| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 04/06/2000 | DE19844006A1 Process and assembly to separate and wash sand particles in a waste water treatment plant renders mineral sand fit for disposal to an open site |
| 04/05/2000 | EP0989956A1 Polysilicate microgels and silica-based materials |
| 04/05/2000 | EP0989955A1 Polysilicate microgels |
| 04/05/2000 | EP0906144B1 Water treatment plant and set of modular equipment obtained by placing such plants in parallel |
| 04/05/2000 | EP0700312B1 Apparatus for discharge of sediment from a tank |
| 04/05/2000 | CN2372035Y 固液分离器 Solid-liquid separator |
| 04/05/2000 | CN2372034Y Street sweeper sewage recycle utilization equipment |
| 04/04/2000 | US6045709 Methods for sludge collection |
| 03/30/2000 | WO2000017451A1 An acid colloid in a microparticle system used in papermaking |
| 03/30/2000 | WO2000017450A1 Silica-acid colloid blend in a microparticle system used in papermaking |
| 03/30/2000 | WO2000017112A1 Method of dewatering difficult sludges |
| 03/30/2000 | WO2000016872A1 Methods and apparatus for processing temperature sensitive materials |
| 03/29/2000 | CN1248924A Coagulation precipitator |
| 03/22/2000 | EP0986428A1 Method and apparatus for recovery of water and slurry abrasives used for chemical and mechanical planarization |
| 03/22/2000 | CN1248173A Wastewater treating agent, method for wastewater treatment, sludge dehydrant and method for sludge treatment |
| 03/22/2000 | CN1247838A Cationic high-molecular flocculant and its preparation |
| 03/15/2000 | EP0985641A2 Process for treating waste water containing cutting oil |
| 03/15/2000 | EP0985640A2 Process for treating waste water containing a resin |
| 03/15/2000 | EP0985003A1 Agents for unsticking paint, and sedimentation agents |
| 03/15/2000 | EP0984800A1 Method of reducing the possibility of transmission of spongiform encephalopathy diseases by blood products |
| 03/15/2000 | CN2368585Y Depositing tank with declined pipe |
| 03/14/2000 | US6036869 Novel process of manufacturing high molecular weight emulsion copolymers by free radical polymerization of monomers in a semi-batch process; polymer is hydrolyzable in bayer process liquor to an acid form being an active red mud flocculent |
| 03/14/2000 | US6036866 Automatic regeneration of individual fluid treatment units without interruption of the production of treated water; decision of when to regenerate based on the number of units in service and the fractional capacity of each unit |
| 03/14/2000 | US6036750 Separator with rotating filter |
| 03/14/2000 | US6036749 Variable ptich helices; operates on combined cetrifugal and gravitational forces; separation of gases in drilling fluids in petroleum wells |
| 03/14/2000 | CA2111473C Scum removal apparatus |
| 03/14/2000 | CA2025265C Method for preparing a ceramic-forming prepreg tape |
| 03/09/2000 | WO2000012192A1 Apparatus for the separation of solids and liquids |
| 03/09/2000 | DE19751339A1 Process compact coal tailings with coarse particles extends the service life of the sedimentary de-watering basin. |
| 03/08/2000 | EP0983210A1 Method of water treatment using zeolite crystalloid coagulants |
| 03/08/2000 | EP0790851B1 Activated sludge degassing process and device |
| 03/08/2000 | CN2367368Y Hydraulic self-controlled integrated water-purifier |
| 03/08/2000 | CN1246446A Water purification agent |
| 03/07/2000 | US6033901 System and process for in tank treatment of crude oil sludges to recover hydrocarbons and aid in materials separation |
| 03/07/2000 | US6033577 Coordination of liquid-solid separators and fluid tanks |
| 03/07/2000 | US6033552 Method for purification of natrium sulphate |
| 03/02/2000 | WO2000011052A1 Method and composition of a hydrophilic polymer dispersion containing an inorganic flocculant to be used for the treatment of waste water |
| 03/02/2000 | WO2000010680A1 Apparatus and method for handling waste |
| 03/02/2000 | WO2000010398A1 Gut cleaning method and device for removal of fat or other floating substances |
| 03/02/2000 | WO1999054257A8 Inorganic composition, process of preparation and method of use |
| 03/02/2000 | DE19837080A1 Waste water treatment filter basin wall parapet reinforcement spreads gantry weight and provides weather protection |
| 03/01/2000 | CN1245780A Fuelling station car-washed sewage treatment and cyclic utilization system |
| 03/01/2000 | CN1245779A Sewage treatment installation |
| 02/29/2000 | US6031037 A stable, pourable, one-pack liquid blends comprising an active polymer for improving the coagulation or flocculation, and which is in the form of a water-in-water emulsion |
| 02/29/2000 | US6030529 Biological reactor including settler assembly |
| 02/29/2000 | US6030525 Cost-orientated control of a regenerable filter |
