Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
07/1994
07/21/1994WO1994015702A1 Method and device for separating oil/water mixtures
07/21/1994DE4330569C1 Process and apparatus for removing ammonium-containing compounds from wastewaters
07/21/1994DE4301394A1 Removal of heavy metals from aq. media
07/20/1994EP0607096A1 Process and apparatus for biological treatment of polluted water, sludges and deposits
07/20/1994EP0607065A1 Device for crystallizing ion structure of food or drinking water in refrigerator by utilizing magnetic energy
07/20/1994EP0607019A1 Systematic tertiary effluent polishing
07/20/1994EP0606823A1 Liquid treatment plant
07/20/1994EP0606398A1 Improved deinking method using ink agglomeration
07/20/1994EP0425491B1 Reversible mechanochemical engines comprised of bioelastomers capable of modulable inverse temperature transitions for the interconversion of chemical and mechanical work
07/20/1994CN2172285Y Automatic water power filter
07/20/1994CN2172284Y Multipurpose magnetized water sanitary toilet implement
07/20/1994CN2172283Y Strong fluid magnetizer
07/20/1994CN2172282Y Multifunction drink water deep purifier
07/20/1994CN2172281Y Cistern water treatment device
07/20/1994CN2172280Y Electrostatic flocculate filter
07/20/1994CN2172279Y Household diatomaceous earth water purifier
07/20/1994CN2172278Y Drink water scale-removing purifier
07/20/1994CN2172155Y High effect resin trap
07/20/1994CN2172054Y Purifying drinking tube
07/20/1994CN1089675A Aqueous suspensions of colloidal particles, preparation and use of the suspensions
07/20/1994CN1089579A Iron method for preptreatment for marsh gas fermentation of molasses containing waste water
07/20/1994CN1025490C Method and apparatus for the clarification of sewage and other impure waste water
07/19/1994US5331079 Polyurethane
07/19/1994US5330957 Composition for the absorption of pollutants
07/19/1994US5330770 Of silicon, sodium and silver oxides
07/19/1994US5330676 Guar gum
07/19/1994US5330661 Process and apparatus for the decomposition of organochlorine solvent contained in water
07/19/1994US5330659 Amines, hydrazines, hydroxylamines for recovering overspray from spray booths
07/19/1994US5330658 Solution decontamination method using precipitation and flocculation techniques
07/19/1994US5330657 System and method for removing asbestos particles from a slurry
07/19/1994US5330656 Anionic polymer, cationic polyamine
07/19/1994US5330650 Dispersion polymers for oil field water clarification
07/19/1994US5330640 Portable water filter having an inlet conduit with a weight and float construction
07/19/1994US5330546 Hydrophobic polyelectrolyte coagulants for concentrating coal tailings
07/19/1994CA2004050C Oxygen removal with carbon catalyzed erythorbate or ascorbate
07/14/1994DE4400613A1 Oil and oil sludge separator from waste water
07/14/1994DE4300709A1 Vehicle washing station waste water cleaning process
07/14/1994CA2112967A1 Processing plant and valve assembly
07/13/1994EP0605882A1 Method and apparatus for wet treatment of solid surfaces
07/13/1994EP0605675A1 Process for lowering the phosphorus content of waste water
07/13/1994EP0605644A1 System for biologically neutralizing waste material
07/13/1994EP0605580A1 Plant for recuperating heat from waste waster.
