Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
04/1999
04/01/1999WO1999015266A1 Method and apparatus for providing precipitation
04/01/1999WO1999015207A1 Method for cleaning and sterilising endoscopes
04/01/1999WO1999002457A3 Method for removing pollutant organic fluids from surface water
04/01/1999WO1998016462A9 Treatment of chlorine dioxide generator effluent and feed streams with fixed-resin bed
04/01/1999DE19741546A1 Two-stage bottle washing process for recycled bottling plant
04/01/1999CA2304716A1 Compositions and methods for the remediation of chemical contamination in subsurface water bearing geological formations
03/1999
03/31/1999EP0905265A1 Method of reducing water quantity in slurries of oxidic nickel ores by injection of acrylic flocculant
03/31/1999EP0905091A1 Starch/cationic polymer combinations as coagulants for the mining industry
03/31/1999EP0905090A2 Downflow hydrothermal treatment
03/31/1999EP0904316A2 Mechanically stable self-inverting water-in-oil polymer emulsions
03/31/1999EP0904253A1 Method for desalinating and demineralising solutions containing acids and/or metal salts
03/31/1999EP0904252A1 Method for enhancing biocidal activity
03/31/1999EP0904155A1 Drinking water filtration system
03/31/1999EP0903982A1 Biocidal composition and method for treating raw materials, products and means of production
03/31/1999EP0703875B1 Method for making and using coagulant compositions comprising a reaction product of a glyceride with a polymer and a solvent
03/31/1999EP0672022B1 Process for treating waste water
03/31/1999EP0668298B1 Maleic acid copolymer, process for producing the same and use thereof
03/31/1999CN2312230Y Device for purifying water tank placed on roof
03/31/1999CN2312229Y Purification and mineralization of drinking water
03/31/1999CN2312228Y Non-drinking water quality regulating device to prevent from being forming scale in water pipe
03/31/1999CN2312227Y Positive pressure and perpeating type domestic water purification apparatus
03/31/1999CN2312226Y Space type water purification container
03/31/1999CN2312225Y Apparatus for producing activated ionization water by electrolysing method
03/31/1999CN1212636A Multi-port multi-stream valve apparatus
03/31/1999CN1212240A Peppermint pure water and its preparing technology
03/31/1999CN1212239A Leather-making waste water treatment method
03/31/1999CN1212182A Drum spiral-tube sieve
03/30/1999US5889684 Computer-controlled heated and/or cooled liquid dispenser
03/30/1999US5889097 Anionic water-soluble polymer precipitation in salt solution
03/30/1999US5888939 Compositions and methods for controlling the growth of microbials in aqueous media
03/30/1999US5888472 Zirconium silicate molecular sieves and process using the same
03/30/1999US5888428 Methods for generating residual disinfectants during the ozonization of water
03/30/1999US5888406 Device for the removal of thin surface films of petroleum products from the water's surface
03/30/1999US5888405 To inhibit bacteria from adhering to a submergible metal surface within an aqueous system
03/30/1999US5888403 Water treatment process and system
03/30/1999US5888389 Apparatus for oxidizing undigested wastewater sludges
03/30/1999US5888388 Water treatment
03/30/1999US5888386 Swimming pool skimmer and chlorinator apparatus
03/30/1999US5888382 Filtration tank and means for subsequent purification of waste water
03/30/1999US5888381 Water filter with pressure actuated flow monitor
03/30/1999US5888359 Flock separating apparatus
03/30/1999US5888357 Apparatus and method for producing ionic water and system and method for producing electrolytic ionic water
03/30/1999US5888311 Recycling cleaning solution, separating to provide soil-rich concentrate and low-soil content regenerate
03/30/1999US5888307 Method and means for hydrolysis of organic materials
03/30/1999CA2217139A1 Sorbents for removing toxicants from blood or plasma, and method of producing the same
03/30/1999CA2186963C High water recovery membrane purification process
03/30/1999CA2130911C Electrolytic cell for generating sterilization solutions having increased ozone content
03/29/1999CA2248479A1 Starch/cationic polymer combinations as coagulants for the mining industry
03/25/1999WO1999014163A1 Ozonation apparatus for water treatment
03/25/1999WO1999014162A1 Method and device for treating a heavily loaded liquid effluent in particular with nitrogen and with phosphorus
03/25/1999WO1999014161A1 Device and method for exposing liquids, including pretreated wastewater, to x-rays
