| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 06/09/1999 | EP0866774B1 Single-tank sewage treatment plant |
| 06/09/1999 | EP0861309A4 Method for extracting oil from oil-contaminated soil |
| 06/09/1999 | CN2322963Y Sewage treatment apparatus |
| 06/09/1999 | CN2322672Y Vertical pressure fluid cleaner |
| 06/08/1999 | US5910243 Displacement device |
| 06/08/1999 | CA2140371C Polymeric aluminium silicate-sulphate and process and apparatus for producing same |
| 06/03/1999 | WO1999026887A1 Process and apparatus for electrocoagulative treatment of industrial waste water |
| 06/03/1999 | WO1999026709A1 Lamellar separator |
| 06/03/1999 | WO1999026678A1 Systems and methods for obtaining a uniform targeted volume of concentrated red blood cells |
| 06/02/1999 | EP0859656A4 Centrifugal separator with improved quiescent collection chamber |
| 06/02/1999 | DE19753085A1 Disposal plant for industrial cutting fluids, capable of dealing with foam |
| 06/02/1999 | CN2321511Y High-efficient energy-saving water purifier |
| 06/01/1999 | US5908604 Using pressure tank; supplying microwaves |
| 05/27/1999 | WO1999025658A1 Clarifier with sludge dewatering |
| 05/27/1999 | WO1999025497A1 System for processing oil refinery waste |
| 05/27/1999 | WO1999025477A1 Underwater trap for alluvial minerals and variants |
| 05/27/1999 | DE19750679A1 Freeze dried microcapsules |
| 05/27/1999 | CA2315925A1 Clarifier with sludge dewatering |
| 05/26/1999 | EP0917501A1 Method for isolating ultrafine and fine particles and resulting particles |
| 05/25/1999 | US5906724 Apparatus for separation of nucleated blood cells from a blood sample |
| 05/25/1999 | US5906478 Absorbing belt pumping device |
| 05/19/1999 | CN1216969A Use of hydroxamated polymers to alter Bayer process scale |
| 05/18/1999 | US5904856 Process for the preparation of aluminum salt solutions |
| 05/18/1999 | US5904855 Closed chemically enhanced treatment system |
| 05/18/1999 | US5904850 Multicompartment device for settling particles |
| 05/18/1999 | US5904844 Fuel filter element |
| 05/14/1999 | WO1999022871A1 Controlled production and recovery of fine-coal agglomerates |
| 05/12/1999 | EP0915103A1 Stable aqueous dispersions based on hydrosoluble polymers containing a cationic dispersing agent with hydrophobic groups |
| 05/12/1999 | EP0914212A1 A centrifuge apparatus |
| 05/12/1999 | EP0914184A1 Apparatus and method for manipulating particles in a liquid medium by ultrasonic waves |
| 05/12/1999 | DE19847978A1 Waste water treatment assembly separating sludge and oil from industrial effluent |
| 05/12/1999 | CN2318216Y High-efficient sedimentation tank |
| 05/12/1999 | CN1216517A Process for the preparation of water purification solutions containing ferric iron and the use of the product as of obtained |
| 05/11/1999 | US5902489 Particle handling method by acoustic radiation force and apparatus therefore |
| 05/11/1999 | US5902487 Plant for conditioning and dewatering suspension having on-line density and flow rate measurement means for automatic dosing of conditioner |
| 05/11/1999 | CA2142582C Sludge collection apparatus and method |
| 05/11/1999 | CA2100380C Unitary clarifier baffle and integrated baffle system |
| 05/06/1999 | WO1999022078A1 Method and apparatus for separating floating pollutants |
| 05/06/1999 | WO1999021946A1 Regeneration of acid reaction lubricant residues |
| 05/06/1999 | EP0912639A1 Derivatized rhodamine dye and its copolymers |
| 05/06/1999 | EP0912222A1 System for sucking sludge at the bottom of a sedimentation pond |
| 05/06/1999 | DE19753966A1 Clarification of fluids containing floating particles |
| 05/06/1999 | DE19747681A1 Regenerierung saurer Reaktionsschmiermittelreste Regeneration acid reaction lubricant residues |
| 05/05/1999 | CN1216013A Method and apparatus for supplying and separating recovering liquid coolant for cutting machines and grinding machines |
| 05/05/1999 | CN1215621A Broad-spectrum quick low cost clarification process |
| 05/04/1999 | US5900156 Ultrasonic loading control for centrifuge basket |
| 05/04/1999 | US5900149 Sedimenter |
| 05/04/1999 | US5900137 Apparatus and method for separating components in well fluids |
| 05/04/1999 | US5900116 Zeolite crystalloid coagulant is added to water containing the solid matter, a source of multivalent cations, and a cationic acrylamide polymer. |
| 04/29/1999 | WO1999020873A1 Sand trap |
| 04/29/1999 | WO1999020667A1 Water-soluble polymer, process for the production of the same, and use thereof as polymeric coagulant |
| 04/29/1999 | WO1999020288A1 Precipitation of growth-factor-enriched fibrinogen concentrate from platelet rich plasma |
