Patents
Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429)
04/2013
04/03/2013CN103011523A Town sewage treatment system
04/03/2013CN103011522A Method for treating wastewater generated during printing ink preparation process
04/03/2013CN103011521A Biological treatment method and biological treatment apparatus for strongly alkaline printing and dyeing wastewater
04/03/2013CN103011520A Method for starting A2N two-stage SBR denitrifying phosphorus removal
04/03/2013CN103011519A Treatment method and equipment for high-salt and alkali-weight-reduction waste water
04/03/2013CN103011518A Salt discharge treatment system for salted reservoir, building method and treatment method for salted water
04/03/2013CN103011517A Device and control method for safety guarantee of municipal sewage recycling
04/03/2013CN103011516A Reactive printing wastewater treatment process and device
04/03/2013CN103011515A Soybean wastewater biochemical treatment process and device
04/03/2013CN103011514A Coking wastewater biochemical treatment process and device
04/03/2013CN103011513A Bacteria filter for urban rainwater collecting
04/03/2013CN103011512A Returned sludge treatment device with in-situ sludge reduction function and reinforced denitrifying and phosphorus-removing enhancement effect and returned sludge treatment technology
04/03/2013CN103011511A System for realizing phosphorus recovery in process of enhanced biological phosphorus removal and recovery method thereof
04/03/2013CN103011510A Biological denitrification treatment method of wastewater
04/03/2013CN103011509A Floatation/filtration-integrated polluted water advanced treatment device and method
04/03/2013CN103011508A Circulating water treatment device for industrial culture
04/03/2013CN103011507A Control method and device for deep denitrification treatment of garbage leachate by combination of short-range nitrification and anaerobic ammoxidation
04/03/2013CN103011506A Treatment method of xylose production wastewater
04/03/2013CN103011505A Photocatalytic internal recycle integrated MBR (Membrane Biological Reactor) reactor
04/03/2013CN103011504A Cyclic utilization method of fermentation wastewater produced during industrial production of nosiheptide
04/03/2013CN103011503A Method and device for wastewater treatment and salt extraction during hydrazine hydrate production by ketazine process
04/03/2013CN103011502A Method for deeply treating waste paper pulping and papermaking comprehensive wastewater by using ultrafiltration membrane
04/03/2013CN103011501A High efficiency treatment method for leather industry sewage
04/03/2013CN103011500A Treatment method for industrial organic wastewater
04/03/2013CN103011499A Ecological purification and restoration method for open water body
04/03/2013CN103011498A Method for slowing down pollution of rural town sewage in karst peak cluster canyon to landscape rivers
04/03/2013CN103011497A Backwash combination type farmland non-point source pollution cut-off purification system
04/03/2013CN103011496A Pre-treating method of diazonium mother solution in production process of dinitrodiazophenol
04/03/2013CN103011495A Method for carrying out environmentally-friendly treatment on cassava alcohol vinasse liquid
04/03/2013CN103011494A Movable type method and special vehicle for oil-water separation and wastewater purification of mobile kitchen waste
04/03/2013CN103011493A Method for removing phosphate and nitrogen from hyperphosphate and high ammonia nitrogen sewage and recovering resources
04/03/2013CN103011492A Method for treating semiconductor technology wastewater
04/03/2013CN103011491A Landfill leachate treatment technology by catalysis-anaerobic-electrocoagulation (AMC)
04/03/2013CN103011490A Technology for distributed treatment on domestic sewage from small rural towns
04/03/2013CN103011489A Household garbage leachate treatment system
04/03/2013CN103011488A Domestic waste leachate treatment method
04/03/2013CN103011487A Artificial wetland-biological regeneration integration enhancement denitrogenation and phosphorus removal treatment process
04/03/2013CN103011486A Method for removing gallium in sewage
04/03/2013CN103011485A Electromagnetic fluid water purification process
04/03/2013CN103011484A Method for treating ammonium chloride wastewater during production of glycin prepared based on chloroacetic acid method
04/03/2013CN103011483A Sea water desalting plant with ion trapper
04/03/2013CN103011482A Resource utilization method of acid wastewater
04/03/2013CN103011481A Method for treating production waste liquid of vitamin B1 and obtaining byproducts
04/03/2013CN103011480A Multi-effect wastewater desalination device
04/03/2013CN103011479A Multifunctional RO water production machine and preparation method thereof
04/03/2013CN103011478A Method for treating humic acid chelated heavy metal by photocatalytic redox
04/03/2013CN103011477A Urban surface-source wastewater treatment system without external power supply based on nanofiber membrane
