Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 9 - Multistep treatment of water, waste water or sewage
Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429)
10/2012
10/10/2012CN102718372A Roller shutter type recycle-ratio-adjustable oxidation ditch device and operation method thereof
10/10/2012CN102718371A Treatment method and treatment equipment for coal chemical industry wastewater
10/10/2012CN102718370A Method for treating total nitrogen in coking wastewater by utilizing microorganisms
10/10/2012CN102718369A Method for recycling wastewater obtained from cellulosic ethanol production
10/10/2012CN102718368A Method for treating high-concentration phenol-contained wastewater into easily-biochemically-treated wastewater
10/10/2012CN102718367A Method and system for ecological wetland treatment of landscape water
10/10/2012CN102718366A Sewage treatment system
10/10/2012CN102718365A Buried sewage treatment device
10/10/2012CN102718364A Step water purification system
10/10/2012CN102718363A Coking wastewater comprehensive treatment method and system thereof
10/10/2012CN102718362A Biological treatment method for wastewater produced by acrylonitrile
10/10/2012CN102718361A Soil capillary percolating water treatment process
10/10/2012CN102718360A Integrated livestock breeding waste water treatment method
10/10/2012CN102718359A MBR (membrane bioreactor)-based system and method for oil refining wastewater biochemical treatment and membrane component cleaning method
10/10/2012CN102718358A Sewage treatment method
10/10/2012CN102718357A O3-BAC water treatment process and matched drinking water treatment device thereof
10/10/2012CN102718356A Sewage treatment method in caramel pigment production technology
10/10/2012CN102718355A Breeding pollution discharge treatment system and treatment method thereof
10/10/2012CN102718354A Advanced treatment and reuse method for iron and steel integrated wastewater
10/10/2012CN102718353A System of and method for advanced treatment of refractory industrial wastewater
10/10/2012CN102718352A One-body domestic-sewage treatment system
10/10/2012CN102718351A Device and method for sewage desalting
10/10/2012CN102718350A Zero-emission reuse treatment method for electroplating cyanide-containing wastewater
10/10/2012CN102718349A Device and method for electrolytic treatment of acid organic wastewater with high salinity
10/10/2012CN102718348A Oily sewage treatment device
10/10/2012CN102718347A Method for treating multi-metal-contained wastewater in process of crushing and sorting waste circuit board
10/10/2012CN102718346A Method for utilizing active sludge and Fe2(SO4)3 to perform combined treatment on domestic sewage
10/10/2012CN102718345A Method for utilizing coke powder to deeply treat COD (Chemical Oxygen Demand) and chrominance of coking wastewater
10/10/2012CN102718344A Recycling treatment process of printing and dyeing wastewater
10/10/2012CN102718343A Polybasic acid anhydride and polyatomic alcohol based unsaturated polyester resin wastewater treatment method
10/10/2012CN102718342A Deep recycling system and technology for chrome sludge acid leachate
10/10/2012CN102718341A Centrifugal non-landing waste drilling fluid innocent treatment technology
10/10/2012CN102718340A Novel air flotation turntable filtering and purifying system
10/10/2012CN102718339A Novel ammonia nitrogen quick-reducing device
10/10/2012CN102718338A Cyanogen-containing waste water treatment system and cyanogen-containing waste water treatment method
10/10/2012CN102718337A Processing method for leatherworking waste water
10/10/2012CN102718336A Domestic sewage treatment device
10/10/2012CN102718335A Water outlet intelligent collecting and separating device
10/10/2012CN102328987B Ozone reaction system
10/10/2012CN102320705B Method for treating sewage containing high nutrients
10/10/2012CN102295389B Industrial waste water treating technology
10/10/2012CN102295368B Sequencing batch wastewater processing device and its working method
10/10/2012CN102285742B Method for wastewater treatment by utilizing KM biological contact oxidation process
10/10/2012CN102276109B Rural sewage pretreatment device
10/10/2012CN102267784B Integrated treatment device for urban sewage treatment
10/10/2012CN102267773B Process for treating and recycling high arsenic-containing copper smelting waste water
10/10/2012CN102241459B Method for reinforcing adsorption-biodegradation (AB) denitrification technology by use of heterotrophic nitrification-aerobic denitrification bacteria
10/10/2012CN102225817B Method for separating and recycling food processing wastewater rich in tannin and sodium chloride through nanofiltration membranes
10/10/2012CN102225816B Method for recovering secondary salts from desulfurization liquid and recycling desulfurization liquid
10/10/2012CN102198997B Treatment process method for wastewater from abscisic acid production
