| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 09/22/1999 | EP0821657B1 Uv-reflector forming a part of a uv-device for purification of a liquid or a gas, preferably water |
| 09/22/1999 | CN2339575Y Disinfecting-sterilizing device of drinking device |
| 09/22/1999 | CN2339574Y Precipitation air-float water-purifying equipment |
| 09/22/1999 | CN2339570Y Multifunction ion-exchange water treatment device |
| 09/22/1999 | CN2339569Y Device for activating and purifying fluid |
| 09/22/1999 | CN2339568Y Self-sunction rotational-flow air-float water pruifying machine |
| 09/22/1999 | CN2339567Y Direct pressure-reducing type solar sea-water desalination device |
| 09/22/1999 | CN2339566Y Reactor for super-critical water oxygenation waste-water treatment |
| 09/22/1999 | CN2339565Y Water-treatment device housing |
| 09/22/1999 | CN2339564Y Jet-flow type chlorine-absorbing device |
| 09/22/1999 | CN2339222Y Efficient sanitary disinfecting cleaning device |
| 09/22/1999 | CN1229401A Apparatus for treating waste water |
| 09/22/1999 | CN1229389A Irrigation type oil skimmer and method for skimming oil |
| 09/22/1999 | CN1229091A Polymer containing tracer group and synthetic method thereof |
| 09/22/1999 | CN1229062A Method for sewage treatment and its system |
| 09/22/1999 | CN1229061A Separating, mixing apparatus for gas liquid ion |
| 09/22/1999 | CN1045195C Sewage treating method |
| 09/22/1999 | CN1045194C Deoxidant and its preparating process |
| 09/22/1999 | CN1045173C Aeration sea water type technology for removing sulphur from smoking and aeration device |
| 09/22/1999 | CN1045156C Method for treatment of potato fruit water |
| 09/21/1999 | US5955350 Sequential biological/chemical/biological treatment of organic waste |
| 09/21/1999 | US5954969 Recovery of iron oxides from polluted coal mine drainage |
| 09/21/1999 | US5954968 Apparatus and method for separating heavy isotopes of hydrogen from water |
| 09/21/1999 | US5954965 Process for producing pure water |
| 09/21/1999 | US5954964 Process for enhancing dewatering of treated biosolids in a wastewater treatment system |
| 09/21/1999 | US5954939 Electrolyzing apparatus and electrolyzing method for electrolyzing flowing water containing chlorine ions |
| 09/21/1999 | US5954937 Efficient electrostatic purification of fluid flowing through serpentine channel formed between anode and cathode members |
| 09/21/1999 | US5954935 Electrolytic cell arrangement for the deionization of aqueous solutions |
| 09/21/1999 | US5954868 Method and composition for enhanced bioremediation of oil |
| 09/21/1999 | CA2149266C Apparatus for the disinfection of a flowing liquid medium and a plant for the treatment of clarified sewage |
| 09/21/1999 | CA2095887C Bubbling system |
| 09/16/1999 | WO1999046210A1 Method and composition for enhanced bioremediation of oil |
| 09/16/1999 | WO1999046208A1 Method for treatment of top soil of a field with ozone gas to increase growth of plants |
| 09/16/1999 | WO1999046207A1 Aqueous dispersions |
| 09/16/1999 | WO1999046206A1 Sea water desalination, evaporation and manufacturing of energy device |
| 09/16/1999 | WO1999046205A2 Water recycling system for laundry or dish washing |
| 09/16/1999 | WO1999046201A2 Method and apparatus for preparation and use of ozone water |
| 09/16/1999 | DE19910855A1 Composition comprising structured water with pharmaceutical or cosmetic use |
| 09/16/1999 | DE19908583A1 Continuous determination of the UV transmission of running or flowing media, such as drinking water or purified sewage, for disinfection by UV irradiation |
| 09/16/1999 | DE19818691C1 Control of concentration and yield in reverse osmosis plant |
| 09/16/1999 | DE19811153A1 Process to clean water and abrasive agent used in cutting processes |
| 09/16/1999 | DE19810388A1 Verfahren zur Aufbereitung von verbrauchtem Rückspülwasser Process for the treatment of spent backwash water |
| 09/16/1999 | DE19810283A1 Household water pipe section has inner helical plate surrounded by ring magnets |
| 09/16/1999 | CA2323495A1 Recycling system for laundry wash water |
| 09/15/1999 | EP0941970A1 Treatment of aqueous effluents by injection of carbon dioxide |
| 09/15/1999 | EP0941969A1 Devices processing water using tourmaline composite grains |
| 09/15/1999 | EP0941968A2 Modular control apparatus for a water treatment system |
| 09/15/1999 | EP0941967A2 Process for treatment of used of backwash water |
| 09/15/1999 | EP0941760A1 Charge mosaic membrane, its production process, method of its use, and apparatus provided with the same |
| 09/15/1999 | EP0941755A1 Process and apparatus for industrial printing waste water purification |
