| Patents for B01D 24 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (8,047) |
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| 01/16/2002 | CN2472079Y Flame resistant oil regenerator |
| 01/16/2002 | CN1331613A Appts. for cleaning filter cloth in filtering device |
| 01/10/2002 | US20020003117 Process for recovering crystals from a slurry |
| 01/10/2002 | US20020002909 Method and device for precipitating beverage sediment |
| 01/09/2002 | EP1170417A1 Method for pulping and cleaning of waste paper containing impurities |
| 01/09/2002 | EP1170280A2 Process for recovering crystals from a slurry |
| 01/09/2002 | CN2469970Y Deep-bed filter |
| 01/09/2002 | CN2469969Y Oil-removing filtering machine |
| 01/09/2002 | CN2469968Y Filtering-washing integrated apparatus for preparing mesophase carbon microballs |
| 01/09/2002 | CN1077553C Waste water treatment device |
| 01/08/2002 | CA2156715C Improved strainer |
| 01/03/2002 | WO2001026772B1 Recyclable filter cartridge and pressure vessel |
| 01/02/2002 | CN2469050Y Water distributing means for high efficiency gravity and homogeneous granular filtering tank |
| 01/02/2002 | CN2468558Y Miniature and automatic control water treatment equipment |
| 01/02/2002 | CN2468557Y Two drum low pressure filtering apparatus |
| 01/01/2002 | US6334958 Process for minute dosing of gravity media filters |
| 12/27/2001 | WO2001097948A2 Apparatus and method for separation fluids from solids, providing suction on the sides and/or underneath a carrier belt |
| 12/27/2001 | WO2001097944A1 Method and device for cleaning filter material |
| 12/27/2001 | US20010054583 Filter cartridge for water treatment device |
| 12/27/2001 | US20010054581 Rotating device for continuously filtering a liquid such as a solution containing a precipitate |
| 12/26/2001 | CN1328529A Purification system for disposal of polluted or waste water using water plants |
| 12/20/2001 | WO2001096246A1 Effluent purifying device |
| 12/20/2001 | US20010052503 Apparatus and method for sanitizing and cleaning a filter system |
| 12/20/2001 | CA2412487A1 Effluent purifying device |
| 12/19/2001 | EP1163400A1 Water treatment system and method using permeable embankments, weirs, walls or the like |
| 12/19/2001 | CN2465762Y Suspension bed filter unit |
| 12/19/2001 | CN2465761Y Automatic adjustable density filter |
| 12/12/2001 | EP0912451B1 A method and a device for the purification of fluids |
| 12/12/2001 | CN2464419Y Active deep filter core |
| 12/12/2001 | CN1326375A Slow sand filter for use with intermittently flowing water supply and use thereof |
| 12/06/2001 | US20010048910 Arranging dust particles in several beds connected in series, passing feed stream through all beds, bypassing the bed wherein dust was deposited first, continually bypassing deposited beds, then withdrawing treated feed stream |
| 12/05/2001 | CN1075792C Underground sewage percolating and middle water reusing technology |
| 12/05/2001 | CN1075740C 固液分离器 Solid-liquid separator |
| 12/04/2001 | US6325931 Filtration system having a low profile extruded underdrain |
| 11/29/2001 | US20010045383 Method and apparatus for treating stormwater runoff |
| 11/28/2001 | CN1323645A Filtering drum able to assembled from the top of platform used for filtering assemblings |
| 11/27/2001 | US6322705 Passing water through a tank containing ph changing material and layers of granulated substances, forcing to swirl, allowing cleaned layers to settle in reverse order densities |
| 11/27/2001 | US6322704 Fluid flow can be reversed in a backwash operation to remove the filtered matter and regenerate the filter for reuse |
| 11/22/2001 | DE10022538A1 Device for sediment separation from rinsing liquid, especially for automatic drinks machines has a two stage filter arrangement to speed filtering and reduce maintenance |
| 11/21/2001 | EP1155749A2 A fine solids separator |
| 11/21/2001 | EP1154830A1 Apparatus for cleaning a filter cloth in a filtering device |
| 11/21/2001 | EP0762920B1 Oil filter |
| 11/20/2001 | US6319413 Method of filtering liquid using a vertical filter |
| 11/20/2001 | US6319400 Deep bed filtration system |
| 11/14/2001 | EP1152984A1 Novel method for filtering surface water with thin supernatant layer and implementing plant |
| 11/13/2001 | US6315897 Rain water run-off filtering system |
