| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 06/26/2013 | CN102502993B Method for treating acidic heavy metal wastewater and recycling treated wastewater |
| 06/26/2013 | CN102442741B 1+1 protection system for etching solution recycling equipment |
| 06/26/2013 | CN102424493B Apparatus for treating iron-containing acid waste water generated from power battery disassembly, and method thereof |
| 06/26/2013 | CN102363540B Multilevel recycling system and method for industrial wastewater |
| 06/26/2013 | CN102358651B Advanced treatment process for fermented pharmaceutical waste water |
| 06/26/2013 | CN102351338B Advanced treating system for drinking tap water and water quality treating method |
| 06/26/2013 | CN102190390B Vanadium and titanium industrial wastewater treatment device |
| 06/26/2013 | CN102174830B Automatic water-saving device |
| 06/26/2013 | CN102153217B Electroplating integrated wastewater treatment method |
| 06/26/2013 | CN102145946B Method for treating trace amount of cadmium in wastewater by chelation, coagulation and ultrafiltration combination |
| 06/26/2013 | CN102079550B Waste saline purification technique |
| 06/26/2013 | CN102060334B Preparation of ferrous compound in polyhydroxy structural state and application of ferrous compound in wastewater reduction pretreatment |
| 06/26/2013 | CN101830595B Method for treating leather-making industrial wastewater |
| 06/26/2013 | CN101704621B Integrated graywater treating method and system |
| 06/20/2013 | WO2013088291A1 Submerged arc removal of contaminants from liquids |
| 06/20/2013 | US20130153509 Wastewater treatment comprising electrodissolution, flocculation and oxidation |
| 06/19/2013 | EP2603464A1 Treatment of municipal wastewater with anaerobic digestion |
| 06/19/2013 | EP2603461A1 Method for treating wastewaters from the reprocessing of crude aromatic nitro compounds |
| 06/19/2013 | EP2603460A1 Low cost water purification device |
| 06/19/2013 | CN203009918U Decompression split-flow valve and water purification machine formed by decompression split-flow valve |
| 06/19/2013 | CN203009905U Decompression reflux flow valve and water purification system formed by decompression reflux flow valve |
| 06/19/2013 | CN203007097U Combined treatment system for printing and dyeing waste water |
| 06/19/2013 | CN203007096U Sewage treatment device |
| 06/19/2013 | CN203007095U Sewage treatment system for expressway subsidiary facilities |
| 06/19/2013 | CN203007094U Community domestic water treatment device |
| 06/19/2013 | CN203007093U Sewage treatment MBR (membrane bioreactor) |
| 06/19/2013 | CN203007092U Photocatalysis-postpositioned internal-circulation anaerobic fluidized membrane bioreactor |
| 06/19/2013 | CN203007091U Buried miniature sewage treatment integrated device |
| 06/19/2013 | CN203007090U Dye intermediate sewage treatment complete device |
| 06/19/2013 | CN203007089U Sewage treatment complete equipment for airports |
| 06/19/2013 | CN203007088U Sewage treatment complete equipment for expressway service area |
| 06/19/2013 | CN203007087U Pig-raising wastewater treatment system |
| 06/19/2013 | CN203007086U Multi-section deployable nitrogen and phosphorus removal biological reaction tank |
| 06/19/2013 | CN203007085U Sewage sludge zero discharge device |
| 06/19/2013 | CN203007084U Wastewater treatment system for automobile manufacture industrial production |
| 06/19/2013 | CN203007083U Spiral-flow type sterilized water machine |
| 06/19/2013 | CN203007082U Countercurrent multiple-effect evaporation device |
| 06/19/2013 | CN203007081U Low-temperature multi-effect distillation desalination system |
| 06/19/2013 | CN203007080U Natural resource multi-unit integrated life support system |
| 06/19/2013 | CN203007079U High mineralization degree and salinity spring water processing system |
| 06/19/2013 | CN203007078U Sewage processing device |
| 06/19/2013 | CN203007077U Environment-friendly heating direct drinking water equipment |
| 06/19/2013 | CN203007076U Environment-friendly water equipment with contamination purifying function |
| 06/19/2013 | CN203007075U Industrial circulating water composite sterilization system |
| 06/19/2013 | CN203007074U Intelligent pure water treatment device |
| 06/19/2013 | CN203007073U Water dispenser capable of generating negative hydrogen ion water |
| 06/19/2013 | CN203007072U Water treatment equipment for collected cellar rainwater |
| 06/19/2013 | CN203007071U Sewage catalytic ozonation treatment device |
| 06/19/2013 | CN203007070U Device for preprocessing heavy oil refining sewage |
| 06/19/2013 | CN203007069U Water treatment system for mobile shelter hospital |
