| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 07/27/2005 | CN1644514A Sewage purifying method with hydrolyzation-contacting stabilization-three-dimensional ecological soil treating system |
| 07/27/2005 | CN1212278C Stereo-thin-layer wet land technique for treating eutrophication water and its filtering block |
| 07/26/2005 | US6921489 Aerated grit chamber and method |
| 07/26/2005 | US6921486 Pollution control; production of biomass |
| 07/26/2005 | US6921485 Two phase anaerobic organic matter treatment and system |
| 07/26/2005 | US6921483 Bioreactor process using an airlift membrane device and membrane bioreactor |
| 07/21/2005 | WO2005066081A1 Waste water treatment plant and method |
| 07/21/2005 | US20050158840 Using microorganisms to remove brownish coloring from pulp and paper mill waste; pollution control; papermaking |
| 07/21/2005 | US20050155931 System and method for composting-free disposal of organic wastes |
| 07/21/2005 | US20050155930 Biological digestion of waste fluids with particles communiting step |
| 07/21/2005 | US20050155929 Water treatment method |
| 07/21/2005 | US20050155922 Water circulation systems for ponds, lakes, and other bodies of water |
| 07/20/2005 | EP1555245A2 A biologial method of phosphorous removal and biological phosphorous-removing apparatus |
| 07/20/2005 | EP1554222A2 Method for reducing sludge of a biological ozone treatment system |
| 07/20/2005 | CN2711157Y Water circulation flow type aquiculture system with grass water-planting and filtration equipment |
| 07/20/2005 | CN2711156Y Two-section SBR process equipment for removing organic pollutant and denitrification from waste-water |
| 07/20/2005 | CN2711155Y High efficiency aerating and filtering machine utilizing water power of its-self |
| 07/20/2005 | CN2711154Y Aeration and agitation equipment |
| 07/20/2005 | CN2711153Y Integrated waste-water treatment equipment |
| 07/20/2005 | CN2711152Y Hollow filament membrance subassembly |
| 07/20/2005 | CN1642865A Circular installation for the biological treatment of wastewater |
| 07/20/2005 | CN1640828A Integrated middle-water reuse apparatus |
| 07/20/2005 | CN1640827A Aeration air-flow control device for sewage treatment plant |
| 07/20/2005 | CN1640826A Aeration air-flow control device for sewage treatment plant |
| 07/20/2005 | CN1640825A Rotary flow aeration biological filter |
| 07/20/2005 | CN1640824A Method for treating waste dregs liquid for brewing such as making sugar by alcohol |
| 07/20/2005 | CN1640822A Method for clarifying waste water containing organic material |
| 07/20/2005 | CN1211652C Electrochemical method for enrichment of microorganism, biosensor for analyzing organic substance and BOD |
| 07/20/2005 | CN1211297C Foaming aerating disc |
| 07/20/2005 | CN1211296C Inorganic filler for biotreating polluted water and production method thereof |
| 07/14/2005 | WO2005063632A1 Method for the removal of heavy metal ions from highly-concentrated solutions containing heavy metal ions |
| 07/14/2005 | WO2005063011A2 Method and apparatus for biosustaining waste activated vermicular environment |
| 07/14/2005 | US20050150829 a system comprising a submerged denitrification reactor, a submerged aerated filter and a deep bed denitrification filter for biological treatment of pollutants in wastewater |
| 07/14/2005 | US20050150823 Adaptable water purification apparatus |
| 07/14/2005 | US20050150042 Water distributor device for aquariums, ponds and the like provided with a possible biological filter |
| 07/13/2005 | EP1553058A1 Method and apparatus for the biological treatment of a suspension in a bioreactor with integrated hydraulic singing layer withdrawal |
| 07/13/2005 | EP1553057A1 Method and apparatus for biological treatment of a suspension in a bioreactor with integrated hydraulic treatment of floating sludge |
| 07/13/2005 | EP1551774A2 Water purification by means of catalytic surfaces and microorganisms |
| 07/13/2005 | EP1313669A4 Method and apparatus for treating wastewater using membrane filters |
| 07/13/2005 | EP1286922B1 Method for biological cleaning of wastewater |
| 07/13/2005 | EP1204608B9 Method of purifying water, suitable bacteria for the method and use thereof |
| 07/13/2005 | CN2709437Y Integral, sewage treatment equipment |
| 07/13/2005 | CN2709434Y Reactor of treatment of organic waste water containing high amino nitrogen |
| 07/13/2005 | CN2709433Y Rotable biological stereoelastic filling device |
| 07/13/2005 | CN2709432Y Integral membrane biological reactor |
| 07/13/2005 | CN2709422Y Solar sewage concentration and water filtering device |
| 07/13/2005 | CN2708980Y High speed filter using fiber filtering material |
| 07/13/2005 | CN1639074A Pre- and post-treatment system and method for periphyton filtration using ozone |
| 07/13/2005 | CN1210399C Active carbon composite hydrophili polyurethane foamed microorganism fixed carrier |
| 07/13/2005 | CN1210395C Heterotrophic nitrobacteria, culturing method and application thereof |
| 07/13/2005 | CN1210217C Method and appts. for reducing excessive mud |
| 07/12/2005 | US6916651 Heat treated immobilized microorganism support for enviroment remediation |
