Patents
Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429)
07/2007
07/11/2007EP1805109A1 Method and apparatus for treating aqueous medium
07/11/2007CN1997598A 净水器 Water Purifier
07/11/2007CN1995562A Hotel bathing waste water treatment and integral reclamation apparatus and its method
07/11/2007CN1994942A Harmless processing method of container-washing waste water
07/11/2007CN1994941A Process for treating waste paper-making liquor
07/11/2007CN1994940A Circulated backfilling and artificial wetland combined leachate processing method and its facility
07/11/2007CN1994939A Condensed oil sewage degradation method for chemical oxygen demand standard
07/11/2007CN1994938A Process of oxygen-enriched aeration biological nitration for removing NH3-N of lightly polluted source water
07/11/2007CN1994937A Air float-oxygen-enriched organism processing and reusing method for hotel sewage
07/11/2007CN1994936A Method for processing and resuing carbinol waste water for circulated cooling water
07/11/2007CN1994935A Odor-free energy-saving micro aerobiont combined processing system for cabaret sewage processing and reusing
07/11/2007CN1994934A Method for processing cyanogens-containing waste water using chemical precipitation and gamma ray irradiation
07/11/2007CN1994933A Hydrazine hydrate byproduct 5% salt water processing and reclamation method
07/11/2007CN1994932A Method for circulated utilization of mother liquor of alpho-naphthol, beta-naphthol ethyl naphthol production
07/11/2007CN1994931A Process for treating EDTA chemical rinsing waste water
07/11/2007CN1994930A Method for processing washing acid water from cyclohexanone prepared from cyclohexane by bionic catalytic oxidation
07/11/2007CN1994929A High-concentration chromium-containing wastewater resource treatment method
07/11/2007CN1994928A Movable and integral drinking water purifier
07/11/2007CN1994927A Method for removing nitrobenzene from original water adopting powder active carbon and coagulant
07/11/2007CN1325404C Harmless oil field mud and sand treating method and apparatus
07/11/2007CN1325402C Printing and dyeing waste water disposal process
07/11/2007CN1325401C Circular installation for the biological treatment of wastewater
07/11/2007CN1325400C House refuse percolate treating method
07/11/2007CN1325399C Method of using ultra xonic wave to quickly remove algae in water plant raw water
07/10/2007US7241388 Means to miniaturize diffusion filters for particulate removal
07/10/2007US7241386 Water cleaner as immersed in water tank
07/10/2007US7241373 Nitrogen treating method
07/10/2007US7240681 Trailer mounted mobile apparatus for dewatering and recovering formation sand
07/10/2007CA2341106C Portable, potable water recovery and dispensing apparatus
07/05/2007US20070151929 Water purification device and method
07/04/2007EP1803689A1 System for treating wastewater of an industrial plant, in particular of a power plant
07/04/2007CN2918408Y Portable manual desalination equipment of sea water
07/04/2007CN1990398A Multi-pipe plate-type water purification system
07/04/2007CN1990397A Steel iron wastewater coagulating sedimentation and filtration treatment system
07/04/2007CN1990396A Treatment process for waste water of PVC production
07/04/2007CN1323958C Method for processing urban sewage deeply
07/04/2007CN1323957C Electrosilvering cleaning water comprehensive utilization
07/04/2007CN1323956C Combined effluent treating process of photooxidizing Fenton's reaction, flocculation and microbial degradation
07/03/2007US7238283 System for wastewater treatment
07/03/2007US7238271 Subjecting the organic wastewater to an electrolytic oxidation treatment by vibrating the organic wastewater and treating the organic wastewater with a microorganism; ethylenediaminetetraacetic acid (EDTA), 1,3-propylenediaminetetraacetic acid (PDTA) and diethylenetriaminepentaacetic acid (DTPA
07/03/2007US7238164 Systems, methods and apparatuses for pumping cassette-based therapies
07/03/2007CA2181939C Method for purifying an organic waste-containing medium
06/2007
06/28/2007WO2007072502A2 Composition and process for conversion of paint sludge into reusable paint
06/28/2007WO2007072127A1 Apparatus for purification treatment of drinking water and process therefor
06/27/2007EP1801078A1 Apparatus for purification treatment of drinking water and process therefor
06/27/2007EP0975552B1 Filter cartridge for gravity-fed water treatment devices
06/27/2007CN2915850Y Chemical treatment apparatus for waste water
06/27/2007CN2915849Y Nano function water quality ecological regulation device possessing same core structure catalyzing room
06/27/2007CN2915848Y Environment-friendly waste water-free water purifier
