Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 9 - Multistep treatment of water, waste water or sewage
Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429)
11/2003
11/13/2003US20030209502 Water pollution control
11/13/2003US20030209490 Desulfurization by hydrogen peroxide oxidation
11/13/2003US20030209477 Transportable water treatment apparatus
11/13/2003CA2484029A1 Methods of simultaneously cleaning and disinfecting industrial water systems
11/12/2003EP1361197A1 Method and apparatus for clarification of water
11/12/2003EP1360148A1 Water treatment plant with ballasted flocs and degreasing
11/12/2003EP1257713B1 nPPARATUS FOR EXTRACTING POTABLE WATER FROM THE ENVIRONMENTAL AIR
11/12/2003CN1454852A Zeolite-bio combined adsorption regenerative sewage treating process
11/11/2003US6644060 Apparatus for extracting potable water from the environment air
11/10/2003CA2422608A1 Transportable water treatment apparatus
11/10/2003CA2385828A1 Ozone water treatment system
11/06/2003WO2003092329A2 Inductively powered lamp assembly
11/06/2003WO2003091165A1 Mediated electrochemical oxidation process used as a hydrogen fuel generator
11/06/2003WO2003091162A1 Integrated energy recovery system
11/06/2003WO2003090561A1 Reduction in biological oxygen demand levels in waste water effluents
11/06/2003WO2002066382A8 High efficiency electrolysis cell for generating oxidants in solutions
11/06/2003WO2002064511A8 Buoyant electrolysis device for treating a reservoir of water
11/06/2003US20030205535 Electrochemical method for treating wastewater
11/06/2003US20030205524 Process for treatment of aqueous environments containing a water-soluble polymer
11/06/2003US20030205518 Water filter assembly
11/06/2003US20030205478 Object plating method and system
11/06/2003CA2822260A1 Inductively powered lamp assembly
11/06/2003CA2771058A1 Inductively powered lamp assembly
11/06/2003CA2482939A1 Reduction in biological oxygen demand levels in waste water effluents
11/05/2003EP1359126A1 Free atom aqueous solution producing apparatus, free-atom aqueous solution producing method, and free-atom aqueous solution
11/05/2003EP1358130A1 Method and plant for thickening sludge derived from water treatment by flocculation-decantation with ballasted floc
11/05/2003CN2584600Y Waste water treatment system with oil expeller for vehicle cleaning
11/05/2003CN1454185A Water purification system and method
11/05/2003CN1453228A Waste water purifying treatment system
11/05/2003CN1453227A Biochemical reactor for treating oil field sewage and its treating process
11/05/2003CN1453219A Swimming pool water disposal equipment
11/05/2003CN1126718C Method and equipment for producing disinfected water with substance containing iodine under continuous dynamic water flow
11/04/2003US6641729 Mobile water purifying device
10/2003
10/30/2003WO2003089113A1 Process for preparing reactive compositions for fluid treatment
10/30/2003US20030203827 Method of simultaneously cleaning and disinfecting industrial water systems
10/30/2003US20030201731 Inductively powered lamp assembly
10/30/2003US20030201226 Forming sludge from grease trap wastes; pasteurization
10/30/2003US20030201225 Organic slurry treatment process
10/30/2003US20030200997 Forming chlorine dioxide in situ using alakli halites or halates; killing microorganisms
10/30/2003US20030200603 Swimming pool water treatment plant
10/29/2003EP1357088A1 A swimming pool water treatment plant
10/29/2003CN2583096Y Seawater desalination treatment device
10/29/2003CN2583095Y Active ion water generator
10/29/2003CN2582991Y Automatic water purifier for ship
10/29/2003CN1451636A Biological organic compound liquid nanofertilizer and preparing process thereof
10/29/2003CN1451616A Method for treating high-concentration sulfur dioxide waste liquid
10/29/2003CN1451615A Method for removing ammonia nitrogen from reused sewage
10/28/2003US6638427 Waste water treatment method being able to treat surface active agent, nitrogen, hydrogen peroxide and phosphor with high efficiency
10/25/2003CA2426556A1 A swimming pool water treatment plant
10/23/2003WO2003086983A1 Waste water treatment process for animal processing contaminant removal
10/23/2003WO2003086982A1 Method for cleaning polluted water
10/23/2003WO2003086981A1 Contaminant removal apparatus installation method
10/23/2003WO2003086980A1 Method of wastewater treatment and wastewater treatment apparatus
10/23/2003WO2003086979A1 Water purifier
