| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 06/12/2013 | CN103145271A Mine sewage treatment process for water purification station of thermal power plant |
| 06/12/2013 | CN103145270A Submerged flow type sewage purification device and sewage purification method |
| 06/12/2013 | CN103145269A Purification treatment method for oily grinding wastewater in bearing production |
| 06/12/2013 | CN103145268A Plant water conservation and usage system in semiconductor industry |
| 06/12/2013 | CN103145267A Method for recovering copper sulfide and ferric hydroxide in auricupride acid wastewater through sulfidization method |
| 06/12/2013 | CN103145266A Method for treating coking wastewater by using ozone under catalysis of activated carbon |
| 06/12/2013 | CN103145265A Wall-hanging open-door type direct water dispenser |
| 06/12/2013 | CN103145264A Purifying treatment and recycling process for high-salt-content reclaimed water |
| 06/12/2013 | CN103145263A Method for removing trace manganese in aqueous solution |
| 06/12/2013 | CN103145262A Method and system of sewage treatment and resource recovery |
| 06/12/2013 | CN103145261A Oil-water separating device at cabin bottom for ship |
| 06/12/2013 | CN103145245A Membrane biological reactor |
| 06/12/2013 | CN103145219A Method and device for recovering carbon source in urban sewage |
| 06/12/2013 | CN103145214A Photochemical wastewater degradation reactor expansion method compatible with fine intercept of catalyst as well |
| 06/12/2013 | CN102786183B Method for processing garbage leachate |
| 06/12/2013 | CN102674634B Treatment process of wastewater in coal chemical industry |
| 06/12/2013 | CN102627372B Method for treating vanadium pentoxide wastewater and circularly utilizing resources |
| 06/12/2013 | CN102616980B Treatment method of chromium-containing high concentration organic wastewater |
| 06/12/2013 | CN102616979B Treatment method for surface treatment liquid wastewater of metal processing |
| 06/12/2013 | CN102603125B Automatic medicine adding control method and device for chemically-assisted dephosphorization in sewage treatment |
| 06/12/2013 | CN102603124B Two-phase two-period anaerobic organism reactor for processing wastewater |
| 06/12/2013 | CN102583856B Non-depressurization sealed reinjection treatment method for gas field sewage |
| 06/12/2013 | CN102557299B Recovery method of copper-nickel heavy metals in electroplated mixed-flow waste water |
| 06/12/2013 | CN102557222B Method for removing trace arsenic from aqueous solution |
| 06/12/2013 | CN102531244B Pretreatment method of landfill leachate of waste incineration power plant |
| 06/12/2013 | CN102531222B Treatment method for vanadium precipitating waste water |
| 06/12/2013 | CN102515442B Treatment method for recycling complex waste water in coal chemical industry |
| 06/12/2013 | CN102515420B Treatment method for wastewater in adipic acid production |
| 06/12/2013 | CN102513093B High-concentration salt-containing wastewater liquid phase oxidation catalyst, preparation method thereof and treatment method |
| 06/12/2013 | CN102503037B Hydroponic plant and filter dam combined eutrophication water body ex-situ remediation system |
| 06/12/2013 | CN102491595B Process for treating sewage from production of cyanoacrylate adhesive |
| 06/12/2013 | CN102464424B Coagulation-filtration synergistic biological treatment method of carbide slag wastewater |
| 06/12/2013 | CN102417247B Two-stage sludge reflux enhanced coagulation technology |
| 06/12/2013 | CN102391910B System and method for recycling waste emulsified cutting fluid |
| 06/12/2013 | CN102390860B Environmentally-friendly treatment method and device for organosilicon slurry |
| 06/12/2013 | CN102381771B In-situ repair reactor for polluted underground water |
| 06/12/2013 | CN102372456B Method for preparing naphthalene series additive from low-acidity process waste water |
| 06/12/2013 | CN102372403B Treatment process of oil-containing sewage in low-permeability oil field |
| 06/12/2013 | CN102372397B Biological sewage treatment device |
| 06/12/2013 | CN102372386B Method for sterilizing oil field sewage by cooperating electrochemical oxidation with ultraviolet and ultrasonic technology |
| 06/12/2013 | CN102372377B Method for advanced treatment of mercury-containing wastewater |
| 06/12/2013 | CN102351368B Loading flocculation pretreatment method of antibiotic fermentation wastewater |
| 06/12/2013 | CN102351359B Device and method for radioactive waste water concentration treatment |
| 06/12/2013 | CN102344227B Hairwork waste water cyclic utilization device and treatment method thereof |
| 06/12/2013 | CN102295369B Device and method for removing hardness in drinking water |
| 06/12/2013 | CN102249433B Method for removing oil organic matter from aqueous solution of nickel-containing compound |