| 02/29/2000 | US6029518 Manipulation of liquids using phased array generation of acoustic radiation pressure |
| 02/29/2000 | US6029479 Fine particle lint filter |
| 02/24/2000 | WO2000009242A1 Method and assembly for separating solids from gaseous phase |
| 02/24/2000 | DE19836563A1 Klarwasserabzug Clear water discharge |
| 02/23/2000 | EP0980699A1 Plant for cleaning or recovering liquids with suspended particles |
| 02/22/2000 | US6027658 A reservoir or tank for filtering industrial fluids, such as coolants, detergents, oils, aqueous emulsions used in machinging, finishing, cleaning without the use of any filter media or mechanical assistance |
| 02/22/2000 | US6027657 Systems and methods for collecting diluted mononuclear cells |
| 02/22/2000 | US6027645 Granular media filter including media settler assembly |
| 02/22/2000 | US6027441 Systems and methods providing a liquid-primed, single flow access chamber |
| 02/17/2000 | WO2000007689A1 Apparatus for circulating a fluid |
| 02/17/2000 | WO1998056484A9 Microbial sampler and concentrator |
| 02/17/2000 | DE19837018A1 Skimmer moves sludge onto flip tray for efficient side-removal from the surface of a basin in which sludge generated by various processes |
| 02/17/2000 | DE19834942A1 Water spraying cleaning device for rotated hydraulic fluid filter elements comprises flushing tank in housing, with holding device and water spray nozzles |
| 02/17/2000 | CA2339780A1 Apparatus for circulating a fluid |
| 02/16/2000 | EP0979902A1 Well water collection chamber and sedimentation tank therefor |
| 02/16/2000 | EP0979668A2 Sewage discharge |
| 02/16/2000 | EP0979148A1 Hydrocyclone for separating immiscible fluids and removing suspended solids |
| 02/16/2000 | EP0979132A1 Apparatus for separation of solids from a liquid |
| 02/16/2000 | CN2363771Y High-efficiency sewage purifier |
| 02/16/2000 | CN2363769Y Cocurrent clarificator |
| 02/16/2000 | CN2363768Y Inclined tube settling tank |
| 02/16/2000 | CN1244501A Treating apparatus for waste water containing fluoride and its method |
| 02/16/2000 | CN1049365C Bell pulse settling pond |
| 02/15/2000 | US6024883 Testing disk for handling and carrying samples and method for analyzing, storing, displaying and printing data from blood typing and other related procedures |
| 02/15/2000 | US6024874 Hydrocyclone separator |
| 02/10/2000 | WO2000006280A1 Apparatus and process for removing metallic particles from effluent liquid waste |
| 02/09/2000 | CN2362568Y Mechanical ultrasonic solid liquid continuous separator |
| 02/09/2000 | CN2362567Y Static separation precipitator |
| 02/09/2000 | CN2362566Y Clarification tank |
| 02/08/2000 | US6022475 Brush cleaning device |
| 02/08/2000 | US6021988 Housing pan for supporting a fluid delivery pump |
| 02/08/2000 | US6021787 Discharging a pressurized fluid stream through nozzle |
| 02/03/2000 | WO2000004978A1 Concentration of particles in a fluid within an acoustic standing wave field |
| 02/03/2000 | WO2000004972A1 A device of three-chamber type for purifying liquid |
| 02/03/2000 | CA2338228A1 A device of three-chamber type for purifying liquid |
| 02/02/2000 | EP0976436A1 Wastewater treating agent, method for wastewater treatment, sludge dehydrant, and method for sludge treatment |
| 02/02/2000 | EP0975429A4 A centrifuge apparatus with temperature control means |
| 02/02/2000 | EP0975429A1 A centrifuge apparatus with temperature control means |
| 02/02/2000 | CN2361358Y Ash and water separator |
| 02/02/2000 | CN1243543A Purification and/or concentration of DNA by cross-flow filtration, separation of endotoxins from nucleic acid preparation |
| 02/02/2000 | CN1243542A Method for purifying DNA in cross-flow centrifuge |
| 02/02/2000 | CN1243532A Aqueous dispension of polymer with high-performance viscosity and preparation and use |
| 02/02/2000 | CN1243451A An apparatus for the ultrasonic separation and cleaning of a suspension |
| 02/02/2000 | CN1048992C Methods of making and using high molecular weight arylamide polymers |
| 02/01/2000 | US6019898 Weir assembly with movable baffle member |
| 01/27/2000 | WO2000003954A1 Process for recovering compounds of float material from waste water |
| 01/27/2000 | WO2000003952A1 Method for treating a fluorine-containing waste water and treating apparatus |
| 01/27/2000 | WO2000003780A1 Separator |
| 01/27/2000 | DE19832959A1 Abscheider mit Schlammfang Separator with sludge trap |
| 01/26/2000 | EP0974386A1 Separator with sludge collector |
| 01/26/2000 | EP0973883A2 Method of purifying dna in a cross-flow centrifuge |
| 01/26/2000 | EP0973595A1 Modular lamellar clarifier |
| 01/26/2000 | EP0971856A4 Three zone dissolved air flotation clarifier with improved efficiency |
| 01/26/2000 | CN2360140Y Solid-gas-liquid three-phase separating appts |