| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 11/19/1998 | DE19720718A1 Processing of animal e.g. pig slurry comprises evaporation using heat derived from friction and enriching with minerals and organic substances |
| 11/19/1998 | DE19719539A1 Solid separation from suspension by induced air flotation |
| 11/19/1998 | CA2289734A1 Process for the removal of pentavalent arsenic from water |
| 11/19/1998 | CA2288931A1 System and method for channeled freeze processing of non-solid materials |
| 11/18/1998 | EP0878561A2 Process and apparatus for the regeneration of tin plating solutions |
| 11/18/1998 | EP0877721A1 Method for treating aqueous liquid effluents containing organic and inorganic materials to enable recycling thereof |
| 11/18/1998 | EP0877714A1 Treatment of alkaline rinse water by reverse osmosis following neutralisation with biogenic carbon dioxide |
| 11/18/1998 | EP0877639A1 Hydrous pyrolysis/oxidation process for in situ destruction of hydrocarbon contaminants |
| 11/18/1998 | EP0814885B1 Method and apparatus for separating non-soluble particles from a liquid |
| 11/18/1998 | EP0760804B1 Apparatus and method for separation of contaminants floating on the surface of a liquid |
| 11/18/1998 | EP0746404B1 Process for recovering guanidine salts |
| 11/18/1998 | CN2297447Y 饮水供应器装置 Drinking water supply device |
| 11/18/1998 | CN1199386A Biological method of treating sewage contg. high concentrations of sludge |
| 11/18/1998 | CN1199350A Method of oxidation |
| 11/18/1998 | CN1199114A Washing machine capable of dechlorinating washing water and dechlorinating method thereof |
| 11/18/1998 | CN1199022A Mine water underground clarification system |
| 11/18/1998 | CN1199021A Liquid purification apparatus |
| 11/18/1998 | CN1040738C Process for purification of aqueous solution of alkali chloride to remove iodine |
| 11/17/1998 | US5837776 Saturated solution of ammonium, alkali metal, or alkaline earth metal halide, phosphate or sulfate; flocculants |
| 11/17/1998 | US5837644 Charging a decompressed container with carbon and trimethylchlorosilane for silicon carbide |
| 11/17/1998 | US5837149 Method for hot and supercritical water oxidation of material with addition of specific reactants |
| 11/17/1998 | US5837148 Nitrate recovery plant |
| 11/17/1998 | US5837147 Methods and apparatus for controlling the draining of water from a water purifier |
| 11/17/1998 | US5837146 Oil coagulant products and methods of use therefor |
| 11/17/1998 | US5837145 Method for treating water contaminated with cyanide |
| 11/17/1998 | US5837143 Process and device for the magnetic treatment of a fluid |
| 11/17/1998 | US5837142 Membrane process for treating sanitary wastewater |
| 11/17/1998 | US5837136 Mineral eluting material and manufacturing method thereof, and structural body of mineral eluting material |
| 11/17/1998 | US5837134 Scale reduction |
| 11/17/1998 | US5837124 Method and apparatus for preventing scale from precipitating in producing deionized water |
| 11/16/1998 | CA2237536A1 Water filtration device and related filter cartridge |
| 11/12/1998 | WO1998050626A2 Method and device for separating the liquid contained in a suspension from the dispersed material in the suspension |
| 11/12/1998 | WO1998050310A1 Odor control in industrial lagoons |
| 11/12/1998 | WO1998050309A1 Apparatus for electrochemical treatment of water and/or water solutions |
| 11/12/1998 | WO1998050304A1 Method for treating selenium-containing solution |
| 11/12/1998 | WO1998050130A1 End-of-life indicator for water treatment device |
| 11/12/1998 | WO1998037959A3 Device for the metered dispensing of substances |
| 11/12/1998 | DE4244839C2 Digging sludge and water processing |
| 11/12/1998 | DE19816552A1 Sludge drying assembly consists of two parallel wedge ladder racks |
| 11/12/1998 | DE19742301A1 Assembly to prepare gas-enriched especially carbonated or oxygenated water |
| 11/12/1998 | DE19719497A1 Process and assembly to replace spent ion-exchange material with fresh material |
| 11/12/1998 | DE19719403A1 Disposal of rubbish dump seepage water |
| 11/12/1998 | DE19719395A1 Adsorption from gas or liquid phase using aerogel adsorbents |
| 11/12/1998 | CA2263085A1 Odor control in industrial lagoons |
| 11/11/1998 | EP0877000A2 Feeding/distribution device for a tank of a water treatment plant |
| 11/11/1998 | EP0876999A2 Water treatment facility for recycling and decalcification of water in a car wash without drainage |
| 11/11/1998 | EP0876831A1 Process for electrochemical decomposition of organic pollutants |
| 11/11/1998 | EP0876762A1 Composition having disinfecting action |
| 11/11/1998 | EP0876304A1 Soil and water remediation and enhancement process and apparatus therefor |
| 11/11/1998 | EP0876301A1 Method for treating contaminated water |
| 11/11/1998 | EP0876300A1 Methods and compositions for controlling biofouling using thiourea compounds |
| 11/11/1998 | EP0876299A1 Liquid sterilisation apparatus |
