| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 07/22/1999 | WO1999036365A1 New flocculant for the treatment of waste waters |
| 07/22/1999 | WO1999036364A1 Process for sanitizing chlorinated water |
| 07/22/1999 | WO1999036363A1 Process for recovering onium hydroxides from solutions containing onium compounds |
| 07/22/1999 | WO1999036152A1 Filter assembly for use with a bottle |
| 07/22/1999 | WO1999027970A3 Method and devices for disinfecting liquid and gases |
| 07/22/1999 | WO1999008719B1 Sterilization apparatus utilizing catholyte and anolyte solutions |
| 07/22/1999 | DE19801867A1 Post-treatment of water from final stage of waste water clarification plant |
| 07/22/1999 | DE19801705A1 Tubular reactor for potable water disinfection, process water sterilization and waste water decontamination |
| 07/22/1999 | CA2317710A1 Enhanced in-bottle filtration mechanism and techniques |
| 07/22/1999 | CA2316333A1 A lamp device and a lamp tube as well as a method of regulating the lamp device |
| 07/21/1999 | EP0930283A1 Porous ceramics provided with amorphous pore surfaces and method for treating drain water and waste liquid by the use of same |
| 07/21/1999 | EP0930277A1 Process for treating exhaust gases from a unit for the fabrication of optical fiber preforms, for recovering germanium |
| 07/21/1999 | EP0930273A2 Method and device for the treatment of surface water with a high algae content |
| 07/21/1999 | EP0930272A2 Method for partial demineralization of water |
| 07/21/1999 | EP0929582A1 Cationic water-soluble polymer precipitation in salt solutions |
| 07/21/1999 | EP0929580A1 Anionic water-soluble polymer precipitation in salt solution |
| 07/21/1999 | EP0929500A1 A process to manufacture stabilized alkali or alkaline earth metal hypobromite and uses thereof in water treatment to control microbial fouling |
| 07/21/1999 | EP0929358A2 Improved water treatment system |
| 07/21/1999 | EP0929320A1 Dosing mechanism to feed germicide or disinfectant into a water supplied supply device and the use thereof |
| 07/21/1999 | EP0888250A4 Water treatment method |
| 07/21/1999 | CN2329660Y Pipeline-type water treater for purifying water |
| 07/21/1999 | CN2329655Y Water purifier capable of reverse washing |
| 07/21/1999 | CN2329627Y Filtering-type water storage bottle |
| 07/21/1999 | CN1223667A Method and products to absorb oil and organic solvents from water and from sea |
| 07/21/1999 | CN1223605A Drinking water filtration system |
| 07/21/1999 | CN1223596A Liquid chromatography column |
| 07/21/1999 | CN1223234A Negative temp. different sea water desalination equipment |
| 07/21/1999 | CN1223160A Multi-stage water filter system |
| 07/21/1999 | CN1044201C 热交换器元件 Heat exchanger elements |
| 07/20/1999 | US5926687 Crown calix |4| arenes, their preparation process and their use for the selective extraction of cesium and actinides |
| 07/20/1999 | US5925754 Epsilon caprolactam compositions |
| 07/20/1999 | US5925716 Colorimetric or fluorometric detection with amine sulfide compounds |
| 07/20/1999 | US5925324 Magnetohydrodynamic sterilization method and apparatus |
| 07/20/1999 | US5925292 Water charging machine |
| 07/20/1999 | US5925257 Method and apparatus for removing biofilm from an aqueous liquid |
| 07/20/1999 | US5925256 Treatment of effluent with a silicate, a hydrotalcite at alkaline ph to adsorb iron complexes, then decantation and filtration of supernatant |
| 07/20/1999 | US5925255 Elimination of scale causing impurities prior to concentrating feedwater stream at a selected ph, raising ph to more fully ionize remaining impurities and passing feedwater through membrane separator to elute pure water |
| 07/20/1999 | US5925252 Immersible element having gradient concentration of active ingredient highest at the outside for initially rapid sewagebiodegradation when exterior dissolves and then slower biodegradation at a maintaining rate when center dissolves |
| 07/20/1999 | US5925243 Inline cartridge filter |
| 07/20/1999 | US5925240 Water treatment system having dosing control |
| 07/20/1999 | US5925230 Comprising di- and tri-hydroxybenzene, di- and tri-hydroxy naphthalenes, formaldehyde, carbon reinforcing agents, catalyst or reaction products thereof togather in a carbonized form; purification of water effluents |
| 07/20/1999 | US5925223 Process for improving thermal efficiency while producing power and desalinating water |
| 07/20/1999 | CA2174239C Photoassisted oxidation of species in solution |
| 07/20/1999 | CA2120837C Method for forming mineral solids-oil floccules |
| 07/15/1999 | WO1999035454A1 Desalinization method and apparatus |
| 07/15/1999 | WO1999035096A1 Vented batch liquid purifier |
| 07/15/1999 | WO1999035095A1 Flowthrough batch liquid purifier |
| 07/15/1999 | WO1999035094A1 Removal of heavy metal ions from aqueous media |
| 07/15/1999 | WO1999035093A1 Self-cleaning siphon-actuated radial flow filter basket |
