Patents
Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429)
09/2012
09/05/2012CN102107997B Method for treating leachate of domestic waste incineration plants
09/05/2012CN102107963B Method for treating acid-washing wastewater and metallic ions in iron and steel industry
09/05/2012CN102101741B Treatment device and treatment process method for leachate from waste incineration plants
09/05/2012CN102092902B Treatment and reclamation process of production waste water of tert-amyl peroxypivalate
09/05/2012CN102092901B Bio-augmentation treatment system for coking wastewater
09/05/2012CN102092899B System and method for removing natural organic substances and odor-induced substances in micro polluted water
09/05/2012CN102092890B Method for treating waste water in ABS (Acrylonitrile Butadiene Styrene) coagulation and drying procedure
09/05/2012CN102092876B Treatment method of waste water discharged by silicon carbide micro powder production device
09/05/2012CN102050553B Method and device for concentration of biogas and standard emission of clear liquid
09/05/2012CN102050529B Immersed water treatment device of inner circulating membrane coagulation reactor
09/05/2012CN102020395B Decentralized sewage treatment method
09/05/2012CN102020394B Sewage treatment system
09/05/2012CN102020379B Incoming water pretreatment method of nano-filter membrane
09/05/2012CN102020377B Method for treating collophanite positive and reverse flotation beneficiation wastewater
09/05/2012CN102010100B Technology and device for advanced treatment flow of industrially comprehensive wastewater
09/05/2012CN102010088B Pressure-bearing integral metallurgy sewage purifying treatment device
09/05/2012CN102010081B Method for recycling thinner
09/05/2012CN102001789B Process for treating coal chemical waste water
09/05/2012CN102001785B Compound biological film integrated reactor for treatment of domestic sewage and application method
09/05/2012CN102001771B Method for treating calcium hydrogen phosphate wastewater
09/05/2012CN101948216B Domestic sewage constructed wetland system taking steel slag-limestone as matrix and application thereof
09/05/2012CN101948205B Industrial wastewater recycling processing system
09/05/2012CN101935126B Combined treatment method for electro-deposition and membrane separation of zinc-containing heavy metal waste water
09/05/2012CN101908634B Split type membraneless microbiological fuel cell
09/05/2012CN101898198B Method for remedying oil pollution by unitedly using air shatter crack and microorganism and device thereof
09/05/2012CN101891337B Treating system and method for treating surface water worse than Grade V into drinking water
09/05/2012CN101891330B Waste water treatment system and method for power plant
09/05/2012CN101863633B Method for preparing concrete admixture by utilizing waste water discharged from production of cellulose ethers
09/05/2012CN101857341B Method for performing superchlorination to water body of soft shelled turtle culture pond
09/05/2012CN101851044B Apparatus and process for biological wastewater treatment
09/05/2012CN101792240B Recovery processing system for dejection and sewage of train
09/05/2012CN101792233B Energy-saving consumption-reducing short-range nitration dephosphorizing coupling technique with synchronous denitrification and device thereof
09/05/2012CN101786753B Advanced waste water treatment method
09/05/2012CN101696064B Process for purifying high fluorine and high sulfuric acid brine
09/05/2012CN101660764B Combined combustion method for fuel oil emulsification and combustion supporting
09/05/2012CN101503265B Constructed wetland processing and comprehensive utilization technique for farm household sewage water and rainwater
09/05/2012CN101481184B Novel membrane processing and salt recycling method for hot pickled mustard tube cleaning wastewater
08/2012
08/30/2012WO2012113962A1 Device and method for purifying water
08/30/2012US20120217201 Method for enhancing biological water treatment
08/30/2012DE102011012137A1 Treating bathwater in a tank, comprises circulating bath water in domestic water circuit, disinfecting and preferably chlorinating, adding hydrogen peroxide to the circulating water bath and removing hydrogen peroxide by UV-light
08/30/2012CA2827921A1 Selective salt recovery from mixed salt brine
08/29/2012EP2491320A1 Process cooling system and method using seawater
08/29/2012DE202012007498U1 Kalkschutzgranulat integriert in einem zylindrischen Filter Kalkschutzgranulat integrated into a cylindrical filter
08/29/2012CN202400935U Flow-guiding aeration biofilter sewage treating system
08/29/2012CN202400934U Car washing circulating water equipment
08/29/2012CN202400933U Antiosmosis chemical washing device for high-concentration organic matter waste water
