| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 04/12/1994 | US5302290 Method for removing toxic anions from water |
| 04/12/1994 | US5302288 Treatment of highly colored wastewaters |
| 04/12/1994 | US5302273 Induced ionic reaction device with radial flow |
| 04/12/1994 | CA1328393C Biocidal compositions and use thereof containing a synergistic mixture of tetraalkyl phosphonium halide and methylene bis(thiocyanate) |
| 04/12/1994 | CA1328392C Biocidal compositions and use thereof containing a synergistic mixture of tetraalkyl phosphonium halide and n-alkyl dimethylbenzyl ammonium chloride |
| 04/07/1994 | DE4323371A1 Swimming pool water filter system - has vessel contg. suspension of water and active carbon powder which is introduced into recirculating water as required |
| 04/07/1994 | DE4305104C1 Coagulant for paint and=or wax in wet separators - contains an aq soln or suspension of shellac, balsamic resin or other natural resin as an amine, alkanolamine or alkali salt |
| 04/07/1994 | DE4233265A1 Neutralising the pH value of acid water - has control to regulate the neutralising agent feed according to comparison of nominal and actual pH values |
| 04/07/1994 | DE4228569C1 Removing substd. aminophenol cpds. from aq. solns. - by extn. at acid pH with higher tert. aliphatic amine or salt, as non-toxic, biodegradable extractant |
| 04/06/1994 | EP0591000A1 Finely divided anthraquinone formulations as inhibitors of sulfide production from sulfate-reducing bacteria |
| 04/06/1994 | EP0590896A1 Method for treating deink wastes melamine aldehyde-type polymers |
| 04/06/1994 | EP0590816A1 Immobilisation of wate material |
| 04/06/1994 | EP0590769A1 Method for removal of water soluble organics from oil process water |
| 04/06/1994 | EP0590762A1 Automatic swimming pool chlorinator |
| 04/06/1994 | EP0590746A1 Proteases to inhibit and remove biofilm |
| 04/06/1994 | EP0590711A1 A method for the immobilisation of waste material contaminated with organic chemical compounds |
| 04/06/1994 | EP0590556A1 Process for reducing the phosphate content in the effluents from the preparation of metal salts of ascorbic acid-2-monophosphate |
| 04/06/1994 | EP0590184A1 Water sanitisation |
| 04/06/1994 | EP0590075A1 Process for recovering organics from liquid streams |
| 04/06/1994 | EP0589953A1 Treatment of waste water |
| 04/06/1994 | CN2160657Y Continuously operating purifier for treating water |
| 04/06/1994 | CN2160656Y Electromagnetic solenoid type water magnetizer |
| 04/06/1994 | CN2160655Y Ionic water magnetic field separator |
| 04/06/1994 | CN2160654Y Automatic reverse osmosis water purifier |
| 04/06/1994 | CN2160653Y Negative pressure regulating type metrical device for medicinal liquid |
| 04/06/1994 | CN2160652Y Magnetizing filter for water in water tank |
| 04/06/1994 | CN2160651Y Ultra-filtering water purifier |
| 04/06/1994 | CN2160297Y Multifunctional magnetic cup with movable strong magnetic field |
| 04/06/1994 | CN2160296Y Magnetic mineral purifying cup |
| 04/06/1994 | CN2160295Y Liner for magnetic cup |
| 04/06/1994 | CN2160294Y Magnetic insulation stainless steel cup |
| 04/06/1994 | CN2160293Y Multifunctional mineral pot |
| 04/06/1994 | CN1084918A Paper making black liquor processing method and equipment |
| 04/06/1994 | CN1084874A Oil based composition clean up method and composition for use therein |
| 04/06/1994 | CN1084830A Processing machine for waste water containing chromium |
| 04/06/1994 | CN1084829A Processing machine for waste water containing cyanogen |
| 04/06/1994 | CN1084828A Purifying process for waste liquid containing sodium rhodanate |
| 04/06/1994 | CN1084827A Mineralization magnetic water device |
| 04/06/1994 | CN1084824A Process for the purification of an aqueous solution of alkali metal chloride to remove iodine |
| 04/06/1994 | CN1024127C Method and apparatus for seawater clearing |
| 04/06/1994 | CN1024126C Method for boron reduction in high-concentrated brine by resin |
| 04/05/1994 | US5300677 Method of preparing insoluble hydrolysable tannin and method of treating waste liquid with the tannin |
| 04/05/1994 | US5300232 Neutralization of toxic contamination by injecting treating solution in a tank |
| 04/05/1994 | US5300230 Comprehensive water treatment system |
| 04/05/1994 | US5300229 Process for removing colored components from solvent for polyacrylonitrile |
| 04/05/1994 | US5300227 Bioremediation of hydrocarbon contaminated soils and water |
| 04/05/1994 | US5300224 Fluid treatment device |
| 04/05/1994 | US5300222 Water clarification method and apparatus |
| 04/05/1994 | CA1328319C Process for the production of filler-containing, polymer-bound compositions the compositions obtained by this process and their use |
