| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 10/05/1999 | CA2050579C Apparatus for coagulating treatment |
| 10/02/1999 | CA2228197A1 A process to solidify and remove spilled oil on land and water |
| 10/01/1999 | CA2242192A1 Sewage purification plant |
| 09/30/1999 | WO1999049472A2 Method for managing water-chemistry |
| 09/30/1999 | WO1999048901A2 Sucrose-n-alkyl-asparaginates, production and use thereof |
| 09/30/1999 | WO1999048822A1 Method for precipitating or flocculating substances out of solutions |
| 09/30/1999 | WO1999048821A1 Method for precipitating or flocculating substances contained in solutions |
| 09/30/1999 | WO1999048820A1 Electric desalting apparatus |
| 09/30/1999 | WO1999048819A1 Treatment of waste water during phosphating |
| 09/30/1999 | WO1999048817A2 Water sanitizing system |
| 09/30/1999 | WO1999048816A1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO2 PRODUCTION |
| 09/30/1999 | WO1999048815A1 METHOD FOR PRODUCING IRON OXIDE PIGMENTS FROM WASTE ACID RESULTING FROM TiO2 PRODUCTION |
| 09/30/1999 | WO1999048814A1 Preparation and uses of mixed metal coagulants |
| 09/30/1999 | WO1999048598A1 Filter system |
| 09/30/1999 | WO1999048588A1 Stripping of contaminants from water |
| 09/30/1999 | WO1999048587A1 Twin columns for frontal chromatographic decontamination |
| 09/30/1999 | WO1999048586A1 Apparatus and method for separating oxides of heavy isotopes of hydrogen from water |
| 09/30/1999 | WO1999048584A1 Filter constructions and methods |
| 09/30/1999 | WO1999040266A3 Improvements in fluid systems |
| 09/30/1999 | DE19856840A1 Verfahren zur Abwasser-Behandlung und Behandlungsvorrichtung hierfür Process for wastewater treatment and treatment apparatus therefor |
| 09/30/1999 | DE19851088A1 Conditioning fluid medium, useful for removal of particles from water |
| 09/30/1999 | DE19814008A1 Mit Granulat füllbarer Durchflußbecher Which can be filled with granules Durchflußbecher |
| 09/30/1999 | DE19813255A1 Waste water treatment for increasing oxygen take-up in biological process |
| 09/30/1999 | DE19813058A1 Work-up of phosphating bath overflows and/or rinsing water |
| 09/30/1999 | DE19812667A1 Verfahren zur magnetischen Ionisierung und Anordnung zur Durchführung dieses Verfahrens A method for magnetic ionization and arrangement for carrying out this method |
| 09/30/1999 | DE19812605A1 Precipitating heavy metals from e.g. waste water |
| 09/30/1999 | DE19812591A1 Verfahren zur Bekämpfung pflanzenpathogener Mikroorganismen in Wasserkreisläufen von Gewächshäusern Method for controlling phytopathogenic microorganisms in water circuits of greenhouses |
| 09/30/1999 | DE19631842A1 Vorrichtung und Verfahren zur kontinuierlichen, elektrolytischen Behandlung von Trink- und Brauchwasser Apparatus and method for continuous electrolytic treatment of drinking and industrial water |
| 09/30/1999 | CA2325987A1 Apparatus and method for separating oxides of heavy isotopes of hydrogen from water |
| 09/30/1999 | CA2325396A1 Sucrose-n-alkyl-asparaginates, production and use thereof |
| 09/30/1999 | CA2324527A1 Method for reprocessing waste acid resulting from tio2 production |
| 09/30/1999 | CA2324215A1 Method for producing iron oxide pigments from waste acid resulting from tio2 production |
| 09/30/1999 | CA2237491A1 Sand filtration filtering system using ozone |
| 09/30/1999 | CA2227520A1 An active filter of composite sinterized material and process for separation of hydrophobic organic material from soil and aqueous fluids using controlled interface tensions and pore sizes |
| 09/29/1999 | EP0945408A1 Process for removing polyamine chelating agents from aqueous solutions |
| 09/29/1999 | EP0945407A1 Process for water treatment in distinct lines |
| 09/29/1999 | EP0945405A2 Solutions of peracids for stabilizing hardness, method of preparation, and their use |
| 09/29/1999 | EP0945404A2 Aqueous disinfectant, comprising performic and peracetic acid, method of preparation and use |
| 09/29/1999 | EP0945403A1 Method for controlling plant pathogenic micro-organisms in greenhouse water circuits. |
| 09/29/1999 | EP0945175A1 Method for conditioning carbon-containing adsorbents |
| 09/29/1999 | EP0944552A1 Method for removing toxic substances in water |
| 09/29/1999 | EP0944420A1 Liquid chromatography column |
| 09/29/1999 | EP0873194A4 Vortex system for separating particles from a liquid stream |
| 09/29/1999 | EP0799347B1 Separating arrangement |
| 09/29/1999 | EP0513352B1 Method of cleaning soil water |
| 09/29/1999 | CN2340782Y Automatic controller for converting counterflow of acid water and alkaline water for electrolyzed water generator |
| 09/29/1999 | CN2340773Y Water purifier |
| 09/29/1999 | CN2340772Y Ultra-oxidized water purifier |
| 09/29/1999 | CN2340768Y Oxygen inflator for drinking water |
| 09/29/1999 | CN2340767Y 流体磁化装置 Fluid magnetization device |
| 09/29/1999 | CN2340766Y Fouling discharger for ionized water generator |