08/29/2012CN202400932U Oil-containing wastewater treatment device
08/29/2012CN202400931U Solar domestic sewage anaerobic treatment device
08/29/2012CN202400930U Low-sludge-yield printing and dyeing wastewater treatment system
08/29/2012CN202400929U Sewage treatment device
08/29/2012CN202400928U Energy-saving domestic sewage treatment and recycling device
08/29/2012CN202400927U Sodium removal treatment device for high sodium salt wastewater
08/29/2012CN202400926U Sewage purifying device
08/29/2012CN202400925U Household three-level water treatment equipment
08/29/2012CN202400924U Automatic drinking water making machine
08/29/2012CN202400923U Ultrasonic coalescence air floating oil removal device
08/29/2012CN202400922U Circulating photolytic purification system
08/29/2012CN202400921U Reclaimed water purifying device for use in environmental protection
08/29/2012CN202400920U Ammonium nitrate wastewater treatment system
08/29/2012CN202400919U Reusing and treating system for desalinizing high-concentration seawater through seawater membrane filtering
08/29/2012CN202400918U Municipal sewage filter
08/29/2012CN202400917U Purifying device for car washing circulating water
08/29/2012CN202400916U Stainless steel hydraulic automatic control integrated water purifier
08/29/2012CN202400915U Secondary brine refining system in ionic membrane caustic soda production
08/29/2012CN202400914U Heating device of raw desalted water
08/29/2012CN202400913U Water purification filtering core and water purifier
08/29/2012CN202400912U Water purifier provided with water purification filter element
08/29/2012CN202400888U Device for treating sewage through advanced oxidation
08/29/2012CN202400878U Ultraviolet disinfecting device and water purifying system thereof
08/29/2012CN202398192U Full-automatic natural dechlorination water purifier
08/29/2012CN1424984B Process and system for treatment of wastes streams containing water-soluble polymers
08/29/2012CN102649683A Method for producing methanol by combined gasification of lurgi gasification wastewater through treatment of coal water slurry furnace
08/29/2012CN102649618A Method for treating sewage sludge by wood chips
08/29/2012CN102649616A Comprehensive treatment method for garbage leachate
08/29/2012CN102649615A Hidden sewage treatment method and equipment
08/29/2012CN102649614A Water quality purification device for rainwater collection pit water with biological slow filter basin
08/29/2012CN102649613A Recycling processing technology for legumelin wastewater
08/29/2012CN102649612A Ultrapure water polishing machine and treatment method thereof
08/29/2012CN102649611A Treatment device for electroplating wastewater and application thereof
08/29/2012CN102649610A Method for utilizing waste water during production of stevioside
08/29/2012CN102649609A Coagulation filtering method
08/29/2012CN102649608A Process method for treating mine acidic waste water
08/29/2012CN102649607A Classification and separation method for impurities of ballast water
08/29/2012CN102649606A Water treatment method and device for on-line quickly purifying oil-containing industrial circulating cooling water
08/29/2012CN102311195B Recycling utilization and processing method for wastewater generated in sebacic acid production process
08/29/2012CN102260001B Process for treating and recycling rare-earth wastewater containing magnesium sulfate, ammonium sulfate and sulfuric acid
08/29/2012CN102249478B Deep nitrogen and phosphorus removal process for surface water body
08/29/2012CN102249450B Method for removing trace cadmium from aqueous solution
08/29/2012CN102180558B Process for treating high-concentration industrial organic wastewater by composite advanced oxidation method
08/29/2012CN102153234B Serial drop water composite wetland system for treating non-point pollution
08/29/2012CN102120673B Novel two-stage multiple current circulation anaerobic reaction incorporate device and method
08/29/2012CN102120665B Method for purifying pentachlorophenol in water through photocatalysis
08/29/2012CN102120652B Coal-based adsorption sewage treatment method and adsorption system
08/29/2012CN102101744B Biogas slurry treatment system for use in biogas project
08/29/2012CN102101739B Method for treating ABS (acrylonitrile-butadiene-styrenecopolymer) resin production wastewater
08/29/2012CN102092885B Water purification method for landscape water
08/29/2012CN102060405B Method for treating membrane treatment concentrate of household garbage leachate
08/29/2012CN102060353B Water treatment device capable of cleaning filter membrane quickly
08/29/2012CN102030436B Method for treating sulfite-containing wastewater
08/29/2012CN102010085B Method for treating high-concentration organic wastewater by P450 bionic normal-temperature normal-pressure catalytic oxidation