| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 04/11/2001 | CN1290660A Fully automatic water purifying and mineralizing device |
| 04/11/2001 | CN1290659A Treating system for waste water |
| 04/10/2001 | US6214241 Using hypohalogenous acid |
| 04/10/2001 | US6214233 Process for simultaneous oxidation of cyanide and recovery of heavy metals from waste water |
| 04/05/2001 | WO2001023819A1 Refrigerator-mounted water filtration apparatus |
| 04/05/2001 | WO2001023307A1 Method and apparatus for multistage liquid filtration |
| 04/05/2001 | DE19947846A1 Treatment of colloidal waste liquor, e.g. from industrial processing of (animal) fat, involves adding solid, drying in heat exchanger, removing steam in flash evaporator and separating fat from solid in decanter |
| 04/04/2001 | EP1087911A1 Method for precipitating or flocculating substances out of solutions |
| 04/04/2001 | CN2425922Y Fully automatic multi-function water-purifying machine |
| 04/04/2001 | CN2425921Y Running water purifier |
| 04/03/2001 | US6209337 Water collection and purification system |
| 04/03/2001 | CA2160007C Process and device for processing and/or dewatering sludge liquor from waste water tanks, in particular small sewerage purification plants |
| 03/29/2001 | WO2001021902A1 Sterilizing device and method for stool |
| 03/29/2001 | WO2001021537A1 Method for purification of water which has been used for vehicle wash |
| 03/28/2001 | EP1086929A1 Process for recycling water in a at least partially closed water cycle |
| 03/28/2001 | EP1086046A1 Water treatment apparatus |
| 03/27/2001 | US6207065 Liquid waste generated aboard maritime vessel separated into oily and non-oily components for separate treatment to obtain flow streams, those having waste content reduced by treatment are discharged overboard, concentrated wastes are incinerated |
| 03/27/2001 | US6207062 Comprising separation of a liquid phase and of a solid phase dispersed in liquid phase and adding chemical conditioning reagents and optionally of antifoaming agents, and injecting carbon dioxide |
| 03/27/2001 | US6207047 Wastewater treatment system |
| 03/27/2001 | CA2181166C Process for the treatment of metal-containing water and recovery of metals therefrom |
| 03/22/2001 | WO2001019957A2 System and method of controlling microorganism and biofilms |
| 03/22/2001 | WO2001019734A1 Water treatment apparatus |
| 03/22/2001 | WO2000006499A9 Point-of-use water treatment system |
| 03/21/2001 | EP1084082A2 Method for cleaning waste water from the production of agar-agar |
| 03/21/2001 | CN1287978A Full automatic water mineralization apparatus |
| 03/21/2001 | CN1287977A Full automatic water purification apparatus |
| 03/21/2001 | CN1063407C Method for treatment for waste acid liquid containing copper in the production of gluside and sodium saccharin |
| 03/20/2001 | US6203705 Adjusting ph of waste water to be acidic; filtering through membrane; feeding permeate through ion exchange column; feeding acidic waste water thorugh concentration tank; recycling solids; washing slugde; filtration; recycling |
| 03/20/2001 | US6203700 Process for treating metal-containing acid water |
| 03/20/2001 | CA2056889C A method of processing the wastewater-solids mixture that results from the production of paper and the use of this solids mixture |
| 03/15/2001 | WO2001017660A2 System filter for pond water or the like |
| 03/15/2001 | DE19942188A1 Systemfilter für Teichwasser o. dgl. System filter for pond water o. The like. |
| 03/15/2001 | DE10040416A1 Waste water treatment plant removes phosphor compounds by coagulation |
| 03/15/2001 | CA2282223A1 Process for treating waste water |
| 03/14/2001 | EP1082268A1 Ultraviolet treatment for aqueous liquids |
| 03/14/2001 | CN2423282Y 水净化器 Water purifiers |
| 03/14/2001 | CN2423281Y Water purifier cleaned without dismounting |
| 03/14/2001 | CN2423280Y Combination dismounting water purifier |
| 03/14/2001 | CN1287540A Method and installation for treating waste water from oil seed and cereal processing |
| 03/14/2001 | CN1287102A Intermittent sewage feeding and intermittent aerobic active sludge sewage treatment process |
| 03/14/2001 | CN1063158C Composite circulating water treating system |
| 03/13/2001 | US6200473 In-transit water treatment system |
| 03/08/2001 | WO2001016036A2 Water treatment systems and methods |
| 03/08/2001 | WO2001016035A2 A portable waste liquid treatment container |
| 03/08/2001 | WO2001016033A1 Purified, alkaline water rich in minerals and process for preparing the same |
| 03/08/2001 | WO2001016031A2 Method of producing hydroxyl radicals for chemical reactions |
| 03/08/2001 | WO2001016028A1 Cooling apparatus for making drinkable water |
| 03/08/2001 | CA2384095A1 Water treatment systems and methods |
| 03/08/2001 | CA2383513A1 Method of producing hydroxyl radicals for chemical reactions |
| 03/07/2001 | EP1081101A1 Process and device for drying sewage sludge |
| 03/07/2001 | EP1081096A2 Electrolytic reduced water, anti-cancer drug, and producing method and apparatus thereof |
| 03/07/2001 | EP1080045A1 Method for treating fluid liquid containing a volatile fraction |
| 03/07/2001 | EP1080042A1 Method for treating waters, soils, sediments and/or sludges |
| 03/07/2001 | EP1080041A1 Use of polymer dispersions for paper mill color removal |
