| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 10/31/2012 | CN102229451B Sewage treatment process for high-turbidity hematite mineral processing |
| 10/31/2012 | CN102134140B Fore-reservoir system driven by natural energy in lake outlet regions |
| 10/31/2012 | CN102120660B Chromium-ion containing wastewater treatment process and device thereof |
| 10/31/2012 | CN102086071B New reinjection treatment method of polysulfonate drilling wastewater |
| 10/31/2012 | CN101967032B Vertical oxygen-enriched vortex domestic sewage device and method |
| 10/31/2012 | CN101948209B Multi-resource combined physical and chemical water treatment device |
| 10/31/2012 | CN101891319B Alkaline printing and dyeing wastewater materialization pretreatment method and system |
| 10/31/2012 | CN101880096B Portable car-mounted manual emergency convenient water dispenser |
| 10/31/2012 | CN101848869B Method for conditioning waste solution that arises during the wet-chemical cleaning of conventional or nuclear plants, said solution containing organic substances and metals in ionic form |
| 10/31/2012 | CN101838080B Magnetic seed type continuous sewage treatment method and device |
| 10/31/2012 | CN101544449B Application of carbon-fiber biofilm carrier in wastewater treatment |
| 10/31/2012 | CN101348308B Novel town sewerage mixed treatment process |
| 10/30/2012 | US8301080 Adaptive inductive power supply with communication |
| 10/30/2012 | US8301079 Adaptive inductive power supply with communication |
| 10/26/2012 | WO2012144982A1 Grey water dividing and treatment |
| 10/26/2012 | WO2012143326A1 Method and device for cleaning wastewater |
| 10/26/2012 | CA2833644A1 Method and device for cleaning wastewater |
| 10/26/2012 | CA2833601A1 Treatment of wastewater |
| 10/25/2012 | US20120267322 Method and system for plasma treatment of a liquid |
| 10/25/2012 | US20120267316 Apparatus and Method for Purifying and Sterilizing Water Using Nano Catalytic Microelectrolysis |
| 10/25/2012 | DE102011118752A1 Drinking water production, comprises carrying out waste water purification by zeolite filtration, removing heavy metals from raw water with a zeolite based cation exchanger using natural adsorbent, and removing nitrate and nitrite |
| 10/25/2012 | DE102011018190A1 Verfahren und Vorrichtung zur Reinigung von Abwässern Method and apparatus for purification of waste water |
| 10/24/2012 | EP2514723A1 Redundant ultrafiltration devices |
| 10/24/2012 | EP2512993A1 Method for recycling exhaust gases comprising nox from wastewater streams from nitrating plants |
| 10/24/2012 | CN202499890U Tin-stripping waste liquid recycling equipment |
| 10/24/2012 | CN202499792U Device for treating toilet excrement by complete biological method |
| 10/24/2012 | CN202499791U Wastewater treatment system for producing HIV (human immunodeficiency virus) preventing and treating medicament |
| 10/24/2012 | CN202499790U Landscape water body purifying system |
| 10/24/2012 | CN202499789U Recycling device for polyvinyl chloride (PVC) mother liquid waste water |
| 10/24/2012 | CN202499788U Ecological sewage treatment system equipment |
| 10/24/2012 | CN202499787U Cocoon wastewater treatment device |
| 10/24/2012 | CN202499786U Floating bed filter screen type biological grid |
| 10/24/2012 | CN202499785U Nitrochlorobenzene ammonolysis wastewater treatment system |
| 10/24/2012 | CN202499784U Portable water purification device |
| 10/24/2012 | CN202499783U Purified water manufacturing device and automatic emulsion making system |
| 10/24/2012 | CN202499782U Sodium-hypochlorite wastewater pretreatment system |
| 10/24/2012 | CN202499781U Water purification drinking water device with steam sterilization |
| 10/24/2012 | CN202499780U Device for electrically cracking, catalyzing, oxidizing and electro-coagulating petroleum drilling wastewater |
| 10/24/2012 | CN202499779U Nickel-containing washing water treatment equipment |
| 10/24/2012 | CN202499778U Electrolytic-catalyst wastewater treatment system implemented by taking activated carbon as carrier |
| 10/24/2012 | CN202499777U High-quality mixed drained water reuse treatment device for buildings |
| 10/24/2012 | CN202499776U Papermaking sewage pretreatment system |
| 10/24/2012 | CN202499775U Car washing wastewater recycling system |
| 10/24/2012 | CN202499774U Vehicle-mounted wild emergency water purification treatment device |
| 10/24/2012 | CN202499773U Inferior heavy oil sewage purifying and biochemical degradation coupling device |
| 10/24/2012 | CN202499772U Household water purifying machine system |
| 10/24/2012 | CN202499771U Waste water recycling device of ampoule washing machine |
| 10/24/2012 | CN202499770U Water recovery system |
| 10/24/2012 | CN202499769U Agricultural reverse osmosis dual water supply machine |
| 10/24/2012 | CN202499768U Household water-saving type water purifying device |
| 10/24/2012 | CN202499767U Passive water purifying device |
