| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
|---|
| 03/10/2004 | EP1395138A1 Reclosable fastener assembly with slider closed position indicator |
| 03/10/2004 | EP1210299B1 Method of producing hydroxyl radicals for chemical reactions |
| 03/10/2004 | CN1480413A Treating technical method for denitrogenation and dephosphorization from waste water |
| 03/10/2004 | CN1141266C Floating bed equipment for cleaning sewage |
| 03/10/2004 | CN1141265C Integrated process for treating sewage by use of wind energy and biologic float bed |
| 03/10/2004 | CN1141264C Integrated treating system and process for cleaning sewage |
| 03/10/2004 | CN1141263C Method treatment of oil-bearing waste water |
| 03/10/2004 | CN1141251C Comprehensive treatment process of producing active carbon with papermaking effuent |
| 03/05/2004 | CA2400546A1 Assembly filtering and recycling waste water of a dishwasher one or more times for saving energy and water consumption |
| 03/04/2004 | WO2004018733A2 Structure of an electrode for use in an electrolytic cell |
| 03/04/2004 | WO2004018366A1 Method and apparatus for removing hydrocarbons from water by air floatation |
| 03/04/2004 | US20040040908 Spa water circulation system |
| 03/04/2004 | CA2536815A1 Structure of an electrode for use in an electrolytic cell |
| 03/03/2004 | EP1394121A1 Process for the treatment of contaminated liquid effluents and apparatus for carrying out this process |
| 03/03/2004 | EP1392606A1 Plant and method for purification of water coming from a seulphuration kerosene plant |
| 03/03/2004 | CN2605253Y Field flexible water-purifying vehicle |
| 03/03/2004 | CN1478737A Garbage percolation liquid treatment process |
| 03/03/2004 | CN1478729A Oxygenolysis device of microscale harmful substance |
| 03/03/2004 | CN1478726A Local used type water treatment system for treatment of water |
| 03/03/2004 | CN1140677C Disintegrating system in waste pipe |
| 03/03/2004 | CN1140473C Treatment process for waste water of ecological resource |
| 03/03/2004 | CN1140472C Treatment process of ferric oxide pigment waste water |
| 03/02/2004 | US6699381 Wherein there is no deterioration or breakage of the electrodes or deformation of the plastic case due to heat; for use in swimming pools, bathtubs, pond, farming tanks, air conditioning units |
| 02/26/2004 | WO2002022506A8 Water treatment process and apparatus |
| 02/26/2004 | US20040035799 Comprises sparge gas; for treating acidflow back water, completion fluid water, produced water and rain water collected from off-shore oil drilling and production platforms |
| 02/26/2004 | US20040035798 Method and apparatus for removing contaminants from conduits and fluid columns |
| 02/26/2004 | US20040035716 A water treatment by an electrochemical process to remove nitrogen-containing compound, purification, denitrification, using a metallic or alloy conductive cathode |
| 02/25/2004 | CN1478059A Process and apparatus for treating waste water |
| 02/25/2004 | CN1477069A Oil-containing sewage continous flowing purifying method having no need of adding any chemicals and its equipment |
| 02/25/2004 | CN1477068A Multifanctional polarization filtration sterilizing equipment |
| 02/25/2004 | CN1139549C Method treating waste water from production of phenylacetic acid and reusing resource |
| 02/25/2004 | CN1139539C Method of treating naphthalene-blowing effluence and recovering resource in 2-naphthol producing process |
| 02/19/2004 | WO2004014809A2 Method and facility for treatment of sludge derived from biological water purification facilities |
| 02/19/2004 | WO2004014806A2 A combined electrochemical system for scale treatment and eradicating legionella pneumophila bacteria in water supply systems |
| 02/19/2004 | WO2003086564A3 Removal of arsenic from drinking and process water |
| 02/19/2004 | US20040031762 Ozone/uv combination for the decomposition of endocrine substances |
| 02/19/2004 | US20040031741 A storage housing comprising dry reagent in a bed and a compressor and apertures for intaking water and discharing solution; a medical equipment for preparing dialysis solution from dry powder form |
| 02/19/2004 | DE20318754U1 Elektrochemischer Ozonerzeuger The electrochemical ozone generator |
| 02/18/2004 | CN1475451A Method and device for processing liquid |
| 02/18/2004 | CN1138709C Purifying technology for micro polluted water source |
| 02/18/2004 | CN1138708C Waste water treating device |
| 02/17/2004 | US6692642 Organic slurry treatment process |
| 02/17/2004 | US6692632 Method of producing hydroxyl radicals for chemical reactions |
| 02/12/2004 | WO2004013048A2 Production of purified water and high value chemicals from salt water |
| 02/12/2004 | WO2004013045A2 Processing method for contaminated liquid effluents and device for carrying out said method |
| 02/12/2004 | WO2003068693A8 Processes for treating iron-containing waste streams |
| 02/12/2004 | US20040026335 Removal impurities from fluid; ozonization, ionization, coagulation; purification |
| 02/12/2004 | US20040026328 Method for water treatment utilizing a liquid/vacuum cyclone interface apparatus |
| 02/12/2004 | US20040026326 Liquid treatment method and apparatus |