| 07/15/1999 | WO1999035092A1 Pour-through water treatment dispenser |
| 07/15/1999 | WO1999035091A1 Pour-through water treatment carafe |
| 07/15/1999 | WO1999035084A1 Supercritical treatment of adsorbent materials |
| 07/15/1999 | WO1999035078A1 Intermittent spray system for water treatment |
| 07/15/1999 | WO1999034926A1 Method for recovering and separating metals from waste streams |
| 07/15/1999 | WO1999034894A1 Apparatus for separating a low density liquid from a high density liquid |
| 07/15/1999 | WO1998027012A9 Method for the electro-chemical treatment of aqueous solutions and device for realising the same |
| 07/15/1999 | DE19800886A1 Removing iron and manganese from natural mineral water |
| 07/15/1999 | DE19800699A1 Entfernung von Schwermetallionen aus wäßrigen Medien Removal of heavy metal ions from aqueous media |
| 07/15/1999 | DE19800610A1 Cleaning up waste water containing heavy metals, e.g. in electronics or electroplating industries |
| 07/15/1999 | CA2318475A1 Pour-through water treatment dispenser |
| 07/15/1999 | CA2315366A1 Apparatus for separating a low density liquid from a high density liquid |
| 07/15/1999 | CA2257450A1 Process for the partial desalination of water |
| 07/14/1999 | EP0928778A2 Agent for treating boiler water |
| 07/14/1999 | EP0928777A1 Waste treatment system in a polishing apparatus |
| 07/14/1999 | EP0928776A2 Method to lower the growing of algae in natural or artificial waters |
| 07/14/1999 | EP0928565A1 Drinking liquid |
| 07/14/1999 | EP0928228A1 Method for decontaminating contaminated soils |
| 07/14/1999 | EP0606398B1 Improved deinking method using ink agglomeration |
| 07/14/1999 | CN2328655Y Purifying device for waste water |
| 07/14/1999 | CN1222924A Water-in-oil emulsion spray drying process |
| 07/14/1999 | CN1222923A Spray-dried polymer compositions and methods |
| 07/14/1999 | CN1222922A Spray-drying oil recovery process |
| 07/14/1999 | CN1222607A Highly concentrated aqueous suspension of minerals and/or fillers and/or pigments |
| 07/14/1999 | CN1222603A Printing and dyeing sewage decoloring and purifying method and preparation thereof |
| 07/14/1999 | CN1222489A Amphoteric polymer/polyamine combinations for color removal and clarification of paper mill waste water |
| 07/14/1999 | CN1222488A Digital electrochemical water treating method |
| 07/14/1999 | CN1222487A Waste water treating tower |
| 07/14/1999 | CN1044096C Bubble floatation plant |
| 07/13/1999 | US5922803 Comprising carbon particles and binder of selected partilcesizes; room temperature water purification; removal of 99.5% submicron particulates, e.g. dusts; hard, smooth surfaces |
| 07/13/1999 | US5922745 A synergistic microbiocide comprising a mixture of 5-chloro-2-methyl 4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one treating industrial aqueous systems including cooling water systems, pulp and paper mill |
| 07/13/1999 | US5922378 Filter retaining passageway connecting upper and lower reservoirs; pump mechanism to introduce controlled amount ofan additive including vitamins, minerals and herbs to discourage their consumption in excess |
| 07/13/1999 | US5922209 Applying an electric charge to bacteria or virus which exceeds the electrostatic capacity of the cell, promotes osmosis |
| 07/13/1999 | US5922207 Filter aid for clay processing |
| 07/13/1999 | US5922206 Absorbing a majority of the water insoluble petroleum oils with a clay absorbent then contacting the reduced oil water with crosslinked beads of polyvinylpyridine macroreticular adsorbent resin to remove the water soluble petroleum oils |
| 07/13/1999 | US5922064 Oil and gas well separation apparatus |
| 07/13/1999 | US5921113 Clothes washing machine having electrolytic purifier for waste water |
| 07/08/1999 | WO1999034034A1 Portable device for deionizing liquids |
| 07/08/1999 | WO1999034032A1 Corrosion protected treatment device |
| 07/08/1999 | WO1999034013A1 A rapid method for the assessment of the inhibition and kill of anaerobic bacteria by toxic compounds |
| 07/08/1999 | WO1999033752A1 A method and a system for purifying water |
| 07/08/1999 | WO1999033751A1 Desalination method and desalination apparatus |
| 07/08/1999 | WO1999033564A1 Highly porous photocatalyst for utilising visible light |
| 07/08/1999 | WO1999033552A1 Vapor/liquid mixer and polluted water purification apparatus using the mixer |
| 07/08/1999 | WO1999033551A1 Methods to remove metals from water |
| 07/08/1999 | WO1999033541A1 Coagulation precipitator |
| 07/08/1999 | WO1999033539A1 Water purification filter |
| 07/08/1999 | WO1999033363A1 Bilberry-containing drinks and process for producing the same |
| 07/08/1999 | WO1999033345A1 Biocidal compositions and treatments |
| 07/08/1999 | DE19818692C1 Monitoring of a reverse osmosis operation |
| 07/08/1999 | DE19800335A1 Preparing dehydrated products especially food and pharmaceuticals, with reuse of waste water |