a dynamic, bio sequenced manner |
| 12/30/1994 | CA2126814A1 Low density glassy materials for bioremediation supports |
| 12/30/1994 | CA2126530A1 Ball-like structures and contacting materials for wastewater-treatment |
| 12/28/1994 | EP0630966A1 Improved apparatus for the anaerobic fermentation of organic materials |
| 12/28/1994 | EP0630862A1 Process for biological treatment of water |
| 12/28/1994 | EP0630861A1 Substrate material for a biofilm and biofilm reactor |
| 12/28/1994 | EP0630860A1 Method and apparatus for controlled biological treatment of waste water |
| 12/28/1994 | EP0630859A1 Substrate material for a biofilm and biofilm reactor |
| 12/28/1994 | EP0630671A2 Sewage treatment system |
| 12/28/1994 | EP0630664A1 Microbiological method for disposing of organic waste materials |
| 12/28/1994 | EP0611364A4 Method and apparatus for removing manganese from water. |
| 12/28/1994 | CN2186239Y Multifunction efficient aerobic pool |
| 12/28/1994 | CN2186238Y Sparkle apparatus of biocolloid |
| 12/28/1994 | CN1096769A New technology for treating electroplating waste water with micro-organism |
| 12/27/1994 | US5376275 Wastewater treatment |
| 12/25/1994 | CA2126647A1 Method and apparatus for controlled biological treatment of waste water |
| 12/25/1994 | CA2126618A1 Substrate material for a biofilm and biofilm reactor |
| 12/24/1994 | CA2126522A1 Biological treatment of waters |
| 12/22/1994 | WO1994029227A1 Process for purifying sulphide-containing waste water |
| 12/22/1994 | WO1994029226A1 Method for removing soluble metals from an aqueous phase |
| 12/22/1994 | WO1994029225A1 Oxidation ditch wastewater treatment and denitrification system |
| 12/22/1994 | WO1994029224A1 Water treatment method and water treatment apparatus |
| 12/22/1994 | WO1994029019A1 Method and apparatus for separating solids from a liquid |
| 12/22/1994 | DE4321089A1 Process for heavy metal decontamination with the aid of algae |
| 12/22/1994 | CA2163666A1 Method for removing soluble metals from an aqueous phase |
| 12/21/1994 | EP0629584A2 Biogas reactor for anaerobic waste water treatment |
| 12/21/1994 | EP0629142A1 Apparatus and method for treatment of waste water sludge |