| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 04/27/2006 | DE102004051764A1 Hot water treatment system, with heating for disinfection, has layer of lime protection granules at the flow into the reaction zone to prevent the formation of scale and biofilm in the hot water supply and circulation |
| 04/27/2006 | DE102004051695A1 Desalination process for seawater by electrochemical, active carbon, ultra-violet and reverse osmosis sequence |
| 04/27/2006 | DE10102700B4 Verfahren und Vorrichtung zur Reinigung ölhaltiger Abwässer Method and apparatus for cleaning oil-containing effluents |
| 04/26/2006 | CN1762861A Printing and dyeing waste water disposal process |
| 04/26/2006 | CN1762860A Paper making waste water disposal method by coagulant precipitation and coke filtration disposal |
| 04/26/2006 | CN1253388C Method and equipment for treatment of polluted fluid |
| 04/26/2006 | CN1253387C Multistage refuse percolate drastic biochemical and physio-chemical treating technology |
| 04/26/2006 | CN1253386C Polymeric aluminum chloride flocculant preparation method using phthalocyanine green waste water |
| 04/26/2006 | CN1253385C Processing method of cupric ion of phthalocyanine green waste water using 335 type alkalescence anion resin |
| 04/26/2006 | CN1253384C Polymeric aluminum chloride ferric flocculant preparation method using phthalocyanine green waste water |
| 04/26/2006 | CN1253381C Aerobic polishing system for wastewater |
| 04/25/2006 | US7033503 Municipal wastewater treatment apparatus and process with a continuous feed and cyclic aeration |
| 04/25/2006 | US7033495 Self contained dissolved air flotation system |
| 04/20/2006 | US20060081544 Sludge concentration system and process which have functions for automatically charging a coagulant and for automatically controlling the concentration of a sludge |
| 04/20/2006 | US20060081537 Method and system for the treatment of liquid effluents containing pollutants in a suspension |
| 04/20/2006 | US20060081521 System and devices for collecting and treating waste water from engine washing |
| 04/20/2006 | CA2583752A1 Integrated multi-zone wastewater treatment system and method |
| 04/19/2006 | EP1647529A1 Procedure equipment and reagents for purifying wastewaters |
| 04/19/2006 | CN2773064Y Denitrifying biological rotary disk device |
| 04/19/2006 | CN1761737A Method and apparatus for refining biodiesel |
| 04/19/2006 | CN1761624A Two phase anaerobic organic matter treatment and system |
| 04/19/2006 | CN1761621A Method and hybrid reactor for processing residual wastes |
| 04/19/2006 | CN1760147A Water treatment method for removing larvae of midge by using ozone-active carbon |
| 04/19/2006 | CN1251981C Process and apparatus for industrial production of drinking water having slight alkaline and high purity |
| 04/18/2006 | US7030391 Used in water purification having improved effectiveness through the employment of a self-cleaning mechanism to maintain a desired degree of transmittance of ultraviolet radiation through an ultraviolet transparent quartz tube for ultraviolet lamps |
| 04/18/2006 | US7029587 Water purification |
| 04/18/2006 | CA2301192C Apparatus for the treatment of rain water |
| 04/12/2006 | EP1645824A2 Refrigerator with water dispensing means comprising a water filter mounted within the refrigeration compartement |
| 04/12/2006 | EP1513773A4 Radio frequency identification system for a fluid treatment system |
| 04/12/2006 | CN2771193Y Powerless domestic sewage treating device |
| 04/12/2006 | CN1759069A Water purification system |
| 04/12/2006 | CN1250672C Process for preparing calcium acetate snow thawing agent |
| 04/12/2006 | CN1250460C Perphyton filtration pre- and post-treatment system and method |
| 04/12/2006 | CN1250456C Manufacturing method of water filter |
| 04/12/2006 | CA2481853A1 Integrated multi-zone wastewater treatment system and method |
| 04/06/2006 | US20060070947 Method and apparatus for treating water |
| 04/05/2006 | CN2769263Y Housing estate sewage treatment arrangement |
| 04/05/2006 | CN1756581A Removable closure assembly for a water treatment system |
| 04/05/2006 | CN1248976C Integrated biological effulent treatment process |
| 04/04/2006 | US7022232 Periphyton filtration pre- and post-treatment system and method |
| 04/04/2006 | US7022227 Multifunctional filtering device for an aquarium |
| 03/30/2006 | DE10241733B4 Verfahren zur Rückgewinnung von Wertstoffen aus dem nachgeschalteten Spülbad eines Phosphatierprozesses Process for the recovery of recyclable materials from the downstream rinse a phosphating |
| 03/29/2006 | EP1640344A1 Pure water production system |
| 03/29/2006 | EP1640053A1 Waste water filtration system vehicle |
| 03/29/2006 | EP1252109B1 Water purification process and purification plant |
| 03/29/2006 | EP1189673A4 Improved composite filter element |
| 03/29/2006 | CN2767434Y Two-kind sludge denitrification and dephosphorization experiment device |
| 03/29/2006 | CN1752036A Treatment method of soybean lactalbumin waste water |
| 03/29/2006 | CN1247472C Organic waste liquid treatment method and apparatus |
| 03/29/2006 | CN1247468C ELectrodeionization appts. and method |
