| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 08/07/2001 | US6270678 Salt formation with mineral acid; settling, recovering, flocculation, filtration |
| 08/02/2001 | WO2001055035A2 Device for treating water |
| 08/02/2001 | WO2001055033A2 Water and wastewater treatment system and process for contaminant removal |
| 08/02/2001 | WO2001054786A2 In-line device and method for removing contaminants from a fluid |
| 08/02/2001 | US20010011376 Methods and organisms for concentrating and recovering metals and minerals from aqueous media |
| 08/02/2001 | DE10004155A1 Ein Verfahren zur Karkadenspülung mit Frischwasser-Rückgewinnung mittels Membrantechnik und Einsatz von regenerativ erzeugtem Strom A method for Karkadenspülung with fresh water recovery using membrane technology and the use of renewable electricity |
| 08/01/2001 | CN2440816Y Electric water purified activator |
| 08/01/2001 | CN1305962A Photoxidizing water purifier with biological membrane |
| 08/01/2001 | CN1069091C Process for purifying drinking water |
| 07/31/2001 | US6267885 Liquid sterilization apparatus |
| 07/31/2001 | US6267871 Apparatus and process for recovering metals from aqueous solutions |
| 07/26/2001 | WO2001053212A1 Method and device for sustaining a clean water supply |
| 07/26/2001 | DE19962791A1 Verfahren und Vorrichtung zum Reinigen von Rohwasser Method and apparatus for purifying raw water |
| 07/26/2001 | DE10050489A1 Electrical decontamination and sterilization of water employs low voltage signal generator, with automatic adjustment as a function of water conductivity |
| 07/26/2001 | DE10001610A1 Unit treating waste water in small boats for discharge at sea in compliance with international regulations, includes separation and conversion regions with comminuter and pump |
| 07/25/2001 | CN1304888A Full-automatic cleaning pool |
| 07/25/2001 | CN1068856C Waste water treating device |
| 07/25/2001 | CN1068855C Sewage treating device |
| 07/24/2001 | US6264832 Apparatus for the treatment of rain water |
| 07/24/2001 | US6264830 On premise water treatment system and method |
| 07/19/2001 | WO2001050875A1 Beverage brewing system and method for using same |
| 07/19/2001 | DE10000874A1 Emergency cross-flow water filter is contained within portable case and electrically powered by solar cells or wind generator |
| 07/19/2001 | DE10000258A1 Assembly for treating car wash water effluent includes plastic basket containing charge of biological substrate for microbes in holding tank |
| 07/19/2001 | CA2396389A1 Beverage brewing system and method for using same |
| 07/18/2001 | CN2439442Y Full automatic purifying and mineralizing water supply means |
| 07/18/2001 | CN1304383A Water treatment apparatus |
| 07/18/2001 | CN1304328A Method for flue gas desulfurization and flue gas desulfurization system |
| 07/17/2001 | US6261464 Portable water disinfection system |
| 07/17/2001 | US6260621 Forcing particles into oil or gas formation under pressure; mixing with fatty ester and lower alkyl glycol ether; cleaning |
| 07/17/2001 | US6260620 Mixing with fatty acid alkyl ester and lower alkyl glycol ether; agitation |
| 07/12/2001 | WO2001049612A1 Water purification filter |
| 07/12/2001 | US20010007314 Bubbling gas |
| 07/12/2001 | US20010007311 Using calcium carbonate |
| 07/11/2001 | CN1303354A Ion exchange removal of metal ions from wastewater |
| 07/11/2001 | CN1303352A Removing metal ions from wastewater |
| 07/11/2001 | CN1302772A Cleaning pool |
| 07/11/2001 | CN1302771A Full-automatic cleaning pool |
| 07/11/2001 | CN1302769A Biochemical method for synchronously treating discharged sewage |
| 07/10/2001 | US6258279 Removing color bodies including lignins, lignin degradation products, or humic acids from paper mill waste water by adding hydrophilic cationic dispersion polymer |
| 07/10/2001 | US6258274 Method for reducing sludge within a river or the like |
| 07/10/2001 | US6258265 Water purifying apparatus having a plurality of purifying stages and modular ion exchange media containers |
| 07/10/2001 | US6258225 Device for producing ion water |
| 07/05/2001 | WO2001047816A2 Method and device for purifying untreated water |
| 07/04/2001 | EP1112232A1 Method of treating waste water |
| 07/04/2001 | EP1112230A1 Method and apparatus for purification and disinfection of liquids |
| 07/04/2001 | CN2437672Y Sewage treating device |
| 07/04/2001 | CN1301673A Vertical sectional integrated waste water biochemical treatment method and device |
| 07/04/2001 | CN1301672A Physically activated drinking water and its producing method |
| 07/04/2001 | CN1301671A Purifying technology for micro polluted water source |
| 07/03/2001 | US6254783 Adjusting ph of aqueous solution so that hydroxide precipitates of metal species in its highest valency state are insoluble; passing aqueous solution through cell to raise valence to form insoluble hydroxide; removing precipitate |
