Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
04/1992
04/28/1992US5108563 Electrolysis of waste to remove polluents
04/28/1992US5108549 Using membranes
04/28/1992US5108548 Low pressure distillation apparatus
04/28/1992US5107896 Multi-functional valve
04/28/1992CA1299778C Method and system for enriching oxygen content of water
04/28/1992CA1299512C Decomposing oil-in-water emulsions using metal insert forming hydroxyl complex
04/27/1992WO1992008001A1 Process for recovering raw materials from paper-industry mechanical waste sludges
04/27/1992CA2094809A1 Process for recovering raw materials from paper-industry mechanical waste sludges
04/25/1992CA2028497A1 Composition for chemical and biological treatment of polluted water, and preparation process therefor
04/23/1992DE4102966C1 Process for breaking down emulsified hydrocarbon in water - using anaerobes in reactor, producing water-poor and water-rich phase, where floating and non-floating low water phase are recycled etc.
04/23/1992DE4033489A1 Chlorine and hydrogen recovery from smoke from waste combustion - by sepg. fly ash, scrubbing gas, neutralising circulating scrubbing liquor contg. hydrochloric acid and electrolysing
04/23/1992DE4033342A1 Treating waste water contg. sludge - by addn. of hydrogen peroxide, oxidn. and distillation to remove volatiles
04/23/1992DE4033012A1 Dewatering esp. of clarification sludge - by combined centrifugal filtering and pressurised gas filtering
04/22/1992EP0481746A1 Recovery of surfactant from papermaking process
04/22/1992EP0481669A2 Monofluorophosphate solubility inhibitor for lead in potable water sources
04/22/1992EP0481576A2 Membrane electrolytic cell
04/22/1992EP0481541A1 Process for treating refinery slurries
04/22/1992EP0481269A2 Water conditioning agent and/or water germicide without perborate or borate, method for its production and its use
04/22/1992EP0481049A1 Binder for absorbing oily liquids
04/22/1992EP0207951B1 Osmotic concentration by membrane
04/22/1992CN2102290U Purifying divice for mine water
04/22/1992CN2102289U Pen type multifunctional water magnetizing device
04/22/1992CN2102288U Chlorine dioxide synergistic sterilizer generator
04/22/1992CN2102287U Drinking water sterilizing and purifying bag
04/22/1992CN2102155U Ion-exchanging treating device
04/22/1992CN2102149U Drinking water purifier
04/22/1992CN2102070U No-scale magnetization air pot
04/22/1992CN2102055U Magnetization cup
04/22/1992CN1060453A Aeration of liquids
04/22/1992CN1060452A Removal of cyanide from aqueous streams
04/22/1992CN1060451A Flocculant for water treatment and method for producing it
04/22/1992CN1060450A Method for clarifying tailing water
04/22/1992CN1060412A Magnetotherapeutic health drinking vessel
04/21/1992US5106512 Portable air-water generator
04/21/1992US5106510 Combined filtration and fixation of heavy metals
04/21/1992US5106509 Process for the removal of fluoride from waste water
04/21/1992US5106508 Integrated process for cyanide and heavy metal removal from plating process waste streams
04/21/1992US5106507 Method for recovering hydrocarbon contaminants from wastewater
04/21/1992US5106503 Ultra-pure water supply piping system
04/21/1992US5106501 Multi-function filter cartridge with flow distribution control
04/21/1992US5106500 Portable water purification system including a filter cleaning mechanism
04/21/1992US5106497 Water treatment
04/21/1992US5106496 Treatment of volatile organic substances at waste water treatment plants
04/21/1992US5106495 Portable water purification device
04/21/1992US5106493 Gray-water reclamation and reuse system
04/21/1992US5106491 Device for eliminating boiler scale using arrangement of magnetic coils and baffle plates
04/21/1992US5106464 Dialysis using cationic permselective membrane
04/21/1992EP0594566A4 High pulsed voltage systems for extending the shelf life of pumpable food products.
