| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 11/29/2001 | US20010045382 Selector contact stabilization process and apparatus for wastewater treatment |
| 11/29/2001 | DE10024594A1 Waste water filter membrane pendulum action filter cassette driven by continual supply of rising gas |
| 11/29/2001 | CA2408120A1 Improvements in or relating to biolytic filtration |
| 11/28/2001 | EP1157732A1 Device for purifying gases or liquids, such as air or water |
| 11/28/2001 | EP1156871A1 Diffuser assembly |
| 11/28/2001 | EP1156870A1 Device and method for the treatment of contaminated media |
| 11/28/2001 | EP1112232A4 Method of treating waste water |
| 11/28/2001 | EP1094701B1 Apparatus for oxygenating water |
| 11/28/2001 | EP0998430B1 Method and device for the biological treatment of a fluid with biogas generation |
| 11/28/2001 | EP0993420B1 Device for mixing and aerating liquids |
| 11/28/2001 | CN2461921Y Automatic sewage purifier |
| 11/28/2001 | CN2461920Y Aerator |
| 11/28/2001 | CN2461919Y Plum blossom-shape multiporous disk-shape suspension filling |
| 11/28/2001 | CN1323749A Anerobic hydrolysis and high-performance biological filter as water treating system |
| 11/28/2001 | CN1075472C Two-phase anaerobic membrane-biologic system and process for treatment of waste water |
| 11/27/2001 | US6322700 Engineered in situ anaerobic reactive zones |
| 11/27/2001 | US6322699 Process for purification of waste waters and contaminant spills based on the use of cultivated emergent macrophytes converted into floating cultures |
| 11/27/2001 | US6322056 Submarine type liquid mixer with aeration |
| 11/27/2001 | US6322055 Gas dissolving apparatus and method |
| 11/22/2001 | WO2001087781A1 Method and device for the aerobic, biological purification of waste water |
| 11/22/2001 | WO2001087777A2 Filter devices and methods of use |
| 11/22/2001 | DE10009014A1 Microbiological purification of water uses fixed microorganisms in tank with two chambers, allowing alternate submerged and non-submerged operation |
| 11/22/2001 | CA2409235A1 Filter devices and methods of use |
| 11/21/2001 | EP1156016A2 Process and apparatus for purifying domestic waste waters |
| 11/21/2001 | EP1156015A1 Process and plant for filtrate generation from the stream of recycled sludge |
| 11/21/2001 | EP1155752A1 Method and apparatus for purifying polluted substances containing halogenated organic compound |
| 11/21/2001 | EP1154956A1 Method for microbially cleaning up sulphuric-acid residual mining pools |
| 11/21/2001 | EP0963352B1 Modular water treatment plant and method for operating same |
| 11/21/2001 | CN2460519Y Device for treatment of micro-organics in underground water |
| 11/21/2001 | CN2460518Y Micro-pollution raw water and sewage treatment device for water supply |
| 11/21/2001 | CN2460512Y Upper-drainage decanting apparatus |
| 11/21/2001 | CN1323394A Apparatus and method for measuring Nox and nitrification/denitrification rates in biochemical processes |
| 11/21/2001 | CN1322681A Biological flocculant prepared with Nocardia bacteria |
| 11/21/2001 | CN1322680A Biochemical process of treating metal-containing waste water |
| 11/21/2001 | CN1322679A No-backflow high-load biological filter tank water treating system |
| 11/21/2001 | CN1322464A Concentrated probiotics culture liquid for aquatic farming and its usage |
| 11/20/2001 | US6319873 Non-corrosive, non-toxic, finely divided, and of large specific area |
| 11/20/2001 | US6319706 Device for use in the bioremediation of polluted soils |
| 11/20/2001 | US6319409 Adding polyamine cationic compound to coagulate; flocculation with polyacrylic acid; separation by flotation; digestion organic substances by activated sludge; settling, filtration |
| 11/20/2001 | US6319408 Drawing waste from septic tank into distiller; returning residue |
| 11/20/2001 | US6319407 Denitrification, nitrification and nitration; phosphor and nutrient removal; exposing biomass adhering to solid support to alternating oxidation and reduction; removal of surface sludge |
| 11/20/2001 | US6319405 Wastewater disposal system |
| 11/20/2001 | US6319396 Clarifier cone for filtering and separating solids from solution |
| 11/20/2001 | US6318705 Aspirator |
| 11/20/2001 | US6318387 Parts washing system |
| 11/20/2001 | US6318292 Clean water system and structure of the system |
| 11/19/2001 | CA2347941A1 Wastewater treatment plant |
| 11/15/2001 | WO2001085625A1 Waste water treatment method using a mixture of enzymes |
| 11/15/2001 | WO2001085624A1 Apparatus and method for controlling liquor circulation flow in long vertical shaft bioreactors |
| 11/15/2001 | WO2001085623A1 Process and plant for the efficiency solubility of gas and sludge mixing |
| 11/15/2001 | US20010040134 Improves efficiency and efficacy of waste water treatment by providing economical way to oxygenate waste water at early stage in treatment process and reduce odor caused by anaerobic reactions of sulfur |
| 11/14/2001 | EP1153892A1 Cleaning product containing enzymes |
| 11/14/2001 | EP1153891A1 Process for biological and/or physical elimination of undesired substances from water |
| 11/14/2001 | EP1152984A1 Novel method for filtering surface water with thin supernatant layer and implementing plant |
