| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 02/22/1994 | US5288177 Covalently bonding with a silicon chemical |
| 02/22/1994 | CA2104535A1 Method of producing acids and alkalis |
| 02/22/1994 | CA1327178C Process for converting sewage-sludge filter cakes into oil, gas and coke by pyrolysis and plant for carrying out this process |
| 02/20/1994 | CA2077877A1 Controlled biocide feeder for cooling water systems |
| 02/18/1994 | CA2104221A1 Biological substrate for the adsorption of contaminants in an aqueous environment |
| 02/17/1994 | WO1994003573A1 Use of aluminosilicates of the zeolite p type as low temperature calcium binders |
| 02/17/1994 | WO1994003402A1 Process and device for the biological treatment of organically polluted waste water and organic waste |
| 02/17/1994 | WO1994003401A1 Waste water treatment |
| 02/17/1994 | WO1994003400A1 Anti-calcareous magnetic water conditioner, with improvements which bring about alternative solutions |
| 02/17/1994 | WO1994003399A1 Improved method and apparatus for removing organic contaminants |
| 02/17/1994 | WO1994003397A1 Improvement to membrane type deaerator |
| 02/17/1994 | WO1994003252A1 Process and device for clarifying liquids |
| 02/17/1994 | WO1994003250A1 Process and apparatus for removing bottoms from a mixture |
| 02/17/1994 | WO1994003249A1 Material for extracting hydrophobic components dissolved in water |
| 02/17/1994 | WO1994000392A1 Scavenging of hydrogen sulphide |
| 02/17/1994 | DE4303842A1 Removal of organic substances from surfaces or water - using coal-based adsorbent |
| 02/17/1994 | DE4231628C1 Nitrogen elimination purificn. process by ion exchange adsorption of ammonium and ions, and an appts. - by intensive airing and washing with water in a separate nitrification reactor unit |
| 02/17/1994 | CA2141220A1 Use of aluminosilicates of the zeolite p type as low temperature calcium binders |
| 02/16/1994 | EP0582879A1 Formed organosiloxane polycondensates, process for their preparation and use |
| 02/16/1994 | EP0582695A1 Fine purification of water and treatment of condensates in an ion-exchange system |
| 02/16/1994 | EP0582600A1 System for cleaning contaminated water |
| 02/16/1994 | CN2156643Y Heating thermo-insulator for mineral fountain pot |
| 02/16/1994 | CN2156437Y Magnetization water heater |
| 02/16/1994 | CN2156183Y Clean water overflow precipitating tank |
| 02/16/1994 | CN2156182Y External connecting water magnetization device |
| 02/16/1994 | CN2156181Y Water dynamic magnetization |
| 02/16/1994 | CN2156180Y Rotary drop dirt remover |
| 02/16/1994 | CN2156179Y Electric oxygen remover |
| 02/16/1994 | CN2156178Y Multi-function drinking water purifier |
| 02/16/1994 | CN2156177Y Improved water purifier |
| 02/16/1994 | CN2156176Y Water purifying machine |
| 02/16/1994 | CN2156175Y 磁振矿泉净水器 Magnon mineral water purifier |
| 02/16/1994 | CN2156174Y Domestic water purifier with volume display |
| 02/16/1994 | CN2155932Y Health care water purifier |
| 02/16/1994 | CN2155782Y Siphon thermo bottle |
| 02/16/1994 | CN2155727Y Magnetization spray toothbrush |
| 02/16/1994 | CN1082121A Method for treating pickle liquor |
| 02/16/1994 | CN1082007A Treatment of sewage sludge |
| 02/16/1994 | CN1082006A Polymeric aluminum silicate-sulphate and process for producing same |
| 02/16/1994 | CN1082005A Equipment for producing magnetized water |
| 02/16/1994 | CN1023793C Polysilicate flocculant and preparing process thereof |
| 02/16/1994 | CN1023792C Internal high speed cleaning apparatus |
| 02/16/1994 | CN1023791C Process of removing fluorine from water of high fluorine content |
| 02/15/1994 | US5286806 Methods of making and using high molecular weight acrylamide polymers |
| 02/15/1994 | US5286464 Complexing contaminated liquids with amorphous silica gel having surface functionalized by substituted silanetriols, then recovery of metals and regeneration of resin |
| 02/15/1994 | US5286391 Red mud flocculation |
| 02/15/1994 | US5286390 Method for treating deink wastes using melamine aldehyde-type polymers |
| 02/15/1994 | US5286389 Removal of hydrogen sulfide from sour water |
| 02/15/1994 | US5286386 Solvent extraction process for treatment of oily substrates |
| 02/15/1994 | US5286377 Evaporative cooler water treatment device |
| 02/15/1994 | US5286351 Water distilling method |
| 02/15/1994 | US5286141 Plurality of mutually spaced wells, injection of hydrogen peroxide; monitoring of pH changes |
| 02/15/1994 | US5285903 Method for recovering particulate and scavenging formaldehyde in a wood panel fabrication process |
| 02/10/1994 | DE4324124A1 Dechlorinating and neutralising water, esp. water used in control of chlorine gas escapes - comprises passing water in closed container through optional neutral (e.g. gravel) layer and then through layers of dechlorinating and neutralising substances |
