| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 03/10/1998 | US5725762 Separation treatment system |
| 03/05/1998 | WO1998008587A1 Apparatus and method for separation of solids from liquid |
| 03/05/1998 | DE19635005A1 Car wash water treatment |
| 03/04/1998 | EP0826839A1 Method for the separation of sediments transported by waste water |
| 03/04/1998 | EP0826405A1 Sedimenter |
| 03/04/1998 | EP0826232A1 Method and device for wet-processing substrates in a vessel |
| 03/04/1998 | CN2275471Y Settling device |
| 03/04/1998 | CN1174815A High-effect anaerobic treatment device for waste water and method thereof |
| 03/04/1998 | CN1174814A Water purifier with pressure-bearing type stepless speed changing vortex reactor |
| 03/04/1998 | CN1037597C Water treatment plastic products for rectangular clarifiers |
| 02/25/1998 | CN2274980Y High efficiency solid and liquid concentrating machine |
| 02/25/1998 | CN1174515A Centrifuge reagent delivery system |
| 02/24/1998 | US5720891 Collecting sediment from bottom of settling tank |
| 02/24/1998 | US5720890 Weir cleaning apparatus and method |
| 02/24/1998 | US5720880 Sugar centrifugal screen saver |
| 02/24/1998 | US5720308 Parts washer with solvent flow control |
| 02/19/1998 | WO1998006474A1 Continuous filtration and separation apparatus |
| 02/17/1998 | US5719010 Treatment method for treating effluents from a photographic development process |
| 02/17/1998 | US5718824 Collector hood for sedimentation tank |
| 02/17/1998 | US5718015 Mobile power wash device with water reclamation and hydrocarbon removal apparatus |
| 02/14/1998 | CA2189180A1 Process for treating a waste material |
| 02/12/1998 | WO1998005406A1 Waste-oil cleaning method and apparatus |
| 02/12/1998 | WO1998005400A1 System to clarify solids burdened liquid and recirculate it to use in continuous flow |
| 02/12/1998 | DE19643950C1 Bonding of plastics plates to concrete walls |
| 02/12/1998 | DE19632007A1 Vertical cylinder sludge settlement tank |
| 02/12/1998 | DE19631942A1 Fluid filter, especially for rain water |
| 02/12/1998 | DE19624834C1 Municipal waste water treatment basin |
| 02/12/1998 | CA2231115A1 Waste-oil cleaning method and apparatus |
| 02/11/1998 | EP0639102B1 A method of separating particles from a base liquid, and a device for performing the method |
| 02/11/1998 | CN1173141A Centrifuge with annular fiter |
| 02/11/1998 | CN1173140A Method and device for separating hemaleucin fibrin from blood blasma |
| 02/10/1998 | US5716530 Adding biopolymer to bayer process thickener overflow for improved solids separation |
| 02/10/1998 | US5716519 Apparatus for discharging fluid additives into a water treatment vessel |
| 02/10/1998 | US5715946 Method and apparatus for sorting particles suspended in a fluid |
| 02/05/1998 | WO1998004501A1 Wastewater treatment system and method |
| 02/05/1998 | DE19630831A1 Multistage biological sewage treatment system |
| 02/04/1998 | EP0821704A1 Water-soluble cationic copolymers and their use as flocculants and drainage retention aids |
| 02/04/1998 | EP0648193B1 Process and system for purifying waste water |
| 02/04/1998 | CN2273612Y Discharge mechanism of waste water settling purification tank |
| 02/04/1998 | CN1172080A Industrial sewage treating agent and its application method |
| 02/04/1998 | CN1172075A New process for gas-making waste water treatment |
| 02/03/1998 | US5714054 Treating hydroxide sludge in a centrifuge or chamber filter press |
| 02/03/1998 | US5714025 Dispersing ceramic forming powder, fiber, polymeric powder and adhesive to form prepreg tape, firing |
| 02/02/1998 | CA2187265A1 Clarified water system |
| 01/29/1998 | WO1998003244A1 Bead dewatering apparatus and method |
| 01/29/1998 | DE19639250A1 Effluent water sediment detection telescopic probe and floating oil probe |
| 01/28/1998 | EP0820335A1 Settling device for a fluid containing liquid, gas and particulate material, as well as a cleaning device provided herewith and a method for cleaning waste water |
| 01/27/1998 | US5711923 Hydroxymethyl diphosphonated polyacrylates for red mud treatment |
| 01/27/1998 | US5711888 Multilayered piezoelectric resonator for the separation of suspended particles |
