| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 11/04/2004 | WO2004063100A3 Sanitization system and system components producing ozonated liquid |
| 11/04/2004 | US20040217326 Water treatment compositions |
| 11/04/2004 | US20040217062 Purifying a liquid waste from wet combustion or wet oxidation process of forming acrylic acid, separating solid content copper with a coagulants, precipitating molybdenum oxide with a precipitate agents; demetallization |
| 11/04/2004 | US20040217051 Plant and method for purification of water coming from a desulphuration kerosene plant |
| 11/04/2004 | DE10316921A1 Preventing biological plugging of filters in the catalytic treatment of water comprises passing the water through a prefilter before passing it through a catalyst and then through a main filter |
| 11/04/2004 | DE102004013411A1 Feuchtmittel-Recyclingsystem für kommerzielle Drucker Fountain solution recycling system for commercial printers |
| 11/04/2004 | CA2522087A1 Method for handling waste material generated in a metallurgical process |
| 11/03/2004 | EP1204607B1 Method and arrangement for purification of water |
| 11/03/2004 | EP1183212A4 Reverse osmosis system with biological contamination prevention |
| 11/03/2004 | CN1543440A Medical grade water production system |
| 11/03/2004 | CN1541957A Anaerobic treatment - aerobic treatment - reclamation method for treating flax degumming sewage |
| 11/03/2004 | CN1541956A Integrative processing plant for high concentration organic wasted water |
| 11/03/2004 | CN1541955A Recovery and utilization method for copper bearing spent acid solution from sodium saccharin production process |
| 11/03/2004 | CN1173892C Electrode holder for sewage |
| 11/03/2004 | CN1173889C Method and device for production of pure water |
| 11/02/2004 | US6812645 Inductively powered lamp assembly |
| 11/02/2004 | US6811705 Wastewater treatment system |
| 11/02/2004 | US6811691 Point-of-use water treatment system |
| 10/28/2004 | WO2004092079A1 Apparatus and method for the treatment of waste |
| 10/28/2004 | US20040211713 Multifunctional pure water maker |
| 10/28/2004 | DE10356681A1 Conversion of ground water into clean drinking water, by the oxidizing of dissolved metal compounds and the separation of microbes, uses a pipe reactor with a recirculating flow of active sludge and a membrane filter |
| 10/27/2004 | EP1470849A2 Water purifying apparatus and method for purifying water |
| 10/27/2004 | EP1470084A1 Method for the treatment of industrial effluent containing organic pollutants |
| 10/27/2004 | EP1470080A1 Apparatus and method for separating and filtering particles and organisms from flowing liquids |
| 10/27/2004 | EP1187638B1 Shower head provided with an ultraviolet lamp |
| 10/27/2004 | CN2651242Y 污水净化器 Water purifier |
| 10/27/2004 | CN1539769A Method for treating urban sewage through denitrifying process for phophorous removal and defluorination in biomembrane system in sequential batch mode |
| 10/27/2004 | CN1539768A Method for treating urban sewage through denitrifying process for phophorous removal and defluorination |
| 10/27/2004 | CN1539767A Membrane treatment system for separating virus |
| 10/27/2004 | CN1539766A Method for treating wastewater from industry of spinning acrylics thrugh two steps wet processes by using sodium thiocyanate as solvent |
| 10/27/2004 | CN1539765A Method for processing water in middle stage of paper making after biochemistry treatment in second phase |
| 10/27/2004 | CN1539764A Method for treating sewage from industries of blanch or dye and paper making |
| 10/27/2004 | CN1539750A Enclosure piece of filter |
| 10/27/2004 | CN1173014C Technology and equipment for purifying process water |
| 10/27/2004 | CN1172864C Leftover processing process and apparatus for sweet potato after rpoducing starch |
| 10/27/2004 | CN1172863C Method for purifying water in depth by using ozone photocatalysis biological activity carbon |
| 10/27/2004 | CN1172862C Method for controlling and resource recovering waste water from production of phenylhydrazine |
| 10/27/2004 | CN1172861C Treating method of polluted or nutritive water |
| 10/21/2004 | US20040206681 Mobile desalination plants and systems, and methods for producing desalinated water |
| 10/21/2004 | DE10259916A1 Kläreinrichtung zur biologischen Reinigung von Wasser Clarifier for biological treatment of water |
| 10/20/2004 | EP1468964A1 Method of generating fresh water and fresh-water generator |
| 10/20/2004 | EP1467953A1 Water purification system |
| 10/20/2004 | EP1467952A1 System for purifying water and method for dispensing purified water |
| 10/20/2004 | CN2649584Y Fine purifying magnetic filtering device for sewage treatment |
| 10/20/2004 | CN1537817A Treatment method for treated water containing organic and nitrides |
| 10/20/2004 | CN1537816A Treatment of waste water in producing isophthalic acid dicarbomethoxy-5-sodium sulphonate and its resource utilization method |