10/10/2012CN102190383B Method for removing and recovering water from olefin material flow prepared from oxygenated compounds
10/10/2012CN102180565B Method and device for enhanced biological denitrogenation of municipal sewage
10/10/2012CN102173543B Wind driven small sewage treatment device
10/10/2012CN102173519B Membrane integration technology based process for treating wastewater containing inorganic phosphorous
10/10/2012CN102167472B Combined type MBR (membrane bioreactor) sewage treating and recycling device for offshore platform
10/10/2012CN102167453B Method for controlling chlorine dioxide in desalting system based on ORP monitoring
10/10/2012CN102153221B Process for treating oil field produced water
10/10/2012CN102145958B Large water area phytal zone migratory bird perching and water purification composite system
10/10/2012CN102139994B Method for enhanced purification of water quality of standard-reaching tail water in town sewage plant
10/10/2012CN102139969B Emulsified oil waste water treatment system and process
10/10/2012CN102120676B Method for treating nitrogen and phosphorus in wastewater through the biological combination process of electrolytic oxidation and sequence batch reactor
10/10/2012CN102092887B Treatment system and method for industrial waste water with high concentration of salt
10/10/2012CN102070277B Coal gasification wastewater treatment process
10/10/2012CN102040317B System and method for taking and reusing water from riverway supplemented with recycling water
10/10/2012CN101973649B Continuous sewage treatment device for petroleum gas well
10/10/2012CN101941775B Recycle system and method for highly purifying and processing domestic wastewater
10/10/2012CN101924279B Building indoor space quality improvement system
10/10/2012CN101842323B Liquid-solid fluidized bed waste water treatment system for simultaneous carbon, nitrogen and phosphorus removal
10/10/2012CN101838073B Silicon steel alkali rinse purification method and device
10/10/2012CN101817618B Method for treating coking wastewater biologically
10/10/2012CN101519491B Method for making polycarbonate
10/10/2012CN101445305B Method for recycling and purifying livestock wastewater or high concentration wastewater
10/09/2012US8282817 Septic system
10/04/2012WO2012135150A2 Production of cyanobacterial or algal biomass using chitin as a nitrogen source
10/04/2012WO2012133664A1 Ultrapure water producing system and ultrapure water producing method
10/04/2012US20120249097 Adaptive inductive power supply
10/04/2012US20120247972 Process for reducing the concentration of hydrate inhibitors in water used for oil and gas production
10/04/2012DE102011006664A1 Water treatment device comprises a water inlet connected to a water line, a filter device, which is provided downstream of a swirling device to eliminate pollutants from the supplied water and a water outlet
10/04/2012CA2830178A1 Sustainable method and system for treating water bodies affected by bacteria and microalgae at low cost
10/04/2012CA2830175A1 Method and system for treating water used for industrial purposes
10/03/2012EP2505561A1 Purification device and method for advancedly treating printing and dyeing wastewater
10/03/2012CN202466779U Ecological retention pond
10/03/2012CN202466705U Sewage recovery treatment and reutilization system
10/03/2012CN202466677U Rainwater collecting reusing processing device and system thereof
10/03/2012CN202465463U Biological sewage treatment system
10/03/2012CN202465462U Integrated sewage treatment device for high-altitude areas
10/03/2012CN202465461U Symmetrical type opposite and three-dimensional circulating flow integrated oxidation ditch
10/03/2012CN202465460U Treatment system used for low-carbon source slightly polluted water source difficult to degrade
10/03/2012CN202465459U Improved treatment device adopting batch type circular delay aeration activated sludge method
10/03/2012CN202465458U Washing wastewater treatment and recovery complete device containing oil sludge ammonia nitrogen gas
10/03/2012CN202465457U Centralized processing system of sewage in rural areas
10/03/2012CN202465456U Integrative device for treating and utilizing small-town sewage in decentralized manner
10/03/2012CN202465455U Novel membrane concentrated water treatment device
10/03/2012CN202465454U Pool body structure for cassava alcohol wastewater aerobic treatment system
10/03/2012CN202465453U Novel recycled water reuse system for ecological modularization of domestic wastewater
10/03/2012CN202465452U Sewage treatment system
10/03/2012CN202465451U Landfill leachate treatment system
10/03/2012CN202465450U Treatment device of electroplating pretreatment waste water
10/03/2012CN202465449U Wool scouring and sewage processing system
10/03/2012CN202465448U A/A/O micro-aeration oxidation ditch sewage treatment device of magnetized biofilm process
1 ... 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 ... 415