| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 09/03/1998 | WO1998037959A2 Device for the metered dispensing of substances |
| 09/03/1998 | WO1998037951A1 Recovery and reuse of anionic surfactants from aqueous solutions |
| 09/03/1998 | WO1998037950A1 Portable reverse osmosis unit for producing drinking water |
| 09/03/1998 | WO1998037943A1 Flow-through filter and method for making a flow-through filter |
| 09/03/1998 | DE19708149A1 Electrodeless discharge tube containing mercury and noble gas mixture |
| 09/03/1998 | DE19708148A1 Electrodeless ultraviolet gas discharge lamp excited by high frequency oscillator |
| 09/03/1998 | DE19707792A1 Separation of dissolved and/or emulsified and volatile contaminants from aqueous media |
| 09/03/1998 | CA2282281A1 Flow-through filter and method for making a flow-through filter |
| 09/02/1998 | EP0862022A2 Water treatment apparatus comprising a filter |
| 09/02/1998 | EP0861887A2 Microbial processes using electrolyzed water |
| 09/02/1998 | EP0861810A2 Process for the treatment of liquid residues from photographic processes |
| 09/02/1998 | EP0861809A1 Filter jug and a lid therefor |
| 09/02/1998 | EP0861807A2 Process for the treatment of liquid residues from photographic processes |
| 09/02/1998 | EP0861214A1 Dewatering of aqueous suspensions |
| 09/02/1998 | EP0861212A1 High performance polymer flocculating agents |
| 09/02/1998 | EP0861211A1 Process and device for the preparation of phosphoric acids |
| 09/02/1998 | EP0861210A1 Methods and compositions for controlling biofouling using sulfonamides |
| 09/02/1998 | EP0861114A1 Non-fouling, flow-through capacitor, system and method of separation |
| 09/02/1998 | EP0844907A4 Producing high purity water using reverse osmosis |
| 09/02/1998 | EP0775016B1 Dissolution of calcium carbonate solids with lactic acid |
| 09/02/1998 | EP0715607B1 Device for purifying waste water or ground water |
| 09/02/1998 | EP0647160B1 Ion exchange resin |
| 09/02/1998 | CN2289787Y Water storage household purifier |
| 09/02/1998 | CN2289786Y Large bore electric field water processing unit |
| 09/02/1998 | CN2289785Y Magnetic treater without scaling |
| 09/02/1998 | CN2289784Y Semi-automatic dirt eliminating purifier |
| 09/02/1998 | CN2289783Y Nagative pressure recoil type resin requet organ |
| 09/02/1998 | CN2289782Y Rubber railings type oil removing device |
| 09/02/1998 | CN2289601Y Ion-exchanger filter unit |
| 09/02/1998 | CN1192260A Ocean thermal energy conversion (Otec) system |
| 09/02/1998 | CN1191897A Novel microorganism resistive to hydrogen peroxide |
| 09/02/1998 | CN1191847A Magnesium calcium-base coagulant and its production process |
| 09/02/1998 | CN1191846A Sterilizer for water purifier |
| 09/02/1998 | CN1191768A Hollow fiber separation membrane module of immersing type and method for manufacturing the same |
| 09/02/1998 | CN1191766A 净水器 Water Purifier |
| 09/02/1998 | CN1191765A 净水器 Water Purifier |
| 09/01/1998 | US5801133 Dicarboxylic acid, tricarboxylic acid, hydroxyethylidene-bis-phosphonic acid, fragrance, surfactant, water |
| 09/01/1998 | US5800732 All-in-one treatment agent for cooling water |
| 09/01/1998 | US5800720 Spinning filter separation system for oil spill clean-up operation |
| 09/01/1998 | US5800719 Method for dewatering drinking sludge using a water soluble block copolymer |
| 09/01/1998 | US5800718 Method for treating dry film stripping and developing solution |
| 09/01/1998 | US5800717 Water and wastewater treatment system with internal recirculation |
| 09/01/1998 | US5800716 Processes for the treatment of acidic liquors and for the production of commercial products thereby |
| 09/01/1998 | US5800714 Deactivating a water soluble chain transfer agent |
| 09/01/1998 | US5800708 And dielectric material |
| 09/01/1998 | US5800707 Water filter |
| 09/01/1998 | US5799440 Floating island with water-purifying effect, plant-cultivation bag and method for purifying water |
| 08/27/1998 | WO1998037028A1 Apparatus and method for treating waste water from a residential home |
| 08/27/1998 | WO1998037025A1 Process for separating heavy metals from industrial residues by using a ultrasound floatation and eucalyptus as sequestering agent |
| 08/27/1998 | WO1998037024A2 Method for removing chlorate ions from solutions |
