| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 04/18/2007 | CN1948176A Hanging membrane wave eliminator having sand settling wave eliminating and cleaning function |
| 04/17/2007 | US7205429 Method for disposal of waste from acrylic acid process and acrylic ester process |
| 04/17/2007 | CA2211552C Process for aerobic treatment of waste water |
| 04/12/2007 | WO2007040397A1 Method and plant for the treatment of an aqueous waste stream |
| 04/12/2007 | WO2007038843A1 Dynamic control of membrane bioreactor system |
| 04/12/2007 | WO2006114552A3 Method for purifying effluent in an anaerobic reactor |
| 04/12/2007 | DE102005048146A1 Discontinuous waste water purification using differentiated internal cycle strategies-sequencing batch reactor, comprises supplying waste water from buffer tank to the sequencing batch reactor with two internal cycles |
| 04/12/2007 | CA2622930A1 Dynamic control of membrane bioreactor system |
| 04/11/2007 | EP1771389A1 A biofilm reactor |
| 04/11/2007 | EP1539325B1 Use of a coconut mesocarp-based biofilter material in a wastewater treatment system. |
| 04/11/2007 | CN2887857Y Submerged bio-membrane and active sludge composite bio-treatment system |
| 04/11/2007 | CN2887856Y Underground powerless sewage treatment apparatus |
| 04/11/2007 | CN2887855Y Ecological backflow artificial filter bed |
| 04/11/2007 | CN2887854Y Aerobic biochemical treatment and separation assembly |
| 04/11/2007 | CN2887853Y Sewage treatment equipment |
| 04/11/2007 | CN2887050Y Float disk type planter for aquatic plant |
| 04/11/2007 | CN1946471A Immersed-membrane water treating filtering device comprising means preventing filterable medium backflowing to filter cleaning gas injecting means |
| 04/11/2007 | CN1944293A Deeply sewage treating method and its device without mud discharging |
| 04/11/2007 | CN1944288A Method for deodorizing waste water using perfume plant as deodorant |
| 04/11/2007 | CN1944287A Micro ecological system unit and its use in water environment treatment |
| 04/11/2007 | CN1944286A Combined temperature increasing device and method by anaerobic degesting greenhouse and solar water heater |
| 04/11/2007 | CN1944285A Use of rare-earth element in cultivating aerobic particle mud and controlling mud expansion |
| 04/11/2007 | CN1944284A Technology for biologically treating waste water with natural ecological active filler |
| 04/11/2007 | CN1944283A Mud ceramic ball for purifying landscape water environment and its preparing method |
| 04/11/2007 | CN1944282A Membrane bioreactor |
| 04/11/2007 | CN1309666C Ecology process of controlling nitrite in fish and shrimp pond |
| 04/11/2007 | CN1309665C Nitrogen and phosphorus removing process-NPR process |
| 04/11/2007 | CN1309664C Reinforced biological contacting oxidation water correction apparatus |
| 04/10/2007 | US7201847 A simple sugar accelerates phenoloxidase production which break down lignin; conversion cellulose and hemi-cellulose to glucose |
| 04/05/2007 | WO2007037770A1 Method for producing immobilised bacteria cells |
| 04/05/2007 | WO2007036512A1 Reactor and method for anoxia treatment of a substance in a fluid reaction medium |
| 04/05/2007 | WO2007036229A1 A multi-phase process and plant for treatment of wastewater |
| 04/05/2007 | WO2007036008A1 Improvement on a system for treating residual water |
| 04/05/2007 | WO2006137736A3 Device and method for treatment of waste water |
| 04/05/2007 | US20070075019 Covering the surface of biologically treated wastewater with hollow bodies floating on the wastewater surface; each body has a contiguous outer surface and a mass greater than 200 grams so that 30 - 70 % of the body's outer surface is exposed to atmosphere during use. |
| 04/05/2007 | US20070075018 Method and product for the residential and commercial aquatic environment |
| 04/05/2007 | US20070075017 Method and apparatus for treating wastewater |
| 04/05/2007 | DE102005044255A1 Load profile recognition of the biological cleaning stages to operate wastewater purification plant, where the profile recognition is derived from nitrogen load, biological oxygen demand-5-load, and nitrification-denitrification activity |
| 04/05/2007 | CA2623985A1 Reactor and method for anoxic treatment of a material in a fluid reaction medium |
| 04/04/2007 | EP1769073A1 Product for environmental biotreatment |
| 04/04/2007 | EP1768934A1 A method and apparatus for biologically processing fluid |
| 04/04/2007 | CN2885848Y Front-mounted short-range bio-denitrification control device for treating domestic sewage in denitrification process |
| 04/04/2007 | CN2885847Y Waterpower control device for man-made wetland seepage surface |
| 04/04/2007 | CN2885846Y Concentric circle-shape movable guide wall type circulation flow reactor |
| 04/04/2007 | CN1939847A Apparatus and method for treating high-concentration nitrogen-containing dirty waste water such as waste water from livestock farmer and excreta |
| 04/04/2007 | CN1308439C Biological denitrification method for ammonium-nitrogen-containing waste water and microbes thereof |
| 04/04/2007 | CA2522121A1 Aeration system |
| 04/03/2007 | US7198721 Cyclic aeration system for submerged membrane modules |
| 04/03/2007 | US7198720 Bringing sludge into contact with a sludge degrading agent containing, as an active ingredient, microorganisms containing an actinomyces belonging to Streptomyces; degrading the sludge; separating the degraded sludge into a solid content and a liquid content; and producing recycled water from the liquid |
| 04/03/2007 | US7198717 Anoxic biological reduction system |
