Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
11/1984
11/08/1984WO1984004294A1 Plant for the magnetic treatment of water or other similar liquids, of compounds, respectively organic or inorganic chemical mixtures
11/06/1984US4481116 Cationic aminoplastic resin, preparation process and application thereof to water treatment
11/06/1984US4481112 Process of treating gas condensate
11/06/1984US4481096 Pot-typed water purifier with electrolyzer
11/06/1984US4481086 Chlorine from electrolysis of brine
11/06/1984US4481072 Method for recovery of wastewater residues
11/06/1984CA1177586A1 Method for controlling the growth of legionnaires disease bacteria in aqueous systems
11/06/1984CA1177585A1 Treatment of water contaminated with dispersed resin
11/06/1984CA1177439A1 Water degasification and distillation apparatus
10/1984
10/31/1984EP0123390A2 Rotary evaporator
10/31/1984EP0123261A2 Process for electrochemically separating ion mixtures
10/31/1984EP0032944B1 Disinfectant chlorinated cyanurate containing compositions and method of use
10/30/1984US4479917 Use of aminoguanidine compounds as oxygen-scavenging and corrosion-inhibiting agents
10/30/1984US4479879 Process for dewatering sludges
10/30/1984US4479864 Titanium or alloy, platinum, iridium dioxide, ruthenium dioxide
10/30/1984US4479820 Use of polycondensation products from acrolein and formaldehyde as biocide
10/30/1984CA1176850A1 System for automatically dispensing liquid chemicals into an intermittently flowing liquid stream
10/25/1984WO1984004132A1 Water treatment systems
10/25/1984WO1984004087A1 Mobile fluid purification unit
10/24/1984EP0122908A1 Method of separating polluted liquid mixtures
10/24/1984EP0122514A2 Device for delivering at least one concentrate to a solvent in at least one addition step, as well as with the control element
10/24/1984EP0122270A1 Separation of multi-phase systems.
10/23/1984US4478802 Method for cleaning cyanide-bearing gas scrubbing waters produced in metallurgical industry
10/23/1984US4478765 Apparatus for aerating water supplies
10/23/1984US4478736 Composition and process for the treatment of clay slimes
10/23/1984US4478725 Process for the oxidation of hydrogen sulphide dissolved in the waste water from a coal gasification process
10/23/1984US4478724 Cationic adsorption agent
10/23/1984US4478719 Method and apparatus for the separation of fluids by permeation
10/23/1984US4478716 Mixed-bed device for producing pure water
10/23/1984US4478685 Packed column distillation apparatus
10/23/1984CA1176799A1 Resin particulates capable of removing metal ions from aqueous media
10/23/1984CA1176627A1 Apparatus for the extraction of heat from sewage and method for the operation of the said apparatus
10/23/1984CA1176572A1 Reverse osmosis apparatus and method using integral valve
10/23/1984CA1176434A1 Process for the removal of urea, ammonia and carbon dioxide from dilute aqueous solutions
10/17/1984EP0122091A1 A device for cleaning a collecting rope from oil or similar material
10/17/1984EP0121613A1 Single cycle continuous process for preparing oil spill absorbing peat
10/17/1984EP0121548A1 Method and apparatus for treating effluent
10/16/1984US4477357 Detoxification of substances by utilization of ultrasonic energy
10/16/1984US4477347 Portable water purifier
10/16/1984US4476930 A nitrogen-containing salt to prevent deposition
10/16/1984CA1176387A1 Process for treating continuous effluent streams having varying contents of different oxidizable substances with hydrogen peroxide
10/16/1984CA1176386A1 Water clarification
10/16/1984CA1176061A1 Process for separating metals from aqueous solutions
10/16/1984CA1176034A1 Method of treating a liquid material leading to solid waste substances, by the action of a fluid phase and at least one gas phase
10/16/1984CA1176031A1 Process for alumina recovery
10/11/1984WO1984003881A1 A method to purify water
10/11/1984WO1984003880A1 Apparatus for destroying microorganisms
10/10/1984EP0121337A1 Method for purification of sulfuric acid solution
10/10/1984EP0121331A2 Hydrogel-containing envelopes
10/10/1984EP0121235A2 Boiling coolant ozone generator
10/10/1984EP0121099A2 Apparatus for the production of potable liquid from sea water, polluted water and the like