| 08/27/1998 | WO1998036821A1 Method and apparatus for continuous flow isoelectric focusing for purifying biological substances |
| 08/27/1998 | DE19747673A1 Verfahren zur Entfernung von Chlorationen aus Lösungen A process for the removal of chlorate from solutions |
| 08/27/1998 | DE19734759C1 Waste water treatment and assembly |
| 08/27/1998 | DE19707692A1 Rapid, complete decomposition of dicyandiamide in dilute aqueous solution |
| 08/27/1998 | DE19706580A1 Small-scale continual process and assembly to soften and sterilise water |
| 08/27/1998 | CA2281867A1 Method and apparatus for continuous flow isoelectric focusing for purifying biological substances |
| 08/26/1998 | EP0860935A1 Device for combining electric and magnetic fields |
| 08/26/1998 | EP0859748A1 Selective separation at supercritical water conditions |
| 08/26/1998 | EP0859747A1 Process for the aerobic biological break-down of substances having low water-solubility, and a micro-organism of the strain ihi-91 |
| 08/26/1998 | EP0859746A1 Advanced oxidation of water using catalytic ozonation |
| 08/26/1998 | EP0859741A1 Synthetic mineral microparticles and retention aid and water treatment systems and methods using such particles |
| 08/26/1998 | EP0859650A2 Process for decomposing stable organic pollutants |
| 08/26/1998 | EP0740582B1 Oil-absorbing article |
| 08/26/1998 | EP0721428B1 Process for making paper and cardboard |
| 08/26/1998 | EP0637570B1 Treatment of solid and liquid effluents from tan-yards for removing and recovering the chromium contained in the effluents |
| 08/26/1998 | CN2288971Y Ceramic ozone generating chip |
| 08/26/1998 | CN2288970Y Multipole group fluid magnetizer |
| 08/26/1998 | CN2288969Y Movable water magnetizer for concrete |
| 08/26/1998 | CN2288968Y Simple magnetizing high efficiency water purifier |
| 08/26/1998 | CN2288967Y Water treatment device |
| 08/26/1998 | CN2288766Y Flouling-removing device |
| 08/26/1998 | CN2288757Y 净水器 Water Purifier |
| 08/26/1998 | CN1191540A Process for preparation of N-phosphonomethylglycine |
| 08/26/1998 | CN1191495A Liquid medium extraction purification method |
| 08/26/1998 | CN1191206A Method and system for physical purifying of industrial sewage |
| 08/26/1998 | CN1039581C Water treatment apparatus |
| 08/25/1998 | US5798047 Process and apparatus for ultraviolet decomposition of waste water containing organic substances |
| 08/25/1998 | US5798045 Softening water by ion exchange |
| 08/25/1998 | US5798028 Production system of electrolyzed water |
| 08/25/1998 | US5797700 Polyoxyethylene glycol and polyglycerol twin tail surfactant formulations for dispersion of crude oil |
| 08/25/1998 | US5797216 Apparatus and methods for reducing the redox potential of substances |
| 08/20/1998 | WO1998035914A1 Process for cleaning fluids with particulate solids |
| 08/20/1998 | WO1998035913A1 Apparatus for preparing hexagonal water |
| 08/20/1998 | WO1998035912A1 The separation and reuse of nitrates in water |
| 08/20/1998 | WO1998035911A1 Method and apparatus for desalinating sea water, natural salt and fresh water |
| 08/20/1998 | WO1998035768A1 Sequential biological/chemical/biological treatment of organic waste |
| 08/20/1998 | WO1998035752A1 Reagent cartridge |
| 08/20/1998 | WO1998035748A1 Process for recovering organic hydroxides from waste solutions |
| 08/20/1998 | WO1998024531A3 Water purifier with adjustable volume in dwell passage |
| 08/20/1998 | DE19737926C1 Treatment of waste water |
| 08/20/1998 | DE19705965A1 Scale removal from pipe systems carrying water |
| 08/20/1998 | DE19702062C1 Membrane filtration process removes pollutants from water seeping from land fill disposal site |
| 08/19/1998 | EP0858971A2 Water treatment by ozonisation under pressure |
| 08/19/1998 | EP0858970A2 Treatment of water containing impurities of silicon compounds |
| 08/19/1998 | EP0858832A1 Process for removal of substances from a medium by desorption |
| 08/19/1998 | EP0858432A1 Ultraviolet sterilizing system for wastewater |
| 08/19/1998 | EP0858361A1 Component separation system including condensing mechanism |
| 08/19/1998 | EP0756583B1 Filter jug |
| 08/19/1998 | EP0728703B1 Process for producing water having clarifying activity and apparatus therefor |
| 08/19/1998 | EP0660668B1 Iodine/resin disinfectant and a procedure for the preparation thereof |