| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 09/01/2005 | WO2005080277A1 Equipment for the biological activated sludge treatment of waste-water and procedure for its operation |
| 09/01/2005 | WO2005080276A1 Removal of carbon, nitrogen and phosphorus from waste water using fluidized beds |
| 09/01/2005 | WO2005012192A8 Bio degradation of oxyanions such as perchlorate on ion exchange resins |
| 09/01/2005 | US20050189300 Semi-submersible floating decanters and methods of using same |
| 09/01/2005 | US20050189295 Flowing influent wastewater into a first anaerobic region, measuring the phosphorus content with a microorganism biomass, flowing the mixed liquor into a second anaerobic region to ferment the organic components and form short chain fatty acids |
| 09/01/2005 | US20050189277 Denitrification system for nitrified wastewater or nitrified water |
| 09/01/2005 | DE20321026U1 Membrane module, immersed in a sewage treatment basin, has a controlled pump to take off the permeate to a liquid store and free outflow through a non-return valve |
| 09/01/2005 | DE202004006421U1 Addition-hardenable composition especially useful in long-life clarification basin membranes for waste water treatment contains an optionally filled HTV silicon rubber, catalyst, inhibitor and crosslinker |
| 09/01/2005 | DE102004006084A1 Process to render acidic water or water containing sulphate effluent from mining suitable for safe disposal or further use |
| 09/01/2005 | DE102004005216A1 Process and assembly to remove sediment or sludge from settlement basin by suction hose transported in zigzag route by land-based winch |
| 09/01/2005 | DE10031093B4 Vorrichtung zur Dreiphasentrennung bei der Behandlung von Abwasser und Schlamm Apparatus for three-phase separation during treatment of waste water and sludge |
| 09/01/2005 | CA2557070A1 Removal of carbon, nitrogen and phosphorus from waste water using fluidized beds |
| 08/31/2005 | EP1568662A1 Membrane bioreactor and method for wastewater treatment |
| 08/31/2005 | EP1568413A1 Gas processing device and combustion efficiency improving device for engines |
| 08/31/2005 | EP1567455A1 Bio degradation of oxyanions such as perchlorate on ion exchange resins |
| 08/31/2005 | EP1567454A2 Method for purifying waste water and corresponding waste water purification installation |
| 08/31/2005 | EP1567249A1 Mixing chamber |
| 08/31/2005 | EP1451115B1 Sewage treatment plant |
| 08/31/2005 | CN2721626Y Assembled environmental protective scenery wet land apparatus of submerged floating module |
| 08/31/2005 | CN2721625Y Waste water treater with improved anaerobic sludge fluidized bed with internal circulation |
| 08/31/2005 | CN2721624Y Intermitten active biological film treater of waste water |
| 08/31/2005 | CN2721623Y Enzyme promoted biological filter for sewage treatment |
| 08/31/2005 | CN2721622Y Hollow ceramic filler |
| 08/31/2005 | CN2721621Y Deodorizing system apparatus with biological filter |
| 08/31/2005 | CN2721620Y Water purifier with aeration for providing oxygen and underwater impeller |
| 08/31/2005 | CN1662458A Method of purifying fischer-tropsch derived water |
| 08/31/2005 | CN1662457A Method of purifying fischer-tropsch derived water |
| 08/31/2005 | CN1662456A Method of purifying Fischer-Tropsch derived water |
| 08/31/2005 | CN1662450A Method of purifying fischer-tropsch derived water |
| 08/31/2005 | CN1662137A Water distributor device for aquariums, ponds and the like provided with a possible biological filter |
| 08/31/2005 | CN1660706A Method for hamessing eutrophication of water body and bred hyacinth |
| 08/31/2005 | CN1660705A Cellural haydite and preparation method and dedicated equipment |
| 08/30/2005 | US6936170 Methods and apparatus for biological treatment of aqueous waste |
| 08/25/2005 | WO2005077845A1 Process for producing biogas |
| 08/25/2005 | WO2005077842A1 Improved waste treatment |
| 08/25/2005 | WO2005077841A1 Drain treating device |
| 08/25/2005 | WO2005077840A1 Mechanical aeration apparatus for treatment of sewage |
| 08/25/2005 | WO2005077839A1 Method for treating organic wastewater |
| 08/25/2005 | WO2005077838A1 Method for biological sewage treatment |
| 08/25/2005 | WO2005077837A1 Wastewater treatment apparatus |
| 08/25/2005 | WO2005077485A1 Effluent treatment |
| 08/25/2005 | WO2005047187A3 Biologically active reactor system and method for treating wastewater |
| 08/25/2005 | US20050184000 Wastewater treatment station in shipping container |
| 08/25/2005 | DE202005009636U1 Water treatment aeration membrane disc is made from hot-pressed rubber granules sandwiched between gauze panels |
| 08/25/2005 | CA2556403A1 Process for producing biogas |
| 08/24/2005 | EP1566498A1 Method of pumping wastewater, and wastewater pump |
| 08/24/2005 | EP1565918A1 Method for treating radioactive waste water |
| 08/24/2005 | EP1565409A1 A method for supplying oxygen to a water purification process |
| 08/24/2005 | EP1503850B1 Stirring and aerating device for activated sludges |
| 08/24/2005 | EP1423337A4 Biofilm reduction in crossflow filtration systems |