10/23/2003WO2003086977A1 Methods and apparatus for treating animal manure
10/23/2003WO2003086564A2 Removal of arsenic from drinking and process water
10/23/2003WO2003086066A1 Method for the purification of wastewater in fish farming
10/23/2003US20030196969 Sludge stripping process and system
10/23/2003US20030196960 Process for preparing reactive compositions for fluid treatment
10/23/2003US20030196944 Water purifying kits
10/23/2003US20030196938 Apparatus for removing dissolved metals from wastewater by electrocoagulation
10/22/2003CN2581440Y Purifier for high turbidity waste water
10/22/2003CN1451068A Apparatus for extracting portable water from the environmental air
10/22/2003CN1450927A Water purifier
10/22/2003CN1450007A Biological comprehensive treatment method for domestic organic refuse and sewage and used treatment system thereof
10/22/2003CN1450006A Treatment of phenol containing decanedioic acid waste water by extractive distillation
10/21/2003US6635177 Introducing sewage to the bottom of a fermentation cell; removing suspended solids, microorganisms, nutrients, and pathogens from the sewage to produce a disinfected quaternary effluent; producing purified water
10/16/2003WO2003084882A1 Composite water filter
10/16/2003WO2003068686A3 Water filters and processes for using the same
10/15/2003EP1351896A1 Method for the recovery of iron from acidic, metal-contaminated water
10/15/2003EP1351893A1 Device and method for generating and applying ozonated water
10/15/2003CN1448349A Activation sterilizing method of activated water and production installation thereof
10/15/2003CN1448348A Method for comprehensive treatment and utilization of industrial water
10/15/2003CN1448344A Process for treatment of waste water containing boron
10/15/2003CN1448198A System for decomposing organic compound
10/15/2003CN1124235C Method for treating dreg containing arsenic
10/14/2003US6632352 Multi-stage filter
10/14/2003US6632347 Electrochemical treatment of an aqueous solution
10/14/2003CA2102813C Liquid treatment
10/09/2003US20030189006 Waste water treatment process and apparatus for animal processing contaminant removal
10/09/2003US20030189002 Composite water filter
10/09/2003US20030188740 Method for production of enhanced traceable immunizing drinking water and other liquid and gas products, devices for production and use thereof, and use of the enhanced products for immunizing living beings
10/09/2003DE10223037C1 Process for continuous water processing forms initial mixture of powder/granular substances with untreated water, to be dissolved and mixed and distributed evenly in structured flows through reactor
10/08/2003EP1350561A2 System for decomposing organic compound
10/08/2003EP1349640A1 Method and apparatus for treatment of drinking water
10/08/2003CN2578326Y Multi-stage water purifier
10/08/2003CN1446761A Method for purifying water in depth by using ozone photocatalysis biological activity carbon
10/08/2003CN1446760A Method for removing trace amount of organic matter by using ozone/ultraviolet-biological activity carbon
10/08/2003CN1446759A Compound wetland ecology method and system for controlling pollution of nitrogen and phosphor
10/08/2003CN1446758A Waste water high-grade treatment system adopting intermittent aeration, contact oxidation and biological assorption
10/08/2003CN1123543C Process for reclaiming ammonia-contained sewage
10/07/2003US6630428 Blend of fatty acid alkyl esters and lower alkyl glycol ethers; high flash point, low vapor pressure; environmentally safe
10/07/2003US6630071 Process for the treatment of waste water containing heavy metals
10/07/2003US6629686 Process for dissolving gas into a liquid
10/02/2003WO2003080225A1 Upw treatment and system with organic nitrogen removal
10/02/2003WO2003031348A3 Process for recovering and recycling compounds contained in effluents of delignification and bleaching processes in pulp mills
10/02/2003US20030185728 Irradiating ultraviolet rays whose wavelength is less than 300 nm to the polluted liquid or the polluted gas; acid electrolytic water feed pipe and an alkali electrolytic water feed pipe for neutralization
10/02/2003DE20220542U1 Mobile drinking water treatment assembly has fine-pored filter
10/01/2003CN2576709Y Night-soil water-water biological treatment circulation reusing apparatus
10/01/2003CN1445181A Water handles technique by using electrolysis bioactivity carbon
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