| 04/03/2007 | US7198716 Phased activated sludge system |
| 04/03/2007 | CA2101627C A reactor |
| 03/29/2007 | WO2007034582A1 Water treatment system |
| 03/29/2007 | WO2007033624A1 Water treatment system and method for purifying waste water from culture tanks for animals who live in water |
| 03/29/2007 | WO2007033393A1 Method for the treatment of ammonium-containing effluent by means of ph-regulation |
| 03/29/2007 | WO2007010068A3 Composition and method for the treatment of industrial and urban solid and semi-solid waste containing biodegradable organic material |
| 03/29/2007 | WO2007002201A3 Method for concentrated growth of a paraffinophilic microorganism for bioremediation and an associated apparatus |
| 03/29/2007 | US20070072284 Nitrite-Type Nitrification Carrier and Method for Producing the Same and Method and Apparatus for Removing Nitrogen Using the Same |
| 03/29/2007 | US20070072283 Nitrite-Type Nitrification Carrier and Method for Producing the Same and Method and Apparatus for Removing Nitrogen Using the Same |
| 03/29/2007 | US20070068869 Waste water containing micro-nano bubbles is mixed with sludge containing microorganisms; in oxidation tank waste water containing organofluoric compounds is microbially treated by micro-nano bubbles added to waste water; bubbles activate microorganisms in waste water, decomposing organofluoric compounds |
| 03/29/2007 | DE102006004639A1 Verfahren und Vorrichtung zur Brauchwasseraufbereitung Method and apparatus for water treatment |
| 03/29/2007 | DE102005045170A1 Biological purification of waste water, e.g. municipal waste water, includes selective removal of hydrophobic sludge from activation tank by introducing gas bubbles to drive sludge to the liquid surface |
| 03/28/2007 | EP1767499A1 Method and installation for industrial water treatment |
| 03/28/2007 | EP1767498A1 Aeration method, aeration apparatus and aeration system |
| 03/28/2007 | EP1767497A1 Entrapping immobilization pellets, process for producing the same, and method for storing or transporting the same |
| 03/28/2007 | EP1767284A1 Method of biomass processing |
| 03/28/2007 | EP1766144A2 Wastewater treatment |
| 03/28/2007 | EP1765734A1 Device and method for the treatment of water |
| 03/28/2007 | CN2883358Y Water plants biomembrane circulation pushing water treatment unit |
| 03/28/2007 | CN2883357Y A/O tech counter-nitration procedue sewage treatment controller |
| 03/28/2007 | CN2883356Y On-line controller of continuous flow biological denitrogenation techn nitration procedue |
| 03/28/2007 | CN2883355Y Sewage treatment and ultilization Ecological pool |
| 03/28/2007 | CN2883354Y Recirculation ultilizing treatment system for sewage |
| 03/28/2007 | CN2883353Y Strengthened composite biological sewage treatment system |
| 03/28/2007 | CN2883352Y Biochemical degradation and purification treatment system |
| 03/28/2007 | CN1938233A Method for treating ammonia-containing wastewater |
| 03/28/2007 | CN1938232A Equipment for the biological activated sludge treatment of waste-water and procedure for its operation |
| 03/28/2007 | CN1935708A Treatment device with bio-sludge degrading and denitrogenation, and its operating method |
| 03/28/2007 | CN1935707A Small-sized sewage treating system |
| 03/28/2007 | CN1935706A Brewex's grains waste water treating process |
| 03/28/2007 | CN1935702A Section combined lifting sewage aeration apparatus |
| 03/28/2007 | CN1935700A Nutrient-rich river-lake water body and initial rainwater composite artificial wet land treating system |
| 03/28/2007 | CN1935699A Arsenic polluted water body repairing method and apparatus |
| 03/28/2007 | CN1935698A Efficient composite anaerobic reactor for treating high-concentration organic waste water |
| 03/28/2007 | CN1935697A Integrated membrane biological fluidized bed sewage treating method and apparatus |
| 03/28/2007 | CN1935696A Filler-changeable artificial wet land reinforced phosphor-removing denitrifying method and reinforced phosphor-removing denitrifying tank |
| 03/28/2007 | CN1935695A Rotary siphon decanting machine |
| 03/28/2007 | CN1935694A Nonwoven fabric rotating bio-disc reactor concurrently nitrifying anaerobic ammonia oxidation process |
| 03/28/2007 | CN1935693A Method for treating acetic peracid containing waste water |
| 03/28/2007 | CN1935692A Entrapping immobilization carrier, process for producing the same, and method for storing or transporting the same |
| 03/28/2007 | CN1935691A Method for repairing water body utilizing biomembrane and special biomembrane reactor |
| 03/28/2007 | CN1935690A Composite microelectrolytic/biomembrane reaction apparatus and its sewage treating method |
| 03/28/2007 | CN1935689A Apparatus and method for treating sewage by air-lift internal circulating membrane bioreactor |
| 03/28/2007 | CN1935688A Water treatment method utilizing inserted algae bio-biomembrane system |
| 03/28/2007 | CN1935681A Anoxybiotic/aerobic two-section internal electrolysis organic waste water treating method |
| 03/28/2007 | CN1935640A Palm root carbon preparing process and its biomembrane reaction apparatus |
| 03/28/2007 | CN1307388C Method for treating wastes produced by acrylic acid process and acrylic ester process |
| 03/28/2007 | CN1307112C Reactor with a three-phase separating device and method for separating a three-phase mixture |
| 03/27/2007 | US7195712 Wastewater treatment apparatus and method for removing nitrogen and phosphorus |
| 03/27/2007 | US7195707 Apparatus for determining weight and biomass composition of a trickling filter |