10/09/1984US4475988 Can utilize solar heat
10/09/1984US4475665 Air logic controller and metering pump unit for an apparatus for transferring, pumping and metering liquid chemicals
10/09/1984US4475355 For separating the ice crystals
10/09/1984CA1175950A1 Apparatus and process for treatment of a process flow by ionizing radiant energy beams
10/09/1984CA1175793A1 Treatment of contaminated stretford solution
10/03/1984EP0120039A1 Recovery of solids from dispersions
10/02/1984US4474853 Sorbent comprising spherical particles of activated carbon depositing non-crystalline compound of zirconium and process for preparing thereof
10/02/1984US4474852 Hydrophobic colloidal oxide treated core material, method of production and composition comprised thereof
10/02/1984US4474620 Apparatus for purification of water by ion exchange
10/02/1984US4474031 Heatpump
10/02/1984CA1175364A1 High capacity oil recuperator for de-pollution in rough waters
09/1984
09/27/1984WO1984003693A1 Method and apparatus for ozonizing a fluid
09/27/1984WO1984003692A1 Method for removing heavy metals from aqueous solutions by coprecipitation
09/26/1984EP0119988A2 Process for dewatering sludges and/or organic matter
09/26/1984EP0119987A2 Process for dewatering sludges and/or organic matter
09/26/1984EP0119368A1 Method and apparatus for conditioning potable water
09/25/1984US4473533 Free floating chlorine controlling assembly
09/25/1984US4473477 Method of organic waste disposal
09/25/1984CA1174985A1 Counter-current adsorption filters for the treatment of liquids and a method of operating the filter
09/25/1984CA1174861A1 Selective extraction of gold
09/25/1984CA1174832A1 Method and arrangement for concentrating mineral acids, especially sulphuric acid
09/25/1984CA1174808A1 Method of thickening solutions using normally nongelling clays
09/19/1984EP0119179A1 Pumpable water-purifying compositions containing iron(II) sulphate, and a method for their manufacture
09/19/1984EP0118888A1 A method of separating organic matter from its aqueous solution
09/19/1984EP0118548A1 Ammonia scavenger
09/19/1984EP0118428A1 An improved method and apparatus for recycling energy in counterflow heat exchange and distillation.
09/18/1984US4472284 Flocculation with melamine-formaldehyde resin
09/18/1984US4472283 Use of carbon dioxide to reduce the pH in circulating hard water
09/18/1984US4472281 Method of removing contaminating impurities from leisure pool water
09/18/1984US4472256 Electrolysis of sodium chloride
09/18/1984US4472187 Rapidly dissolving trichloroisocyanuric acid compositions
09/18/1984CA1174636A1 Process for disinfecting water
09/18/1984CA1174552A1 Process for the production of a liquid agent for improving the quality of contaminated water
09/18/1984CA1174474A1 Process for separating metals from aqueous solutions
09/12/1984EP0118210A2 Process for separating suspended material from a fluid
09/11/1984US4471225 Ultraviolet apparatus for disinfection and sterilization of fluids
09/11/1984US4470912 Adsorption of a quaternary ammonium-exchanged clay; water treatment; wastes
09/11/1984US4470911 Water treatment
09/11/1984US4470909 Using a phosphine oxide
09/11/1984US4470907 Continuous polymer feed system for a waste water treatment plant
09/11/1984US4470892 Planar carbon fiber electrode structure
09/11/1984CA1174382A1 Resins for removal of organo-sulfur compounds from organic or aqueous media
09/05/1984EP0117586A1 Process for coagulating and depositing residues of high-solids lacquers
09/05/1984EP0117529A2 Process for the purification of waste water originating from the production of cellulose, especially from bleaching with chlorine
09/05/1984EP0117463A2 Process and apparatus for the gasification and degasification of liquids
09/05/1984EP0117324A1 Metal extraction from solution and immobilized chelating agents used therefor
09/05/1984EP0117315A1 Method for removing cesium from an aqueous liquid, method for purifying the reactor coolant in boiling water and pressurized water reactors and a mixed ion exchanged resin bed, useful in said purification
09/05/1984EP0117300A2 Adsorbent for treating recycling and waste waters in paper making and related industries
09/04/1984US4469628 Radioactive wastes