Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
10/1979
10/02/1979CA1063648A1 Coal slurry feeder
10/02/1979CA1063583A1 Oil adsorbent and a method of producing same
10/02/1979CA1063522A1 Chemical concentration by sequential activated carbon adsorption and fractionation
10/02/1979CA1063317A1 Apparatus and method of disinfection of drinking water
09/1979
09/25/1979US4169053 Method of treating waste waters containing solid-phase difficultly-soluble compounds
09/25/1979US4169052 Process for absorbing hydrocarbons or organic solvents
09/25/1979US4169035 Electrolytic cell for treatment of water solutions
09/25/1979US4169029 Method for electrical purification and decontamination of liquids and apparatus for effecting same
09/25/1979US4168670 Incineration of lime-conditioned sewage sludge with high sulfur fuel
09/25/1979CA1063276A1 Nitrogenous condensation products
09/25/1979CA1063265A1 Liquid aeration device
09/25/1979CA1063264A1 Phosphate stripping of sewage
09/25/1979CA1063103A1 Mixed alkali metal-magnesium salt of crosslinked starch xanthate and process of preparation
09/25/1979CA1063064A1 Electrolyzers with bipolar electrodes
09/25/1979CA1063063A1 Process and apparatus for removing metallic ions from an electrolytic solution
09/25/1979CA1063062A1 Method and apparatus for electrosanitizing waste water
09/25/1979CA1063037A1 Moving bed-upflow water purifier
09/25/1979CA1063036A1 Chemical concentration by activated carbon adsorption
09/19/1979EP0004217A1 Process for the bactericidal and biostatical treatment of a polluted medium
09/18/1979US4168299 To carbon dioxide and ammonia; vanadium oxide catalyst
09/18/1979US4168232 Method and apparatus for recycling water in a car wash
09/18/1979US4168231 Method and apparatus for recycling water in a car wash
09/18/1979US4168228 Waste water purification
09/18/1979US4168211 Distillation apparatus and method
09/18/1979US4167973 Mixing with oxidizing agent or bactericide
09/18/1979CA1062821A1 Reactor for purification of water by fluid filtration
09/18/1979CA1062689A1 Waste water treating material
09/18/1979CA1062648A1 Liquid waste processing system
09/18/1979CA1062627A1 Coalescence of oil in oil/water emulsions
09/18/1979CA1062447A1 Elimination of odors from organic wastes
09/11/1979US4167481 Process for the removal of metals from solution
09/11/1979US4167480 Process for de-salting of water and apparatus for performing this process
09/11/1979US4167466 Ozone generation apparatus and method
09/11/1979CA1062380A1 Waste water treatment
09/11/1979CA1061977A1 Buoyant solid cover for ponds and method of making the same
09/05/1979EP0003904A1 Improvements in or relating to desalination apparatus and method
09/05/1979EP0003879A1 Apparatus for sanitising liquids
09/05/1979EP0003862A1 Process for the removal of heavy metals from aqueous liquids
09/04/1979US4166793 For water systems
09/04/1979US4166769 Solar heat apparatus
09/04/1979CA1061945A1 Amino alkylene phosphoric acid resins, their use and preparation
09/04/1979CA1061918A1 Method for the disposal of waste water containing ammonium ions, sulfate ions and organic substances
08/1979
08/28/1979US4166037 Water treatment
08/28/1979US4166032 Method and apparatus for removing heavy metals from waste water streams
08/28/1979US4165952 Heat energized vapor adsorbent pump
08/28/1979US4165759 Delivering measured quantities of liquid into a fluid
08/28/1979CA1061260A1 Process and treating equipment of polluted effluent by means of colloidal emulsions
08/28/1979CA1061189A1 Method of disposing of waste water containing emulsified oil
08/22/1979EP0003607A2 Regeneration of granular material contained in a column
08/21/1979US4165401 Recovery of suspended particulate metal from quench water
