| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
|---|
| 05/17/1990 | WO1990005118A1 Solar aquatic method and apparatus for treating waste |
| 05/17/1990 | WO1990005117A1 Treatment of activated sludge |
| 05/17/1990 | WO1990005115A1 Phosphonic acids and their uses in separation |
| 05/17/1990 | WO1990005011A1 Water purifying method and apparatus |
| 05/17/1990 | DE3838671A1 Process and plant for converting pollutant-containing dusts into landfillable form |
| 05/17/1990 | CA2003100A1 Rapid degradation of halogenated hydrocarbons by soluble methane monooxygenase or methanotrophic bacteria comprising same |
| 05/16/1990 | EP0368147A1 Process and apparatus for treating organic sludge |
| 05/16/1990 | EP0367774A1 Reverse osmosis apparatus. |
| 05/16/1990 | CN2057090U Temp.-regulated type twin shower nozzle magnetothereapeutic shower appliance |
| 05/16/1990 | CN1007971B Magnetization treater for fluid |
| 05/16/1990 | CN1007965B Composite porous matercal, process for production and separation of metallic |
| 05/16/1990 | CN1007964B Adsorbent for recovery of bromine and bromine-recovering process using the same |
| 05/16/1990 | CA2003049A1 Water purification device |
| 05/15/1990 | US4925645 From sodium chlorite and citric or lactic acid |
| 05/15/1990 | US4925643 Regeneration of nitrous acid by oxidation with direct application of heated nitric acid |
| 05/15/1990 | US4925639 Removal of nitric oxide from waste gases and recovery as nitric acid |
| 05/15/1990 | US4925582 Methods and compositions for potentiating the activity of antimicrobal agents in industrial water based fluids |
| 05/15/1990 | US4925571 Heating |
| 05/15/1990 | US4925569 Process for sorption and catalytic oxidation of sulfides in water |
| 05/15/1990 | US4925565 Process for extracting and disposing of nitrophenolic by-products |
| 05/15/1990 | US4925563 Liquid waste processing apparatus |
| 05/15/1990 | US4925551 Portable water purification system including electronic memory panel assembly |
| 05/15/1990 | US4925541 Electodeionization apparatus and method |
| 05/15/1990 | US4925540 Catalytic oxidation to produce hydrogen |
| 05/15/1990 | US4925343 Mixture of wood fibers and cotton linters |
| 05/15/1990 | CA1269184A1 Stimulation of biooxidation processes in subterranean formations |
| 05/15/1990 | CA1269183A1 Method for decontaminating a permeable subterranean formation |
| 05/10/1990 | DE3838046A1 Method for thermal disinfection |
| 05/10/1990 | DE3837905A1 Method and device for treating liquids and/or gases by means of UV light sources |
| 05/09/1990 | EP0367756A1 Process and apparatus for the denitrification of liquids |
| 05/09/1990 | EP0367634A2 Process of preserving aqueous systems with 1-Methyl-3,5,7-triaza-1-azoniatricyclodecane triiodide |
| 05/09/1990 | EP0367420A1 Water purifier applicable to running water system |
| 05/09/1990 | EP0366843A1 Flocculation of suspended solids from aqueous solutions |
| 05/09/1990 | EP0366724A1 Barometric direct-contact condenser. |
| 05/09/1990 | CN1041927A Method of treating penicillin waste water |
| 05/08/1990 | US4923629 Method and flocculant for water treatment |
| 05/08/1990 | US4923619 Disinfectant compositions and disinfection process applicable to infected liquids or surfaces |
| 05/08/1990 | US4923618 Skimmer, tablets, tapering, shells, apertures, dissolving, whirling |
| 05/08/1990 | US4923600 Water clarification system adapted for removing particulate matter of greater than a predetermined size |
| 05/08/1990 | US4923599 Waste water treatment apparatus |
| 05/08/1990 | CA1268867A1 Water-deionizing system |
| 05/08/1990 | CA1268698A1 Green-house curtain |
| 05/03/1990 | WO1990004455A1 Oil spill absorbent material |
| 05/03/1990 | WO1990004454A1 A device for irradiating flowing liquids and/or gases with ultraviolet light |
| 05/03/1990 | DE3935941A1 UV irradiation of flowing fluids by directional sources - aimed at terminal outlets and spanning conduit at regular intervals |
| 05/03/1990 | DE3905227C1 Heat exchangers for sewage sludge |
| 05/03/1990 | DE3836850A1 Process and apparatus for purifying waters of oxidisable carbon compounds contained therein |
| 05/03/1990 | DE3831419A1 Method and device for the germicidal treatment of free-flowing goods |
| 05/02/1990 | EP0366457A2 Germicidal composition |
| 05/02/1990 | EP0366429A2 Improvements in apparatus and process to separate and remove extraneous matter from a liquid stream |
| 05/02/1990 | EP0366388A1 Method for producing aqueous solutions of basic poly aluminum sulphate |