| 02/10/1994 | DE4225957A1 Verfahren zum Reinigen von Flüssigkeiten und Vorrichtung zum Durchführen dieses Verfahrens A method for cleaning liquids and device for carrying out this method |
| 02/10/1994 | DE4225848A1 Rinsing plant for cleaning tools handling liq. lacquer - has collector line from used rinsing solution outlet to its collecting container, which is then fed to regeneration stage |
| 02/10/1994 | DE4222550C1 Device for heating and killing of Legionella bacteria in water supplies - by preheating water using brine circuit, and then heating directly by combustion exhaust gas in multistage heat exchanger |
| 02/10/1994 | DE4217491C1 Compact sewage treatment plant - comprising container with screen, pumps, aerators and two flotation devices, and second container aerobic reactor surrounded by anaerobic reactor |
| 02/09/1994 | EP0582172A1 Structure for selectively absorbing oily contaminants and process |
| 02/09/1994 | EP0582053A1 Engine and radiator coolant treatment and handling, enabling coolant reuse |
| 02/09/1994 | CN2155473Y Multi-functional stop water self-closing valve |
| 02/09/1994 | CN2155181Y 磁化过滤锅 Magnetization filter pot |
| 02/09/1994 | CN1081708A Use of aluminosilicates of the zeolite P type as low temperature calcium binders |
| 02/09/1994 | CN1081659A Far-infrared health-care cup |
| 02/09/1994 | CN1081652A Structure for selectively absorbing oily contaminants and process |
| 02/09/1994 | CN1081602A Magnetic straw |
| 02/09/1994 | CN1023719C Composite electrode making method for sodium hypochlorite generator |
| 02/09/1994 | CN1023697C Compound high-efficient coagulant and its making method |
| 02/09/1994 | CN1023696C Low-dosage radioactive cement component for sewage disposal |
| 02/09/1994 | CN1023695C Swirl-aeration purifying water equipment |
| 02/08/1994 | US5284909 Amphoteric polyelectrolyte, method for production thereof, and organic sludge dehydrater |
| 02/08/1994 | US5284844 Biocides for protecting industrial materials and water systems |
| 02/08/1994 | US5284651 Oxidation of polyvalent phenols in aqueous alkaline media at controlled temperature yields nontoxic, nonmutagenic, nonteratogenic humic acid derivatives |
| 02/08/1994 | US5284642 Water treatment |
| 02/08/1994 | US5284635 Process for the elimination of hydrogen sulfide by using water-in-oil emulsions |
| 02/08/1994 | US5284627 Receptacle with impeller for agitating and shearing aqueous polymeric mixtures to efficiently dissolve and age to maximum viscosity, for waste water flocculation |
| 02/08/1994 | US5284626 Mixing polymer and water uniformly at selected concentration at reduced cost |
| 02/08/1994 | US5284590 Adding low molecular weight acrylic acid-2-methylpropyl sulfonic acid type polymers |
| 02/08/1994 | US5284589 Process for the treatment of effluent |
| 02/08/1994 | CA1326919C Control of biofouling with certain alkylthioalkylamines |
| 02/08/1994 | CA1326918C Process for oxidizing a cyanide compound |
| 02/08/1994 | CA1326840C Method and apparatus for electrolytic treatment of liquids, especially waste water |
| 02/03/1994 | WO1994002680A1 Hydrocyclone photo-reactor |
| 02/03/1994 | WO1994002424A1 Process for purifying sludge containing mainly water |
| 02/03/1994 | WO1994002423A1 Method and apparatus for controlling microorganisms |
| 02/03/1994 | WO1994002422A1 A method and apparatus for modifying water or a water-containing liquid substance |
| 02/03/1994 | WO1994002420A1 Novel water treatment compositions |
| 02/03/1994 | WO1994002419A1 A water distillation system |
| 02/03/1994 | WO1994002418A1 A method of and an apparatus for purifying aqueous suspensions containing organic material and cations |
| 02/03/1994 | WO1994002410A1 BOILER OPERATION WITH DECREASED NOx AND WASTE WATER DISCHARGE |
| 02/03/1994 | CA2140885A1 Boiler operation with decreased no and waste water discharge |
| 02/03/1994 | CA2140631A1 Process for purifying sludge containing mainly water |
| 02/02/1994 | EP0581550A1 Solid compositions capable of releasing chlorine dioxide |
| 02/02/1994 | EP0581164A1 Metal scavengers and processes for the production thereof |
| 02/02/1994 | EP0581157A1 Water purification method and apparatus |
| 02/02/1994 | EP0581093A1 Process and agent for the oxidative destruction of azides |
| 02/02/1994 | EP0581002A2 Use of blends of mannich acrylamide polymers and quaternary polyamines for flocculating enzyme broth streams |
| 02/02/1994 | EP0580636A1 Catalysed hypochlorite decomposition process. |
| 02/02/1994 | EP0580595A1 Aqueous phase removal of nitrogen from nitrogen compounds. |
| 02/02/1994 | EP0580589A1 Cellulose absorbent product and method of manufacture |