| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 07/03/1997 | WO1997023414A1 Process for preventing scale formation in water stripping operations |
| 07/03/1997 | WO1997023295A1 Decanter centrifuge |
| 07/03/1997 | WO1997023285A1 Method and device for treating an aqueous solution |
| 07/03/1997 | WO1997023279A1 Process for purifying a liquid contaminated by filamentary molecules |
| 07/03/1997 | WO1997023263A1 Extraction method and apparatus |
| 07/03/1997 | WO1997018166A3 Direct osmotic concentration contaminated water |
| 07/03/1997 | DE19548843A1 Verfahren zum Waschen von Wäsche A method of washing laundry |
| 07/03/1997 | CA2241193A1 Process for purifying a liquid contaminated by filamentary molecules |
| 07/03/1997 | CA2238396A1 Extraction method and apparatus |
| 07/02/1997 | EP0781728A1 Method and device for treating an aqueous effluent comprising an organic filler |
| 07/02/1997 | EP0781605A1 Removal of metal compounds from an acid solution |
| 07/02/1997 | EP0781353A1 System for electrolyzing fluids for in vivo administration to humans and other warm blooded mammals |
| 07/02/1997 | EP0781255A1 Water treatment process |
| 07/02/1997 | CN2257286Y Ozone water purification sterilizer |
| 07/02/1997 | CN2257285Y Running water type ozone water purification sterilizer |
| 07/02/1997 | CN1153402A Method for regeneration of covering liquid by resin process |
| 07/02/1997 | CN1153145A Shaft water-collecting return type oxidation pond-land percolation field sewage disposal system |
| 07/02/1997 | CN1153144A Calcium base high polymeric aluminoferrite coagulating water purifying agent |
| 07/02/1997 | CN1153069A Ion unimolecular water bottle (ion water pot) |
| 07/02/1997 | CN1035308C Element of mixing apparatus and making of same |
| 07/01/1997 | US5643963 Aging resistance of skin by reducing wrinkles |
| 07/01/1997 | US5643962 Skin disorders |
| 07/01/1997 | US5643961 Method of using malic acid for treating wrinkles |
| 07/01/1997 | US5643953 Method of using 3-phenyllactic acid for treating wrinkles |
| 07/01/1997 | US5643952 Skin disorders |
| 07/01/1997 | US5643541 Grids of acrylonitrile-butadiene-styrene terpolymer plastic with vertical orientation with caps |
| 07/01/1997 | US5643465 Process for reducing the content of halogen-containing organic compounds in aqueous systems |
| 07/01/1997 | US5643462 Copolymer of a tannin and a cationic unsaturated monomer |
| 07/01/1997 | US5643461 Release agents for water using cationic water soluble cationic polymers, mixing with branching agent then dewatering |
| 07/01/1997 | US5643460 Polymers of dimethylaminoethyl acrylate chloride and benzyl chloride quaternary salt as reverse emulsion breakers |
| 07/01/1997 | US5643459 Flotation method and apparatus |
| 07/01/1997 | US5643457 Method for water recovery from atmosphere of habitable pressurized module |
| 07/01/1997 | US5643456 Chelation polymers for forming complexes and bnding metals |
| 07/01/1997 | US5643454 Sewage respiration inhibition |
| 07/01/1997 | US5643444 Device for filtering a liquid, particularly water |
| 07/01/1997 | US5643443 Water purification system |
| 07/01/1997 | US5643430 Electrodialysis treatment |
| 07/01/1997 | US5643425 Saturated brine tank in apparatus for production of electrolyzed water |
| 06/28/1997 | CA2193778A1 Removal of metal compounds from an acid solution |
| 06/26/1997 | WO1997022558A1 Oil coagulant products and methods of use therefor |
| 06/26/1997 | WO1997022557A1 Swimming pool chemical dispenser |
| 06/26/1997 | WO1997022556A1 Thermal plasma reactor and wastewater treatment method |
| 06/26/1997 | DE19703579A1 Adsorption and filtering unit with mobile adsorption layer |
| 06/26/1997 | DE19548743A1 Treatment of water contaminated with oxidisable, e.g. organic substances |
| 06/26/1997 | DE19548316A1 Aufbereitung alkalischer Spülwässer mit Umkehrosmose nach Neutralisation mit biogenem Kohlendioxid Treatment with alkaline rinsing water reverse osmosis after neutralization with biogenic carbon dioxide |
| 06/25/1997 | EP0780342A1 Process for dye removal |
| 06/25/1997 | EP0780146A1 Steam-heated apparatus for evaporating and thickening liquids |
| 06/25/1997 | EP0779880A1 Method of removing chlorine and halogen-oxygen compounds from water by catalytic reduction |
| 06/25/1997 | EP0779840A1 Gas entrainment/flotation reactor with arrangements for separating solids from liquids |
| 06/25/1997 | EP0779830A1 Sieve system for an ion exchange column |
| 06/25/1997 | EP0779829A1 Process and device for desalinating sea water |