| 11/08/2001 | WO2001083076A1 Filtration device, and method of cleaning filter material contained in filtration device |
| 11/07/2001 | EP1150756A1 Filter apparatus with sand filter bed |
| 11/07/2001 | CN2458044Y Water filter capable of mechanically regulating piling-up density of filtering fibre |
| 11/06/2001 | US6312611 Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in filter underdrain flumes |
| 11/06/2001 | US6312592 Clarifier for liquids laden with suspended matter |
| 11/01/2001 | WO2001080966A1 Vertical filter and method |
| 11/01/2001 | WO2001026772A3 Recyclable filter cartridge and pressure vessel |
| 11/01/2001 | CA2406280A1 Vertical filter and method |
| 10/31/2001 | EP1149052A1 Process for removing organic and inorganic contaminants from phenolic stripped sour water employing reverse osmosis |
| 10/31/2001 | EP0695383B1 Post-treatment of nonwoven webs |
| 10/31/2001 | EP0626932B1 Dissolved air flotation |
| 10/31/2001 | CN1073869C Fluidized bed filtering apparatus |
| 10/25/2001 | WO2001079117A2 Method and apparatus for treating of water/wastewater |
| 10/25/2001 | WO2001078864A1 Method and apparatus for treating of water/wastewater |
| 10/25/2001 | US20010032813 Fluid treatment media support system |
| 10/24/2001 | CN2455332Y Direct filtering plate |
| 10/24/2001 | CN2455331Y Filter for oil containing waste water |
| 10/24/2001 | CN1073457C Device for filtering, washing and drying solid material-liquid mixture |
| 10/23/2001 | US6306310 Creates more room inside the common main conduit by raising interface of gas and liquid in unique manner during concurrent gas and liquid backwash, while at the same time providing clear passages inside common main conduit for gas flow |
| 10/23/2001 | US6306309 Method for cleaning sand in a sand bed |
| 10/17/2001 | EP1144700A1 Improved method for filtering a metal liquid on a bed of refractory particulate material |
| 10/11/2001 | US20010027946 Leukocyte-removing filter comprising a matrix and ultra-fine fibers of given diameter and weight percent amount |
| 10/10/2001 | CN2452591Y Back-washing apparatus for water filtering machine |
| 10/03/2001 | CN1315219A Solid-liquid separator |
| 10/03/2001 | CN1315218A Device for mixing, filtering and treating airflow |
| 09/26/2001 | EP1135199A1 Slow sand filter for use with intermittently flowing water supply and method of use thereof |
| 09/26/2001 | CN2449783Y Filter head type filter plate |
| 09/26/2001 | CN2449782Y Clean water producing machine |
| 09/20/2001 | US20010022287 Filtering device |
| 09/20/2001 | US20010022286 Filtration system including a back washable pre-filtration apparatus |
| 09/19/2001 | EP1059980A4 Antimicrobial filter cartridge |
| 09/19/2001 | EP0776244B1 Lateral member assembly for underdrain lateral system |
| 09/19/2001 | CN1313143A Direct filtration type filter plate |
| 09/18/2001 | US6290848 Filter cartridge for gravity-fed water treatment devices |
| 09/18/2001 | US6290842 Coagulator |
| 09/13/2001 | DE10010255A1 Sterilizing and decontaminating particle-containing water-treatment filters by treatment with a chloroxide-, halogen- and/or peroxide-containing aqueous solution |
| 09/12/2001 | CN2447036Y Improved filter |
| 09/12/2001 | CN1312123A Two-way filtering cylinder filtering velocity ratio controlling method |
| 09/12/2001 | CN1070726C 水处理装置 Water treatment plant |
| 09/11/2001 | US6287474 Liquid treatment media regeneration apparatus and process |
| 09/07/2001 | WO2001064310A1 Method for flushing particle-bearing filter beds, to sterilise and decontaminate the same |
| 09/06/2001 | US20010019027 Solid-liquid separator |
| 09/05/2001 | EP1129754A2 Solid-liquid separator |
| 09/04/2001 | US6284136 Apparatus for cleaning a filter surface |
| 09/04/2001 | CA2040853C Method and apparatus for thickening lime sludge |
| 09/01/2001 | CA2338898A1 Solid-liquid separator |
| 08/29/2001 | CN2444671Y Steam back flushing device for water filtering |
| 08/29/2001 | CN1310272A Fully automatic purifying tank |
| 08/28/2001 | US6280619 Inline filter having swivel fitting |
| 08/23/2001 | WO2001060494A1 Solid buoyant media induced flotation |
| 08/22/2001 | EP1059978A4 Filter bed differential pressure monitoring system |
| 08/22/2001 | CN2443765Y 蜂窝式滤板 Cellular Plates |
| 08/21/2001 | US6277274 Method and apparatus for treating stormwater runoff |
| 08/16/2001 | EP0949953B1 Common base for a filter container and a pump |