04/21/1992CA1299162C Catalyst resins and process for their preparation
04/21/1992CA1299096C Method for the control of mollusks
04/21/1992CA1298954C Compound containing ferric ferrous salt and a producing method thereof
04/20/1992WO1992006926A1 Chemical feed apparatus
04/20/1992WO1992006925A1 Apparatus and method for hydrolysis of cyanide-containing liquids
04/18/1992CA2027808A1 In-pool convection saltwater chlorinator
04/16/1992WO1992006146A1 Method of absorbing hydrophobic water-immiscible liquids
04/16/1992WO1992006042A1 Fluid treatment apparatus
04/16/1992WO1992006041A1 New electrochemical method for softening hard water and apparatus for implementing such method
04/16/1992WO1992006040A1 A method for corrosion-proofing of a water system
04/16/1992WO1992006039A1 Oil absorption method and apparatus utilizing a replaceable bladder
04/16/1992WO1992005855A1 Water filter having a horizontal inlet channel
04/16/1992WO1992005838A1 Dichloromethane abatement
04/16/1992DE4138088A1 Environment-friendly spray painting - where spray compsn. contains ultrafiltration throughput setting component and recirculated water conductivity is monitored
04/16/1992DE4032265A1 Domestic multistage drinking water filter unit - comprises inlet and outlet three=way valves, connection line and non-return valve
04/16/1992CA2093446A1 Fluid treatment apparatus
04/16/1992CA2053163A1 Monofluorophosphate solubility inhibitor for lead in potable water sources
04/15/1992EP0480779A1 Process for the physical-chemical treatment of liquids
04/15/1992EP0480474A1 Method for removing polyclorinated dibenzodioxins and polychlorinated dibenzofurans from paper mill sludge
04/15/1992EP0480386A1 Polytetraalkylammonium and polytrialkylamine containing ligands bonded to inorganic supports and processes of using the same for removing and concentrating desired ions from solutions
04/15/1992EP0480243A1 A method for purifying waste and/or drinking water
04/15/1992EP0480216A1 Process for the treatment of wash water from gas scrubbers of an iron ore reduction plant
04/15/1992EP0480055A1 Method of purifying lacustrine water and filthy water purification boat
04/15/1992CN2101668U Filpping magnet scale remover
04/15/1992CN2101667U Water magnetizer with permanent-magnet alternating magnetic field
04/15/1992CN2101666U Spray type desalination device for sea water
04/15/1992CN2101519U Civil water filter
04/15/1992CN2101494U Multifunctional magnetic cup with drug
04/15/1992CN2101447U Electric magnetic thermos
04/15/1992CN2101427U Fast megnetic cup
04/15/1992CN2101426U Magnetotherapy cup
04/15/1992CN1060278A Process for production of solid polyiron sulfate
04/15/1992CN1060226A Devulcanizing agent prepared from waste acidic liquid and preparing process thereof
04/14/1992US5104554 Removing radon by downhole sparging of air
04/14/1992US5104552 Reduction of clay in sludges to be dewatered
04/14/1992US5104551 Method of flocculating clay-containing waste slurries
04/14/1992US5104550 Precipitation of carbonate or bicarbonate ions with excess calcium hydroxide and removal; ozone and hydrogen peroxide oxidants
04/14/1992US5104549 Waste treatment process for alkaline waste liquid
04/14/1992US5104548 Controlling and recovering oil spills from the environment
04/14/1992US5104546 Pyrogens separations by ceramic ultrafiltration
04/14/1992US5104545 Process for removing water soluble organic compounds from produced water
04/14/1992US5104544 Refining of a rare earth including a process for separation by a reverse osmosis membrane
04/14/1992US5104528 Floating decanter
04/14/1992US5104525 Portable self-contained water remediation package
04/14/1992US5104505 Controlled cooling by circulation of coolant through spaced hollow fibers in electrophoresis vessel
04/14/1992US5103653 Flow of air or water melts ice in bottom of bin; automatic control of water level
04/14/1992CA1298923C Process for treating waste water containing uranium and fluorine
04/14/1992CA1298831C Cationic and anionic lignin, amines
04/14/1992CA1298821C Device for separating fine particles of solid matter from waste fluid
04/14/1992CA1298794C Hazardous waste treatment process
04/14/1992CA1298753C Method of removing amine from oil
04/13/1992CA2046118A1 Method for removing polychlorinated dibenzodioxins and polychlorinated dibenzofurans from paper mill sludge