Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
01/1983
01/05/1983EP0068895A2 Water softener control
01/05/1983EP0068760A1 Magnetic water-conditioning device
01/05/1983EP0068582A2 Purification process of water containing organic pollutants
01/05/1983EP0068522A1 Process and apparatus for the synthetic preparation of ozone by electrolysis, and its application
01/05/1983EP0068458A2 Process for treating continuous waste water streams containing variable contents of oxidizable compounds with hydrogen peroxide
01/05/1983EP0068225A1 Use of water-soluble polymers of Di-C1-C3 alkyl-amino-neopentyl-(meth)acrylates as retention, dewatering and flocculating agents
01/04/1983US4367410 Waste purification apparatus and method
01/04/1983US4367215 Method of acid leaching of silicates
01/04/1983US4367149 Water purification process
01/04/1983US4367143 Apparatus for magnetically treating liquid flowing through a pipe and clamping means therefor
01/04/1983US4367140 Reverse osmosis liquid purification apparatus
01/04/1983CA1139025A1 Method and apparatus for treating heterogeneous fluid systems
12/1982
12/29/1982EP0067940A1 Sea water desalination unit
12/29/1982EP0067870A1 Removal of hydrocarbon compositions
12/28/1982US4366272 Method for recovering synthetic resin emulsion
12/28/1982US4366128 Removal of arsenic from aqueous solutions
12/28/1982US4366090 Process for the preparation of adsorbent materials
12/28/1982US4366067 Method and apparatus for removal and recovery of oil
12/28/1982US4366064 Treatment of blast furnace wastewater
12/28/1982US4366063 Process and apparatus for recovering usable water and other materials from oil field mud/waste pits
12/28/1982US4366053 Magnetic liquid treating device
12/28/1982US4366030 Subatmospheric pressure distillation and/or cooling method and means
12/28/1982US4365979 Water producing apparatus
12/28/1982CA1138442A1 Process for combating micro-organisms, and novel phthalocyanine compounds
12/28/1982CA1138349A1 Removal of toxic and odorous organics from waste water by saturated activated carbon
12/23/1982WO1982004481A1 Apparatus for preventing bacterial passage
12/23/1982WO1982004435A1 Process and apparatus for recovering usable water and other materials from oil field mud/waste pits
12/23/1982WO1982004404A1 Paired stage flash evaporator having improved distillate collection
12/23/1982WO1982004403A1 Paired stage flash evaporator having improved configuration
12/22/1982EP0067647A1 Cationic polymer flocculant
12/22/1982EP0067212A1 Para-anisole-containing biocide and methods for its isolation and use
12/21/1982US4364835 Dechlorination of chlorinated water
12/21/1982US4364834 Sedimentation apparatus having an improved skimming mechanism
12/21/1982US4364828 Apertures for fitting and sealing in case
12/21/1982US4364814 Apparatus for the production of aqueous alkali metal hypochlorite
12/21/1982US4364773 Demetallization of waste water to yield filler for asphalt paving
12/21/1982US4364747 System for regenerative thermally reversed adsorption
12/15/1982EP0066611A1 Selective rheological separation of clays.
