| Patents for C02F 103 - Nature of the water, waste water, sewage or sludge to be treated (11,124) |
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| 01/02/2002 | EP1165443A1 Water purification process |
| 01/02/2002 | CN1329577A Method for iodination of water and beverages |
| 12/20/2001 | WO2001096243A1 Process for desalination of seawater |
| 12/05/2001 | CN1075793C Process for purifying effluent from urea production plants |
| 10/17/2001 | EP0706659B1 Device for analyzing a fluid medium |
| 09/18/2001 | US6290812 Adjusting magnecium content of process water;supplying carbonate source to process water to precipiate calcium as calcium carbonate; adding white liquor to precipitate metals; adding flocculating agent; separation by floation |
| 09/18/2001 | CA2108118C Aqueous phase removal of nitrogen from nitrogen compounds |
| 09/11/2001 | CA2177161C Vaporizing and concentration drying apparatus and method |
| 08/08/2001 | EP0932582B1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange resin |
| 07/11/2001 | CN1303356A Method for recovering fluorinated alkanoic aoids from waste water |
| 06/14/2001 | WO2001010784A3 Wasser still with pervaporation membrane and method of operation thereof |
| 05/25/2001 | WO2001036338A1 Process and system for treatment of waste streams containing water-soluble polymers |
| 05/10/2001 | WO2001032567A1 Method for treating aqueous effluents containing peroxidized compounds |
| 05/10/2001 | CA2389696A1 Method for treating aqueous effluents containing peroxidized compounds |
| 05/09/2001 | EP1097908A1 Circuit purification for the papermaking industry |
| 04/26/2001 | WO2001028935A1 Method and device for biologically purifying waste water |
| 04/26/2001 | WO2001028934A1 Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution |
| 04/25/2001 | EP1093441A1 Method for recovering fluorinated alkanoic acids from waste waters |
| 04/18/2001 | CN1292053A Method for treating process water |
| 04/17/2001 | US6217759 Installation for biochemical sewage treatment |
| 02/28/2001 | EP1078885A1 Material for introducing physiologically-essential inorganic elements into drinkable water |
| 02/27/2001 | US6193939 Apparatus for ultraviolet light treatment of fluids |
| 02/15/2001 | WO2001010784A2 Wasser still with pervaporation membrane and method of operation thereof |
| 02/15/2001 | WO2001010782A1 Method for desalination of salted water |
| 01/24/2001 | CN1281417A Method and apparatus for treating liquids and slurries |
| 01/23/2001 | US6177015 Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution |
| 12/28/2000 | WO2000078682A1 Method of decomposing organic compounds in water |
| 12/28/2000 | CA2375245A1 Method of decomposing organic compounds in water |
| 12/21/2000 | WO2000076661A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 12/21/2000 | CA2374224A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 12/20/2000 | EP1060306A1 Method for treating process water |
| 12/14/2000 | WO2000075080A1 Apparatus for ultraviolet light treatment of fluids |
| 11/30/2000 | WO2000071467A1 Method for removal of nano-sized pathogens from liquids |
| 11/30/2000 | CA2374219A1 Method for removal of nano-sized pathogens from liquids |
| 11/28/2000 | USRE36972 Electrolytic cell for generating sterilization solutions having increased ozone content |
| 11/15/2000 | CN1058422C Ion-exchange resin mixed bed removing suspended impure substance |
| 10/11/2000 | EP1042228A1 Method and apparatus for treating liquids and slurries |
| 10/10/2000 | US6129849 Process for accelerating reaction of ozone with AM catalyst |
| 10/04/2000 | EP1040083A1 Installation for biochemichal sewage treatment |
| 09/28/2000 | WO2000056666A1 Water purification process |
| 09/28/2000 | CA2368022A1 Water purification process |
| 09/05/2000 | CA2084821C Ground contamination remediation process and apparatus |
| 08/24/2000 | WO2000026147A8 Method for purifying and softening water |
| 08/23/2000 | CN1055671C Method for treating waste water from chlorhydrin biology and containing organic chlorid compound |
| 08/22/2000 | CA2027453C Materials for removing suspended impurities and use thereof |
| 06/22/2000 | WO2000035815A1 Method for the iodination of water and beverages |
| 05/30/2000 | CA2073568C Purification of solutions |
| 05/17/2000 | EP0632746B1 Electrolytic cell for generating sterilization solutions having increased ozone content |
| 05/11/2000 | WO2000026147A1 Method for purifying and softening water |
| 05/10/2000 | EP0840711B1 Method of treating waste sludge |