| 03/28/2006 | US7018543 For treating a nitrogen compound (nitrate nitrogen) and a phosphorus compound (phosphate ions) using electrolysis and a chemical treatment with hypochlorous acid, ozone or active oxygen |
| 03/28/2006 | US7018534 for the control of biomass growth on suspended media within fluidized-bed bioreactors. |
| 03/28/2006 | US7018529 System for producing ultrapure water |
| 03/28/2006 | US7018522 Method and apparatus for removing contaminants from conduits and fluid columns |
| 03/22/2006 | EP1637207A2 Water purifying cartridge |
| 03/22/2006 | CN2765902Y Automatic water treating device for family |
| 03/22/2006 | CN1750997A Water treatment compositions with masking agent |
| 03/22/2006 | CN1749188A Method and apparatus for treating organic liquid waste |
| 03/22/2006 | CN1749187A Combined alternative flow integrated biological reactor and method for treating waste water therewith |
| 03/22/2006 | CN1749186A Pretreating process and device for treating coked waste water by coagulating, adsorption and electrolytic decoloring |
| 03/22/2006 | CN1246234C Treatment of waste water in producing isophthalic acid dimethyl ester-5-sodium sulphonate and its resource utilization method |
| 03/22/2006 | CN1246228C Method and plant for thickening sludge derived from water treatment by flocculation-decantation with ballasted floc |
| 03/21/2006 | US7015119 Fabrication method of semiconductor integrated circuit device |
| 03/21/2006 | US7014770 Adding additive to colloidal solution so that colloidal substances are coagulated; sucking colloidal solution through first filter so that coagulated colloids are accumulated on surface of filter to form gel membrane; filtering |
| 03/21/2006 | US7014768 Separating waste from an anaerobic digester into liquids, solids, and biogas; stripping ammonia from the liquids, recycling carbon dioxide-acidified liquid to the digester, and passing the stripped ammonia through the solid to make biofertilizer |
| 03/21/2006 | US7014767 Water ozonation and bioremediation system and associated methods |
| 03/16/2006 | US20060054565 Method for the removal of contaminant metal ions from waste water |
| 03/16/2006 | US20060054554 Method for oxygenating wastewater |
| 03/15/2006 | EP1292543B1 Method for producing water rich in calcium |
| 03/15/2006 | CN2764770Y Organic substance decomposing and filtering device |
| 03/15/2006 | CN2764769Y Integrated water purifier |
| 03/15/2006 | CN1245233C Manifold branch for changeable liquid filter |
| 03/14/2006 | US7011751 Water treatment system |
| 03/09/2006 | WO2006025563A1 Method and apparatus for treating aqueous medium |
| 03/09/2006 | WO2006024212A1 Process and equipment for fluid-purifying |
| 03/09/2006 | WO2006024093A1 Apparatus for the treatment of water |
| 03/08/2006 | EP1527022B1 Method and facility for treatment of sludge derived from biological water purification facilities |
| 03/08/2006 | CN2763262Y Equipment for treating wastew ater from dys processing by using membrane-tech. |
| 03/08/2006 | CN1745041A Method and apparatus for the treatment of liquid effluents containing pollutants in a suspension |
| 03/08/2006 | CN1745039A Electrocoagulation system |
| 03/08/2006 | CN1743284A Sewage-refuse treatment clean-production system at the center of generating plant |
| 03/08/2006 | CN1743283A Filter-adsorption-submerged floating wet land sewage treating system and apparatus |
| 03/08/2006 | CN1244664C Press cracking method |
| 03/08/2006 | CN1244505C 生物氧化船 Biological oxidation boat |
| 03/07/2006 | US7008543 Use of chlorine dioxide and ozone for control of disinfection by-products in water supplies |
| 03/07/2006 | US7008535 Apparatus for oxygenating wastewater |
| 03/07/2006 | US7008529 Water treating device |
| 03/02/2006 | WO2006022230A1 Method for treating fluorine-containing wastewater and equipment for treating fluorine-containing wastewater |
| 03/02/2006 | WO2006021736A1 Water purification apparatus |
| 03/02/2006 | WO2006021061A2 System of filtering , maintaining and bacteriological and magnetized treatment for drinking water |
| 03/02/2006 | US20060043026 Method and apparatus for fluid purification |
| 03/02/2006 | US20060043019 porous hollow tube on support |
| 03/02/2006 | DE202005019293U1 Apparatus for removing particles and dissolved materials from swimming bath water has prefiltration unit, flocculating agent injection point and ultrafiltration unit, some filtrate being dechlorinated and treated by reverse osmosis |
| 03/02/2006 | DE102004041987A1 Rapidly reducing germ count in water circuits or containers, e.g. for eliminating Legionella from drinking water, using combination of mechanical, reduced pressure and UV irradiation treatments |
| 03/01/2006 | EP1628913A2 A process for recovering phosphorus from phosphorus production sludge |
| 03/01/2006 | EP1628733A1 Water treatment devices and cartridges therefor |
| 03/01/2006 | EP1337309A4 Method and apparatus for processing wet material |
| 03/01/2006 | CN2761600Y Rouse treatment device of washing sewage |
| 03/01/2006 | CN2761599Y Stage filling type electric deionization device |
| 03/01/2006 | CN2761598Y Generating device of multifunction ionic water |