| 11/14/2001 | EP1012254A4 Method for reducting bioavailability of lead by a lead-sequestering soil bacterium |
| 11/14/2001 | CN2459317Y No float force pipe type microporous aerator |
| 11/14/2001 | CN1074752C Tank for aerobic purification of water for cattle drinking in which |
| 11/13/2001 | US6315904 Introducing sulphate-containing waste water into facultative pond having anaerobic pit upflow digester and oxygenated surface layer of water; mixing organic carbon source which exhibits chemical oxygen demand; biological sulphate reduction |
| 11/13/2001 | US6315903 Grinding and emulsifying waste; heating emulsion in first chamber heating vessel; removing primary solids; heating in second chamber heating vessel; de-emulsifying to form layer of fats, oils and grease and removing layer; separation |
| 11/13/2001 | US6314676 Hydroponic plant culture systems |
| 11/08/2001 | WO2001083383A1 Electromechanical aerator for aeration of liquids |
| 11/08/2001 | WO2001083382A1 Method for the biological anaerobic treatment and reduction of excess sludges |
| 11/08/2001 | WO2000013787A3 Oil sorbent composition |
| 11/08/2001 | DE10022133A1 Small scale sewage treatment plant comprises treatment tank whose cross-section is circular or forms part of a circle which is fitted with aerator at its base |
| 11/08/2001 | DE10021632A1 Reducing excess sludge production in an aerobic wastewater treatment plant comprises treating a mixture of excess sludge and clarified water with ozone |
| 11/07/2001 | EP1151967A1 Method and apparatus for treating contaminated material containing animal or vegetable waste oil or the like |
| 11/07/2001 | EP1151786A1 Gas-liquid mixing device |
| 11/07/2001 | EP1150922A1 Method for treating a waste stream using photosynthetic microorganisms |
| 11/07/2001 | EP0999997B1 Process for decoloring liquids |
| 11/07/2001 | CN2458303Y Pulse water intake and distributing deivce for sewage treating anaerobic reactor |
| 11/07/2001 | CN2458302Y Strip type whole rotating suspension filling |
| 11/07/2001 | CN2458301Y Biochemical treating tank for industrial waste water |
| 11/07/2001 | CN2458300Y Waste water treating final filtering tank |
| 11/07/2001 | CN2458299Y Integrated biochemical treating tank |
| 11/07/2001 | CN1320569A Method and apparatus for denitrogenating and phosphorous removal treatment of sewage |
| 11/07/2001 | CN1320568A Physiological microbe-earthworm filter pool system for treating household sewage |
| 11/07/2001 | CN1320566A Foamed ceramic filler |
| 11/06/2001 | US6313374 Method of using pelarogonium sp. as hyperaccumulators for remediating contaminated soil |
| 11/06/2001 | US6312605 Sparge system extracts contaminants in the form of gas from groundwater in a gas/gas/water reaction; microporous diffuser having a porosity matched to a soil porosity. |
| 11/06/2001 | US6312600 Data processing system analyzes the oxidoreduction potential evolution and establishes a diagnosis of the aeration/biology couple to ensure the degradation reactions of the carbonaceous and nitrogenous pollution. |
| 11/06/2001 | US6312599 Performing hydrolysis of atp as the first stage of biological phosphorus reduction, selective reduction of biological oxygen demand deamination, and denitrification of nitrate and nitrite compounds |
| 11/01/2001 | WO2001081254A1 Shipboard biomechanical oil water separator |
| 11/01/2001 | WO2001081249A1 Formation of composite materials with expandable matter |
| 11/01/2001 | WO2001032565A3 Method for purification of effluent water |
| 11/01/2001 | CA2406208A1 Formation of composite materials with expandable matter |
| 10/31/2001 | EP1149918A1 Process for the oxidation of hydrocarbons by use of microorganisms |
| 10/31/2001 | EP1149804A2 Process for nitrifying denitrifying organic waste water |
| 10/31/2001 | EP0958036A4 Membrane system for treating sanitary wastewater |
| 10/31/2001 | DE10015453A1 Production of ultra-pure water involves passing water through biofilter followed by dosing with biostatic agent before passing through reverse osmosis membrane filter to reduce total organic carbon content efficiently without biofouling |
| 10/31/2001 | CN2457143Y High efficiency mixed flow oxygen enriching aerator for waste water treatment |
| 10/31/2001 | CN2457142Y Aerobic device of energy consumption less waste water treatment equipment |
| 10/31/2001 | CN2457141Y Anaerobic fluidized bed waste water treatment device of high efficiency internal circulation active sludge |
| 10/31/2001 | CN2457140Y Multi-way flow unit alternative bioloigcal contact oxidation waste water treatment device |
| 10/31/2001 | CN2457139Y Inner circular flow biological self fixation oxidation pool |
| 10/31/2001 | CN2457138Y Biological shaft for treating waste water |
| 10/31/2001 | CN1319569A Electrode holder for sewage |
| 10/31/2001 | CN1073869C Fluidized bed filtering apparatus |
| 10/30/2001 | US6309597 Method for reducing hydrogen sulfide level in water containing sulfate-reducing bacteria and hydrogen sulfide-metabolizing bacteria |
| 10/30/2001 | US6309553 Phase separator having multiple separation units, upflow reactor apparatus, and methods for phase separation |
| 10/30/2001 | US6309548 Method for controlling and managing the biomass store of biological installations treating waste water |