C02F 3 - Biological treatment of water, waste water, or sewage

Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453)
12/2006
12/27/2006	EP1736445A1 Anaerobic purification of heated waste water
12/27/2006	EP1736444A1 Pressurized biological wastewater purification process
12/27/2006	EP1736443A1 Wastewater treatment plant
12/27/2006	EP1735246A1 Water treatment
12/27/2006	EP1358005B1 Air diffuser and flushing method thereof
12/27/2006	CN2851257Y Aeration device for making microporous sintering pipe with different air-discharging resistance
12/27/2006	CN2851256Y Floating type biological awning
12/27/2006	CN2851255Y Low-energy-consumption sewage purifying and filtering tank
12/27/2006	CN2851254Y Bio-enzyme water treatment device
12/27/2006	CN1884482A Aerogenic enteric bacilli secreting alga-dissolving substance and its uses in myxophyceae algal tufa
12/27/2006	CN1884480A Method for screening allotrophic nitrobacteria
12/27/2006	CN1884152A Integrated device for treating domestic sewage on fluidized bed
12/27/2006	CN1884151A Bio-treatment method for dephosphorization and denitrogenation of sewage
12/27/2006	CN1884149A Method for treating waste water in production of 4,6-dinitro o-sec-butyl phenol
12/27/2006	CN1884148A Process for treating dyeing waste water with high COD value and high colour
12/27/2006	CN1884140A Photoayhthetic carbon-sequestration ecological denitrogenation process
12/27/2006	CN1884139A Vertical current and horizontal current integrated composite artificial wetland treatment method for treating urban sewage
12/27/2006	CN1884138A Method for domesticating daphnia pulex, A. diaphana King, or moina irrasa in lake to eat blue algae
12/27/2006	CN1884137A Movable siphonal water decanter
12/27/2006	CN1884136A Integrated self-refluxing multi-stage biochemical sewage treatment device
12/27/2006	CN1884135A Device for reducing excess sludge output by using predator
12/27/2006	CN1884134A Two-stage synchronous nitrification denitrification process for treating ammonia nitrogen wastewater
12/27/2006	CN1884133A Method for improving biological denitrification dephosphorization efficiency by using ultrasonic
12/27/2006	CN1884132A Bio-affinity water treatment filling
12/27/2006	CN1884131A 复合曝气式膜生物反应器 Composite membrane bioreactor aeration
12/27/2006	CN1884130A Low-power membrane bioreactor
12/27/2006	CN1884129A Ecological milk cow grassland wastes treating system and method
12/27/2006	CN1884128A Microorganism composite carrier and application thereof
12/27/2006	CN1884127A Process for high performance treatment of organic sewage and reduction of excess sludge output
12/27/2006	CN1884118A Ecological restoration method for enclosed or semi-enclosed landscape water bodies
12/27/2006	CN1883777A Immersion type membrane module and membrane filtering device
12/27/2006	CN1291927C Composite stereo biological hover bed
12/27/2006	CN1291926C Making process of spherical porous coaly biological filtering material for processing waste water
12/27/2006	CN1291925C Horizontal integrated three phase inner circulation fluidized reactor and its biological reaction process
12/26/2006	US7154000 Methods of using polylactate release compounds
12/26/2006	US7153435 Magnetic process for removing heavy metals from water employing magnetites
12/26/2006	US7153431 treatment of water or wastewater; will effectively remove soluble BOD
12/26/2006	US7153430 aerobic digestion of aqueous sewage; comminuted to reduce the median particle size of biomass using destructive cavitation; particles are preferentially ingested by predator organisms in the digestion stage so that they graze on the bacteria and biomass particles and reduce the amount of biomass
12/26/2006	US7153429 Method of optimizing influent conditions and chemical addition control for biological denitrification
12/26/2006	US7153428 Flooded densified leachbed anaerobic digestion
12/26/2006	US7153427 Nitrogen recovery system and method using heated air as stripping gas
12/26/2006	US7153423 Wastewater treatment
12/26/2006	US7153416 Apparatus for removing radioactive antimony from waste streams
12/26/2006	US7153393 4-stage process: equilibrium staged separation process for removing non-acid oxygenated hydrocarbons; evaporation to reduce the total mass fraction of organic constituents; biological treatment for removing dissolved organic carbon; and solid-liquid separation for removing solids
12/21/2006	WO2006135500A2 Method and apparatus for controlling sulfide generation
12/21/2006	WO2006135028A1 Method of feeding microbial activity controlling substance, apparatus therefor, and making use of the same, method of environmental cleanup and bioreactor
12/21/2006	WO2006134915A1 Apparatus for water treatment and method of treating water
12/21/2006	WO2005102943A3 Wastewater treatment
12/21/2006	US20060283796 Nitrifying method and treating method of water containing ammonium-nitrogen
