| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 01/30/2002 | CN2474529Y Wooden fish stone mineral spring pipeline water cleaning apparatus |
| 01/30/2002 | CN2474276Y Bias oscillating type oil removing machine |
| 01/30/2002 | CN1333191A Process for treating sewage produced from water washing molten alkaline or sintered material in production of zirconium series products |
| 01/30/2002 | CN1333190A Sewage treatment method and equipment thereof |
| 01/30/2002 | CN1078568C Process for biological purification of waste water |
| 01/29/2002 | US6342159 Shipboard biomechanical oil water separator |
| 01/29/2002 | US6342155 Apparatus for making fluoridated and drinking water |
| 01/24/2002 | WO2002006168A1 Method and device for purifying and treating waste water in order to obtain drinking water |
| 01/24/2002 | US20020008065 Separation wastes; water treatment |
| 01/24/2002 | US20020008012 Concurrent heating, pressurization; applying electricity |
| 01/23/2002 | EP1173387A1 Method for disinfecting and purifying liquids and gases |
| 01/23/2002 | CN1332701A Process for treatment of waste water containing heavy metals |
| 01/23/2002 | CN1332125A Drinking water treating membrane system and drinking water preparing process |
| 01/23/2002 | CN1332124A High-turbidity water treater with integrated flocculation, air floating and membrane separation functions |
| 01/23/2002 | CN1332123A Fully automatic water-mineralizing pool |
| 01/22/2002 | US6340736 Sodium chloride brine streams, polycarbonates |
| 01/17/2002 | WO2002004367A1 Method and installation for treating industrial, agricultural and urban or agricultural waste, in particular pig slurry |
| 01/17/2002 | WO2002004354A1 Method and device for treating waste water from launderettes |
| 01/17/2002 | WO2002004343A1 Water recovery and dispensing systems and methods for using the same |
| 01/17/2002 | WO2001055033B1 Water and wastewater treatment system and process for contaminant removal |
| 01/17/2002 | US20020006769 Method of fabricating a semiconductor device |
| 01/17/2002 | US20020005385 Water treatment systems and methods |
| 01/16/2002 | EP1171388A1 Method for electrochemical treatment of effluents, especially effluents from leather tanneries, comprising chromium salts |
| 01/16/2002 | CN1331658A Method for reducing metal ion concentration in brain solution |
| 01/16/2002 | CN1331055A Process for recovering waste rare-earth water and fully cyclic treatment |
| 01/16/2002 | CN1331054A Intermittent automatic process and equipment for treating waste water |
| 01/16/2002 | CN1331053A Process for reclaiming ammonia-contained sewage |
| 01/10/2002 | WO2002002466A1 Method and device for treating pumpable media contaminated with harmful substances |
| 01/10/2002 | WO2002002379A1 Washing and recycling unit and method for on-site washing of heavy machinery |
| 01/10/2002 | US20020002985 Such as forestry tractors, includes extender under machinery to collect dirty water and suction hose, filters for recycling it; also hoist for operator with safety rails; conservation, pollution control of contaminated water |
| 01/10/2002 | DE10030984A1 Purification of waste water to produce drinking water comprises aerobic microbiological treatment, removing material which has not been broken down, followed by biological post-treatment and filtering |
| 01/09/2002 | EP1169607A1 Ice-maker treatment system |
| 01/09/2002 | CN2470353Y Housework water-treatment machine |
| 01/09/2002 | CN2470352Y Waste-solution treatment apparatus |
| 01/09/2002 | CN1330190A Disintegrating system in waste pipe |
| 01/09/2002 | CN1330047A Process for treating sewage by neutralization and ion salt oxidization |
| 01/09/2002 | CN1077553C Waste water treatment device |
| 01/09/2002 | CN1077552C Method and equipment for quickly treating waste water for paper mill |
| 01/08/2002 | US6337015 Refrigerator-mounted water filtration apparatus |
| 01/08/2002 | US6337002 Alkaline ionic water conditioner |
| 01/08/2002 | CA2142010C Process and device for the biological treatment of organically polluted waste water and organic waste |
| 01/05/2002 | CA2314542A1 Mobile washing and wastewater recovery unit |
| 01/03/2002 | WO2002000557A2 Water treatment compositions |
| 01/03/2002 | DE10118371A1 Treatment of municipal rinsing water involving the removal of heavy metals etc and the recovery of useful salts using, inter alia, ion-exchangers |
| 01/03/2002 | DE10114738A1 Surface finishing process for copper-containing non-ferrous metals used in the metal processing industry comprises decontaminating the effluent and concentrate |
| 01/02/2002 | EP1167306A1 Equipment for purifying residual waters from horticulture and pomology centers and in situ phytosanitary treatment |
| 01/02/2002 | EP1165443A1 Water purification process |
| 01/02/2002 | CN2469002Y Equipment for treating water for culturing fish using circulation to keep its quality |
| 12/27/2001 | WO2001098217A1 Physico-chemical method for eliminating toxic and/or precious heavy metals contained in urban, industrial sludge and liquid animal manure |