03/25/1999WO1999013975A1 Method and apparatus for improved mixing in fluids
03/25/1999WO1998052874A3 Water treatment system having dosing control
03/25/1999DE19745106C1 Iodine recovery from aqueous solutions or waste water containing other salts
03/25/1999DE19741898A1 Integral filter unit for rain water tank suitable for household use
03/25/1999DE19741806A1 Purifying hot waste water containing a high organic or inorganic load of impurities by evaporation and compressing vapor
03/25/1999DE19725096A1 Removing reactive dyes from highly colored waste water by adding water soluble polyampholye, then membrane filtering
03/25/1999CA2304832A1 Method and device for treating a heavily loaded liquid effluent in particular with nitrogen and with phosphorus
03/24/1999EP0903325A1 Apparatus and method for ozone treatment of sewage sludge
03/24/1999EP0903324A2 Process and installation for the treatment of water
03/24/1999EP0902795A1 Method and products to absorb oil and organic solvents from water and from sea
03/24/1999EP0902759A1 Method and apparatus for removing metal ions and/or complexes containing metal ions from a solution
03/24/1999EP0902722A1 Device for controlling, guiding, adjusting, measuring and monitoring liquid flows, and water treatment facility
03/24/1999EP0885045A4 Pelletized composition for treatment of storm water runoff
03/24/1999EP0805782A4 Method of and apparatus for treating fluids to alter their physical characteristics
03/24/1999EP0793623A4 Multi-channel denitrification system
03/24/1999EP0675855B1 Apparatus for purifying water
03/24/1999CN2311489Y Safety chlorinator
03/24/1999CN2311488Y Device for generating magnetic and alkaline purified water
03/24/1999CN2311487Y Water purifying disinfector
03/24/1999CN2311486Y Reverse osmosis water treatment apparatus and its controller
03/24/1999CN2311485Y Device for resisting fat-gathering
03/24/1999CN2311484Y thermal pump type water purifier
03/24/1999CN1211931A Waste liquid treatment
03/24/1999CN1211547A Device and method for high-dissolved oxygen in water
03/24/1999CN1211546A Treatment method for lithium-containing waste liquid of synthetic alkyl lithium compound
03/24/1999CN1211545A Framed corrugated board coagulator
03/24/1999CN1211544A Buoyant method extraction technology for crude protein of brewery waste water
03/24/1999CN1211543A Technological process of deep purification for tap water in high-rise building or resident quarters
03/24/1999CN1211542A Pulse-radio water treatment method and its device
03/24/1999CN1211541A Extracting and recovering treatment method for agricultural chemicals waste water
03/24/1999CN1211540A Waste water treatment process by super-critical aqueous oxidation
03/24/1999CN1211539A Dispensing apparatus having improved filter unit
03/23/1999US5885602 Process for the persistence control of chemicals released into the environment
03/23/1999US5885478 Concrete mix water
03/23/1999US5885466 Rendering well water potable by flowing water through down draft aerator tube vertically positioned within water holding tank
03/23/1999US5885462 Process for reducing the concentration of multivalent cations in aqueous solutions
03/23/1999US5885461 Process and system for treatment of pig and swine manure for environmental enhancement
03/23/1999US5885459 Process for purifying and reusing surfactant-containing waste waters
03/23/1999US5885449 Apparatus for removing microbes from flowing media, such as water
03/23/1999US5885446 Wastewater treatment system for loading tablets into wastewater conduit
03/23/1999US5885426 Spa purification system
03/23/1999US5885424 Treating water in oil emulsion with demulsifier, enhancing demulsification by subjecting the mixture to low frequency sonication within a hollow chamber
03/23/1999US5885076 Method and system for removing mercury from dental waste water
03/23/1999US5885032 Cationic water-soluble polymer precipitation in salt solutions
03/23/1999CA2033000C Sewage sludge treatment with gas injection
03/18/1999WO1999013051A1 Device for purification of organic material by adsorbing material to beads and attracting beads with magnetical, electrical or gravitational means
03/18/1999WO1999012853A1 System and method for photocatalytic treatment of contaminated media
03/18/1999WO1999012628A1 Resin filter cartridge
03/18/1999WO1998058090A3 A method and a device for recovering metals comprising dissolving, concentrating and electrowinning means with rotatable cathode