08/21/1979US4165289 Self-sufficient heat treatment
08/21/1979US4165288 Filtration; reverse osmosis
08/21/1979US4165273 Device for producing deeply desalted water
08/21/1979US4165217 Halohydrocarbon treatment of a glycol and waste dye liquor followed by water extraction of the glycol
08/21/1979US4164854 Desalination method with mercury refrigerant
08/21/1979CA1060874A1 Process for producing oil-absorbing materials
08/14/1979US4164653 Dimer or trimer of chlorotrifluoroethylene
08/14/1979US4164574 Use of polyquaternary ammonium methylene phosphonates as microbiocides
08/14/1979US4164482 Organic polymer epitactically linked to inorganic absorbent
08/14/1979US4164469 Method of cleaning phenol-containing waste waters
08/14/1979CA1060593A1 High pressure thermal hydrolysis process to decompose triazines in acid waste streams
08/14/1979CA1060592A1 Clarification of turbid waters
08/14/1979CA1060591A1 Method for removing phosphates from aqueous solutions
08/14/1979CA1060589A1 Treatment of solids-liquid-gas mixtures
08/14/1979CA1060375A1 Apparatus for desalinating sea water
08/14/1979CA1060334A1 Flash vaporization water disposal system
08/08/1979EP0003327A2 Process for the chemical-mechanical treatment and/or purification of ground, surface or waste waters
08/08/1979EP0003216A1 Process and apparatus for the thermal treatment of aqueous sludges, especially sewage sludges
08/07/1979US4163720 Apparatus for the biological purification of waste water
08/07/1979US4163718 Complexing agents for phenolics
08/07/1979US4163717 Removal of silica from mixed bed demineralizer
08/07/1979US4163716 Process for the purification of contaminated water
08/07/1979US4163715 Method for treatment of waste water
08/07/1979US4163712 Treatment of liquid
08/07/1979US4163664 Process for precipitating precious metals from solutions which contain them
08/07/1979CA1059926A1 Purification of papermarking waste water using pulp stock rejects as filter aid
08/07/1979CA1059922A1 Oil removal structure and a method of manufacturing
07/1979
07/31/1979US4163043 Treatment with ammonia and alkali metal hydroxide to form sulfides and carbonates, reaction with copper oxide to form copper sulfide, roasting
07/31/1979US4162950 Treatment of effluents
07/31/1979US4162945 Desalinization of sea water
07/31/1979US4162902 Countercurrent solvent extraction, stripping
07/31/1979CA1059663A1 Metal cyanide complex compound disposal
07/31/1979CA1059661A1 Decolorization of effluents from pulp mills
07/31/1979CA1059658A1 Method for treating septic tank effluent seepage beds and the like
07/31/1979CA1059307A1 Method for solidifying liquid radioactive wastes
07/31/1979CA1059291A1 Water purification system
07/25/1979EP0003119A1 Floculating agent for waste water purification and process of preparing it
07/24/1979US4162187 Process for production of sodium thiosulfate and sodium hydroxide
07/24/1979US4162147 Apparatus for treating effluents
07/24/1979CA1059038A1 Separation of carbon black by thick oil
07/17/1979US4161447 Process for treating waste water containing radioactive substances
07/17/1979US4161446 Process for the treatment of ground water
07/17/1979US4161435 Process and apparatus for reducing the level of contaminants in aqueous electrolytes containing the same
07/17/1979CA1058777A1 Method of effluent sludge treatment
07/17/1979CA1058525A1 Membrane separation of phenols from aqueous streams
07/11/1979EP0002928A1 Removal of solids from a wet oxidation reactor
07/11/1979EP0002880A2 Regeneration of an absorbent liquid
07/11/1979EP0002858A1 Sanitation process and apparatus for continually overloaded water treatment plants
07/11/1979EP0002769A1 Process for biological purification of waste water
07/11/1979EP0002704A1 Method for removing mud from waters