| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 03/06/2013 | CN202761056U Electric heating device and water purifier including the same |
| 03/06/2013 | CN202760481U Kettle |
| 03/06/2013 | CN102952747A Carbon fiber microalgae cultivating system using wastewater resources |
| 03/06/2013 | CN102951781A System for deodorizing sewage and organic wastewater using concentration-cultured sludge |
| 03/06/2013 | CN102951775A Integral sewage treatment method and device thereof |
| 03/06/2013 | CN102951774A Water quality pre-treating facility |
| 03/06/2013 | CN102951773A Technique for treating beer waste water |
| 03/06/2013 | CN102951772A Technique for treating restaurant waste water |
| 03/06/2013 | CN102951771A Floating type biofilter for cultured pond |
| 03/06/2013 | CN102951770A System and method for treating domestic sewage |
| 03/06/2013 | CN102951769A Method for recycling saponification wastewater generated in process of producing epoxypropane by adopting caustic soda saponification method |
| 03/06/2013 | CN102951768A Desalinization system and desalinization method |
| 03/06/2013 | CN102951767A Waste water treatment apparatus |
| 03/06/2013 | CN102951766A Process for treating chemical wastewater by combination of membrane biological reactor (MBR), and ultrafiltration (UF) and reverse osmosis (RO) systems |
| 03/06/2013 | CN102951765A Process for treating landfill penetrating fluid by chemical precipitation and biological denitrification |
| 03/06/2013 | CN102951764A Process for treating high-saline high-concentration chemical wastewater by double membrane method |
| 03/06/2013 | CN102951763A Method for utilizing pre-depositing magnetic separation combined technology to treat municipal wastewater |
| 03/06/2013 | CN102951762A Method and system for preventing scales and improving recycling water quality of saliferous and oily wastewater thermal desalination |
| 03/06/2013 | CN102951761A Method for recovering waste photoresist stripper |
| 03/06/2013 | CN102951760A Microwave water purifier |
| 03/06/2013 | CN102951759A Method for treating highly-difficult-to-treat industrial wastewater through catalytic oxidation and micro-electrolysis |
| 03/06/2013 | CN102951758A Method for removing manganese in sewage |
| 03/06/2013 | CN102951757A Method for separating and extracting raw material metal salt from wastewater in production of copper-based catalyst |
| 03/06/2013 | CN102951756A Method for treating alkaline printing and dyeing wastewater by utilizing waste acid |
| 03/06/2013 | CN102951755A Processing method and processing equipment of rear earth wastewater |
| 03/06/2013 | CN102951754A Method for removing PFOS (Perfluorooctane sulfonate)-based compound from drinking water |
| 03/06/2013 | CN102951753A Agent and method for reducing COD (chemical oxygen demand) of phenolic wastewater |
| 03/06/2013 | CN102951752A Filter-pressing action-based acid mine drainage treatment system and treatment method |
| 03/06/2013 | CN102951751A Reagent and method for high-efficiency decrease of COD (Chemical Oxygen Demand) of phenolic wastewater |
| 03/06/2013 | CN102951750A Deionizing machine and RO (reverse osmosis) combined pure water preparation process method |
| 03/06/2013 | CN102951749A Method and device for removing heavy metals in industrial wastewater by nanoscale zero-valent iron-multilevel reversed filter type system |
| 03/06/2013 | CN102951748A Water circulation system for embossing machine |
| 03/06/2013 | CN102951747A Conversion of seawater to drinking water at room temperature |
| 03/06/2013 | CN102951746A Pretreatment method of vinyl chloride monomer industrial wastewater |
| 03/06/2013 | CN102951745A Landfill leachate treatment process based on novel ammonia nitrogen removal technology |
| 03/06/2013 | CN102951744A Oil-containing water-enriched scum dehydration treatment method |
| 03/06/2013 | CN102951743A Comprehensive reutilization system of heating boiler wastewater |
| 03/06/2013 | CN102951742A Method for extracting salts from tannin extract coking desulfurization waste liquor |
| 03/06/2013 | CN102951741A Landfill leachate deep processing technology and special equipment |
| 03/06/2013 | CN102951704A Reverse osmosis seawater desalination process and device thereof |
| 03/06/2013 | CN102951700A Oily sewage treatment all-in-one machine |
| 03/06/2013 | CN102949866A Oil removal method for petrochemical emulsified process water |
| 03/06/2013 | CN102948830A Method for recycling water in laver processing |
| 03/06/2013 | CN102531293B Centralized treatment system for sewage in rural area |
| 03/06/2013 | CN102408174B Wastewater treatment method for producing sodium formaldehyde sulfoxylate |
| 03/06/2013 | CN102311191B Method for pre-degrading high-concentration oil refining organic wastewater by synergism of sulfuric acid free radical and anodic oxidation |
| 03/06/2013 | CN102260017B Method for effectively removing ammonia nitrogen from polluted water body |
| 03/06/2013 | CN102249486B Electrochemical-biological method combination device for treating printing and dyeing wastewater and wastewater treating method |