06/27/2007CN2915847Y Zero discharge processing and reusing device of electroplating waste water
06/27/2007CN1989076A 水净化系统 Water purification system
06/27/2007CN1986461A Method of treating domestic sewage dispersively and its reactor
06/27/2007CN1986460A Process of treating waste water from artificial leather base cloth production
06/27/2007CN1986459A Process of treating waste water from thermosensitive material production
06/27/2007CN1986458A Carbide residue and waste water treating process
06/27/2007CN1986457A Water saving and ecologically fertilizer utilizing process and its device
06/27/2007CN1323042C Printing and dyeing wastewater recovery and disposal method
06/27/2007CN1323041C Waste water treating and resourcelization method for tobias acid production
06/26/2007US7235178 Pretreating by surface filtration and collection in a mixing tank; continuous feeding into a three stage bioreactor; denitrification and sedimentation of the solids in a third tank; the sludge is recirculated and disinfected, and then fine filtered in a fourth tank
06/26/2007US7235175 Device for treating hydrophilic sludge by hydraulic turbulence effect combined with oxidation and chemical reactions by additive input
06/26/2007CA2254749C Desalting aqueous streams via filled cell electrodialysis
06/21/2007WO2007068804A1 System for filtering and removing viruses from water supply sources
06/21/2007US20070138081 Portable Water Purification and Decontamination System
06/21/2007DE102005061302B3 Paper production unit comprises a treatment unit connected to a paper machine, and a cleansing and/or material recovery unit
06/21/2007CA2632048A1 System for filtering and removing viruses from water supply sources
06/20/2007CN2913355Y High concentration organic solvent water treatment facilities
06/20/2007CN2913354Y Circulation water-using and water-saving apparatus for ejection gun type car-wash
06/20/2007CN1984845A Double-layered compacted solid water-purification product
06/20/2007CN1982237A Quick-decomposing biological sewage treatment and treating system
06/20/2007CN1982236A Method for electrolyzing water
06/20/2007CN1321920C Dephosphorizing technology for waste water treatment of high efficiency, low cost and no pollution
06/20/2007CN1321911C Process and apparatus for removing ferromanganese from underground water
06/19/2007US7233222 Inductively powered apparatus
06/19/2007CA2250890C Process for the biological purification of waste water
06/14/2007US20070131602 Quick change filter and bracket system with key system and universal key option
06/14/2007US20070131598 Methods and apparatuses for filtering water
06/13/2007EP1794095A1 Water purification apparatus
06/13/2007CN2911026Y House waste water recovery and utilizing apparatus
06/13/2007CN1978347A Movable cabinet type water treatment system
06/13/2007CN1978346A Refuse leachate treatment technology
06/13/2007CN1978345A Method and apparatus for separating cyclo-hexane oxidation waste alkali
06/13/2007CN1321078C Method for sludge reduction using ultrasonic treatment
06/13/2007CN1321069C Method of purifying fischer-tropsch derived water
06/12/2007US7230255 Photocatalyst sterilizer
06/07/2007WO2007062898A1 Refrigeration device comprising a water filter
06/07/2007US20070126365 Inductively powered apparatus
06/07/2007US20070125719 Pretreating with reducing agent; receiving at an inlet port of a pressurized advanced oxidation system including ozonization unit, utilized to reduce organic contaminants in the source water to form water having a total organic carbon (TOC) level of less than three hundred parts per billion
06/07/2007US20070125692 Point-of-Use Water Treatment System
06/06/2007DE10310991B4 Vorrichtung zur In-Situ Reinigung von Grundwasserströmen Apparatus for in situ cleaning of groundwater flow
06/06/2007CN2908484Y Animal culturing sewage treatment system
06/06/2007CN1974445A Method and system for treating concentrated liquid from reverse osmosis of high concentration waste water
06/06/2007CN1974444A Composite method of treating oil-containing sewage and waste water
06/06/2007CN1974443A Low cost method and apparatus for deeply purifying rain water, washed water and slightly polluted water
06/06/2007CN1320220C Device for conditioning water produced by air conditioning or environmental dehumidification apparatuses or plants
06/06/2007CN1319880C Treatment method for sewage
06/06/2007CN1319879C Electrolytic aluminium factory production waste water disposal method
06/06/2007CN1319878C Treating method and apparatus for seawater desalting
06/06/2007CN1319877C Method of treating organic waste water containing salt
06/06/2007CN1319870C Method for treatment of sludge from waterworks and wastewater treatment plants
06/05/2007US7226536 Portable water filtration device