| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 06/17/1997 | US5638557 Sink trap with valuables capture vessel |
| 06/12/1997 | WO1997020775A1 Flotation apparatus and process |
| 06/12/1997 | WO1997020635A1 A centrifuge apparatus |
| 06/12/1997 | CA2239468A1 Flotation apparatus and process |
| 06/11/1997 | EP0778245A1 Method for removing heavy metals form waste water |
| 06/11/1997 | EP0777505A1 Systems and methods for estimating platelet counts |
| 06/10/1997 | US5637233 Pumping grease and water from grease trap into multicompartment mobile tank truck, siphoning slurry from first to second compartment, draining water, returning water to trap |
| 06/10/1997 | US5637229 Self flocculating separation medium and method |
| 06/10/1997 | US5637221 Removing contaminants by combination of settling, flotation, flocculation, biological conversion to produce treated wastewater which can be recycled or safely disposed of in municipal sewer |
| 06/10/1997 | US5637152 Soil washing apparatus and method |
| 06/05/1997 | DE19544455A1 Biological treatment of waste water |
| 06/04/1997 | EP0776864A1 Process for the aerobic biological purification of water |
| 06/04/1997 | EP0776686A1 Multi-stage gas/solids separator |
| 06/04/1997 | CN2255302Y Rotation-flow aeration sand-removing device |
| 06/04/1997 | CN2255301Y High-efficient rake-free mortar concentrating device |
| 06/03/1997 | US5635068 Combination centrifugal separator for air and solids |
| 06/03/1997 | US5635024 Mixing with water, water soluble surfactant and polymeric coagulant, then acidification to cause coagulation and flocculation of organic compounds |
| 05/28/1997 | EP0775165A1 Dadmac/vinyl trialkoxysilane copolymers and their use in wastewater treatment |
| 05/28/1997 | EP0775011A1 Enhanced yield blood processing systems and methods establishing controlled vortex flow conditions |
| 05/28/1997 | EP0775010A1 Blood collection system deriving instantaneous component yield |
| 05/28/1997 | EP0775009A1 System for deriving collected blood storage parameters |
| 05/28/1997 | EP0775008A1 Blood processing systems and methods which restrict in flow of whole blood to increase platelet yields |
| 05/28/1997 | EP0775007A1 Enhanced yield blood processing systems with angled interface control surface |
| 05/28/1997 | EP0775006A1 Blood processing systems which monitor citrate return |
| 05/28/1997 | EP0775005A1 Blood processing systems controlled by apparent hematocrit |
| 05/28/1997 | EP0620754B1 Method of recovery of printing ink wastes |
| 05/28/1997 | EP0596052B1 Method and inlet device for feeding flat sand traps and settling tanks/secondary settler |
| 05/28/1997 | DE19635364A1 Filter unit for contaminated liquid |
| 05/28/1997 | DE19532802C1 Use of industrial grinding sludges contaminated with thick inseparable oil by microbial decomposition |
| 05/28/1997 | CN1150841A Method of selection of population or subpopulation of sample |
| 05/27/1997 | US5633329 Polymerizing of water soluble unsaturated monomers in aqueoussolution in presence of a promoter in a tubal reactor |
| 05/27/1997 | US5632893 Enhanced yield blood processing systems with angled interface control surface |
| 05/27/1997 | CA2089697C Polyaluminumchlorosulfates and preparation and uses thereof |
| 05/27/1997 | CA2061827C Method and apparatus for thickening fine particle suspensions |
| 05/27/1997 | CA2043327C Method and apparatus for removal of floating immiscible liquids |
| 05/22/1997 | WO1997018474A1 Method of selecting a population or subpopulation of a sample utilizing particle and gravity sedimentation |
| 05/22/1997 | WO1997018167A1 High performance polymer flocculating agents |
| 05/22/1997 | WO1997018039A1 Vortex system for separating particles from a liquid stream |
| 05/22/1997 | WO1997018025A1 Plate separator equipped with movable plates |
| 05/22/1997 | DE19601481C1 Scoop wheel provides improved washing to produce clean sand output |
| 05/22/1997 | CA2237119A1 Method of selecting a population or subpopulation of a sample utilizing particle and gravity sedimentation |
| 05/21/1997 | EP0773811A1 Systems and methods for predicting blood processing parameters |
| 05/21/1997 | CN1150127A Process for aerobic biological purification of water |
| 05/20/1997 | US5631166 Specimen disk for blood analyses |
| 05/15/1997 | WO1997017123A1 A launder arrangement, settling tank and a process for removing surface froth |
| 05/15/1997 | DE19541950A1 Waste collection pump tanker vehicle |
| 05/15/1997 | CA2237552A1 A launder arrangement, settling tank and a process for removing surface froth |
| 05/14/1997 | EP0773055A2 Method and apparatus for handling particles by acoustic radiation |
| 05/14/1997 | EP0619752B1 Compact enhanced yield blood processing systems |