| 08/24/2005 | CN2719837Y Anaerobic bioreactor |
| 08/24/2005 | CN2719836Y Submersible flow-pushing aeration machine |
| 08/24/2005 | CN2719835Y Pipeline type two-phase biological septic tank |
| 08/24/2005 | CN2719834Y Improved bioreactor |
| 08/24/2005 | CN1657607A Simple method for screening sulfadiazing (SD) degradating bacterial for treating SD-contxined sewage |
| 08/24/2005 | CN1657444A Ultra concentrated algae bacteria microecological equipment suspension type water quality modifier and its preparation method |
| 08/24/2005 | CN1657443A Sewage treatment method using active sludge-biological filtering pond revere flow and integral device |
| 08/24/2005 | CN1657442A Method for purifying water of river and channel by biological grid |
| 08/24/2005 | CN1657441A Polypropylene filter material, its preparation method and a biofilm filtering device |
| 08/24/2005 | CN1657440A Four-segment type sewage treatment system for dispersed residences |
| 08/24/2005 | CN1657439A Aerobic biological pretreatment method for purificating raw water |
| 08/24/2005 | CN1657438A ODB-2 alkaline waste water treatment method |
| 08/24/2005 | CN1657437A Biological treatment agent for domestic sewage |
| 08/24/2005 | CN1657432A Technology for treating waste water generated by coking |
| 08/24/2005 | CN1656889A Method of improving ecological environment of enclosed seawater pond |
| 08/24/2005 | CN1215998C Push flow composite biological mud volume reducing reactor and its operation method |
| 08/24/2005 | CN1215993C Method of denitrification dephosphorization function of batch type operation reinforced membrane bioreactor |
| 08/24/2005 | CN1215992C Up-ward spiral flow bioreactor for sewage treatment and treatment system composed thereof |
| 08/24/2005 | CN1215991C Low temperature nitrobacter agent and use thereof |
| 08/24/2005 | CN1215987C Treatment of water containing waste organic matter with nitrate of aromatic amine |
| 08/24/2005 | CN1215986C Utilizing aromatic ammonium nitrate salt for treatment of water contg. organic refuse |
| 08/24/2005 | CN1215985C Sewage treatment device |
| 08/23/2005 | US6932540 Permeable water reservoir covers |
| 08/23/2005 | CA2172968C Diffuser conduit joint |
| 08/18/2005 | WO2005075365A1 Gas-liquid dissolution apparatus |
| 08/18/2005 | WO2005075364A1 Water purification solid material produced from natural raw material whose main component is polysaccharide and method of water purification therewith |
| 08/18/2005 | US20050178729 Maintenance cleaning for membranes |
| 08/18/2005 | US20050178725 Apparatus and method for controlling biomass growth in suspended carrier bioreactor |
| 08/18/2005 | US20050178723 Integrated system and method for purifying water, producing pulp and paper, and improving soil quality |
| 08/18/2005 | US20050178722 Integrated system and method for purifying water, producing pulp and paper, and improving soil quality |
| 08/18/2005 | DE102004001335A1 Small-scale sequencing batch water effluent treatment reactor has bell-shaped housing with pre-installed aggregate components |
| 08/18/2005 | CA2554958A1 Dissimilatory sulfate reduction as a process to promote denitrification in marine recirculating aquaculture systems |
| 08/18/2005 | CA2554704A1 Water purification solid material produced from natural raw material whose main component is polysaccharide and method of water purification therewith |
| 08/17/2005 | EP1563082A1 Process for anaerobic oxidation of methane |
| 08/17/2005 | EP1109747B1 Active purifying structures for lining and forming compact physico-biological filters |
| 08/17/2005 | CN2717942Y Life sewage vertical flowing-horizontal flowing composite artificial wet land treatment bed |
| 08/17/2005 | CN2717941Y Liquid floating cover sequential batch intermittent anaerobic reactor |
| 08/17/2005 | CN2717938Y Industral aquiculture waste water comprehensive treatment system |
| 08/17/2005 | CN1656026A Apparatus and method for waste water treatment |
| 08/17/2005 | CN1654631A Saccharomycete and its application |
| 08/17/2005 | CN1654626A Process for degrading polyvinyl alcohol by biochemical method |
| 08/17/2005 | CN1654375A Five-case integrated activated sludge iodide-removal and denitrogenation process |
| 08/17/2005 | CN1654374A Method for directly treating high temperature and high turbidity PVC mother liquor by using biologic filter |
| 08/17/2005 | CN1654373A Process for reusing sewage from flax degumming treatment |
| 08/17/2005 | CN1654367A Integrated anaerobic and aerobic oxidation channel |
| 08/17/2005 | CN1654366A Electrode biomembrane-SBR denitrification and dephosphorization equipment |
| 08/17/2005 | CN1654365A Method for enhancing activity of anaerobic sludge by using rare earth |
| 08/17/2005 | CN1654364A Waste water and gas simultaneously biological treating plant for garbage compression station |
| 08/17/2005 | CN1654363A Biological leaching method for supplying bottom material by suspending sulfur stuffing mode |
| 08/17/2005 | CN1654362A Stuffing composite rotating bio-disc sheet |