| 12/27/2001 | WO2001098213A1 Method and device for treating industrial effluents to eliminate organic and/or mineral pollution |
| 12/26/2001 | CN2467512Y Ionic water treatment apparatus |
| 12/26/2001 | CN2467357Y Multifunction water supply automobile |
| 12/26/2001 | CN1327955A Process for desalinating seawater and comprehensive system for electric generation |
| 12/25/2001 | US6332979 Cooling tower water cleaning system |
| 12/20/2001 | WO2001055035A3 Device for treating water |
| 12/20/2001 | WO2000038815A9 Method and apparatus for disinfecting a water cooler reservoir |
| 12/20/2001 | US20010052502 Apparatus for combined ozonation and electrolytic chlorination water purification system |
| 12/20/2001 | US20010052499 Process for treating waste water containing a resin |
| 12/20/2001 | US20010052495 Method and apparatus for the removal of arsenic from water |
| 12/19/2001 | EP1163948A1 Apparatus and method for treating gases containig organic solvents |
| 12/19/2001 | EP1163190A1 Fluid treatment system |
| 12/19/2001 | CN2466152Y Combined intermediate water recycle apparatus |
| 12/19/2001 | CN2466151Y Domestic drinking water treating device |
| 12/19/2001 | CN2466150Y Zero-pressure sealed water cleaning purifier |
| 12/19/2001 | CN2466149Y High-quality direct drinking water sterilizing device |
| 12/19/2001 | CN2466148Y Field water purifier |
| 12/19/2001 | CN1326902A Comprehensive pressure solution and electrolysis air floating system |
| 12/19/2001 | CN1076210C Method of reducing the number of pollutions in a gas flow and device for carrying out said method |
| 12/13/2001 | WO2001094265A1 Method for treatment of water containing humic matter for the production of drinking water with enhanced coagulation stage using inorganics polymers of al and activated sio2 |
| 12/13/2001 | US20010050258 Sports equipment, pools, tanks; synergistic |
| 12/13/2001 | US20010050257 In-line filtration system for treatment of septic tank effluent |
| 12/12/2001 | EP1012122B1 Method for treating alkaline waste water |
| 12/12/2001 | CN2464728Y Multi-function domestic water purifier |
| 12/12/2001 | CN2464727Y Continuous water fed water processor |
| 12/12/2001 | CN2464726Y Hand carried water purifier |
| 12/11/2001 | US6328896 Providing input stream having first chlorine concentration; irradiating input stream with an ultraviolet unit to reduce first chlorine concentration; passing first product stream through a softener unit in fluid communication |
| 12/11/2001 | US6328893 Treating contaminated industrial waste water with activated sludge, pre-cleaning the treated product by subjecting same to a precipitation, subjecting the pre-cleaned product to reverse osmosis, and recirculating to operational factory stage |
| 12/11/2001 | CA2229964C Foodstuff preservations with iodinated ice |
| 12/11/2001 | CA2206622C Method of disinfecting water with iodine species |
| 12/11/2001 | CA2116090C In-ground water treatment system |
| 12/06/2001 | WO2001092607A1 Regeneration of plating baths |
| 12/06/2001 | WO2001092166A1 Method for biological cleaning of wastewater |
| 12/06/2001 | WO2001092165A1 Improved chemical treatment methods and apparatus |
| 12/06/2001 | WO2001047816A3 Method and device for purifying untreated water |
| 12/06/2001 | WO2001042144A3 Device and method for treating water with ozone generated by water electrolysis |
| 12/06/2001 | US20010048909 Apparatus and method for preparation of a peritoneal dialysis solution |
| 12/06/2001 | US20010047956 Particle collection vessel, chemical doser, sorbent column for removing amalgam particles and/or dissolved metals such as mercury from dental effluents |
| 12/06/2001 | US20010047538 Thermo-evaporation type toilet system |
| 12/05/2001 | EP0971858B1 Method for treating waste water, especially from and malt houses and breweries |
| 12/05/2001 | CN2463387Y Apparatus for treatment of domestic drinking water |
| 12/05/2001 | CN2463386Y Self-flushing multi-stage filtering water purifier |
| 12/05/2001 | CN1324771A Power-saving underground city sewage treatment technology |
| 12/05/2001 | CN1324770A Method of treating waste water from cane sugar rfinery completely |
| 12/05/2001 | CN1075793C Process for purifying effluent from urea production plants |
| 12/05/2001 | CN1075792C Underground sewage percolating and middle water reusing technology |
| 12/04/2001 | US6325936 Adding organic coagulant of amine/quaternary ammonium salt to coagulate resin, mixing polyacrylamide to cause flocculation, adding inorganic coagulant, separating by flotation, digesting with activated sludge, settling, filtering |
| 12/04/2001 | US6325929 Replacement filter cartridge for water filtering system |
| 12/04/2001 | US6325916 Entraining oxidant in aqueous solution, maintaining super atmospheric pressure, oxidizing, selectively inducing pressure to flocculate oxidized contaminants into separate phase of aqueous solution |
| 12/04/2001 | CA2053259C Method of processing water, in particular bath water |
| 11/30/2001 | CA2310397A1 Computer controlled water dispenser |