| 06/12/2013 | CN102206015B Sewage treatment method and device |
| 06/12/2013 | CN102120661B Equipment and method for treating ship domestic sewage through electrolytic process |
| 06/12/2013 | CN102107988B Phenol-amine wastewater treatment and recycling method and device |
| 06/12/2013 | CN102101733B Method for treating electroplating comprehensive wastewater by scrap iron electrolysis and electrochemical technology |
| 06/12/2013 | CN102093316B Method for separating out and purifying epoxypropane and methyl alcohol |
| 06/12/2013 | CN102092880B Process for freezing and denitriding primary brine with membrane method in polyvinyl chloride production |
| 06/12/2013 | CN101815678B Process for mixed chemical/electrochemical treatment of a liquid medium loaded with nitrates, device for treating such a liquid medium and applications |
| 06/11/2013 | CA2703065C Liquid-solid fluidized bed waste water treatment system for simultaneous carbon, nitrogen and phosphorus removal |
| 06/06/2013 | WO2013078639A1 Coking wastewater treatment |
| 06/06/2013 | WO2013078505A1 A process and plant for treating water |
| 06/06/2013 | WO2013027125A3 Apparatus and methods for sequential treatments of process flows |
| 06/06/2013 | DE102011012805B4 Aufbereitung von Rohsolen aus Meerwasserentsalzungsanlagen Treatment of Rohsolen from seawater desalination plants |
| 06/06/2013 | DE102008050913B4 Apparat zur Desinfektion von Stadt-, Brunnen- und Rohwasser aus Reservoirs zur Aufbereitung und weiteren Nutzung als Trinkwasser Apparatus for disinfection of municipal, well and raw water from reservoirs for treatment and further use as drinking water |
| 06/06/2013 | CA2857053A1 A process and plant for treating water |
| 06/06/2013 | CA2856588A1 Coking wastewater treatment |
| 06/05/2013 | EP2598448A2 Selenium removal using chemical oxidation and biological reduction |
| 06/05/2013 | CN202969507U Household reclaimed water toilet flushing system |
| 06/05/2013 | CN202969506U Household water-saving and energy-saving flushing device |
| 06/05/2013 | CN202968330U Sewage treatment integrated unit |
| 06/05/2013 | CN202968329U Rural domestic wastewater treatment system |
| 06/05/2013 | CN202968328U High-low concentration sewage treatment system |
| 06/05/2013 | CN202968327U Water treatment linkage experiment device |
| 06/05/2013 | CN202968326U Sewage treatment device |
| 06/05/2013 | CN202968325U Palm oil wastewater treatment device |
| 06/05/2013 | CN202968324U Integrated unattended recycled water treatment equipment |
| 06/05/2013 | CN202968323U Biological-ceramsite coupled photocatalysis water purifier |
| 06/05/2013 | CN202968322U Floating-filtering integrated polluted water deep-treatment device |
| 06/05/2013 | CN202968321U Sewage treatment system for large-scale duck breeding plant |
| 06/05/2013 | CN202968320U Biological active carbon treatment equipment for electroplating wastewater COD (Chemical Oxygen Demand) |
| 06/05/2013 | CN202968319U Multistage-filtering membrane bioreactor |
| 06/05/2013 | CN202968318U Household wastewater treatment system |
| 06/05/2013 | CN202968317U Composite biological membrane autotrophic nitrogen removal device |
| 06/05/2013 | CN202968316U Excrement innocent treatment system |
| 06/05/2013 | CN202968315U Water quality pretreatment facility |
| 06/05/2013 | CN202968314U Sewage treatment device for expressway auxiliary area |
| 06/05/2013 | CN202968313U Complete equipment for waste water treatment in coal chemical industry |
| 06/05/2013 | CN202968312U Purifying device for high-turbidity seawater |
| 06/05/2013 | CN202968311U Water treatment system |
| 06/05/2013 | CN202968310U Combined type artificial wetland system for municipal wastewater treatment |
| 06/05/2013 | CN202968309U Farmland radial-flow discharge-port purification device |
| 06/05/2013 | CN202968308U Arc-current assisted sludge reduction and treatment system and device for municipal wastewater treatment |
| 06/05/2013 | CN202968307U Modular biological rotating disk wastewater treatment system |
| 06/05/2013 | CN202968306U High-speed magnetic-separation sewage disposer |
| 06/05/2013 | CN202968305U High-speed magnetic-separation sewage treatment machine |
| 06/05/2013 | CN202968304U Portable drinking water generator |
| 06/05/2013 | CN202968303U Energy-mineral-stone water purification machine |
| 06/05/2013 | CN202968302U Portable outdoor drinking fountain |
| 06/05/2013 | CN202968301U Sewage purifier |
| 06/05/2013 | CN202968300U Environment-friendly water purification device |
| 06/05/2013 | CN202968299U Ultraviolet sterilization straight water dispenser |
| 06/05/2013 | CN202968298U Medicinal purified water treating equipment |
| 06/05/2013 | CN202968297U Multiphase water treater |
| 06/05/2013 | CN202968296U Iron-carbon micro-electrolysis reactor |
| 06/05/2013 | CN202968295U High-concentration phosphorus-containing wastewater treatment device |