| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 12/25/2013 | CN103466838A Processing method of rectifying tower condensate of wastewater containing dimethyl formamide |
| 12/25/2013 | CN103466837A Device and method for treating desulfurization wastewater of ships |
| 12/25/2013 | CN103466836A Method for controlling amount of alkali addition to water purifying device |
| 12/25/2013 | CN103466835A Integral clarification tank |
| 12/25/2013 | CN103466834A Treatment method for reducing ammonia nitrogen concentration of wastewater containing ammonium perchlorate |
| 12/25/2013 | CN103466833A Treatment method of beryllium-containing sewage |
| 12/25/2013 | CN103466832A Desulfurization method of waste water from papermaking factory |
| 12/25/2013 | CN103466831A Harmless resourceful treatment system of algae scum |
| 12/25/2013 | CN103466830A Method for recycling electrolytic manganese metal anode waste liquor |
| 12/25/2013 | CN103466829A Treatment method of high-concentration ammonia nitrogen waste water and treatment system of treatment method |
| 12/25/2013 | CN103466828A Separation method for water-soluble acid-alkali mixed dye |
| 12/25/2013 | CN103466827A Treatment system and method for filtering, circulating and reusing medium water for underground kilometer drilling rig |
| 12/25/2013 | CN103466826A Processing method for reducing turbidity in waste water |
| 12/25/2013 | CN103466825A Treatment method of high phosphorus wastewater |
| 12/25/2013 | CN103466824A Emergency treatment method for water plant to handle emergent manganese-polluted water source |
| 12/25/2013 | CN103466823A Non-waste-water RO direct-drinking machine |
| 12/25/2013 | CN103466822A Purifying and filtering element for preventing breeding of microorganisms |
| 12/25/2013 | CN103466821A Device for treating and recycling acid-containing wastewater of extraction raffinate in rare earth extraction process |
| 12/25/2013 | CN103466820A Wastewater treatment device for rare-earth preparation |
| 12/25/2013 | CN103466819A Ultrafiltration and powdered activated carbon adsorption combined purification device for removing trace organic matters from drinking water |
| 12/25/2013 | CN103466818A Ultrafiltration and powdered activated carbon adsorption combined purification method for removing trace organic matters from drinking water |
| 12/25/2013 | CN103466817A Tap water treatment system |
| 12/25/2013 | CN103466816A Separating purifier for recovering food wastes and preprocessing sewage and polluted oil before discharge |
| 12/25/2013 | CN103466815A Composite filter core of water purifier |
| 12/25/2013 | CN103466779A Sewage decoloration method |
| 12/25/2013 | CN103112993B Method for processing oilfield wastewater and fixing CO2 (carbon dioxide) by using microalgae |
| 12/25/2013 | CN103086542B Recycling process and system for wooden activated carbon industrial wastewater |
| 12/25/2013 | CN103011441B Method for deep treatment on cyanogens, fluorine and ammonia nitrogen-containing waste water |
| 12/25/2013 | CN102951769B Method for recycling saponification wastewater generated in process of producing epoxypropane by adopting caustic soda saponification method |
| 12/25/2013 | CN102951744B Oil-containing water-enriched scum dehydration treatment method |
| 12/25/2013 | CN102910768B Multi-stage runner type waste water treating device and waste water treating method |
| 12/25/2013 | CN102910764B Device and method for simultaneously treating marine waste gas and waste water |
| 12/25/2013 | CN102897948B Cleaning treatment technology for isopropyl chloride cyanuric acid production waste water |
| 12/25/2013 | CN102849871B STD type technology and system for recovering condensate water of coal moisture control |
| 12/25/2013 | CN102795726B Method and apparatus for treating chromium-containing wastewater by means of sintering flue gas |
| 12/25/2013 | CN102765837B Well drilling waste water flocculent precipitate desliming processing device and method for processing sewage |
| 12/25/2013 | CN102757144B Optical/electrical Fenton treating technology of PVA (Polyvinyl Alcohol) desizing wastewater |
| 12/25/2013 | CN102745854B Magnetic plate liquid purifying device |
| 12/25/2013 | CN102730862B Sewage treatment method in synthetic rubber production |
| 12/25/2013 | CN102701514B Method for improving treatment efficiency of sewage plant by utilizing bypass sludge activity enhancing technology |
| 12/25/2013 | CN102701486B Combined treatment method for shale gas fracturing flowback wastewater |
| 12/25/2013 | CN102690016B Treatment recycle method of sewage from oil refinery |
| 12/25/2013 | CN102659290B Method for advanced treatment of high-concentration chemi-mechanical pulp effluent by catalytic oxidation |
| 12/25/2013 | CN102642993B Alcohol fermentation wastewater treatment method |