| 09/15/1999 | EP0851842B1 Process for disinfecting aqueous solutions |
| 09/15/1999 | EP0833689B1 Process and apparatus for the magnetic treatment of substances |
| 09/15/1999 | EP0820537A4 Electrochemical system and method for the removal of charged species from contaminated liquid and solid wastes |
| 09/15/1999 | EP0799162B1 Reversible flow supercritical reactor and method for operating same |
| 09/15/1999 | CN2338336Y Electromagnetic field water treatment apparatus |
| 09/15/1999 | CN2338335Y Domestic electronic water treatment apparatus |
| 09/15/1999 | CN2338334Y Jetting apparatus for electronic water treatment equipment |
| 09/15/1999 | CN2338333Y Equipment for scale-removing, scale-proof, sterilization and algae-killing for circulating water |
| 09/15/1999 | CN2338332Y Automatic water draining apparatus |
| 09/15/1999 | CN2338331Y General water purification equipment for urban and rural region |
| 09/15/1999 | CN2338330Y Multi-function flotation and purification equipment |
| 09/15/1999 | CN2338329Y Water storage type micro-wave water treatment and water purification equipment |
| 09/15/1999 | CN1228794A Polyamide compositions for removal of polyphenols from liquids |
| 09/15/1999 | CN1228750A Desalination apparatus and method of operating the same |
| 09/15/1999 | CN1228714A Water treatment device and method |
| 09/15/1999 | CN1228390A Water purifying agent by oxygen polymerization one-step method |
| 09/15/1999 | CN1228359A Device for clarifying charged liquid by flotation |
| 09/15/1999 | CN1228247A Electromagnetic wave generating composite |
| 09/15/1999 | CN1045076C Catalyst for wet oxidation and purification of industrial sewage containing high-concentration organics and ammonia, and its preparing method |
| 09/15/1999 | CN1045063C Distiller apparatus |
| 09/14/1999 | US5952663 For irradiating fluids |
| 09/14/1999 | US5952542 Using metal oxide, metal being selected from group consisting of ruthenium, osmium, irridium and rhodium to oxidize waste organic material; continuously regenrating metal oxide from its lower valency in electrochemical cell |
| 09/14/1999 | US5951921 Mixing, dissolving, contact efficiency of ozone and watermixture |
| 09/14/1999 | US5951875 Adsorptive bubble separation methods and systems for dewatering suspensions of microalgae and extracting components therefrom |
| 09/14/1999 | US5951869 A water treatment for reducing the concentration of inorganic nitrate and/or nitrite by contacting with a fine metal particles |
| 09/14/1999 | US5951866 Cold climate wetland waste water treatment system |
| 09/14/1999 | US5951865 Nestable water filtering apparatus |
| 09/14/1999 | US5951863 Water purification using reverse osmosis device for formulation of medical solution |
| 09/14/1999 | US5951859 Washing and disinfecting method and apparatus for artificial dialyzer using acid water electrolytically made |
| 09/14/1999 | US5951856 Using induction coil |
| 09/14/1999 | US5951845 Demetallization by metal scavenger, electrochemical machining by passing a current through the cell, regenerating the organic hydroxide, recovering from cell; waste recycling |
| 09/14/1999 | US5951842 Recovering silver in photographic solutions |
| 09/14/1999 | US5951839 Method of producing a water-based fluid having magnetic resonance of a selected material |
| 09/14/1999 | US5951825 Convertible distillation apparatus |
| 09/14/1999 | CA2148980C Method for controlling zebra and related mussels using ultraviolet radiation |
| 09/14/1999 | CA2087607C Bioreactor |
| 09/14/1999 | CA2059830C Tank for separating water and hydrocarbon fuels from contaminated water |
| 09/14/1999 | CA2005029C Method for reducing the buildup of slime and film in plant |
| 09/11/1999 | CA2253177A1 Cleansing system |
| 09/10/1999 | WO1999045192A1 Method for treating process water |
| 09/10/1999 | WO1999044949A1 Method and apparatus for water sanitisation |
| 09/10/1999 | WO1999044948A1 Water supply system capable of increasing dissolved oxygen |
| 09/10/1999 | WO1999044947A1 Reversible flow circuit for batch liquid purifier |
| 09/10/1999 | WO1999044946A1 Method to minimize corrosion in aqueous systems |
| 09/10/1999 | WO1999044945A1 Method and device for eliminating or reducing the ammonium content in waste waters |
| 09/10/1999 | WO1999044944A1 Oil recovery system |
| 09/10/1999 | WO1999044732A1 A composition for mixing oil and water to form a solution |
| 09/10/1999 | WO1999044713A2 Escutcheon-mounted filter with above counter access for cartridge renewal |
| 09/10/1999 | WO1999044712A1 Antimicrobial filter cartridge |
| 09/10/1999 | WO1999044708A1 Movable water distiller |