07/13/1994EP0590075A4 Process for recovering organics from liquid streams
07/13/1994EP0549608A4 Methods for control and mitigation of molluscs
07/13/1994CN2171814Y Energy-saving magnetic scale-eliminating boiler
07/13/1994CN2171596Y On-line oil water antiseptic, anti-dirty apparatus
07/13/1994CN2171595Y Ion water generator
07/13/1994CN2171594Y Secondary focusing solar sea-water desalination apparatus
07/13/1994CN2171593Y Boiling trough of distiller
07/13/1994CN2171266Y Healthy magnetic cup
07/13/1994CN1089241A Oxidation of ammonium ions and organic carbon in wastewaters
07/13/1994CN1089240A Processing method for water decontaminating agent
07/13/1994CN1089239A Efficient flocculating demulsifier and its preparing method
07/13/1994CN1089238A Inorganic salt water cleansing agent
07/12/1994US5328702 Method for preparing a solution containing water-soluble minerals
07/12/1994US5328677 Recovery of sulfides from tannery waste liquor
07/12/1994US5328633 Acidic agents with binders of polyoxyethylene glycols
07/12/1994US5328616 Methods and apparatus for treating electroless plating baths
07/12/1994US5328609 Multi-stage radial flow filtration system
07/12/1994US5328599 System using sulfide ion-selective electrodes for control of chemical feed of organic sulfide products for metal ion precipitation from waste water
07/12/1994US5328598 Device for filtering contaminated water with means to monitor residual contamination
07/12/1994US5328597 Electronic monitoring unit for monitoring number of uses of cartridge
07/12/1994US5328584 Passive circulation in electrolytic fluid treatment systems
07/12/1994US5328574 Water treatment process for electrolysis, in particular for water decarbonization, and apparatus for carrying out this process
07/12/1994US5328572 Preventing scale formation in water pipes
07/12/1994US5328518 Method for separating components of liquids in industrial process
07/12/1994CA2113155A1 Systematic tertiary effluent polishing
07/12/1994CA1330672C Method for varying the capacity of an ion exchanger for a specific chemical element
07/12/1994CA1330670C Sewage sludge treatment with gas injection
07/10/1994CA2112923A1 Device for crystallizing ion structure of food or drinking water in refrigerator by utilizing magnetic energy
07/07/1994WO1994015019A1 Method of disposing of excess sludge
07/07/1994WO1994014711A1 Waste-water purification process
07/07/1994WO1994014710A1 Photocatalytic method for treatment of contaminated water
07/07/1994WO1994014709A1 Apparatus for purifying water
07/07/1994WO1994014708A1 A device for separation of emulsions by electrochemical precipitation
07/07/1994WO1994014707A1 Removing vocs from groundwater
07/07/1994WO1994014538A1 Method and installation for treating an aqueous solution by ion exchange
07/07/1994WO1994014532A1 Diatomaceous earth containing adsorbent, method for making, and methods of use thereof
07/07/1994WO1994014520A1 System and process for treatment of cyanide-containing waste
07/07/1994WO1994014513A1 Removal of hydrocarbons by countercurrent extraction
07/07/1994DE4234502A1 Use of electromagnetic energy in magnetic field region
07/07/1994CA2152618A1 Method of disposing of excess sludge
07/07/1994CA2152057A1 Removing vocs from groundwater
07/07/1994CA2151037A1 Photocatalytic method for treatment of contaminated water
07/06/1994EP0605308A1 Composition containing a surfactant and glycolipids for decontaminating a polluted medium
07/06/1994EP0605288A1 Washing machines using softened water
07/06/1994EP0605277A1 Reactor for optimized ozonation of water used for human consumption
07/06/1994EP0604970A2 Control of continuous microwave digestion process
07/06/1994EP0604968A2 A method of producing water having a reduced salt content
07/06/1994EP0604904A1 Process for the treatment of waste water by chemical oxydation
07/06/1994EP0604514A1 Treatment of aqueous media containing organic material
07/06/1994EP0494866B1 Process and device for treating, in particular cleaning, water containing halogenated ethylenes
07/06/1994CN2170945Y Outer magnetic field type three phase magnetic water device for communicating industry
07/06/1994CN2170944Y Magnetic water cup
07/06/1994CN2170943Y Ion exchanger
07/06/1994CN2170942Y Water filter structure
07/06/1994CN2170941Y Bidirectional screw type water filter
07/06/1994CN2170761Y High efficiency liquid germicidal device using ultraviolet radiation
07/06/1994CN2170706Y Rotating magnetizing antiscaling device for kettle
07/06/1994CN2170699Y Stainless steel magnetic cup