| 09/29/1999 | CN2340765Y Membrane unit of ionized water generator |
| 09/29/1999 | CN2340764Y Water purifier by indigenous method |
| 09/29/1999 | CN2340763Y High performance dissolved gas releaser |
| 09/29/1999 | CN2340762Y Cooling device of water distillator |
| 09/29/1999 | CN1230161A Method of disinfecting water with iodine species |
| 09/29/1999 | CN1229870A Clean slurrying paper making tech. using grass as raw material |
| 09/29/1999 | CN1045279C Method of disposal coal mine draining sewage with compounding coagulation method |
| 09/29/1999 | CN1045278C Concentrating-burning treatment of organic lyechange |
| 09/28/1999 | US5958252 Comprising waste holding tank, solids-gas processor, aqueous holding tank, and aqueous purifier; for treating human sewage |
| 09/28/1999 | US5958251 Method of and apparatus for the purification of gases and liquids |
| 09/28/1999 | US5958248 Method of precipitating protein at the time of removal of heavy metals |
| 09/28/1999 | US5958247 Method for disposing of a solution containing an organic acid |
| 09/28/1999 | US5958245 Nanofiltration of spent, diluted, photographic fixing bath firstly in a diafiltration mode and secondly in a concentration mode to retain thiosulfate and selectively extract halide impurities |
| 09/28/1999 | US5958241 Waste treatment and minimization system |
| 09/28/1999 | US5958240 System for recycling waste water |
| 09/28/1999 | US5958238 Feeding to anerobic digestion system; converting to sulfide; circulating effluent; removing sulfide; converting sulfide to sulfur |
| 09/28/1999 | US5958232 Comprising super precise filter, pressure pump, automatic control system, membrane, pressure tank, post filter and dispenser; durability |
| 09/28/1999 | US5958229 Electrolytic disinfectant system |
| 09/28/1999 | US5958228 Comprising mineral source containing soluble mineral component; plain water supply and ultrasonic source; for preparing mineral water which contain mineral component according to user's requirements |
| 09/28/1999 | US5958213 Oil drop separator with amphoteric metal anode and three-dimensional fixed bed electrolytic tank including a power source in which polarity is reversed periodically to ionize any metal compounds, preventing clogging |
| 09/28/1999 | US5958196 For nitrate removal systems from water, as cathodes and anodes |
| 09/28/1999 | US5957339 Water filtration system |
| 09/28/1999 | US5956965 Watercooler |
| 09/25/1999 | CA2265377A1 Remotely actuable flushing system, including optional pasteurizing water supply |
| 09/23/1999 | WO1999047458A1 Method and apparatus for treating waste water |
| 09/23/1999 | WO1999047457A1 Use of tetraphenylborate for extraction of ammonium ions and amines from water |
| 09/23/1999 | WO1999047456A1 Method of water purification |
| 09/23/1999 | WO1999047233A1 Improvements to solid-liquid separating equipment in particular for biological purification of waste water |
| 09/23/1999 | WO1999047230A1 Treatment of liquids |
| 09/23/1999 | WO1999047229A1 Liquid chemical delivery system |
| 09/23/1999 | WO1999047226A1 Bacteria limiting water treatment and storage systems and methods |
| 09/23/1999 | WO1999047190A1 Hemostatic system and components for extracorporeal circuit |
| 09/23/1999 | WO1999034034A9 Portable device for deionizing liquids |
| 09/23/1999 | DE19812801A1 Lime scale deposits are automatically cleaned from cathodes especially in electrolytic water disinfection and treatment |
| 09/23/1999 | DE19812543A1 Verfahren zum Konditionieren von kohlenstoffhaltigen Adsorbentien A method for conditioning of carbonaceous adsorbents |
| 09/23/1999 | DE19812262A1 Production of gypsum and iron oxide pigments from dilute acid formed in the manufacture of titanium dioxide |
| 09/23/1999 | DE19812260A1 Production of iron oxide pigments from dilute acid formed in manufacture of titanium dioxide |
| 09/23/1999 | DE19812009A1 Flat solar still with inclined irregular collector floor |
| 09/23/1999 | DE19812007A1 Water distillation and collector unit with lectern-like structure |
| 09/23/1999 | DE19811742A1 Removing colloidal kaolin or calcium carbonate from waste water |
| 09/23/1999 | DE19811663A1 Production of adsorbent useful for waste water treatment |
| 09/23/1999 | DE19810650A1 Removal of small particles from process water |
| 09/23/1999 | CA2324107A1 Bacteria limiting water treatment and storage systems and methods |
| 09/23/1999 | CA2323143A1 Improvements to solid-liquid separating equipment in particular for biological purification of waste water |
| 09/22/1999 | EP0942773A1 Materials treatment |
| 09/22/1999 | EP0907392A4 Water treatment device and method |
| 09/22/1999 | EP0900177A4 Ultraviolet light irradiated ebullating mass transfer system |
| 09/22/1999 | EP0889854A4 Modified biomass for metal adsorption |
| 09/22/1999 | EP0877714B1 Treatment of alkaline rinse water by reverse osmosis following neutralisation with biogenic carbon dioxide |