| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 07/05/2000 | EP1016633A1 Process for the treatment of waste water containing heavy metals |
| 07/05/2000 | EP1015389A1 Oxygenated water cooler |
| 07/05/2000 | EP1015090A1 Flowmeter system useable with water treatment device |
| 07/05/2000 | CN2386044Y Water quality purifying device |
| 07/05/2000 | CN1259107A Method of disinfecting water and food stuff preservation with iodine species |
| 07/05/2000 | CN1054030C Technology for extracting protein from starch waste water |
| 07/04/2000 | US6083670 Process and equipment for rejuvenation treatment of photoresist development waste |
| 07/04/2000 | US6083387 Apparatus for the disinfection of fluids |
| 07/04/2000 | US6083386 Holding waste water; circulation |
| 07/04/2000 | US6083382 Water desalination system |
| 06/29/2000 | WO2000037366A1 Method and installation for sanitizing surface water |
| 06/29/2000 | DE19860568A1 Verfahren und Anlage zur Sanierung von Oberflächengewässern Method and apparatus for improvement of surface waters |
| 06/28/2000 | EP1012122A1 Method for treating alkaline waste water |
| 06/28/2000 | CN1258265A System for recovering waste water |
| 06/27/2000 | US6080314 Zeolite bed leach septic system and method for wastewater treatment |
| 06/27/2000 | US6080313 Point-of-use water purification system with a cascade ion exchange option |
| 06/27/2000 | US6080306 Hydrogen sulfide removal apparatus |
| 06/27/2000 | CA2064464C Treatment method for emulsified petroleum wastes |
| 06/22/2000 | WO2000035813A1 Microorganism control of point-of-use potable water sources |
| 06/22/2000 | CA2355769A1 Microorganism control of point-of-use potable water sources |
| 06/21/2000 | EP1010669A1 Method of treating waste water to remove harmful ion by coagulating sedimentation |
| 06/21/2000 | CN1257042A Technology for treating industrial waste water |
| 06/20/2000 | US6077431 Process for decomposition and removal of dioxins contained in sludge |
| 06/20/2000 | US6076811 Water charging machine |
| 06/20/2000 | US6076364 Ship with snow making capabilities utilizing seawater |
| 06/14/2000 | EP1008561A2 Calcium hardness reducing technology for recycled water of papermill |
| 06/14/2000 | EP1008559A1 Method of treating animal waste |
| 06/14/2000 | EP0800483B1 Method for treating waste water sludge |
| 06/14/2000 | CN1053431C Process and device for treatment of waste water |
| 06/13/2000 | US6074565 Beverage storage and dispensing container |
| 06/13/2000 | US6074562 Hydrogen sulfide removal methods |
| 06/08/2000 | WO2000032882A1 Method of purifying sewage |
| 06/08/2000 | CA2350990A1 Method of purifying sewage |
| 06/08/2000 | CA2291507A1 Calcium hardness reducing technology for recycled water of papermill |
| 06/07/2000 | EP1005594A1 Apparatus for the treatment of rain water |
| 06/07/2000 | CN1053166C Electrolytic water producing appts. |
| 06/06/2000 | USH1852 Waste treatment of metal plating solutions |
| 06/06/2000 | US6071473 Water sterilization system incorporating ultrasonic device |
| 06/06/2000 | US6071413 Process for removing organic and inorganic contaminants from phenolic stripped sour water employing reverse omosis |
| 06/06/2000 | US6071407 Magnetic separation |
| 06/06/2000 | US6071383 Distillator |
| 06/02/2000 | WO2000030982A1 Method of treating liquid, liquid treatment apparatus, and liquid treatment system |
| 06/02/2000 | CA2316160A1 Liquid treating process and apparatus, as well as liquid treating system |
| 05/31/2000 | DE10000345A1 Water treatment process, especially for improving biological and therapeutic quality of drinking and bathing water, comprises magnetic purification and information transmission through the water |
| 05/31/2000 | CN1255108A Method for treating waste water, especially from and malt houses and breweries |
| 05/24/2000 | CN1253920A Domestic sewage treatment method |
| 05/24/2000 | CN1253919A Method for removing organit sludge from water-covered soil substratum |
| 05/24/2000 | CN1253912A Production process of pharmaceutic water and its equipment |
| 05/23/2000 | CA2172711C Bottle water disinfection system |
| 05/18/2000 | WO2000028553A2 Method for disposing of metal cations |
| 05/18/2000 | WO2000027762A1 In-transit water treatment system |
| 05/18/2000 | CA2350206A1 Method for disposing of metal cations |
| 05/17/2000 | EP1000903A2 Process for the removal of heavy metals from aqueous streams and system therefor |