| 07/12/2005 | US6916422 Self-adaptive method for regulating an effluent treating plant, in particular for waste water |
| 07/12/2005 | US6916421 Vertical vortex or laminar flow interactive bio media water treatment device |
| 07/07/2005 | WO2005061398A1 A system for water treatment |
| 07/07/2005 | WO2005061397A1 Method for stabilization of biological cultures to allow biological treatment of brines |
| 07/07/2005 | WO2005061135A1 An energy system |
| 07/07/2005 | WO2005060425A2 Membrane modules and integrated membrane cassettes |
| 07/07/2005 | US20050150003 Method for improving phytoremediation treatment of a contaminated medium |
| 07/07/2005 | US20050146063 Plastic molded body with smaller pores on outflow side than opposite inflow side; sewage treatment plants; simple production; low pressure loss; mechanical stability, durability; high oxygen yielding performance; easily cleaned of deposits and incrustations |
| 07/07/2005 | US20050145566 Methods, processes and apparatus for bio-solids recycling and the product of bio-solids from such methods, processes and apparatus |
| 07/07/2005 | US20050145563 Minimizes the size of the system required to output high-quality, environmentally-suitable, water depleted of ammonia, nitrites, nitrates, perchlorates and other contaminants; using carbohydrate and an alcohol |
| 07/07/2005 | US20050145546 Method and apparatus for determining weight and biomass composition of a trickling filter |
| 07/07/2005 | DE202005006801U1 Small scale water effluent treatment assembly has pumps, aeration unit and pipes held within a clamp |
| 07/07/2005 | DE202004020437U1 Biologische Klärvorrichtung Biological clarifier |
| 07/07/2005 | DE202004020436U1 Biologische Klärvorrichtung Biological clarifier |
| 07/07/2005 | DE10358400A1 Biological treatment of suspension of, e.g. waste water, sewage sludge, in bioreactor by feeding horizontal jet(s) of fluid superimposing on vertical flow in bottom part of bioreactor |
| 07/07/2005 | DE10358399A1 Biological treatment of wastewater, sewage sludge or waste suspension in bioreactor, by feeding fluid in area of suspension fill level to cause rotary flow of surface of suspension and/or of top scum floating on surface of suspension |
| 07/07/2005 | DE10358234A1 Up-flow anaerobic sludge blanket waste water treatment modular assembly has chicane partitions to gas outlet and collector chamber |
| 07/07/2005 | DE10356938A1 Drive system for waste water treatment plant or sewage treatment plant has piston engine or turbine driven by compressed nitrogen |
| 07/07/2005 | DE10352636A1 Verfahren und Anlage zur Aufbereitung von Abwässern auf Schiffen Method and apparatus for treatment of waste water on ships |
| 07/07/2005 | CA2547593A1 Membrane modules and integrated membrane cassettes |
| 07/06/2005 | EP1550638A1 Method of reducing volume of sludge and apparatus therefor |
| 07/06/2005 | EP1549590A1 Wastewater biological treatment system and method therefor |
| 07/06/2005 | CN2707745Y Tower type ecological filter tank |
| 07/06/2005 | CN2707744Y Manifold for membrane-bioreactor |
| 07/06/2005 | CN1634775A Integrated non-woven cloth bioreactor |
| 07/06/2005 | CN1209305C Preservation method for anaerobic bacteria in granulated sludge |
| 07/06/2005 | CN1209301C Disposal method of sewage containing high concentration organics and ammonia nitrogen |
| 07/06/2005 | CN1209300C Biological treating equipment suitable for organic waste water |
| 07/06/2005 | CN1209299C Method for biological purification of effluents using biofilm supporting particles |
| 07/06/2005 | CN1209298C High-effective block-resisting soil biological waste water treatment system |
| 06/30/2005 | WO2005058764A1 Anaerobic digestion apparatus for organic waste liquid |
| 06/30/2005 | WO2005058759A2 Flow-through oxygenator |
| 06/30/2005 | WO2005058456A1 Sedimentation tank of a clarification plant |
| 06/30/2005 | WO2005058451A1 Method for mixing and subsequently separating a multiphase fluid and an arrangement for carrying out said method |
| 06/30/2005 | WO2005033262A3 Method and device for culturing live cells by coupling a bioreactor receiver with a selection automation |
| 06/30/2005 | US20050142011 Water circulation systems for ponds, lakes, and other bodies of water |
| 06/30/2005 | US20050139546 Nitrogen recovery system and method using heated air as stripping gas |
| 06/30/2005 | DE19625184B4 Verfahren zur Aufbereitung von Prozeßwasser aus einer Flaschenreinigungsmaschine Process for the treatment of process water from a bottle washer |
| 06/30/2005 | CA2547162A1 Flow-through oxygenator |
| 06/29/2005 | EP1547978A2 Device for treating water |
| 06/29/2005 | EP1547977A1 Process for the treatment of waste water |
| 06/29/2005 | EP1546046A1 A method for digestion of sludge in water purification |
| 06/29/2005 | EP1546045A2 Controlling wastewater treatment processes |
| 06/29/2005 | EP1545753A1 Strip diffuser pct i |
| 06/29/2005 | CN2706466Y Circular drip filter bed rotary water distributor |
| 06/29/2005 | CN2706465Y Bioaeration filter pond |
| 06/29/2005 | CN2706464Y Composite multifunction water quality treatment machine |
| 06/29/2005 | CN2706460Y Antileakage fast assembling type water master cap |