| 03/07/2001 | CN1286668A Method of treating liquid, liquid treatment apparatus, and liquid treatment system |
| 03/07/2001 | CN1286225A Sewage treating device and coalescence settling device |
| 03/07/2001 | CN1286224A Activated water and its preparing process |
| 03/07/2001 | CN1286221A Sewage treating device |
| 03/06/2001 | US6197203 Cleaning a membrane filter in a filtration tank into which air is blown by deactivating algae and spores, decomposing them with microorganisms aerating and filtrating; antifouling agents; swimming pools; water and sewage systems; rivers |
| 03/06/2001 | US6197196 Treatment of water |
| 03/06/2001 | US6197189 Oxygenated water cooler |
| 03/01/2001 | DE10040417A1 Below-ground waste water treatment unit removing phosphorus, includes sacrificial iron or aluminum electrodes providing electrolytic treatment to waste water |
| 02/28/2001 | EP1078887A1 A process for treating aqueous waste containing copper and copper CMP particles |
| 02/28/2001 | CN1285766A Bacteriostalic filter cartridge |
| 02/28/2001 | CN1285324A Automatic controller for sewage treatment process |
| 02/28/2001 | CN1285323A Silk-reedling by-product waste water treatment and comprehensive utilization method |
| 02/28/2001 | CN1062543C Green organic fertilizer and preparation method thereof |
| 02/27/2001 | US6193894 Methods and apparatus for disinfecting and sterilizing water in water dispensers using ultraviolet radiation |
| 02/27/2001 | US6193872 Treating aqueous waste stream from chemical production plant which stream contains at least one alkali metal carboxylate containing at least 3 carbon atoms to produce solution of alkali metal hydroxide for recycle to production plant |
| 02/22/2001 | WO2001013053A1 Water producing and dispensing machine |
| 02/22/2001 | WO2001012559A1 On premise water treatment system and method |
| 02/22/2001 | WO2001012558A1 System and method for treating water circulating in open-circuit cooling systems |
| 02/22/2001 | WO2001012302A1 Process for the purification of wash water from the production of aromatic acids |
| 02/22/2001 | DE19937989A1 Mobile plant treating industrial oil separator contents, minimizing volume of special waste and transport costs, separates, purifies and filters water for return, whilst removing sand, oil and sludges only |
| 02/22/2001 | DE19932992A1 Recycled service water supply for buildings includes separate circuit, pump, filter tank and overflow, with collection from all forms of washing equipment |
| 02/22/2001 | CA2381309A1 On premise water treatment system and method |
| 02/21/2001 | CN2420273Y Desalination and purifying device for sea water |
| 02/21/2001 | CN1062243C Metallic ion-linear condensed state magnetized mineral-dissolving water and its preparation method |
| 02/20/2001 | US6190561 Ion exchanging |
| 02/20/2001 | US6190549 Oxygenated water cooler |
| 02/20/2001 | US6190531 Electrolysis in presence of metal oxo complex catalyst; extraction |
| 02/15/2001 | WO2001010786A1 An iron powder and sand filtration process for treatment of water contaminated with heavy metals and organic compounds |
| 02/15/2001 | WO2001010785A1 Process for recovering organic hydroxides from waste solutions |
| 02/15/2001 | WO2001010562A1 Centrifugal pressurized separators and methods of controlling same |
| 02/15/2001 | DE19938615A1 Anlage und Verfahren zur Behandlung von Kreislaufwasser offener Umlaufkühlsysteme System and method for the treatment of circulatory water of open recirculating cooling systems |
| 02/15/2001 | DE19938248A1 Purification of waste water predominantly containing light materials such as fats and oils |
| 02/15/2001 | CA2380843A1 An iron powder and sand filtration process for treatment of water contaminated with heavy metals and organic compounds |
| 02/15/2001 | CA2380839A1 Process for recovering organic hydroxides from waste solutions |
| 02/15/2001 | CA2378344A1 Centrifugal pressurized separators and methods of controlling same |
| 02/14/2001 | EP1076040A1 Process to minimise the aox-compounds in waste waters |
| 02/14/2001 | EP1075868A2 Electrodeionization apparatus and pure water producing apparatus |
| 02/14/2001 | CN2418808Y Thermos bottle |
| 02/14/2001 | CN1284048A Appts. and method arranged to provide controll able water treatment customized to conditions of water supplied to beverage dispenser |
| 02/14/2001 | CN1061949C Comprehensive effluent disposal tech for wet spinning acrylic fibers industry |
| 02/13/2001 | US6187519 Process and equipment for recovering developer from photoresist development waste and reusing it |
| 02/13/2001 | US6187206 Thermal plasma reactor and wastewater treatment method |
| 02/13/2001 | US6187201 System for producing ultra-pure water widely used in semiconductor plants, nuclear power plants and pharmaceutical plants which has an electrodialysis unit and a reverse osmosis unit |
| 02/13/2001 | US6187197 Employs a combination of filtration, dissolved air floatation, centrifugation (hydrocyclone separation), semi-permeable nanofiltration, reverse osmosis, and continuous deionization for separating ethylene glycol, with or without propylene |
| 02/08/2001 | WO2001009048A1 Method for plant water treatment for at least one partially closed water circuit |
| 02/08/2001 | WO2001009045A1 Hybrid chemical and biological process for decontaminating sludge from municipal sewage |