| 02/11/2004 | EP1387815A1 Periphyton filtration pre- and post-treatment system and method |
| 02/11/2004 | CN1474785A Water purifying kits |
| 02/11/2004 | CN1473778A Method for elimination COD in water for thick oil production |
| 02/11/2004 | CN1473777A Process for producing high pressure oxygen ecological water |
| 02/11/2004 | CN1473776A Process for producing small molecular group running water by using ceramic particles as medium |
| 02/11/2004 | CN1137853C Electrolytic reduction water and its use, preparing method and device |
| 02/05/2004 | WO2004011393A1 Hog manure treatment system |
| 02/05/2004 | WO2004011378A2 Ozone purification system for water |
| 02/05/2004 | WO2004011377A2 Treatment of wastewater by biological and membrane separation technologies |
| 02/05/2004 | US20040020787 Method for producing electrolyzed water |
| 02/04/2004 | EP1386887A1 A method for producing electrolyzed water |
| 02/04/2004 | CN2602021Y Water furifier |
| 02/04/2004 | CN1473068A Method and apparatus for treatment of drinking water |
| 02/04/2004 | CN1472146A Garbage infiltration liquid treating method |
| 02/04/2004 | CN1472145A Sewage containing high concentration organics and ammonia nitrogen disposal method |
| 02/04/2004 | CN1472144A Self-extracting treating method for exhausted lye discharge from octanol synthetic system |
| 02/04/2004 | CN1137307C Method for treating process water |
| 02/04/2004 | CN1137060C Ionized water producing process with single water outlet pipe |
| 02/03/2004 | US6685890 Controlling microorganism with uv radiation |
| 02/03/2004 | US6685825 Water treatment system combining ozone injection and monitoring apparatuses |
| 02/03/2004 | US6684648 Apparatus for the production of freshwater from extremely hot and humid air |
| 01/29/2004 | WO2004009495A2 Portable compact ultra high purity water system via direct processing from city feed water |
| 01/29/2004 | US20040016706 Used to sterilize and cleanse water |
| 01/29/2004 | US20040016705 Adding additive to colloidal solution so that colloidal substances are coagulated; sucking colloidal solution through first filter so that coagulated colloids are accumulated on surface of filter to form gel membrane; filtering |
| 01/29/2004 | DE10229799A1 Verfahren zur Aufbereitung und Wiederverwendung von Grauwasser zur Spülung von Toiletten in Vakuumsystemen Process for the treatment and reuse of gray water to flush toilets in vacuum systems |
| 01/29/2004 | CA2492799A1 Portable compact ultra high purity water system via direct processing from city feed water |
| 01/28/2004 | CN1136157C Method for treating waste water from washing cylindrical liquid contrainer |
| 01/28/2004 | CN1136156C Process for treating percolate from garbage filling field |
| 01/28/2004 | CN1136033C Bacteriostalic filter cartridge |
| 01/22/2004 | WO2004007050A2 Device and system for filtering effluents for horticulture or market gardening |
| 01/21/2004 | EP1382578A1 Method for the filtration of water and a water filtration device |
| 01/21/2004 | CN1468817A Organic waste liquid treatment method and apparatus |
| 01/21/2004 | CN1468816A Catalytic oxydization and biochemical method and apparatus for treating waste water with hard-to-degrad organism |
| 01/21/2004 | CN1468815A Production process and system of piped drinking water |
| 01/21/2004 | CN1468807A Sewage treatment method and apparatus |
| 01/21/2004 | CN1135283C Water treatment equipment |
| 01/20/2004 | US6679988 Apparatus for producing USP or WFI purified water |
| 01/15/2004 | WO2004005586A1 Electrolytic method of the extraction of metals |
| 01/15/2004 | WO2004004465A1 Functional water with deodorization activity and sterilization activity against multi-drug resistent bacteria, and a preparation method thereof |
| 01/15/2004 | WO2003074428B1 Pre- and post-treatment system and method for periphyton filtration using ozone |
| 01/15/2004 | US20040007535 Water softening method and system |
| 01/15/2004 | US20040007516 Water filter assembly |
| 01/15/2004 | DE20315555U1 Vorrichtung zum Verwerten von Flüssigabfällen Apparatus for recycling of liquid waste |
| 01/15/2004 | DE10228876A1 Verfahren zur gezielten Stickstoffelimination bei Pflanzenkläranlagen oder anderen bewachsenen Bodenfilter Method for the selective removal of nitrogen in wetlands or other wetland |
| 01/14/2004 | CN2599002Y Composite sewage biological treatment device |
| 01/08/2004 | WO2004003099A1 Chelating agents |
| 01/08/2004 | WO2004002901A1 Method for the removal of contaminant metal ions from waste water |
| 01/08/2004 | WO2004002900A1 Waste water purification apparatus and waste water purification method including the regeneration of used coagulant |
| 01/08/2004 | US20040004042 Apparatus and method for increasing oxygen levels in a liquid |
| 01/08/2004 | DE10227675A1 Verfahren und Vorrichtung zum Aufbereiten von gebrauchtem Waschmittel Method and apparatus for processing of used detergent |
| 01/08/2004 | DE10225834A1 Verfahren und transportable Vorrichtung zum Reinigen von Oberflächen- und Brunnenwasser, sowie Aufbereitung desselben zu Trinkwasser Method and portable device for cleaning of surface and well water, and treatment of the same to drinking water |