| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 01/16/2001 | CA2116439C Method of separating oleophilic-hydrophobic material from wash water |
| 01/16/2001 | CA2086752C Substance carrying conglomerate |
| 01/11/2001 | WO2001002310A1 Method and arrangement for purification of water |
| 01/11/2001 | WO2001002309A1 Method and device for the purification of wastewaters |
| 01/11/2001 | WO2001002308A1 Process and apparatus for treating biosolids from wastewater treatment |
| 01/11/2001 | WO2001002307A1 Device and method for purification of waste water |
| 01/11/2001 | WO2001002306A1 Method for managing urban wastewater based on indications on pollutants |
| 01/11/2001 | WO2001002086A1 Nutritional spray microemulsion useful as biodegradation accelerator |
| 01/11/2001 | DE19930544A1 Enzymatic degradation of organohalide contaminants in solid or aqueous systems using hydrogen peroxide and homogenized radish or radish juice to give prolonged activity |
| 01/11/2001 | CA2377825A1 Method and arrangement for purification of water |
| 01/11/2001 | CA2376478A1 Process for operating urban wastewater treatment facilities, on the basis of load estimates |
| 01/10/2001 | EP1066889A2 Apparatus for in situ de-acidifying of waters or soils containing sulphuric acid |
| 01/10/2001 | EP1066752A1 Air washer |
| 01/10/2001 | EP0948463B1 Apparatus for the biological purification of waste water |
| 01/10/2001 | EP0946432B1 Waste water purification process |
| 01/10/2001 | CN2414069Y 生物反应污水处理装置 Bioreactor wastewater treatment apparatus |
| 01/10/2001 | CN1279214A Process for treating sewage |
| 01/10/2001 | CN1279213A Activated filler for treating water |
| 01/09/2001 | US6171848 Enzyme-producing strain of Bacillus bacteria |
| 01/09/2001 | US6171847 Enzyme-producing strain of Bacillus bacteria |
| 01/09/2001 | US6171844 Microorganism and method for environmental purification using the same |
| 01/09/2001 | US6171500 Containing solids, by contacting with a bacterial culture produced by growth in a nonsterile hydrocarbon containing liquid that minimize degradation of oil, allowing oil and water layers to form, settling solids, separating layers |
| 01/09/2001 | US6171487 Dual-flow filter for biological effluent purification |
| 01/09/2001 | US6171480 Automated closed recirculating aquaculture filtration system |
| 01/04/2001 | WO2001000537A1 Process and apparatus for treating waste water |
| 01/04/2001 | WO2001000342A1 Apparatus for treating garbage |
| 01/03/2001 | EP1065173A1 Container having a perforated bottom with check valves and upwards flow |
| 01/03/2001 | EP1064070A1 Improvements to solid-liquid separating equipment in particular for biological purification of waste water |
| 01/03/2001 | CN2412899Y Improved oxidation channel aeration rotary disk |
| 01/03/2001 | CN2412898Y Rotary disk aerator |
| 01/03/2001 | CN2412897Y Volume changeable sewage treatment pit |
| 01/03/2001 | CN2412890Y Ultrasonic aeration device for treatment of waste water |
| 01/03/2001 | CN1278516A Artesian sewage treating process |
| 01/02/2001 | US6168717 Process for controlling foam in a treatment reactor |
| 01/02/2001 | US6168712 Apparatus for the biological treatment of waste fluid from the coating process |
| 12/28/2000 | WO2000078683A1 Purifying structures for doping physico-biological reactors |
| 12/27/2000 | EP1063202A2 Biotreatment of surfactants in wastewater |
| 12/27/2000 | EP1062349A2 Diisopropyl fluorophosphatase and the utilization and production thereof |
| 12/27/2000 | EP1062059A1 Bacterium capable of biodegradation of wastes |
| 12/27/2000 | EP0748373B1 Micro-organism culture method |
| 12/27/2000 | CN2412012Y Aerator |
| 12/27/2000 | CN1277943A Buried under earth type sewage treatment equipment using solar energy |
| 12/27/2000 | CN1277942A System for treatment of water or wastewater, and method using such system |
| 12/27/2000 | CN1059923C Detoxicating engineering bacteria and its application |
| 12/26/2000 | US6165371 Off-shore sewage treating and handling apparatus and method |
| 12/26/2000 | US6165359 High strength wastewater treatment system |
| 12/26/2000 | US6165356 Biofilter for emplacement in a contaminated groundwater aquifer for biodegradation of water contaminant such as trichloroethylene comprises bacterial cell biomass able to degrade the contaminant with longevity of 8 weeks or more |
| 12/26/2000 | US6163932 Process, using ammonia rich water for the selection and enrichment of nitrifying micro-organisms for nitrification of wastewater |
| 12/21/2000 | WO2000077171A1 Method of high-concentration culture of nitrifying bacteria or denitrifying bacteria contained in activated sludge, culture promoter to be used in high-concentration culture method of nitrifying bacteria, and mehtod of weight loss treatment of activated sludge |
| 12/21/2000 | WO2000076655A1 Fluidizing reactor and method for treatment of fluids |
| 12/21/2000 | WO2000076640A1 System and method for withdrawing permeate through a filter and for cleaning the filter in situ |
| 12/21/2000 | DE19927608A1 Tidal-powered water oxygenation assembly has no moving parts and requires little maintenance |
