Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
11/1986
11/04/1986CA1213558A1 Method of purifying trivalent chromium electroplating baths
10/1986
10/29/1986EP0199710A2 Electrolytic cell and its use in separating emulsions, for flotation and/or for liquid-liquid extraction under the influence of an electric field
10/29/1986EP0199554A1 Removal of halogen from halogenated compounds
10/29/1986EP0199521A2 An antimicrobial composition
10/29/1986EP0199335A2 Process for removing metal complexes from waste solutions
10/29/1986CN86200675U Sterilizing and purifying device for drinking water
10/28/1986US4619819 Phosphoric acid composition
10/28/1986US4619763 Purification of drinking water
10/28/1986US4619745 Process for the electrochemical decontamination of water polluted by pathogenic germs with peroxide formed in situ
10/28/1986US4619744 Soluble crosslinkable polyelectrolyte
10/28/1986CA1213246A1 Electrostatic water treatment
10/28/1986CA1213236A1 Clarification of black water produced during recovery of bitumens and heavy oils
10/23/1986WO1986006059A1 Filter apparatus for removing hydro carbon contaminents from water, particularly for purifying oil contaminated water
10/22/1986EP0198334A2 Water clarifier and sewage treatment device
10/22/1986EP0198022A1 Evaporative heat exchanger
10/22/1986CN86201739U Continue water treatment equipment with single valve and multiple posts
10/22/1986CN86102713A Adsorbent for recovery of bromine and bromine-recovering process using the same
10/22/1986CN86102296A Water treatment plastic products for rectangular clarifiers
10/21/1986US4618709 Waste water treatment in the production of methacrylic acid
10/21/1986US4618430 Using gas to float waste to surface, then blowing into outlet
10/21/1986US4618429 Method of maintaining adequate seed crystal in preferential precipitation systems
10/21/1986US4618428 Membrane-based solvent extraction of aqueous solutions
10/21/1986US4618427 Method of treating and breaking up a liquid with the help of centripetal force
10/21/1986US4618414 Process for separating mineral ultra-fine grain from washings obtained in coal processing or from coal slurries
10/15/1986EP0197213A1 Treatment of a medium for the reduction of biofouling
10/15/1986CN85108327A Process for treating industrial waste water containing phenol
10/15/1986CN85103030A Process for treating waste water containing latex
10/14/1986US4617130 Cavitation
10/14/1986US4617124 Polymeric microfibrous filter sheet, preparation and use
10/14/1986US4617123 Processes and installations for treating waste waters issuing from the manufacture of sauerkraut
10/14/1986US4617117 Housing assembly with removable jacked cover
10/14/1986CA1212643A1 Mutation assays involving blood cells that metabolize toxic substances
10/14/1986CA1212633A1 Device for selective and continous recuperation of hydrocarbons spilled on a water body
10/14/1986CA1212556A1 Multiple-use coal-humus-based, treatment and processing medium
10/14/1986CA1212554A1 Heatpump
10/09/1986WO1986005822A1 Method of deposition of uniform, substrate-independent metal layers on solid and liquid material surfaces, and/or metal depletion of solutions
10/09/1986WO1986005772A1 Method and apparatus for reducing pitting in copper water pipes
10/08/1986EP0196884A2 Turbine agglomerated calcium hypochlorite particle
10/08/1986EP0196597A2 Process for treating ammonium nitrate-containing waste water
10/08/1986EP0196506A2 Process and apparatus for the separation of sulfate from waste water
10/08/1986EP0196402A2 Removal of dioxins, PCB's and other halogenated organic compounds from wastewater
10/08/1986EP0196334A1 Method for killing cells, and cytocidal agent
10/08/1986CN85106669A Family mineral spring
10/08/1986CN85102554A Method and apparatus improvement for treatment pickles produced waste water
10/07/1986US4616041 Membranes of substantially non-crosslinked organic polymers
10/07/1986US4616037 Synergistic biocide of 1,5-pentanedial and methylene bis thiocyanate