| 05/03/2000 | EP0997440A2 Process for accelerating reaction of ozone and waste water with a catalyst |
| 04/20/2000 | WO1999057066A8 Method for the intensive desalination of water containing non-dissolved silicon |
| 04/11/2000 | CA2022884C A continuously and automatically functioning device for the drainage of sludge, especially of sewage sludge |
| 04/04/2000 | US6045068 Method for treating cement slurries |
| 03/21/2000 | CA2107689C Method for removing sulphur compounds from water |
| 02/17/2000 | WO2000007945A1 Method for processing mineralised water |
| 12/15/1999 | EP0765332B1 Process for removing waste pox alendronate and its by-products |
| 12/09/1999 | WO1999062830A1 Method for recovering fluorinated alkanoic acids from waste waters |
| 12/09/1999 | DE19824615A1 Verfahren zur Rückgewinnung von fluorierten Alkansäuren aus Abwässern Process for the recovery of fluorinated alkane acids from wastewater |
| 11/24/1999 | CN1046685C Method for control of biofouling |
| 11/16/1999 | CA2076375C Process and apparatus for pathogen reduction in waste |
| 11/11/1999 | WO1999057066A1 Method for the intensive desalination of water containing non-dissolved silicon |
| 11/04/1999 | WO1999055626A1 Material for introducing physiologically-essential inorganic elements into drinkable water |
| 10/27/1999 | CN1233230A Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange |
| 10/26/1999 | US5972058 Mixing solid, hydrophobic grains of peat with waste sludge to be treated, extrusion to crush cell structure and extract water, coating resulting particles, hardening and disinfecting |
| 10/19/1999 | CA2212763C Electrolytic hydrogen dissolved water, and method and apparatus for production thereof |
| 09/29/1999 | EP0513352B1 Method of cleaning soil water |
| 09/10/1999 | WO1999045192A1 Method for treating process water |
| 09/10/1999 | CA2322209A1 Method for treating process water |
| 08/04/1999 | EP0932582A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange resin |
| 07/07/1999 | CN1043963C Oil-absorbing article |
| 06/24/1999 | WO1999031015A1 Method and apparatus for treating liquids and slurries |
| 06/15/1999 | CA2136200C Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 06/02/1999 | CN1043537C Aqueous suspensions of colloidal particles, preparation and use of the suspensions |
| 04/21/1999 | CN1043079C Device for analyzing fluid medium |
| 04/15/1999 | WO1999018038A1 Installation for biochemichal sewage treatment |
| 04/15/1999 | CA2305186A1 Installation for biochemichal sewage treatment |
| 03/30/1999 | CA2130911C Electrolytic cell for generating sterilization solutions having increased ozone content |
| 02/25/1999 | WO1999008768A1 Filtration method and device for liquid purification |
| 01/26/1999 | US5863982 Water-in-oil emulsion with droplet size of about 200 to about 4000 |
| 12/15/1998 | US5849191 Wastewater treatment method, method of suspensions separation and method of saturation of liquid with gas |
| 10/14/1998 | CN1196033A Process for treating surplus activated sludge |
| 09/22/1998 | US5810975 Apparatus for extracting solid residue from a fluid by evaporation |
| 09/22/1998 | CA2141550C Aqueous suspensions of colloidal particles, preparation and use of the suspensions |
| 09/09/1998 | EP0641292B1 Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 09/09/1998 | CN1039701C Method and solid material body for purifying fluids such as water, aqueous fluids and liquid fuels |
| 09/01/1998 | US5800714 Deactivating a water soluble chain transfer agent |
| 08/26/1998 | EP0740582B1 Oil-absorbing article |
| 08/18/1998 | US5795842 Floating aticle |
| 08/13/1998 | WO1998034881A1 Receptacle for sterilizing drinking water |
| 08/04/1998 | US5788835 Water purifier having degassor and membrane distillation elements |
| 07/07/1998 | CA2068765C Method for the control of biofouling |
| 06/10/1998 | EP0759012B1 Process for removing polluting material from water or wet solid matter |
| 05/20/1998 | EP0842125A1 Process for treating a surplus activated sludge |
| 05/20/1998 | EP0700873A4 Waste water treatment method, suspensed matter separation method, and method for saturating a liquid with a gas |
| 05/13/1998 | EP0840711A1 Method of treating waste sludge |
| 05/13/1998 | EP0690822B1 Water purifier, especially for domestic use |
| 04/30/1998 | WO1998017586A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange |
| 04/30/1998 | CA2269331A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange |
| 04/14/1998 | US5738789 Method of purification of polluted underground water |