| 12/21/2000 | CA2374537A1 Method of high-concentration culture of nitrifying bacteria or denitrifying bacteria contained in activated sludge, culture promoter to be used in high-concentration culture method of nitrifying bacteria, and mehtod of weight loss treatment of activated sludge |
| 12/21/2000 | CA2374331A1 Fluidizing reactor and method for treatment of fluids |
| 12/20/2000 | EP1061049A1 Water treatment plant |
| 12/20/2000 | EP1060134A1 Method and device for treating aqueous flows in a bioreactor, an ultrafiltration unit and a membrane filtration unit, |
| 12/20/2000 | EP1060133A1 A method and a plant for biological purification of waste water |
| 12/20/2000 | EP1060132A1 Method and device for controlling biological waste purification plants |
| 12/20/2000 | EP1059996A1 System and method for capturing and destroying hap/voc substances using microbial degradation |
| 12/20/2000 | EP1059978A1 Filter bed differential pressure monitoring system |
| 12/20/2000 | EP0836644A4 Means and process for nitrate removal |
| 12/20/2000 | EP0748304B1 Improvements in bioremediation of hydrocarbon contaminated soils and water |
| 12/20/2000 | CN2411250Y Diaphragm microporous aeration apparatus for automatic proventing waste water return to air supply pipe |
| 12/20/2000 | CN1277157A Biological purification system and its jet control method |
| 12/20/2000 | CN1277156A Oxygen dissolving process and equipment for sewage treatment |
| 12/20/2000 | CN1059645C Iron method pre-treatment for molasses waste water marsh gas fermentation |
| 12/20/2000 | CN1059644C Method for treating black liquor of paper-making |
| 12/19/2000 | US6162635 Enzyme-producing strain of Bacillus bacteria |
| 12/19/2000 | US6162634 Enzyme-producing strain of Bacillus bacteria |
| 12/19/2000 | US6162359 Method for recuperating vent gas coming from an ozonization reactor |
| 12/19/2000 | CA2027143C Waste water treating process scheme |
| 12/14/2000 | WO2000039031A9 Advanced treatment for produced water |
| 12/14/2000 | DE19927227A1 Process for controlling and stabilizing the pH during material separation or decontamination comprises removing the catholyte or anolyte produced during primary electrolysis and subjecting to auxiliary electrolysis |
| 12/13/2000 | CN2410294Y Sewage purifier by microorganism used |
| 12/13/2000 | CN2410293Y Integral synchronous denitrification biological treatment reactor |
| 12/13/2000 | CN1276771A Method for reducing effect of detergents upon germination and/or growth of microorganisms |
| 12/12/2000 | US6159384 A differential pressure monitor for measuring the differential pressure across a filter bed so as to monitor a filter bed and achieve efficient control of filtration and backwashing |
| 12/12/2000 | US6159372 Method for treating waste water with a high concentration of organic matter by using ball shaped circulating and elongated stationary ciliary filter cakes |
| 12/12/2000 | US6159371 Constructed wetlands remediation system |
| 12/12/2000 | US6159365 For treating natural water or industrial wastewater to remove contaminants in a packaged modular treatment unit |
| 12/12/2000 | US6159364 Water treatment system based on denitrification |
| 12/12/2000 | CA2155106C Wastewater treatment process and apparatus |
| 12/07/2000 | WO2000073220A1 A disposal method for pig ordure |
| 12/07/2000 | WO2000073217A1 Prefabricated biological purification system |
| 12/07/2000 | WO2000073214A1 Denitrification process |
| 12/06/2000 | EP1057787A2 Denitrification promoter and a method of water treatment using the same |
| 12/06/2000 | EP1056691A1 Method and plant for the treatment of liquid organic waste |
| 12/06/2000 | EP1056689A1 Method for biologically treating effluents producing little or no excess sludge including a treating step by fixed film biomass |
| 12/06/2000 | EP1056688A1 Method and device for cleaning of leachate |
| 12/06/2000 | CN2409206Y Waste water purifier |
| 12/05/2000 | US6156205 Scrubbing a gas containing hydrogen sulphide and/or carbonyl sulphide, in which the spent scrubbing liquid is treated with autotrophic sulphide-oxidizing bacteria capable of oxidizing at high ph, and obtaining elemental sulphur |
| 12/05/2000 | US6156204 Waste water treatment, media therefor and its manufacture |
| 12/05/2000 | US6156203 Treating the pcb pollutant with butane-utilizing bacteria in the presence of butane and oxygen for a treatment time sufficient for the butane-utilizing bacteria to degrade the pcb pollutant |
| 11/30/2000 | WO2000071695A1 Novel phytochelatin synthases and uses therefor |
| 11/30/2000 | WO2000071475A1 Water circulation apparatus system and method |
| 11/30/2000 | WO2000071474A2 Method for biologically purifying waste water having a low nutrients content, as well as apparatus for carrying out such a method |
| 11/30/2000 | WO2000071473A1 Fluid purifying device using physical and/or biological reactors |
| 11/30/2000 | WO2000071466A1 Method and apparatus for treating contaminated material containing animal or vegetable waste oil or the like |
| 11/30/2000 | WO2000071236A1 Counterbalanced dual submarine-type liquid mixer pairs |
| 11/30/2000 | WO2000071235A1 Fluid mixing system |