10/07/1986US4615873 Precipitation of zinc, cadmium, mercury, cobalt, nickel, lead or zinc ferrocyanide
10/07/1986US4615808 Preventing formation of scale; electic power generators
10/07/1986US4615807 Quaternary ammonium salts and organotin mixture to disinfect
10/07/1986US4615799 Household potable water
10/07/1986US4615786 Non ion selective membrane in an EAVF system
10/07/1986CA1212368A1 Spherical ion exchange resin, method for producing the same and method for adsorption treatment using the same
10/07/1986CA1212349A1 Use of chelating agents in water desalination
10/07/1986CA1212240A1 Process for removal and recovery of mercury from waste water
10/01/1986EP0195934A1 Water-treatment device, suitable for being installed in a pipe
10/01/1986EP0195877A1 Process for depositing a uniform metal hydroxide layer on substrates and for extracting metals in solution
10/01/1986EP0195819A1 Method for ion-exchange or adsorption
10/01/1986CN86102728A Process for treating ammonium nitrate-containing waste water
10/01/1986CN85102690A Method of treating waste water containing cyanide
09/1986
09/30/1986US4614645 Wet treatment
09/30/1986US4614596 Roatation, varying velocities
09/30/1986US4614595 Method of water treatment
09/30/1986US4614592 Process for removing mercury from aqueous solutions
09/30/1986US4614591 Method to purify water
09/30/1986US4614589 Method and apparatus for biological aerobic wastewater treatment
09/30/1986US4614584 Settling chamber and plurality of drain outlets
09/30/1986US4614582 Removing oil spills
09/25/1986WO1986005510A1 Low-foaming compositions
09/25/1986WO1986005477A1 Liquid membrane system for the removal of nitrate from water
09/25/1986WO1986005413A1 Cross-flow filtration
09/24/1986EP0195297A2 Process and apparatus to close recirculation circuits in water and waste water purification
09/24/1986EP0195160A2 Pool chemical tablet and container
09/24/1986CN86101565A Process and apparatus from waste water remove sulphates
09/24/1986CN85102583A Treatment method and technology for treating sewage from dyeing and printing industry
09/23/1986US4613415 Electrolytic chlorine and alkali generator for swimming pools and method
09/23/1986US4613412 Water reuse in metal plating systems
09/23/1986US4613409 Water treatment
09/23/1986CA1211722A1 Device for the separation of substances contained in a liquid
09/17/1986EP0194290A1 Waste treatment method and device.
09/17/1986CN85105637A Treating dissolved fluorine by adsorption
09/17/1986CN85102296A Method for purification of waste water containing arsenic
09/16/1986US4612247 Magnetic cellulose-derivative structures
09/16/1986US4612126 Clarifying filtering centrifuge and method of use
09/16/1986US4612125 Method for removing heavy metal from wastewater streams
09/16/1986US4612124 Method of sewage treatment
09/16/1986US4612104 Electrochemical cell
09/16/1986US4612090 Water degasification and distillation apparatus
09/16/1986US4612021 Contacting a gas and a liquid to remove an unwanted gas
09/16/1986US4611615 Fluid treatment apparatus and method
09/16/1986CA1211413A1 Method of treating contaminated insoluble organic solid material
09/16/1986CA1211366A1 Fluid diffuser for gases and liquids
09/16/1986CA1211338A1 Insoluble compositions
09/12/1986WO1986005221A1 Method for natural reduction of some injurious substances in upper suboil water magazines
09/10/1986EP0194151A2 Process for the treatment of boiler condensate
09/10/1986EP0194012A1 Control of scale formation
09/10/1986EP0193882A2 Production of peptides containing gamma-glutamic acid unities, cystein-enriched, process for their preparation and their use
09/10/1986EP0193565A1 Apparatus for clarification of water.
09/10/1986CN86101249A Devices for treating water containing calcium carbonate and installation consisting of these devices
09/09/1986US4610848 Device for the dosable addition of a substance to a solvent
09/09/1986US4610801 Compositions comprising mineral particles in suspension and method of treating aqueous systems therewith