| 01/22/1998 | WO1998002492A1 Derivatized rhodamine dye and its copolymers |
| 01/21/1998 | EP0819457A1 Process and apparatus for the filtration of sewage |
| 01/21/1998 | EP0819022A1 Process and apparatus for dewatering a suspension |
| 01/21/1998 | CN1037067C Method for purifying K-chicarragheenin from chicarra gheenin mixture |
| 01/17/1998 | CA2210556A1 Derivatized rhodamine dye and its copolymers |
| 01/15/1998 | WO1998001511A1 Reaction procucts of lyotropic liquid crystal salt complexes |
| 01/15/1998 | DE19627888A1 Raking blades for use in final settling tanks of sewage treatment plant |
| 01/15/1998 | DE19622727C1 Appts. for purifying rainwater |
| 01/14/1998 | EP0817686A1 Soil washing apparatus and method |
| 01/14/1998 | EP0765185A4 Apparatus and methods for separating solids from flowing liquids or gases |
| 01/13/1998 | US5707530 Method for clarifying contaminated fluids |
| 01/13/1998 | US5707523 Dynamic vertical solids separator |
| 01/08/1998 | WO1998000218A1 Method and apparatus for separating solid material from liquid |
| 01/08/1998 | WO1998000217A1 System for sucking sludge at the bottom of a sedimentation pond |
| 01/08/1998 | DE19625328A1 Sewage treatment system |
| 01/07/1998 | EP0815912A2 Method for a clearing of floating matters, and removal device |
| 01/07/1998 | EP0814886A1 Liquid/solids separator |
| 01/07/1998 | EP0814885A1 Method and apparatus for separating non-soluble particles from a liquid |
| 01/07/1998 | CN2271918Y Thickener with square pool |
| 01/07/1998 | CN1036898C Centrifugal press filtering sedimenfafion dewafering machine |
| 12/31/1997 | CN2271400Y Improved mud discharging appts |
| 12/29/1997 | EP0813630A1 Fractionator |
| 12/29/1997 | EP0813442A1 Method for enriching rare cell population |
| 12/24/1997 | WO1997048493A1 Pulp decontamination apparatus and method of use |
| 12/24/1997 | WO1997048468A1 Water treatment plant and set of modular equipment obtained by placing such plants in parallel |
| 12/24/1997 | CN1036774C Preparing method for zinc polysilicate flocculate agent and use |
| 12/23/1997 | US5700378 Method and apparatus for gravitational separation of fine articles from a liquid |
| 12/17/1997 | EP0812618A2 Resin fibers for treatment of oil bearing waste water and method of treating oil bearing waste water |
| 12/17/1997 | EP0812609A2 Centrifugal filter |
| 12/17/1997 | EP0812303A1 Flocculating agent containing aluminium and a polybasic carboxylic acid |
| 12/17/1997 | EP0560980B1 Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products |
| 12/16/1997 | US5698102 Lamellar separator |
| 12/16/1997 | US5698099 Hydrodynamic separator with an incorporated solids interceptor |
| 12/16/1997 | CA2006928C Decanter device |
| 12/10/1997 | EP0811017A1 Cellulose particles, method for producing them and their use |
| 12/10/1997 | EP0584305B1 Method for purifying a non-electrically conductive liquid |
| 12/10/1997 | CN1167447A Activated sludge degassing process and device |
| 12/09/1997 | US5695655 Longitudinal settler with flow separation |
| 12/09/1997 | US5695648 Monitoring velocities of liquid movement in various parts of rotating vessel during separation of sludge solids and liquids, then withdrawing liquid from identified areas of optimum velocity |
| 12/04/1997 | WO1997045201A1 Separation of minerals |
| 12/04/1997 | WO1997045186A1 Novel aromatic and aliphatic sulfonates and properties and applications thereof |
| 12/04/1997 | DE19717869A1 Heating system water filter assembly |
| 12/04/1997 | CA2228430A1 Novel aromatic and aliphatic sulfonates and properties and applications thereof |
| 12/03/1997 | EP0810322A2 Process for preparing retention and dewatering agents on the basis of polyaminoethers |
| 12/03/1997 | EP0809607A1 Self flocculating separation medium and method |
| 12/03/1997 | EP0809534A1 Mineral separator |
| 12/03/1997 | EP0739229A4 Density gradient medium for separating cells |
| 12/02/1997 | USRE35676 Sludge collector flight |
| 12/02/1997 | US5693263 Sparger for producing gas bubbles in a liquid |
| 12/02/1997 | US5693232 Rotating chamber with three outlets: one for red blood cells, one for plasma and the third for platelets |
| 12/02/1997 | US5693221 Cyclonic liquid-separating unit |