| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 01/12/2005 | CN1562822A Compositive zoology and oxidation method for treating domestic sewage |
| 01/12/2005 | CN1562821A Method for eliminating poison from microcapsule algal in water body |
| 01/12/2005 | CN1562820A Method for treating wastewater of carbonization by using microbe |
| 01/12/2005 | CN1562819A Technique for producing super oxyanion water in steady state |
| 01/12/2005 | CN1562818A Method for treating wastewater of dinitrodiazophenol |
| 01/12/2005 | CN1562817A Method for purifying wastewater through magnetic nano TiO2/SiO2/Fe2O3 composite photocatalyst and equipment |
| 01/12/2005 | CN1562816A Method for refining running water and equipment |
| 01/12/2005 | CN1562815A Reverse osmosis method for treating sewage |
| 01/12/2005 | CN1562814A Technique for feeding water to boiler of reclaiming heat from treating sewage of thick oil |
| 01/12/2005 | CN1562813A Purifying cold seawater and heat insulation conveying system |
| 01/12/2005 | CN1562812A Method of carrying out sewerage treatment by using zoology filter cell and earthworm tower type zoology filter cell |
| 01/12/2005 | CN1562792A New technique of no pollution discharge for treating black liquor from papermaking |
| 01/12/2005 | CN1184152C Overlapped bio-chemical filter |
| 01/12/2005 | CN1184151C Sewage treating process in urban area |
| 01/11/2005 | US6841068 Domestic nanofiltration membrane based water purifier without storage tank |
| 01/11/2005 | US6840251 Forming chlorine dioxide in situ using alakli halites or halates; killing microorganisms |
| 01/06/2005 | US20050000906 Methods and apparatus for treating animal manure |
| 01/06/2005 | US20050000905 Purging impurities from solutions; ozonization, ionization, coagulation, purification |
| 01/06/2005 | US20050000895 Coagulation pretreatment; flocculation; filtering potable water; immersed suction driven device |
| 01/06/2005 | US20050000867 Water filtering apparatus |
| 01/05/2005 | EP1493730A1 Process for working up side products of the dinitrotoluene production |
| 01/05/2005 | EP1189684B1 Water dispensing apparatus with filter integrity testing system |
| 01/05/2005 | CN2668626Y Combined sewage treatment apparatus |
| 01/05/2005 | CN2668625Y Small sewage duoble-treatment apparatus |
| 01/05/2005 | CN1559938A Process for water supply deep treatment of catalyzing ozone oxydation by hydroxy ferric oxide as catalyst |
| 01/05/2005 | CN1559933A Process for treating waste water of nitrobenzene, 2, 4-dinitrophenol, p-nitro-chlorebenzene |
| 01/05/2005 | CN1559932A Process for treating waste water of chlorobenzene and benzene containing high alkaline and high chloro ion content |
| 01/05/2005 | CN1183047C Method for comprehensive treatment and utilization of industrial water |
| 01/05/2005 | CN1183041C Process for purification of industrial waste water fro propylene oxide production process |
| 01/04/2005 | US6838000 Ultrafiltration, microfiltration of gray/black water with membrane; for producing potable water |
| 01/04/2005 | CA2372331C System and method for removing pollutants from water |
| 12/30/2004 | US20040267062 Process for working up secondary components in the preparation of dinitrotoluene |
| 12/30/2004 | US20040262238 Process for working up the waste water obtained in the preparation of dinitrotoluene |
| 12/30/2004 | US20040262231 Method to treat water with dissolved gas |
| 12/30/2004 | US20040262219 Periphyton filtration pre-and post-treatment system and method |
| 12/30/2004 | US20040262206 Mobile field electrical supply, freshwater and saltwater purification system, powder wash, wash station, and water collection and reclamation apparatus |
| 12/30/2004 | DE202004016190U1 Waste water cleaning assembly, at washing machine outflow, has tubular vessel with electrodes to generate a pulsed high voltage field for acceptable release of grease/oil and organic/inorganic matter into drains |
| 12/30/2004 | DE202004015611U1 Desalination plant, to convert sea water into drinking water, has vessel to take water continuously as electrolyte with spaced electrode units fed with alternating current to give separate fractions of concentrated/salt-free water |
| 12/29/2004 | WO2004113231A2 Systems and methods for treating waste water |
| 12/29/2004 | WO2004112515A1 Alkaline drinking water, a colloidal complex from peat and a crossflow filter. |
| 12/29/2004 | WO2004085579A3 Method and apparatus for refining biodiesel |
| 12/29/2004 | EP1490303A1 Waste water treatment process for animal processing contaminant removal |
| 12/29/2004 | EP1490156A1 Swivelling filter head assembly |
| 12/29/2004 | EP1252105B1 Method of recycling dispersion paint substances or glues from waste water and apparatus for performing the same |
| 12/29/2004 | EP1165443B1 Water purification process |
| 12/29/2004 | EP1082268B1 Ultraviolet treatment for aqueous liquids |
| 12/29/2004 | CN2666902Y Domestic sewage purification secondary use apparatus |