| 10/24/2012 | CN202496993U Health-care water assistant device |
| 10/24/2012 | CN202496635U Portable multi-layer filtering direct-drinking water bag |
| 10/24/2012 | CN202496634U Portable filter-element-type filtering direct drinking water bag |
| 10/24/2012 | CN102749894A Mine water treatment electrical control device for underground coal mines and mine water treatment system |
| 10/24/2012 | CN102746991A Method for carrying out heterotrophic culture on chlorella with acid-producing wastewater |
| 10/24/2012 | CN102746037A Garbage and sewage integrated purification and fertilizer production system |
| 10/24/2012 | CN102745870A Factory aquaculture water circulating device |
| 10/24/2012 | CN102745869A Composite constructed wetland system for sewage treatment and ecological restoration |
| 10/24/2012 | CN102745868A Method for removing carbon, nitrogen and sulfur in waste water |
| 10/24/2012 | CN102745867A Biochemical treatment method of deep-well polymer-sulfonated category slurry well drilling waste water |
| 10/24/2012 | CN102745866A Non-hazardous recycling treatment method for excrement |
| 10/24/2012 | CN102745865A Deep well aeration sewage treatment method |
| 10/24/2012 | CN102745864A Distributed sewage biological treatment process in rural area |
| 10/24/2012 | CN102745863A High efficiency fluidization upward flow multilayer composite filter material biological filter tank coupled with ozonation and water treatment method thereof |
| 10/24/2012 | CN102745862A Sewage treatment method |
| 10/24/2012 | CN102745861A Mobile water plant water treatment process and mobile water treatment system |
| 10/24/2012 | CN102745860A Assembled device for advanced treatment of pharmaceutical wastewater |
| 10/24/2012 | CN102745859A Farmhouse drinking water purifying system |
| 10/24/2012 | CN102745858A Sewage processing method for mud-water separation and device thereof |
| 10/24/2012 | CN102745857A Ecological building water treatment system and method |
| 10/24/2012 | CN102745856A Method for treating peroxide-containing wastewater with industrial waste gas |
| 10/24/2012 | CN102745855A Method and device for treating domestic sewage from villages and towns |
| 10/24/2012 | CN102745854A Magnetic plate liquid purifying device |
| 10/24/2012 | CN102745853A Preparation method and preparation system for filled drinking water |
| 10/24/2012 | CN102745852A Brine-desalination method |
| 10/24/2012 | CN102745851A Device and method for reinforcing crystallization and dephosphorization of novel crystal seeds on basis of ultrasonic technology |
| 10/24/2012 | CN102745850A Method for maintaining internal key components of microwave photocatalytic wastewater-degrading processing device |
| 10/24/2012 | CN102745849A Waste water degradation microwave photocatalytic device capable of comprehensively protecting membrane separation assembly |
| 10/24/2012 | CN102745848A Microwave photocatalytic degradation reaction equipment |
| 10/24/2012 | CN102745847A Reusing device of high frequency circuit board electroplating wastewater chemical treatment water |
| 10/24/2012 | CN102745846A Portable separated-type cleaning device |
| 10/24/2012 | CN102745845A Water circulation recovery system for liquid crystal panel manufacture |
| 10/24/2012 | CN102745844A Treatment device for sewage containing high concentration formaldehyde |
| 10/24/2012 | CN102745843A System and method for treating industrial circulating cooling water |
| 10/24/2012 | CN102745842A Microelectrolysis acid-base biological pre-treatment technology |
| 10/24/2012 | CN102745841A Novel brown algae chemical waste calcium water recycling process |
| 10/24/2012 | CN102745840A Method for recycling diosgenin saponin acidolysis waste acid |
| 10/24/2012 | CN102745839A Treatment method for removing ammonia nitrogen in waste water |
| 10/24/2012 | CN102745838A Advanced treatment method and device for glass fibre production wastewater |
| 10/24/2012 | CN102745837A Method for treating and recycling glass thinning and etching waste liquor |
| 10/24/2012 | CN102745836A Processing method of orange-can production wastewater |
| 10/24/2012 | CN102745835A Bypass system of condensed water precision processing system of thermal power plant and control method thereof |
| 10/24/2012 | CN102745834A Household reclaimed water treatment method and reutilization apparatus |
| 10/24/2012 | CN102745833A Technology design for treating pulping waste water of chemical mechanical straw pulp and waste paper pulp |
| 10/24/2012 | CN102745832A Method for treating town sewage into water for ecological landscape |
| 10/24/2012 | CN102745831A Treatment method of high concentration wastewater containing cyanogen and organic nitrile |
| 10/24/2012 | CN102745830A Movable treatment assembly for water generated from coalbed gas |
| 10/24/2012 | CN102745829A Wastewater reuse and zero release pretreatment system and method |
| 10/24/2012 | CN102745828A Device and method for preparing slurry liquid by utilizing seawater |