| 05/14/1997 | CN2254004Y Precipitation tower |
| 05/14/1997 | CN1034861C Process for recovering and use of overflow buck in concentration tank |
| 05/13/1997 | US5628915 Within processing chamber that perfuse blood into path forseparation into components |
| 05/13/1997 | US5628911 Filtration of soot/ash water slurries and improved partial oxidation process for hydrocarbon feedstocks |
| 05/13/1997 | US5628903 Apparatus for the removal of clarified waste water from circular tanks |
| 05/09/1997 | WO1997016378A1 Removing suspended solids by addition of hydroxamated polymers in the bayer process |
| 05/09/1997 | WO1997016248A1 Heavy metal removal agent containing a sulphur compound |
| 05/09/1997 | WO1997016231A1 Apparatus for separating suspended particles by means of ultrasonic waves |
| 05/06/1997 | US5627260 Quaternized tertiary aminomethyl acrylamide polymer microemulsions with improved performance |
| 05/06/1997 | US5626767 Acoustic filter for separating and recycling suspended particles |
| 05/06/1997 | US5626748 Liquid separator |
| 05/06/1997 | US5626746 Filtering device containing chemical encapsulation filter and size discriminating filter |
| 05/06/1997 | US5626745 Waste water purification system |
| 05/02/1997 | EP0770424A1 Apparatus for processing products by ultrasound |
| 05/02/1997 | EP0618832B1 Enhanced yield blood processing systems and methods establishing vortex flow conditions |
| 05/02/1997 | EP0618831B1 Enhanced yield platelet collection systems and methods |
| 05/01/1997 | WO1997015368A1 Hydrocyclone for liquid-liquid separation and method |
| 04/29/1997 | US5624580 Separating liquid suspensions |
| 04/29/1997 | US5624569 Recycled paper, using silicon-containing polyelectrolyte polymer coagulant |
| 04/29/1997 | CA2052154C Liquid purification systems and methods |
| 04/24/1997 | WO1997014765A1 Method for extracting oil from oil-contaminated soil |
| 04/24/1997 | WO1997014491A1 Separator with solids diverter |
| 04/24/1997 | DE19618126C1 Simultaneous flotation and sedimentation carried out in circular tank under anaerobic conditions |
| 04/24/1997 | DE19538820A1 Waste water process passes water through mechanical filter |
| 04/23/1997 | EP0706499B1 Method of reducing the concentration of finely dispersed solids in process solutions in paper manufacturing |
| 04/23/1997 | EP0682565B1 Device with an aggregate separator for the treatment of dirty water |
| 04/23/1997 | EP0662857A4 Systems and methods for reducing leukocytes in cellular products. |
| 04/22/1997 | US5622647 Using a diallyldimethylammonium chloride copolymer as coagulant |
| 04/22/1997 | US5622623 Fuel filter element |
| 04/22/1997 | US5622533 Vinylamine copolymer coagulants for use in coal refuse dewatering |
| 04/22/1997 | CA2018392C Highly concentrated aqueous suspension of minerals and/or fillers and/or pigments |
| 04/16/1997 | EP0767698A1 COMPOSITION AND IMPROVED pH DRIVEN METHOD FOR WASTEWATER SEPARATION USING AN AMPHOTERIC CARBOXYLATE AND A CATIONIC DESTABILIZER COMPOSITION |
| 04/16/1997 | CN2252041Y Small spacing tilted plate separating equipment |
| 04/16/1997 | CN1147801A Process for removing polluting material from water or wet solid matter |
| 04/16/1997 | CN1147774A Method and device for treating composite elements |
| 04/15/1997 | US5620662 Temporary liquid storage cavities in a centrifuge tube lid |
| 04/15/1997 | US5620609 Filling elongated body with suspension, allowing to settle, directing ray of light to liquid surface at angle, positioning collector to receive scattered light, measuring at different times to determine rate of change |
| 04/15/1997 | US5620601 Wear strip assembly for use in a waste water treatment facility |
| 04/15/1997 | US5620600 Improvements to settlers |
| 04/15/1997 | US5620594 Water management system |
| 04/10/1997 | DE19545660C1 Removing heavy metals from waste water using ferri- or ferromagnetic particles |
| 04/09/1997 | EP0767143A2 Process and installation for sand removal and physiochemical clarification of municipal and industrial wastes |
| 04/09/1997 | EP0766587A1 Preliminary boom for clearing sludge from the surface of a sewage basin |
| 04/09/1997 | EP0548320B1 Process and device for separating metallic phases from other phases |
| 04/09/1997 | CN2251554Y Oily waste water centrifugal polymeric device |
| 04/08/1997 | US5618445 Septic tank solids retainer gas baffle |
| 04/08/1997 | US5618417 Water aeration system |
| 04/08/1997 | US5618410 Automatically draining vacuum apparatus |
| 04/03/1997 | WO1997012077A1 Method of discharging settling solid particles and apparatus therefor |
| 04/03/1997 | WO1997011766A1 Centrifugal separator with improved quiescent collection chamber |
| 04/03/1997 | DE19639932A1 2,5-di:hydro-furan deriv. prepn. |