| 10/20/2004 | CN1171813C Combined treating process and equipment under background of circulating water leakage |
| 10/20/2004 | CN1171812C Treatment method of waste water from cleaning machinery parts |
| 10/20/2004 | CN1171811C Pretreatment process of alcoholic gas field sewage |
| 10/19/2004 | US6806649 Starter assembly for a gas discharge lamp |
| 10/19/2004 | US6806081 Methods and organisms for concentrating and recovering metals and minerals from aqueous media |
| 10/14/2004 | WO2004087584A1 System and method for the treatment of wastewater using plants |
| 10/14/2004 | WO2004087282A2 Grease removal system |
| 10/14/2004 | WO2004063098A9 Pulsed electric field sanitization system and system components |
| 10/14/2004 | US20040200779 Use of chlorine dioxide and ozone for control of disinfection by-products in water supplies |
| 10/14/2004 | DE202004012686U1 Sterilizing apparatus for water has UV lamp built into filter, water tank, filter and lamp forming pre-assembled unit |
| 10/13/2004 | EP1466870A1 Process and installation for the treatment of animal wastes |
| 10/13/2004 | EP1365848A4 Combined filter manifold and shut-off valve for a water purification system |
| 10/13/2004 | EP1106237B1 Method of treating waste waters from a flue gas desulphuriser |
| 10/13/2004 | CN1537080A Free-atom aqueous solution producing apparatus, free-atom aqueous solution producing method, and free-atom aqueous solution |
| 10/13/2004 | CN1535927A Domestic waste water recovery, treatment and reutilization system |
| 10/13/2004 | CN1170784C Dry nitrilon waste water treating process |
| 10/13/2004 | CN1170783C Domestic mid-water reuse device |
| 10/13/2004 | CN1170782C Microcomputer monitored pipe water-purifying machine |
| 10/13/2004 | CN1170781C Method and device for treating fluid liquid containing a volatile fraction |
| 10/12/2004 | US6802984 Poultry processing water recovery and re-use process |
| 10/12/2004 | US6802981 Aeration with air and ozone, treatment with coagulants, filtering; electric discharges applied across a water stream |
| 10/12/2004 | US6802976 Organic sulfur reduction in wastewater |
| 10/08/2004 | CA2463397A1 Portable water purifier |
| 10/07/2004 | WO2004085579A2 Method and apparatus for refining biodiesel |
| 10/07/2004 | WO2004085316A2 Two phase anaerobic organic matter treatment and system |
| 10/07/2004 | WO2004045756A3 Apparatus and method for photocatalytic purification and disinfection of fluids |
| 10/07/2004 | US20040195189 Method and device for decontaminating waters which are loaded wiith organic halogen compounds (halogenated hydrocarbons) |
| 10/07/2004 | US20040195186 Grease removal system |
| 10/07/2004 | US20040195112 Process for extracting and recovering metals from aqueous solutions |
| 10/07/2004 | DE202004009347U1 Fine filtration assembly, for water, has an alternating compression/expansion action on the coarse and fine filters to clear them of separated particles and prevent clogging |
| 10/07/2004 | CA2515816A1 Method and apparatus for refining biodiesel |
| 10/06/2004 | CN2646143Y Water treatment equipment special for electric water boiler |
| 10/06/2004 | CN1533992A High concentration oxganic effluent treatment composite process and its equipment |
| 10/06/2004 | CN1533991A Power generating heat supplying clean production system using city sewage and garbage resources |
| 10/06/2004 | CN1169736C System and process for preparing superpure drinking water |
| 10/06/2004 | CN1169735C Treating method of metacresol production effluent |
| 10/06/2004 | CN1169734C Pre-treating method of metacresol production effluent |
| 10/05/2004 | US6800260 Processes for treating iron-containing waste streams |
| 10/05/2004 | US6800199 Water purifier |
| 09/30/2004 | WO2004083132A1 Method and system for the treatment of liquid effluents containing pollutants in a suspension |
| 09/30/2004 | WO2004083126A1 Water purification system |
| 09/30/2004 | WO2004083125A2 Method and hybrid reactor for processing residual wastes |
| 09/30/2004 | US20040192533 Centrifugal separators |
| 09/30/2004 | US20040188348 Metal containing waste water treatment method and metal containing waste water treatment equipment |
| 09/30/2004 | US20040188337 Fluid treatment system |
| 09/30/2004 | CA2519384A1 Method and hybrid reactor for processing residual wastes |
| 09/30/2004 | CA2515788A1 Water purification system |
| 09/29/2004 | EP1395138B1 Reclosable fastener assembly with slider closed position indicator |
| 09/29/2004 | CN2644424Y Transportable water-treating equipment |
| 09/29/2004 | CN1532154A Waste water treating technology for glass fiber industry |
| 09/29/2004 | CN1168674C Microoganism control of point-of-use potable water source |
| 09/29/2004 | CN1168673C Appts. and method arranged to provide controllable water treatment customized to conditions of water supplied to beverage dispenser |
| 09/29/2004 | CN1168520C Method for removing inpurity from fluid |
| 09/28/2004 | US6797195 Method for recovering and separating metals from waste streams |