| 07/03/2001 | US6254782 Method for recovering and separating metals from waste streams |
| 07/03/2001 | US6254779 Treatment of effluent streams containing organic acids |
| 07/03/2001 | US6253964 Remotely actuable flushing system |
| 06/28/2001 | US20010004962 Water treatment device |
| 06/28/2001 | DE19961583A1 Water processing appts has a number of stages in sequence in a housing of domestic appliance dimensions to give a supply of safe and potable water unaffected by dwell times or extracted vols |
| 06/27/2001 | EP0970020B1 Process for treating wastewater |
| 06/27/2001 | EP0862539B1 Method for pretreating raw water |
| 06/27/2001 | CN1301237A Method for treating waters, soils, sediments and/or sludges |
| 06/27/2001 | CN1300719A Burn cracking process and equipment for treating high-concentration organic sewage |
| 06/27/2001 | CN1067660C Production of rich oxygen content drinking water |
| 06/26/2001 | US6251657 Culturing microorganism in aqueous medium of benzene and dissolved nitrate; efficient treatment of wastewater, groundwater, or slurry |
| 06/26/2001 | US6251289 Treatment of contaminated liquids with oxidizing gases and liquids |
| 06/26/2001 | US6251172 Portable water recovery and dispensing apparatus |
| 06/21/2001 | WO2001044120A2 On premise water treatment system with temperature control water release and method |
| 06/21/2001 | US20010004063 Includes an elecrolysis and electrocoagulation apparatus connected to the wastewater inlet of the reaction tank and a mass transfer accelerator that dissolves self-produced oxygen, hydrogen and/or hypochlorous acid, sedimentation tank |
| 06/20/2001 | EP1108683A2 Water treatment device |
| 06/20/2001 | EP1107934A1 Ion exchange removal of metal ions from wastewater |
| 06/20/2001 | CN2435391Y Vacuum filtering water purifier |
| 06/20/2001 | CN1299785A Treatment of waste water from washing cylindrical liquid container |
| 06/20/2001 | CN1299784A Treatment method of copper containing waste liquid from alkali etching of printed circuit board |
| 06/20/2001 | CN1299782A Water treatment apparatus |
| 06/20/2001 | CN1067350C Method for treating waste liquid of alcohol by using hot fume from boiler |
| 06/19/2001 | US6248243 Solids monitoring filter meter |
| 06/19/2001 | US6248242 Bulk water supply tank truck for delivery of potable water to a storage tank at a customer's site and being equipped with a pumping system and an ozone generator to disinfect water at point of delivery |
| 06/19/2001 | US6248241 Process for the removal of dissolved metals and/or metalloids from an aqueous medium containing same and having a high content of salt |
| 06/14/2001 | WO2001042144A2 Device and method for treating water with ozone generated by water electrolysis |
| 06/14/2001 | WO2001042143A2 Method and device for electrochemically disinfecting fluids |
| 06/14/2001 | WO2001041897A1 Water desalination system |
| 06/14/2001 | US20010003481 Process and equipment for recovering developer from photoresist development waste and reusing it |
| 06/14/2001 | CA2394859A1 Method and device for electrochemically disinfecting fluids |
| 06/13/2001 | EP1106259A1 Hand held shower head and filter housing |
| 06/13/2001 | EP1106237A1 Method for flue gas desulfurization and flue gas desulfurization system |
| 06/13/2001 | EP1105584A1 Water circulation |
| 06/13/2001 | EP1105350A1 Removing metal ions from wastewater |
| 06/13/2001 | EP0938454B1 Multi-chamber water purification device and method of using the same |
| 06/13/2001 | DE19958751A1 Water supply disinfected with a single reactor by simultaneous ultra-violet light and electro-chemical processes |
| 06/13/2001 | DE19952135A1 Verfahren zur Behandlung von Abwasser A method of treating waste water |
| 06/13/2001 | CN2434302Y Water treatment appts |
| 06/13/2001 | CN1298841A Process for treating waste water generated by synthesizing p(o)-nitroanisole |
| 06/13/2001 | CN1298839A Process for treating waste water containing sulfanilamide |
| 06/12/2001 | USRE37216 Water treatment cartridge and base |
| 06/12/2001 | US6245242 Cleanup of nitroaromatics-containing wastewaters |
| 06/12/2001 | US6245229 Point-of-use water treatment system |
| 06/12/2001 | US6245121 Method for treating aqueous liquid effluents containing organic and inorganic materials to enable recycling thereof |
| 06/07/2001 | WO2001040122A1 Clarification apparatus for liquid |
| 06/06/2001 | EP0874782B1 Thermal plasma reactor and wastewater treatment method |
| 06/06/2001 | CN2433253Y High turbidity water treatment equipment |
| 06/06/2001 | CN1298371A Method for treating fluid liquid containing a volatile fraction |
| 06/06/2001 | CN1298318A Chelate-foming filter, process for producing the same, and method of purifying liquid with the filter |
| 06/06/2001 | CN1297853A Automatic multifunctional ionized water producing process and equipment with single water outlet pipe |