| 12/25/2013 | CN102627360B Method for pretreatment on industrial wastewater by nascent state ferrous iron reduction |
| 12/25/2013 | CN102603099B Coupling process method for high-concentration arsenic acidic wastewater |
| 12/25/2013 | CN102586336B Two-stage conversion method for producing bio-methane |
| 12/25/2013 | CN102430272B Method for treating sandstone wastewater |
| 12/25/2013 | CN102372391B Method and system for removing phosphorous in high-calcium content sewage through combination of biological method and chemical method |
| 12/25/2013 | CA2800814A1 Method for treating waste water |
| 12/24/2013 | US8613855 Waste water treatment apparatus |
| 12/19/2013 | WO2013187979A1 Treatment using fixed film processes and ballasted settling |
| 12/19/2013 | US20130334134 Integrated selenium removal system for waste water |
| 12/19/2013 | US20130334133 Methods For Using Ozone To Enhance Anaerobic Digestion |
| 12/18/2013 | EP2673240A1 Sulfate removal from aqueous waste streams with recycle |
| 12/18/2013 | CN203347000U Rainwater garden system suitable for mountainous city runoff containing large amount of sand |
| 12/18/2013 | CN203346358U Coke oven gas purifying system for efficiently recovering heat source of coking plant |
| 12/18/2013 | CN203346236U Small integrated treatment device for painting wastewater |
| 12/18/2013 | CN203346235U Sewage treatment equipment |
| 12/18/2013 | CN203346234U Sewage treatment system |
| 12/18/2013 | CN203346233U Sewage treatment device with viewing sewage cleaning ports |
| 12/18/2013 | CN203346232U Enhanced-type fast-leakage wastewater treating system |
| 12/18/2013 | CN203346231U Sewage treatment device capable of disinfecting yielding water |
| 12/18/2013 | CN203346230U Landfill leachate treatment device |
| 12/18/2013 | CN203346229U System for recovering sewage from Chinese medicine factories to prepare distilled water |
| 12/18/2013 | CN203346228U Domestic sewage treatment artificial wetland |
| 12/18/2013 | CN203346227U Partial nitrification and ammoxidation combination reactor |
| 12/18/2013 | CN203346226U Recycled water reusing treatment system |
| 12/18/2013 | CN203346225U Wastewater aerobiotic surface aeration pretreatment combination device |
| 12/18/2013 | CN203346224U Novel municipal sewage biofilm treatment system |
| 12/18/2013 | CN203346223U Leather wastewater recycling device |
| 12/18/2013 | CN203346222U Deep treatment station for domestic sewage of urban residential area |
| 12/18/2013 | CN203346221U Automatic sewage treatment device |
| 12/18/2013 | CN203346220U Automatic rainwater, snow and ice purifying device |
| 12/18/2013 | CN203346219U Ship ballast water purifying device |
| 12/18/2013 | CN203346218U Mineral water purification equipment |
| 12/18/2013 | CN203346217U Medical pure water treatment system |
| 12/18/2013 | CN203346216U Drinking water disinfecting and filtering machine |
| 12/18/2013 | CN203346215U Domestic wastewater catalytic oxidation deep treatment device |
| 12/18/2013 | CN203346214U Surface sewage backflow device in sewage treatment |
| 12/18/2013 | CN203346213U Integrated microfiltration hardness removal equipment |
| 12/18/2013 | CN203346212U Drinking water filter element and active carbon filtering unit thereof |
| 12/18/2013 | CN203346211U Condensed water recycling and reusing device |
| 12/18/2013 | CN203346210U High-density reaction sedimentation tank |
| 12/18/2013 | CN203346209U Device for heavy metal removal, nitrogen removal and organic phase recovery of rare earth and tungsten and molybdenum extraction waste water |
| 12/18/2013 | CN203346208U System for comprehensively recycling high-concentration organic sewage |
| 12/18/2013 | CN203346207U Device for purifying and recycling high-hardness water treated by carbon dioxide mineralization technology |
| 12/18/2013 | CN203346206U High-hardness water purifying device |
| 12/18/2013 | CN203346205U Rare-earth wastewater reclamation comprehensive treatment device |
| 12/18/2013 | CN203346204U Circulating cooling two-stage clarification and softening system for waste water |
| 12/18/2013 | CN203346203U Condensate polishing system |
| 12/18/2013 | CN203346202U Heavy metal removing water treatment system |
| 12/18/2013 | CN203346201U Industrial brine pretreatment system |
| 12/18/2013 | CN203346200U Drinking water treatment equipment |
| 12/18/2013 | CN203346199U Efficient mixing and precipitation integrated water purifier |
| 12/18/2013 | CN203346198U Novel integrated water purifying device |
| 12/18/2013 | CN203346197U Integrated water purification device |
| 12/18/2013 | CN203346196U Chemical oxidation-nanofiltration membrane integration water-treatment device for removing organic tin and inorganic tin |
| 12/18/2013 | CN203346195U Equipment for treating rinsing waste water produced during activated carbon preparation with phosphoric acid method |
| 12/18/2013 | CN203346194U Oil separator |