04/03/2013CN103011476A Method for removing cobalt in sewage
04/03/2013CN103011475A Method for removing nickel in sewage
04/03/2013CN103011474A Oilfield poly-surfactant flooding sewage treatment process
04/03/2013CN103011473A Device and method for solar seawater desalination and concentrated seawater resource extraction
04/03/2013CN103011472A Pretreatment method for enhancing BOD (biochemical oxygen demand) absolute value of chemical waste acid
04/03/2013CN103011471A Water treatment process capable of desalting through ion exchange
04/03/2013CN103011470A Water processing apparatus
04/03/2013CN103011469A Technology for treating initiating explosive material production waste water
04/03/2013CN103011468A Seawater desalination pretreatment method
04/03/2013CN103011467A Multi-level water supplier with Chinese-resin-based composite zero-release reverse osmosis membranes
04/03/2013CN103011466A Method for removing manganese in sewage
04/03/2013CN103011465A Method for removing chloride ion in sewage
04/03/2013CN103011464A Treatment method of stibium-containing wastewater
04/03/2013CN103011463A Method for removing zirconium in sewage
04/03/2013CN103011462A Device and method for treating waste residues of circulating make-up water by reutilizing lime softening method of power plant
04/03/2013CN103011461A Method of removing antimony (III) in source water by combining ferric salt coagulation pretreatment and ultrafiltration short flow process
04/03/2013CN103011460A Novel process for removing phosphorus from metal-salt-containing waste phosphoric acid
04/03/2013CN103011459A Liner-free quick-heating type drinking water purifier
04/03/2013CN103011458A Resourceful treatment system for high-concentration fumaric acid waste water
04/03/2013CN103011457A Deep dewatering conditioning method of colistin sulfate residues
04/03/2013CN103011456A Method for recycling condensate water in phosphoric acid concentration system
04/03/2013CN103011455A Method for pretreating 2,4-D pesticide wastewater
04/03/2013CN103011454A Terrestrial heat tail water treating process
04/03/2013CN103011453A Processing method for fluoride waste water in production of solar cells
04/03/2013CN103011452A High efficiency ion exchange electroplating wastewater reuse treatment system
04/03/2013CN103011451A High-efficiency treatment process for nickel-containing wastewater
04/03/2013CN103011450A Treatment method for chlor-alkali industry wastewater
04/03/2013CN103011449A Water supplementing system and method of water circulation cooling device
04/03/2013CN103011448A Combined double-vortex efficient muddy water purification device
04/03/2013CN103011447A Recycling and treating method of sulfuric acid waste sewage
04/03/2013CN103011446A Method for purifying electroplating wastewater and printing and dyeing wastewater simultaneously
04/03/2013CN103011445A Domestic swage reinjection device and method
04/03/2013CN103011444A Under-shaft drilling water treatment device
04/03/2013CN103011443A Water quality diverter for wastewater treatment
04/03/2013CN103011442A Method for oxidation treatment on ethylene waste lye by supercritical water
04/03/2013CN103011441A Method for deep treatment on cyanogens, fluorine and ammonia nitrogen-containing waste water
04/03/2013CN103011440A Method for treatment on titanium sponge production waste water
04/03/2013CN103011439A Cadmium-containing wastewater treatment method
04/03/2013CN103011438A Non-toxic and non-pollution water quality purification material
04/03/2013CN103011437A Ceramic matrix composite zero-release reverse-osmosis seven-membrane multi-leveled water supply device
04/03/2013CN103011436A Ceramic matrix composite reverse-osmosis seven-membrane RO/T (Reverse Osmosis/) zero-release multi-leveled water supply device assembly
04/03/2013CN103011435A Public clean and pure reverse osmosis membrane zero-emission dual water supply machine
04/03/2013CN103011434A Filter cartridge material
04/03/2013CN103011433A Method for purifying sewage by utilizing powder active carbon
04/03/2013CN103011432A Oil removal and separation device and process for waste water containing organic siloxane
04/03/2013CN103011414A Biodialysis system and decontamination method
04/03/2013CN103011374A Sewage treatment method by using submersible relaying type liquid membrane catalysis oxidation small unit
04/03/2013CN103011351A Air inflation-magnetization combined device and air inflation-magnetization combined system for sewage treatment
04/03/2013CN103011347A Method for carrying out electrolytic treatment on copper-containing electroplating wastewater and recycling copper
04/03/2013CN103011313A Sea water desalination supply system
04/03/2013CN103011201A Method for extracting ammonium thiocyanate from ammonia-process desulfurization waste liquid by oxidation process
04/03/2013CN103011081A Neutralization device and method for hydrochloric acid regeneration and desiliconization
04/03/2013CN103008322A Kitchen waste treatment system and method