| 12/29/2004 | CN2666901Y ZMBR sewage treatment integrated equipment |
| 12/29/2004 | CN2666900Y Comprehensive water treatment system |
| 12/29/2004 | CN2666899Y Apparatus for recovering phenol end ammonia in waste water |
| 12/29/2004 | CN1558049A Waste-water free quality separating water supply |
| 12/29/2004 | CN1557999A Technology for treating electroplating effluent by biochemical process |
| 12/29/2004 | CN1557748A Process and apparatus for industrial production of drinking water having slight alkaline and high purity |
| 12/29/2004 | CN1182056C Compound wetland ecology method and system for controlling pollution of nitrogen and phosphor |
| 12/29/2004 | CN1182055C Zeolite-bio combined adsorption regenerative sewage treating process |
| 12/29/2004 | CN1182054C Waste water purifying treatment system |
| 12/29/2004 | CN1182053C Process for treating waste water generated in production of refined terephthalic acid |
| 12/29/2004 | CN1182052C Process and apparatus for wastewater by batched membrane-bioreactor |
| 12/28/2004 | US6835307 Thermal water treatment |
| 12/28/2004 | CA2316656C Electrolytic reduced water, anti-cancer drug, and producing method and apparatus thereof |
| 12/23/2004 | WO2004110939A1 Pure water production system |
| 12/23/2004 | WO2004110935A1 Method and device for treating and recycling waste water |
| 12/23/2004 | WO2004110934A1 Water saving process |
| 12/23/2004 | WO2004110590A1 Waste water filtration system vehicle |
| 12/23/2004 | US20040256317 Method for treating for-treatment water containing organic matter and nitrogen compound |
| 12/23/2004 | US20040256302 Portable water purifier |
| 12/23/2004 | US20040256301 Process and means for the treatment of water in an aquaculture system |
| 12/23/2004 | US20040256299 Systems and methods for treating waste water |
| 12/23/2004 | US20040256243 Electrolyzed water production system |
| 12/22/2004 | EP1487746A2 Pre- and post-treatment system and method for periphyton filtration using ozone |
| 12/22/2004 | EP1487560A1 Multiple barrier filter apparatus |
| 12/22/2004 | EP1406840B1 Method and device for decontaminating waters which are loaded with organic halogen compounds (halogenated hydrocarbons) |
| 12/22/2004 | EP1349640A4 Method and apparatus for treatment of drinking water |
| 12/22/2004 | EP1235750B1 Water purifying system |
| 12/22/2004 | CN2665123Y Rain pumping plant overflow, sterilization, decolorization and deodorization integrated apparatus |
| 12/22/2004 | CN1556052A Treatment technology of emulsion contained spent water |
| 12/22/2004 | CN1556051A Method of using ultra xonic wave to quickly remove algae in water plant raw water |
| 12/22/2004 | CN1556048A Chromium containing waste water treatment method |
| 12/22/2004 | CN1180997C Ultrosonic wave concerted biological adsorption water treating method |
| 12/22/2004 | CN1180996C Biochemical reactor for treating oil field sewage and its treating process |
| 12/22/2004 | CN1180995C Method for treating high-concentration sulfur dioxide waste liquid |
| 12/22/2004 | CN1180985C Water purifying system |
| 12/21/2004 | US6833075 Filtration and/or purification of fluids, water or other solutions containing microbiological and chemical contaminants by passing the fluid through a treatment composite with or without a binder matrix having a surface treatment |
| 12/16/2004 | WO2004108608A1 Method and apparatus for treating wastewater containing organic compound of high concentration |
| 12/16/2004 | WO2004108605A1 Photocatalyst sterilizer |
| 12/16/2004 | WO2004073177A3 Inductively powered apparatus |
| 12/16/2004 | US20040254682 Apparatus, system and method for non-chemical treatment and management of cooling water |
| 12/16/2004 | US20040251212 Method of wastewater treatment and wastewater treatment apparatus |
| 12/16/2004 | US20040251210 Comprises a support structure containing components such as a filter component, inlet and outlet connections and a water storage vessel, all components in fluid communication; assembling a self-contained water filter assembly designed for uniform placement in a refrigerator |
| 12/16/2004 | US20040251207 Method and apparatus for deionizing water |
| 12/15/2004 | EP1486308A2 Process for the correction treatment of the pulp in a granite-cutting unit |
| 12/15/2004 | EP1485182A1 Quick change filter and bracket system with key system and universal key option |
| 12/15/2004 | CN2663411Y Treatment and reclamation equipment for flushing water |
| 12/15/2004 | CN2663410Y Decontamination cycle processing equipment for wastewater from car washer |
| 12/15/2004 | CN2663409Y Processor for acid cleaning and phosphorizing sewage |
| 12/15/2004 | CN1554603A Process and method for treating city waste warter |
| 12/15/2004 | CN1554602A Method for treating garbage percolation liquid |
| 12/15/2004 | CN1179896C Anaerobic molecular decomposing method of refuse percolate |
| 12/15/2004 | CN1179895C Sewage purifying treatment method |
| 12/14/2004 | US6831417 Method of manufacturing a lamp assembly |