| 06/25/1997 | EP0732968A4 Ion exchange methods and systems incorporating regenerant recycling |
| 06/25/1997 | EP0700315A4 Multi-stage water treatment system |
| 06/25/1997 | EP0691879B1 Microfilter plate and process for making it |
| 06/25/1997 | CN2256880Y Two-way pipeline type water purifier |
| 06/25/1997 | CN2256879Y Domestic water purifier |
| 06/25/1997 | CN2256878Y Domestic health water purifier |
| 06/25/1997 | CN2256877Y Magnetizing apparatus for removing scale |
| 06/25/1997 | CN2256876Y Ultra-violet water sterilizer |
| 06/25/1997 | CN2256875Y Distilling water machine with air cleaning function |
| 06/25/1997 | CN1152885A Contaminant recovery system and method |
| 06/25/1997 | CN1152884A 流体萃取 Fluid Extraction |
| 06/25/1997 | CN1152565A Mixed amino-acid complex state multielement micro-fertilizer and making method |
| 06/25/1997 | CN1152552A Health care water quality purifying agent for domestic use |
| 06/25/1997 | CN1152551A Activated char regeneration method and equipment in process of activated char treating nitrobenzene waste water |
| 06/25/1997 | CN1152474A Ceramic-core water purifier and filter-bottle thereof |
| 06/24/1997 | US5641847 Oil-absorbent polymer and use therefor |
| 06/24/1997 | US5641520 Halogen compositions for water treatment |
| 06/24/1997 | US5641456 Apparatus and method for cleaning |
| 06/24/1997 | US5641413 Removal of nitrogen from wastewaters |
| 06/24/1997 | US5641412 Natural gas and air is supplied to the burner to produce a flame containing hydroxy free radicals and oxygen, and oxidizing the organic substance |
| 06/24/1997 | US5641411 Method of detoxifying industrial discharge waters |
| 06/24/1997 | US5641410 Mixing reservoir; electrical signals associated with sensors indicate water flow rates and qualities |
| 06/24/1997 | US5641408 Introducing source of phosphorus and source of barium, precipitating solid residue comprising barium phosphate having metallic impurities distributed therein |
| 06/24/1997 | US5641407 Adding to effluent at neutral ph salt of metal having insoluble hydroxide, forming hydroxide sludge entraining hydrophobic oxidizable organic substances, separating sludge, oxidizing organic substances |
| 06/24/1997 | US5641401 Degassing; venting; ph adjustment; stripping gas; steam; agitation in holding tank |
| 06/24/1997 | CA2064269C Method and apparatus for treatment of acidic water streams |
| 06/21/1997 | CA2193710A1 Apparatus for and method of separation to water and colloidal particles by agglomeration |
| 06/19/1997 | WO1997021632A1 Method for desalinating and demineralising solutions containing acids and/or metal salts |
| 06/19/1997 | WO1997021631A1 Process for the purification of effluent from 1,2-dichloroethane preparation |
| 06/19/1997 | WO1997021630A1 Water desalination |
| 06/18/1997 | EP0779247A1 Treatment method for treating effluents from a photographic development process |
| 06/18/1997 | EP0779246A1 Precipitating agent for treating effluents |
| 06/18/1997 | EP0779245A1 Plastic container with magnetic device to soften water, in particular for use in steam irons and for similar purposes |
| 06/18/1997 | EP0779244A1 Water treatment tank assembly |
| 06/18/1997 | EP0779242A2 Process for preparing stable high basicity aqueous solutions of basic aluminium chlorosulphate or basic aluminium chloride |
| 06/18/1997 | EP0779089A2 Method and apparatus for separating oil from water in wastewater containing an emulsified oil |
| 06/18/1997 | EP0778813A1 Method for dewatering sludges |
| 06/18/1997 | EP0639163B1 Turbo oxidation system (tos) for "wet combustion" of cod-containing liquids and for cod-reduction by enzymes |
| 06/18/1997 | EP0606398A4 Improved deinking method using ink agglomeration. |
| 06/18/1997 | CN2256422Y Mixing and agglutinating settling waste water treating equipment |
| 06/18/1997 | CN2256421Y Electronic water treating device |
| 06/18/1997 | CN2256420Y Heat pump distilled water machine |
| 06/18/1997 | CN2256419Y High efficiency water treating device |
| 06/18/1997 | CN1152341A Electrolytic cell for producing mixed oxidant gas |
| 06/18/1997 | CN1152260A Fluid extraction of metal and/or metalloid |
| 06/18/1997 | CN1151974A Treating method and equipment of waste liquor from gourmet powder production |
| 06/18/1997 | CN1151973A Deep treating and reusing technology of waste water in wire producing process |
| 06/18/1997 | CN1151972A 净水器 Water Purifier |
| 06/18/1997 | CN1151971A Efficient jet heat-circulation distilling water purifier |