| 11/11/1998 | EP0876298A1 Process for purifying rinsing water used in semiconductor manufacture |
| 11/11/1998 | EP0876297A2 Process and device for recovering purified ionic surfactants from washing solutions, in particular for washing contaminated soil |
| 11/11/1998 | EP0876209A1 Heavy metal removal agent containing a sulphur compound |
| 11/11/1998 | EP0876198A1 Method and device for removing iron from aqueous liquids |
| 11/11/1998 | EP0876196A1 Process for purifying a liquid contaminated by filamentary molecules |
| 11/11/1998 | EP0876195A1 Method of filtering the organic solutions arising in the production of circuit boards |
| 11/11/1998 | EP0876193A1 Method and device for cleaning flue gases from furnaces |
| 11/11/1998 | EP0876180A1 A method of oxidation |
| 11/11/1998 | EP0797474A4 Portable water purifying and drinking device |
| 11/11/1998 | EP0782547B1 Nitrate recovery facility |
| 11/11/1998 | EP0715603B1 Treatment method for waste water sludge comprising at least one metal |
| 11/11/1998 | EP0637914B1 Compositions and methods for controlling the growth of microbes in aqueous media |
| 11/11/1998 | CN2296882Y Deep water aerator |
| 11/11/1998 | CN2296881Y Oil removing equipment for oil separation tank |
| 11/11/1998 | CN2296880Y Sucker type outlet filter screen |
| 11/11/1998 | CN1198408A Rapid purifying method using ozonized water of high concentration |
| 11/11/1998 | CN1198407A Sea water desalination method by alternative freezing process |
| 11/10/1998 | US5835454 Apparatus for making sonic measurements in a fluid filled tank |
| 11/10/1998 | US5834545 Used as flocculant, viscosifier, or textile print paste thickener |
| 11/10/1998 | US5834385 Oil-sorbing article and methods for making and using same |
| 11/10/1998 | US5834121 Microporous matrix of first vinyl polymer having plurality of primary beads comprising metal oxide coated with second vinyl polymer distributed throughout |
| 11/10/1998 | US5834075 Corrosion protection in concrete sanitary sewers |
| 11/10/1998 | US5833864 Method for the reduction and control of the release of gas and odors from sewage and waste water |
| 11/10/1998 | US5833863 Screening slurried concrete to remove coarse aggregate, hydrocyclone separation to remove fine aggregates, clarification of secondary slurry and centrifuging to remove settled out cement solids from remaining water |
| 11/10/1998 | US5833862 Method of removing organic compounds from air and water columns |
| 11/10/1998 | US5833859 Method for treating fluids |
| 11/10/1998 | US5833852 Supplementary filter apparatus for a water purifier |
| 11/10/1998 | US5833850 Water filter |
| 11/10/1998 | US5833846 Pretreatment; decarbonation; reverse osmosis; non-regeneration type ion exchanger; ultraviolet radiation oxidizer; cartridge polisher; membrane separation unit |
| 11/10/1998 | US5833842 Apparatus for disinfecting water in hot water recirculation systems |
| 11/10/1998 | US5833841 Feeding swimming pool water into ion exchanger to render it acidic and hardness-free; adding lime water to provide a lime-carbonic acid equilibrium |
| 11/10/1998 | US5833831 Method and system for generating electrolyzed water |
| 11/10/1998 | US5833812 Water is heated by passing current through two partially submerged probes to generate steam; plastic heating bowl, condensing unit, and tank have simple disassembly for cleaning |
| 11/10/1998 | US5833756 Process and plant for decontaminating solid materials contaminated with organic pollutants |
| 11/10/1998 | US5833742 Phenylamides as marine antifouling agents |
| 11/10/1998 | US5832623 Dirt drying processing equipment |
| 11/05/1998 | WO1998049108A1 Dewatering of sewage sludge |
| 11/05/1998 | WO1998049105A1 Wastewater treatment process for vacuum degasser effluent |
| 11/05/1998 | WO1998049104A1 Method for reducing or eliminating deposits of bacterial origin in close circuit water installations |
| 11/05/1998 | WO1998049103A1 Device for the elimination of calcareous incrustations and deposits in pipelines, water systems and equipment connected thereto |
| 11/05/1998 | WO1998049102A1 Method and device for treating wastewaters from a chemical-mechanical polishing process in chip manufacturing |
| 11/05/1998 | WO1998048955A1 Method for decontaminating contaminated soils |
| 11/05/1998 | WO1998048933A1 Biosorption agents for metal ions and method for the production thereof |
| 11/05/1998 | WO1997049766A3 Mechanically stable self-inverting water-in-oil polymer emulsions |
| 11/05/1998 | DE19818630A1 Water decontamination assembly and operating procedure |
| 11/05/1998 | DE19719034A1 Verfahren zum Reinigen kontaminierter Böden A method for purifying contaminated soils |
| 11/05/1998 | DE19718452A1 Biosorbentien für Metallionen und Verfahren zu ihrer Herstellung Biosorbents for metal ions, and process for their preparation |
| 11/05/1998 | DE19717054A1 Water container with filter cartridge |