| 03/06/2013 | CN102139988B Production method for plant enzyme healthy water and equipment thereof |
| 03/06/2013 | CN102092867B Recycling method and device of gas tower section wastewater of oil shale dry distillation system |
| 03/06/2013 | CN102070260B Wastewater recycling method and device for collection pipe section of dry distillation system for oil shale |
| 03/06/2013 | CN102010733B Method and device for condensing and recovering shale oil in collecting tube section of oil shale retorting system |
| 03/06/2013 | CN102010732B Method and device for condensing and recovering shale oil in gas tower section of oil shale distillation system |
| 03/05/2013 | US8388850 System and method of water treatment |
| 02/28/2013 | WO2013027125A2 Apparatus and methods for sequential treatments of process flows |
| 02/28/2013 | US20130048572 Self-contained irrigation polishing system |
| 02/28/2013 | US20130048570 Concentration of suspensions |
| 02/28/2013 | US20130048562 Treatment of gas well production wastewaters |
| 02/28/2013 | US20130048558 Water treatment method and ultrapure water producing method |
| 02/28/2013 | US20130048557 Dual-Chambered Wetland Biofilter Treatment System |
| 02/28/2013 | DE102011081915A1 Splitting water useful for generating reactive species, comprises providing an aqueous phase and a gaseous phase and forming a boundary region of the aqueous and the gaseous phases, and coupling high-frequency electromagnetic radiation |
| 02/28/2013 | DE102011081447A1 Sterilizing water, comprises introducing chemical sterilizing agent into first portion of water to be sterilized, rectifying first solution with sterile gas, and introducing separated chemical sterilizing agent into second portion of water |
| 02/28/2013 | CA2845996A1 Apparatus and methods for sequential treatments of process flows |
| 02/27/2013 | EP2562131A1 Filter cartridge system |
| 02/27/2013 | EP2562130A1 Water dispenser with pivoted spill collector |
| 02/27/2013 | CN202754880U Treatment device for landfill leachate |
| 02/27/2013 | CN202754879U Movable integration reactor for sewage treatment |
| 02/27/2013 | CN202754878U Continuous biological treatment device for sewage |
| 02/27/2013 | CN202754877U Processing device of town domestic sewage |
| 02/27/2013 | CN202754876U Filtering recycling and zero-emission system for printing fountain solution |
| 02/27/2013 | CN202754875U Container type domestic sewage advanced treatment device |
| 02/27/2013 | CN202754874U Combined biological filter device |
| 02/27/2013 | CN202754873U Whole membrane technology sea water desalination system |
| 02/27/2013 | CN202754872U Brine treating system |
| 02/27/2013 | CN202754871U Full-automatic cooling and heating direct-drinking water purifier |
| 02/27/2013 | CN202754870U Zero-emission nickel-contained electroplating waste water concentrating and treating system |
| 02/27/2013 | CN202754869U Zero-discharge concentration treatment system for explosion hook electroplating wastewater |
| 02/27/2013 | CN202754868U Alkali weight reduction wastewater treatment device |
| 02/27/2013 | CN202754867U Micro-electrolysis catalytic device for sewage treatment equipment |
| 02/27/2013 | CN202754866U Device for treating sewage in ceramic factory |
| 02/27/2013 | CN202754865U Full-automatic dosing system of electroplating sewage treatment device |
| 02/27/2013 | CN202754864U High-density mechanical stirring clarifier |
| 02/27/2013 | CN202754863U Efficient device used for treating and recycling of high-salty waste water |
| 02/27/2013 | CN202754862U Chromate waste water treatment and recovery device |
| 02/27/2013 | CN202754861U High-efficiency water purification recycling device |
| 02/27/2013 | CN202754860U Water purifying equipment |
| 02/27/2013 | CN202754859U Water purifying equipment |
| 02/27/2013 | CN202754858U Water filter device |
| 02/27/2013 | CN202754857U Hand-operated type seawater desalination device |
| 02/27/2013 | CN202754856U Integrated drinking water equipment |
| 02/27/2013 | CN102947229A Treatment of phosphate-containing wastewater |
| 02/27/2013 | CN102943657A Deoxidization-temperature control-water injection pinch and deoxidization-temperature control-water injection method |
| 02/27/2013 | CN102943583A Method for constructing cast-in-situ steel concrete modular sewage treatment facility for town |
| 02/27/2013 | CN102943507A Rural tower-free aseptic hygienic automatic water supply device |
| 02/27/2013 | CN102942973A Method and system for combined air stripping biogas slurry depth treatment and biogas purification and desulfurization |
| 02/27/2013 | CN102942293A Tidal current wetland coupled electrochemical reinforced denitrification and dephosphorization method and system |
| 02/27/2013 | CN102942292A Flow and device for aquaculture sewage combination purifying treatment |
| 02/27/2013 | CN102942291A Process for treating dinitrodiazophenol waste water |
| 02/27/2013 | CN102942290A Sewage treatment method using micro-aerobic autotroph to remove nitrogen |
| 02/27/2013 | CN102942289A Surface undercurrent coupled household sewage treatment system |