| 04/05/1994 | CA1328317C Control of oilfield biofouling |
| 03/31/1994 | WO1994007248A1 Particle accelerator |
| 03/31/1994 | WO1994006873A1 Ink composition and method of making, using and recovering such composition |
| 03/31/1994 | WO1994006718A1 Method of cleaning waste water and recovery of contaminants therefrom |
| 03/31/1994 | WO1994006717A1 Method for the purification of metal-containing aqueous media and method of preparing an adsorbent |
| 03/31/1994 | WO1994006575A1 Compositions and methods for waste treatment |
| 03/31/1994 | WO1994006573A1 Oil based composition clean up method and composition for use therein |
| 03/31/1994 | WO1994006548A1 Modules for electrodeionization apparatus |
| 03/31/1994 | WO1994006547A1 Water purification and dispensing system |
| 03/31/1994 | WO1994006296A1 Iodine/resin disinfectant and a procedure for the preparation thereof |
| 03/31/1994 | DE4233566A1 Cleaning or regeneration of liquids, esp. used lubricating oil, using UV-radiation, - includes radiation source located in central glass tube around which liquid flow tubes are arranged in one or more concentric circles |
| 03/31/1994 | DE4232740A1 Sepg. acid dye from waste water by addn. of higher amine - and opt. of organic solvent, phase sepn., and pptn. of dye from organic phase with solid calcium oxide |
| 03/31/1994 | DE4232361A1 Sensitive liq. transport device - provides suction lift action e.g. in biological clarification plant |
| 03/31/1994 | DE4232246A1 Verfahren zur Zerstörung einer organischen Substanz Method for the destruction of organic matter |
| 03/31/1994 | CA2145310A1 Compositions and methods for waste treatment |
| 03/31/1994 | CA2145306A1 Particle accelerator |
| 03/31/1994 | CA2144778A1 Method of cleaning waste water and recovery of contaminants therefrom |
| 03/31/1994 | CA2144777A1 Oil based composition clean up method and composition for use therein |
| 03/31/1994 | CA2144776A1 Ink composition and method of making, using and recovering such composition |
| 03/31/1994 | CA2144519A1 Water purification and dispensing system |
| 03/30/1994 | EP0589832A1 Process for deoxidising water |
| 03/30/1994 | EP0589707A1 Biocidal system for re-circulating cooling water |
| 03/30/1994 | EP0589705A1 Apparatus and method for supplying dissolved carbon dioxide |
| 03/30/1994 | EP0589032A1 Process and device for recycling polluted process water. |
| 03/30/1994 | EP0588820A1 Liquid treatment. |
| 03/30/1994 | CN2160050Y Long magnetic path flexible pipe liquid magnetizer |
| 03/30/1994 | CN2159976Y Multifunction glass fibre reinforced plastic water tank |
| 03/30/1994 | CN2159963Y Device for producing magnetized water |
| 03/30/1994 | CN2159962Y High gradient magntic device |
| 03/30/1994 | CN2159961Y Ion desalination concentration reaction force transmission device by dynamic magnetic method |
| 03/30/1994 | CN2159960Y Ultraviolet drinking water sterilizer |
| 03/30/1994 | CN2159959Y Full automatic distilling drinking water device with cold and hot water supply |
| 03/30/1994 | CN2159958Y Purifier for drinking water |
| 03/30/1994 | CN2159957Y Health beauty basin |
| 03/30/1994 | CN2159720Y Magnetic suction tube |
| 03/30/1994 | CN1084497A Apparatus and method for purifying high density organic sewage |
| 03/30/1994 | CN1084496A Catalyst for wet oxidation and purification of industrial sewage containing high-enriched organics and ammonia |
| 03/30/1994 | CN1084495A Process for recovery and use of overflow buck in concentration tank |
| 03/30/1994 | CN1084494A High-efficient pulse settling pond |
| 03/30/1994 | CN1084423A Method and apparatus for treatment of circulating cooling water in air-conditioning system |
| 03/29/1994 | US5298570 Main chain of oligomer crosslinked with alkyhyroxyester,alkyl di/tri esters, acid, metal/ammmonium or amine salt of acid |
| 03/29/1994 | US5298248 Introducing vitamin into water and vitamin impermeable receptacle, closing aperture with permeable membrane, immersing receptacle in well for diffusion of vitamin |
| 03/29/1994 | US5298241 Cortex of Japanese cedar, cypress in feathery or milled form |
| 03/29/1994 | US5298174 Corrosion resistance |
| 03/29/1994 | US5298173 Using block of gypsum and alkaline material |
| 03/29/1994 | US5298170 Effluent neutralization process and chamber |
| 03/29/1994 | US5298169 Reaction of sulfuric acid with calcium material to form gypsum then mixing with a calcium substance, filtration and clarification |
| 03/29/1994 | US5298168 Pollution control |
| 03/29/1994 | CA2106609A1 Proteases to inhibit and remove biofilm |
| 03/29/1994 | CA2106417A1 Method for the immobilisation of waste material contaminated with organic chemical compounds |
| 03/24/1994 | DE4231880A1 Vehicle washing station waste water cleaning assembly |