| 05/17/2000 | CN1253535A Removal of hydrocarbons, mercury and arsenic from oil-field produced water |
| 05/16/2000 | US6063280 Biodegradation of methanesulfonic acid |
| 05/16/2000 | US6063271 Portable waste water treatment plant |
| 05/11/2000 | WO2000026145A1 Clarifier and water purification and clarification plant |
| 05/11/2000 | WO2000026142A1 Influent water treatment for textile dye processes |
| 05/11/2000 | WO2000025887A1 Water treatment device with liquid level control |
| 05/11/2000 | DE19851345A1 Decontamination of water, sewage, soil, sediment and slurry, giving phosphate useful as fertilizer |
| 05/10/2000 | CN1052212C Supersonic magnetizing water treating apparatus |
| 05/10/2000 | CN1052211C Method for treatment of waste water containing pentaerythritol |
| 05/09/2000 | US6059941 Apparatus for generating a sterilizing solution |
| 05/09/2000 | US6058718 Portable, potable water recovery and dispensing apparatus |
| 05/09/2000 | CA2253697A1 Water purifier |
| 05/09/2000 | CA2139863C Microbial mediated method for soil and water treatment |
| 05/04/2000 | WO2000024683A1 Multi-stage engine coolant recycling apparatus and process |
| 05/04/2000 | WO2000024674A1 Method for reducing metal ion concentration in brine solution |
| 05/03/2000 | EP0871591B1 Filtration tank and means for subsequent purification of waste water |
| 05/02/2000 | US6056878 Method and apparatus for reducing scaling in electrodeionization systems and for improving efficiency thereof |
| 05/02/2000 | US6056876 Method and apparatus for wastewater treatment |
| 05/02/2000 | US6056275 Device for introducing gas into liquids |
| 05/02/2000 | CA2254274A1 Methods of improving textile dye consistency through influent water treatment |
| 04/27/2000 | WO2000023384A1 Bottled water cooler with built-in oxygen generator and oxygen injection system |
| 04/27/2000 | WO2000023382A1 Method and apparatus for preventing scaling in electrodeionization units |
| 04/20/2000 | WO1999057066A8 Method for the intensive desalination of water containing non-dissolved silicon |
| 04/19/2000 | EP0877721B1 Method for treating aqueous liquid effluents containing organic and inorganic materials to enable recycling thereof |
| 04/19/2000 | CN1251080A System for purifying domestic household effluent |
| 04/18/2000 | US6051145 Method for handling an effluent in a hydrothermal process |
| 04/18/2000 | US6051140 Directing prefiltered water through a polyiodinate resin to add iodine disinfectant throughout water, then flowing water through elongated residence tube dependent on volumetric flow rate, postfiltering to remove disinfectant from potable water |
| 04/18/2000 | US6051137 Sewage dewatering process and equipment |
| 04/18/2000 | CA2035274C A wastewater treatment mechanism |
| 04/13/2000 | WO2000020343A1 System and method for ozonating water for animal houses |
| 04/13/2000 | WO2000020341A1 Method for treating metal contaminated water |
| 04/13/2000 | WO2000020340A1 Water treatment apparatus by filtering and irradiation |
| 04/13/2000 | WO2000020093A1 Fluid filtration unit |
| 04/13/2000 | WO2000019811A1 Methods and organisms for concentrating and recovering metals and minerals from aqueous media |
| 04/13/2000 | WO2000001622A3 Method and installation for treating waste water from oil seed and cereal processing |
| 04/13/2000 | CA2346792A1 Fluid filtration unit |
| 04/13/2000 | CA2346107A1 Method for treating metal contaminated water |
| 04/12/2000 | EP0991594A1 Method and device for sewage treatment |
| 04/12/2000 | EP0891300B1 Method of treating drinking water for consumption |
| 04/12/2000 | CN1250428A Treatment of effluent streams containing organic acids |
| 04/11/2000 | US6048452 Waste treatment device and method employing the same |
| 04/06/2000 | WO2000002819A9 Ion exchange removal of metal ions from wastewater |
| 04/05/2000 | EP0990622A2 Process and device for biological waste water purification |
| 04/05/2000 | CN2372314Y Oxygen-enriched water purifier |
| 03/30/2000 | WO2000017108A1 High temperature ultra-pure water production apparatus and liquid medicine preparation apparatus equipped with the production apparatus |
| 03/30/2000 | WO2000017107A1 Apparatus for removing residual cleaning chemicals from water |
| 03/30/2000 | DE19844381A1 Highly symmetrical, highly functional polymers obtained from vinyl cyclopropanes and useful as dental materials, coatings, complex-formers in metal salt precipitation or as catalysts |