| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
|---|
| 07/14/1993 | CN2137907Y Mineral magnetizing cup |
| 07/14/1993 | CN1074198A Permanent magnet separation facility for treating waste water of iron and steel plant |
| 07/13/1993 | US5227184 Method for sanitizing food products |
| 07/13/1993 | US5227140 Modular self-cleaning oxidation chamber |
| 07/13/1993 | US5227089 Method for producing flocculant for water treatment |
| 07/13/1993 | US5227072 Method of recovering oil-based fluid |
| 07/13/1993 | US5227071 Method and apparatus for processing oily wastewater |
| 07/13/1993 | US5227056 Apparatus for improving the quality of a large amount of water and the quantity of dissolved oxygen therein |
| 07/13/1993 | US5227053 Water purification system |
| 07/13/1993 | US5227052 Water conditioning apparatus having reaction plates coupled to an astable oscillator |
| 07/13/1993 | US5227027 Liquid refrigerant accumulation, expansion, vaporization, compression, condensation, returning; feed water supplying, preheating, conveying in water evaporator, heating, blow down purification, condensation in water condenser |
| 07/13/1993 | CA1320288C Detoxification of waste water from dithiocarbamate manufacture |
| 07/13/1993 | CA1320287C Gas transfer device and flotation compartment used in a water purification process |
| 07/13/1993 | CA1320286C Grease trap system |
| 07/13/1993 | CA1320151C Process for separating substances from a liquid and device for carrying out the process |
| 07/13/1993 | CA1320139C Treatment of emulsions |
| 07/13/1993 | CA1320112C Paint spray booth treatment |
| 07/13/1993 | CA1320029C Process for cleaning chlorinated water and an apparatus for carrying out the process |
| 07/08/1993 | WO1993013081A1 Novel 3-halo-5-halomethyl-2-oxazolidinones and their use as microbicides |
| 07/08/1993 | WO1993013022A1 Method of introducing hydrogen into aqueous liquids without forming bubbles |
| 07/08/1993 | WO1993013021A1 Process and electrochemical reactor for purifying contaminated liquids |
| 07/08/1993 | WO1993013020A1 Piping system for supplying ultrapure water |
| 07/08/1993 | WO1993013019A2 Water-treatment and conditioning apparatus and method |
| 07/08/1993 | WO1993013018A2 Particulate material suitable for the removal of heavy metals |
| 07/08/1993 | WO1993012864A1 Reverse osmosis system for home use |
| 07/08/1993 | WO1993012857A1 Method of recovery of printing ink wastes |
| 07/08/1993 | WO1993011281A3 Electrochemical cell |
| 07/08/1993 | DE4200133A1 New poly-3,4-di:methylene-pyrrolidinium salts - useful as demulsifiers, flocculants, etc., prepd. from di:allyl-ammonium salt and bi:sulphate |
| 07/08/1993 | DE4141993A1 Verfahren und einrichtung zur aufarbeitung von oel-wasser-emulsionen Method and device for regeneration treatment of oil-water emulsions- |
| 07/08/1993 | CA2126439A1 Method of introducing hydrogen into aqueous liquids without forming bubbles |
| 07/08/1993 | CA2125498A1 Method of recovery of printing ink wastes |
| 07/07/1993 | EP0550152A1 Treatment of water with ozone |
| 07/07/1993 | EP0550023A2 Non-polluting compositions to degrade hydrocarbons and microorganisms for use thereof |
| 07/07/1993 | EP0549608A1 Methods for control and mitigation of molluscs |
| 07/07/1993 | CN2137660Y Device for mineralizing, magnetizing and purificating treatment of running water |
| 07/07/1993 | CN2137659Y Water purifier |
| 07/07/1993 | CN2137485Y Whistling magnetic kettle |
| 07/07/1993 | CN1073890A Liquid sorbent |
| 07/07/1993 | CA2070363A1 Process for treatment of wastewater containing inorganic ammonium salts |
| 07/06/1993 | USH1206 Cascade crossflow tower |
| 07/06/1993 | US5225340 Process for reducing metal concentration in aqueous systems |
| 07/06/1993 | US5225159 Deodorization of sewage sludge-derived oils |
| 07/06/1993 | US5225088 Use of nonhydrolyzed copolymers containing n-vinylformamide units as flocculants and drainage aids |
| 07/06/1993 | US5225087 Recovery of EDTA from steam generator cleaning solutions |
| 07/06/1993 | US5225086 Process for the treatment of wash water from the gas washing system of an iron ore reduction plant |
| 07/06/1993 | US5225078 Pour-through pitcher filter |
| 07/06/1993 | US5225074 Automatic swimming pool chlorinator |
| 07/06/1993 | US5225073 Apparatus for separating contaminant from water |
| 07/06/1993 | US5225054 Method for the recovery of cyanide from solutions |
| 07/03/1993 | CA2058674A1 On-line rejuvenation of spent adsorbents |
| 07/01/1993 | DE4143107A1 Chemical treatment of liq(s). esp. contaminated waters - comprises intimately mixing with liq. or gaseous reagent, pressure is then increased, liq. is mixed with body of untreated liq. |
| 07/01/1993 | DE4142749A1 Desalinating appts. for sea or brackish water - has electrolysis chambers interlinked with ion conductive dividing plates made of sand and cement |
| 06/30/1993 | EP0549413A1 Water treatment process for eliminating viruses and pesticides |