12/21/2006	US20060283795 System And Method For Treating Wastewater Using Coir Filter
12/21/2006	US20060283794 Wastewater in the biological tank is aerated until measured nitrate or redox values meet high nitrate or high redox set value conditions relative to minimum aeration and maximum aeration time requirements; anoxic treatment
12/21/2006	US20060283793 Ultraviolet treatment unit and septic tank system
12/21/2006	CA2612154A1 Device for purifying anaerobic biological wastewater
12/21/2006	CA2611001A1 Method and apparatus for controlling sulfide generation
12/20/2006	EP1734014A1 Device and method for filtration of fluids
12/20/2006	EP1734012A1 Gas-liquid dissolution apparatus
12/20/2006	EP1734011A1 A method for improving flux in a membrane bioreactor
12/20/2006	EP1734010A1 Fixed bed reactor for anaerobic treatment of waste water
12/20/2006	EP1476403A4 Aerobic biomass granules for waste water treatment
12/20/2006	EP1448049B1 Process and means for the treatment of water in an aquaculture system
12/20/2006	CN2848844Y Sewage treatment device of artificial bioriver bed
12/20/2006	CN2848843Y Ecological floating island
12/20/2006	CN2848842Y Aeration biological filtering chamber
12/20/2006	CN2848841Y Aeration biological filtering chamber
12/20/2006	CN2848840Y Two section type dynamic membrane bioreactor
12/20/2006	CN2848829Y Cioculation utilization device of water resource
12/20/2006	CN2848828Y Installation for treating city black foul river
12/20/2006	CN1880583A Process for recovery of coastal natural wetland and multistage antisoil regulation and control technology therefor
12/20/2006	CN1880450A Process and apparatus for producing entrapping immobilization pellets
12/20/2006	CN1880248A Active organism treatment environment-friendly device for city domestic sewage
12/20/2006	CN1880243A Two-segment type latent current wetland sewage treatment method
12/20/2006	CN1880242A Waste water treatment process of almond processing factory
12/20/2006	CN1291009C Simple method for screening sulfadiazing (SD) degradating bacterial for treating SD-contained sewage
12/20/2006	CN1290780C Directly purifying method for ground surface water
12/20/2006	CN1290779C Process for treating and controlling waste water containing high concentration hazard rubbish chromium by high efficient function bacteria
12/20/2006	CN1290778C Culture method of microorganism for treating high temperature wastewater
12/20/2006	CN1290777C Method for controlling algae growth by using plant of scirpus maritimus and lotus leaves
12/20/2006	CN1290776C Livestock feces sewage treatment standard-reaching discharging technology
12/19/2006	US7150833 Method for forming microcultures within porous media
12/19/2006	US7150832 such as sewage sludge and animal manures; anaerobic digester; spray nozzle at or adjacent to its upper end for spraying an anti-foam liquid onto the contents of the vessel
12/19/2006	US7150831 Method of purifying fischer-tropsch derived water
12/14/2006	WO2006133358A2 Method and system for treating oxidized contaminant-containing matrix
12/14/2006	WO2006133139A1 A filter assembly, bioreactor catch basin and method of using the same
12/14/2006	WO2006132523A1 Anaerobic purification device
12/14/2006	WO2006131643A2 Method for enriching lignocellulose residues with yeast protein
12/14/2006	WO2006131219A1 Method ands device for purification of effluent
12/14/2006	US20060281167 Bacteria-based and enzyme-based mechanisms and products for viscosity reduction breaking of viscoelastic fluids
12/14/2006	DE10343743B4 Festbett für die aerobe oder anaerobe Abwasserreinigung Fixed bed for aerobic or anaerobic wastewater treatment
12/14/2006	DE102005026878A1 Verfahren und Vorrichtung zum Reinigen von Abwässern Method and apparatus for treatment of waste water
12/14/2006	DE102005026215A1 Verfahren und Vorrichtung zum Abzug einer Flüssigkeit aus einem Becken Method and apparatus for withdrawing a liquid from a basin
12/14/2006	DE102005025562A1 Denitrification of activated sludge comprises addition of raw glycerin as external source of carbon to a biological sewage purification plant for reducing phosphorus content during last quarter of biological phosphorus elimination process
12/14/2006	CA2605963A1 Anaerobic purification device
12/13/2006	EP1731487A1 Process and apparatus for the removal of a liquid from a basin
12/13/2006	EP1731213A1 Device for purifying a flow of fluid and method for using it
12/13/2006	EP1730259A1 Process
12/13/2006	CN2846411Y High effeciency synchronous biological dephosphating denitrification device
12/13/2006	CN2846409Y Combined multistage waste water treating device by biological film method
12/13/2006	CN2846408Y Series gas stripping internal circulation reactor
12/13/2006	CN2846407Y 生物滤球 Biological Filtration
12/13/2006	CN1876580A Highly effective filtering material for biology and its preparation method

1 ... 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 ... 465