12/15/1982EP0030535B1 Method and device in manufacturing foamed urea formaldehyde material to be used as a sorbent
12/15/1982EP0016002B1 Prevention of solute deposition fouling in membrane processes
12/14/1982US4363886 Preparation of amphoteric water-in-oil self-inverting polymer emulsion
12/14/1982US4363749 Water clarification coagulant/adsorbent
12/14/1982US4363734 1,3-Dihydroxy acetone as an oxygen scavenger for water
12/14/1982US4363733 Process for water treatment by flocculation
12/14/1982US4363732 Inlet and outlet baffle structure for sewage treatment tanks
12/14/1982US4363728 Automatic chlorinator for swimming pools
12/14/1982US4363713 Electrolytic halogen generators
12/14/1982US4363703 Thermal gradient humidification-dehumidification desalination system
12/14/1982US4363215 Catalytic oxidation with hydrogen peroxide
12/14/1982CA1137660A1 Water purifying apparatus
12/14/1982CA1137657A1 Method for sewage treatment with bacteria
12/14/1982CA1137458A1 Highly absorptive macroporous polymers
12/14/1982CA1137420A1 Geothermal brine treatment
12/09/1982WO1982004197A1 Mobile fluid purification system
12/08/1982EP0066544A1 Water treatment
12/08/1982EP0066421A1 Purification of water
12/08/1982EP0066417A1 Method of clarifying proteinaceous waste water containing solid impurities
12/08/1982EP0066290A2 Process for the preparation of an inorganic liquid aqueous floculating agent
12/08/1982EP0065983A1 Sewage treatment system
12/07/1982US4362643 Coagulants, water treatment
12/07/1982US4362631 Special trawl net for collecting floating products
12/07/1982US4362629 Method for processing solution including heavy metal
12/07/1982US4362628 Flocculation of particles in water
12/07/1982US4362627 Cellular flow system and method
12/07/1982US4362626 Ion exchanger of hydrated oxide of Ti, Zr, or Sn and cured polyester, and exchange method
12/07/1982CA1136830A1 Conversion of extraction residues originating from phosphoric acid decontamination to solid deposition products
12/07/1982CA1136804A1 Method of protecting organic or inorganic material from attack by microorganisms
12/01/1982EP0065687A2 Process to carry out catalytic reactions in an aqueous medium
11/1982
11/30/1982US4361555 α-1,4-Thiazine alkanephosphonic acids
11/30/1982US4361505 Process for treating radioactive waste
11/30/1982US4361493 Hydrophilic substrate for sorbing heavy metals
11/30/1982US4361487 Control of hydrogen sulfide emission from geothermal steam plants with hydrogen peroxide and sodium vanadate
11/30/1982US4361486 Filter media, method for oxidizing and removing soluble iron, method for removing and inactivating microorganisms, and particulate filter aid
11/30/1982US4361471 Electrolytic swimming pool chlorination
11/30/1982CA1136779A1 Bubble generation and distribution nozzle
11/30/1982CA1136575A1 Sea - or brackish water desalination apparatus
11/30/1982CA1136383A1 Separation of an aqueous solution by the improved vacuum freezing high pressure ice-melting process
11/25/1982WO1982003994A1 Method and apparatus for the purification of water
11/25/1982EP0056054A4 Water purification system.
11/24/1982EP0065490A1 Method of modifying the salt concentration of liquids
11/24/1982EP0065489A1 Method of modifying the salt concentration of liquids
11/24/1982EP0065332A1 Apparatus and method for the concentration of a liquid by evaporation
11/24/1982EP0065258A2 Process for thickening solutions using clays which do not normally form gels
11/23/1982USRE31087 Method for separating oil from water
11/23/1982US4360508 Treatment of effluents
11/23/1982US4360448 Organonitrogen ion exchange compound
11/23/1982US4360427 Submersible water clarifiers
11/23/1982US4360417 Dimensionally stable high surface area anode comprising graphitic carbon fibers
11/23/1982CA1135938A1 Synthetic imogolite
11/17/1982EP0064722A2 Process for the purification of mixtures containing water, salts, glycolate ions and organic solvents, and the application of this process to the preparation of alkali carboxymethyl polysaccharide ethers
11/17/1982EP0064647A1 Filter media, method for oxidizing and removing soluble iron, method for removing and inactivating microorganisms, and particulate filter aid
11/16/1982EP0059205A4 Fluid treatment apparatus.
11/16/1982CA1135680A1 Removing halogenated hydrocarbons from aqueous media by utilizing a polyolefinic microporous adsorbent
11/16/1982CA1135653A1 Apparatus for treatment of ammoniacal waste liquid
11/11/1982WO1982003850A1 Device for aerating waste waters to be purified
11/10/1982EP0064279A1 Process and apparatus for the treatment of sludge originating from chemical purification of waste water
11/10/1982EP0064252A1 A process for the treatment of the effluent waters of mine extractive industries
11/09/1982US4358625 Method for the production of high-purity ethylene glycols
11/09/1982US4358382 Use of quaternized derivatives of polymerized pyridines and quinolines as water clarifiers
11/09/1982US4358360 Dewaxing process