| 06/30/1993 | EP0548242A1 Water treatment process by electrolysis, in particular, for water decarbonation, and apparatus for carrying out this process. |
| 06/30/1993 | EP0548107A1 Effluent treatment. |
| 06/30/1993 | EP0548106A1 Effluent treatment. |
| 06/30/1993 | EP0464066B1 Process for the decomposition of waste absorption solutions |
| 06/30/1993 | CN2137264Y Multifunctional indoor magnetizing water tank |
| 06/30/1993 | CN2137253Y Combined water softening equipment |
| 06/30/1993 | CN2137252Y Effective mineralizing, super filtrating, magnetizing and purifying device for water |
| 06/30/1993 | CN2137123Y Strong magnetic thermal bottle cork |
| 06/30/1993 | CN2137122Y Magnetized kettle lid |
| 06/30/1993 | CN2137115Y Strong magnetized and mineralized cup |
| 06/30/1993 | CN1073666A High-effective treating process of glue wastewater |
| 06/30/1993 | CN1073665A Process to treat waste water containing organophosphorus compounds, especially sulfonated arylphosphine |
| 06/30/1993 | CN1073664A Electronic high-effective saline-alkali water treating device |
| 06/30/1993 | CN1073663A Washing and dyeing wastewater treatment and renovation |
| 06/30/1993 | CN1073612A Orbital tube evaporator with improved heat transfer |
| 06/30/1993 | CN1021429C Process for catalytic treatment of wastewater |
| 06/29/1993 | US5223175 Dispersed aqueous solution of glyoxal and acetic acid or sodium acetate buffer, saturated liquid hydrocarbon, emulsifier |
| 06/29/1993 | US5223154 Controlling water pollution |
| 06/29/1993 | US5223150 Water reclamation system and method |
| 06/29/1993 | US5223149 Trivalent silver water treatment compositions |
| 06/29/1993 | US5223144 Precipitation of heavy metal compounds by adjusting ph and addition of organic or inorganic salts, for purification of spent antifreezes or heat exchanging fluids |
| 06/29/1993 | US5223132 Water filtering apparatus |
| 06/29/1993 | US5223130 Device for organic neutralization and removal of phosphorus compounds present in water basins |
| 06/29/1993 | US5223105 Ultraviolet lamp, means to direct flow of oxygen-containing gas through zone of exposure to ultraviolet radiation and high voltage, low current electric field |
| 06/29/1993 | US5223088 Apparatus for producing concentrated aqueous slurries and spray dried particulate products |
| 06/29/1993 | CA2015879C Process for treatment of water and apparatus therefor |
| 06/29/1993 | CA1319626C Flexible filter element employing filtering sheets formed with bypass openings |
| 06/29/1993 | CA1319606C Control of biofouling in aqueous systems by non-polymeric quaternary ammonium polyhalides |
| 06/29/1993 | CA1319489C Sterilized aerosol container having an aqueous saline solution therein and the method for sterilizing the container |
| 06/25/1993 | WO1993012861A1 Filter medium and filter which use animal fibers |
| 06/25/1993 | CA2104588A1 Filter medium and filter which use animal fibers |
| 06/25/1993 | CA2085432A1 Non-polluting compositions to degrade hydrocarbons and microorganisms for use thereof |
| 06/24/1993 | WO1993012041A1 Improved method of reducing the levels of heavy metals in wastes |
| 06/24/1993 | WO1993012040A1 Apparatus for subjecting a flowable material, such as a fluid and particularly a liquid, to the effect of a magnetic field |
| 06/24/1993 | WO1993011846A1 Method and device for treating oil/water emulsions |
| 06/24/1993 | DE4142629A1 Chemical cleaning bath waste water evapn. - by using hollow body with external flame heating for simple action with easy cleaning and heat for stations |
| 06/24/1993 | DE4142502A1 Blasenfreier wasserstoffeintrag in waessrige fluessigkeiten Bubble-free hydrogen entry in aqueous fluids |
| 06/24/1993 | DE4142207A1 Removing halogenated hydrocarbon from fluid - by contacting with ring cpd. formed by reacting aldehyde with aromatic hydroxy cpd. or urea cpd. |
| 06/24/1993 | DE4141889A1 Heavy metal removal from solid waste e.g. power station fly ash - by forming an aq. slurry of the material, adding chitosan or tannin as chelating agent, standing and sepg. the solid from the heavy metal-contg. soln. etc. |
| 06/24/1993 | DE4141639C1 Prodn. of humus-like substrate from purified sewage - comprises using solid sewage residue to condition sewage and reduce incandescence |
| 06/23/1993 | EP0547720A2 Polymer containing chelating groups, process for preparing it and its use in water purification |
| 06/23/1993 | EP0547521A1 Process for the precipitation of aqueous polymer dispersions containing polyvinylalcohol |
| 06/23/1993 | EP0547487A1 Process for treating waste waters containing organic phosphor derivatives, especially sulfonated arylphosphines |
| 06/23/1993 | EP0547353A2 Method and apparatus for treating wastes from metallworking of ferromagnetic materials |
| 06/23/1993 | EP0547318A1 Process for oxidizing aromatic and aliphatic compounds |
| 06/23/1993 | EP0547284A1 Method for the recovery of calcium fluoride and ammonia from aqueous ammonium fluoride solution originating from waste from fuel element production |
| 06/23/1993 | EP0547236A1 Green juice or dry powder thereof |