| 05/02/1990 | EP0366317A1 Method and apparatus for improving the quality of a large amount of water |
| 05/02/1990 | EP0366231A1 Sealed PVA package with activated carbon and its use in waste water treatment |
| 05/02/1990 | EP0365887A2 Filter cartridge for a liquid-filtration apparatus, especially for water filters |
| 05/02/1990 | EP0365850A1 Method for treating an amine-containing waste water |
| 05/02/1990 | EP0365635A1 Process for decolorizing aqueous sugar solutions via adsorbent resins, and desorption of color bodies from the adsorbent resins. |
| 05/02/1990 | EP0215013B1 Magnetic conditioning of hard water |
| 05/02/1990 | CN2056607U Composite floating bed ion-exchanger |
| 05/02/1990 | CN1041799A Treatment of paper-making black waste liquid and degumming liquid for ramie |
| 05/02/1990 | CN1041743A Preparation of fzc coagulant for treating sewage |
| 05/02/1990 | CN1041742A Extraction method for treating acid wash waste liquid of rolled steel |
| 05/02/1990 | CN1041741A Method for treating cyanide containing waste water |
| 05/02/1990 | CN1041712A Centrifugal water-wheel machine for releasing dissolved gas |
| 05/02/1990 | CN1041703A Apparatus for separation of ferromagnetic materials from fluid media |
| 05/02/1990 | CN1007829B Method for removing sulfate from electrolytic brine |
| 05/01/1990 | US4922114 In liquid purification apparatus |
| 05/01/1990 | US4921613 Method for purifying resin-containing waste liquor in the manufacture of cellulose pulps |
| 05/01/1990 | US4921605 Apparatus to depollute bodies of water |
| 05/01/1990 | US4921604 Upflow biological reator waste water treatment system |
| 05/01/1990 | US4921598 Selector valve, especially a central control valve for a water treatment device |
| 05/01/1990 | US4921589 Photooxidation |
| 05/01/1990 | US4921580 Solar water distiller |
| 05/01/1990 | CA1268416A1 Method for treating air-cooling systems's aqueous medium |
| 04/26/1990 | DE3836332A1 Use of 3-cyclohexyl-5,6-(trimethylene)uracil and/or 3-tert-butyl-5-chloro-6-methyluracil to change the biological water quality of open waters |
| 04/26/1990 | DE3836155A1 Electrode device for high-frequency electrodes |
| 04/26/1990 | DE3835938A1 Plant for the continuous treatment of contaminated water |
| 04/25/1990 | EP0364815A2 Recovery of BF3 from olefin oligomer process |
| 04/25/1990 | EP0364542A1 An electronic controller for a water purifying unit. |
| 04/25/1990 | EP0364453A1 Method and apparatus for purification of liquid mediums, especially waste water. |
| 04/25/1990 | CN2056360U Multi-function filter |
| 04/25/1990 | CN1041627A Treatment for paper making black liquor and comprehensive utilizing method |
| 04/25/1990 | CN1041578A Electrolyzer for purification of fluids |
| 04/24/1990 | US4920107 1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, and their use in the control of microorganisms in aqueous systems |
| 04/24/1990 | US4920105 Membrane pouch |
| 04/24/1990 | US4919820 Oil absorption method |
| 04/24/1990 | US4919819 Method for removing and decomposing hydrocarbon compounds from water contaminated therewith |
| 04/24/1990 | US4919814 System and method for treating wastewater collected from septic tanks and similar installation |
| 04/24/1990 | US4919813 And alcohols by adding photosynthetic bacteria, exposure to radiation to convert to hydrogen and carbon dioxide |
| 04/24/1990 | US4919775 Circulating currents carry gas bubbles and flocs to surface; breaking bubbles by sprinkling them with sludge; efficiency |
| 04/24/1990 | US4919763 Apparatus for converting sewage sludge filter cake by pyrolysis |
| 04/24/1990 | US4919343 Anti-flooding sewage grinder pump liquid level control system in separately mounted canister |
| 04/24/1990 | US4919314 Time control device for water conditioning apparatus |
| 04/24/1990 | CA2001216A1 Apparatus and process to separate and remove extraneous matter from a liquid stream |
| 04/19/1990 | WO1990003950A1 Waste-water purification installation |
| 04/19/1990 | WO1990003949A1 Improved apparatus and method for treatment and disposal of infectious waste |
| 04/19/1990 | WO1990003948A1 Fluid processing and conditioning method and apparatus |
| 04/19/1990 | WO1990003947A1 Process for removing ammonia and phosphorus from a wastewater |
| 04/19/1990 | WO1990003946A1 System for treating water by synergy of reactivation with cavitation |
| 04/19/1990 | WO1990003945A1 Removing hazardous contaminants from water |
| 04/19/1990 | DE3842238A1 Process for deoiling oil-polluted water |