| 06/19/2013 | CN203007068U Multifunctional wastewater treatment device |
| 06/19/2013 | CN203007067U Combined filter element of water purifier |
| 06/19/2013 | CN203007066U Concentrated water recycling system of pharmaceutical enterprises |
| 06/19/2013 | CN203007065U Treatment and reclamation system for active carbon production wastewater |
| 06/19/2013 | CN203007064U Reaction device for processing acid-containing wastewater through multi-decomposed method |
| 06/19/2013 | CN203007063U Comprehensive wastewater treatment device of inorganic laboratory |
| 06/19/2013 | CN203007062U Sewage treatment complete-set device for fluorescent penetration device |
| 06/19/2013 | CN203007061U Integrated intelligent oxidation complete device |
| 06/19/2013 | CN203007060U Bubble separating grinding wastewater treating device |
| 06/19/2013 | CN203007059U High-density integrated water purifier |
| 06/19/2013 | CN203007058U Movable integrated device for oil field wastewater treatment |
| 06/19/2013 | CN203007057U Mercury-containing waste water treating device |
| 06/19/2013 | CN203007056U Ultra-filtration water processing device |
| 06/19/2013 | CN203007055U Device for recycling wastewater containing heavy metal |
| 06/19/2013 | CN203007054U Ultrafiltration equipment |
| 06/19/2013 | CN203007053U Wastewater recycling system |
| 06/19/2013 | CN203007052U Self-sucking water purifier |
| 06/19/2013 | CN203007051U Improved-structured water purifier preparation device |
| 06/19/2013 | CN203007050U Novel reverse-osmosis (RO) water purification system |
| 06/19/2013 | CN203007049U Polypropylene and compressed active carbon compounded water purification filter element |
| 06/19/2013 | CN203007048U Ecological limonite drinking water purifier |
| 06/19/2013 | CN203007047U Nuclear plant reverse-osmosis pre-desalinized concentrated water recovery treatment device with bypass |
| 06/19/2013 | CN203007046U Nuclear plant reverse-osmosis pre-desalinized concentrated water recovery treatment device |
| 06/19/2013 | CN203006992U Purifying system for drinking water |
| 06/19/2013 | CN203006975U Solar continuous heat supply seawater desalination device |
| 06/19/2013 | CN203002469U Ash sluicing water circulating treatment system of wet type electrostatic precipitator |
| 06/19/2013 | CN203000329U Magnetized and mineralized oxygen-adding water cup |
| 06/19/2013 | CN202999080U Composite inland cultivation device |
| 06/19/2013 | CN103168006A Ultrapure water production process |
| 06/19/2013 | CN103160263A Method for preparing base fluid of fracturing fluid by using oil field well site waste water |
| 06/19/2013 | CN103159385A Treatment method for carton packaging and printing production wastewater |
| 06/19/2013 | CN103159384A Method for processing food industry wastewater with small sludge emission |
| 06/19/2013 | CN103159383A Rural domestic sewage biological treatment system |
| 06/19/2013 | CN103159382A Water-based ink wastewater treatment technique |
| 06/19/2013 | CN103159381A Fine chemical wastewater treatment and reuse method |
| 06/19/2013 | CN103159380A Zero-energy-consumption sewage treatment system and method for constructed wetlands |
| 06/19/2013 | CN103159379A System and method for treating sewage at zero energy consumption by using ecological filter bed |
| 06/19/2013 | CN103159378A Ionizing aeration/disinfection data processing system and working method thereof |
| 06/19/2013 | CN103159377A Domestic sewage treatment system |
| 06/19/2013 | CN103159376A Negative pressure ammonia steaming process method of using coking circulating ammonia water waste heat to dispose residual ammonia water |
| 06/19/2013 | CN103159375A Mobile vehicle special for oil-water separation of kitchen waste hogwash and waste water purifying treatment |
| 06/19/2013 | CN103159374A Treatment process for organic waste water with acrylonitrile materials |
| 06/19/2013 | CN103159373A Tinpot heavy oil refinery sewage treatment device |
| 06/19/2013 | CN103159372A Treatment method for wheat straw pulping black liquor |
| 06/19/2013 | CN103159371A Combined process for treating production wastewater of modified starch |
| 06/19/2013 | CN103159370A Oil refining wastewater treatment system |
| 06/19/2013 | CN103159369A Method for denitrification treatment of coking wastewater |
| 06/19/2013 | CN103159368A Stage treatment type magnetic filter device |
| 06/19/2013 | CN103159367A Kitchen waste and waste water treatment integrated device and method |
| 06/19/2013 | CN103159366A Method of treating copper-containing alkaline wastewater of printed circuit board with integrated membranes |