| 04/29/1999 | DE19747535A1 Assembly recovers metal swarf from liquid using back-pressure on filter |
| 04/29/1999 | CA2306629A1 Precipitation of growth-factor-enriched fibrinogen concentrate from platelet rich plasma |
| 04/28/1999 | EP0910475A1 Pulp decontamination apparatus and method of use |
| 04/28/1999 | EP0910449A1 Process for recovering components of a float material from waste water treatment system |
| 04/28/1999 | EP0603379B1 Submerged scraper for round settling pools |
| 04/28/1999 | CN2316014Y Apparatus for discharging supernatant from settled mixture |
| 04/27/1999 | US5897810 A coagulant comprises a flocculation forming coagulation cores of gypsum having flocculation site for capturing grains of waste water, a porous calcium carbonate carriers captured in first flocculation sites, having second flocculation sites |
| 04/27/1999 | US5897786 Method and apparatus for determining thickness of a charge wall being formed in a centrifugal machine |
| 04/27/1999 | US5897772 Draft tubes; froth floation |
| 04/22/1999 | WO1999019261A1 Method for physico-chemical treatment of water and plant for implementing same |
| 04/22/1999 | WO1999019040A1 Device for continuously skimming off a floating toplayer |
| 04/21/1999 | CN1214702A Method of making polymer containing hydroxamate functional groups |
| 04/20/1999 | US5894858 Device for shutting off the feed or discharge pipe of a mobility separator |
| 04/17/1999 | CA2250552A1 Scum removal system for sewage clarification tank |
| 04/15/1999 | WO1999017860A1 Shaft mounted gear box |
| 04/14/1999 | CN2313921Y High peroformance water treatment apparatus for waterworks |
| 04/14/1999 | CN2313920Y Container style water purifying supplier |
| 04/13/1999 | US5893970 Self-diluting feedwell for thickener dilution |
| 04/08/1999 | WO1999016708A1 Colloidal borosilicates and their use in the production of paper |
| 04/08/1999 | WO1999016527A1 Fluid filtration, recirculation and delivery apparatus and method |
| 04/07/1999 | EP0906144A1 Water treatment plant and set of modular equipment obtained by placing such plants in parallel |
| 04/07/1999 | EP0744984B1 Separation of a suspension into its component parts |
| 04/07/1999 | EP0662857B1 Systems and methods for reducing leukocytes in cellular products |
| 04/07/1999 | CN2312747Y O-type efficient settling bowl |
| 04/07/1999 | CN1212898A Processes for treatment of flue gas desulfurization waste water |
| 04/06/1999 | CA2070630C Method and apparatus for effecting gas-liquid contact |
| 03/31/1999 | CN1212713A Method of producing water-soluble condensates and addition products containing amino groups, and use of said condensates and addition products |
| 03/30/1999 | CA2174626C Centrifugal separator and method |
| 03/24/1999 | EP0903324A2 Process and installation for the treatment of water |
| 03/24/1999 | EP0902761A1 Clarification plant for water purification |
| 03/24/1999 | CN2311300Y Fry residue separator for deep fryer |
| 03/24/1999 | CN1211545A Framed corrugated board coagulator |
| 03/23/1999 | US5886095 Crosslinking a polyamino-ether, which has been prepared from a glycol dichlorohydrin or polyglycol dicholrohydrin and a polyamine and still contains free epichorohydrin groups, in an alkaline ph under the influence of heating |
| 03/23/1999 | US5885528 Automated immuno-assay systems where the sample and any reagents may be mixed, centrifuged and microscopically viewed while located in the sample holding disk |
| 03/23/1999 | US5885458 Wear strip assembly for use in a waste water treatment facility |
| 03/16/1999 | US5882529 Processing a liquid having suspended solid particles to produce a sludge and a clarified liquid |
| 03/16/1999 | US5882525 Method for treating suspended solids |
| 03/16/1999 | US5882509 Chip-washing arrangement |
| 03/16/1999 | CA2077181C Temperature controlled grease trap |
| 03/11/1999 | WO1999011841A1 Separating member for separating the tank bottom part from the rest of the tank |
| 03/11/1999 | WO1999011354A1 Upflow sludge blanket process for treating drinking water |
| 03/11/1999 | WO1999011353A1 Upflow sludge blanket filtering plant for treating drinking water |
| 03/11/1999 | CA2301632A1 Separating member for separating the tank bottom part from the rest of the tank |
| 03/10/1999 | EP0901020A2 Apparatus and device for determining the level of sludge in a settling tank |
| 03/10/1999 | EP0900179A1 Use of hydroxamated polymers to alter bayer process scale |
| 03/09/1999 | US5879651 Mixing basic compound of alkali metal with basic compound or halide of alkaline earth metal, sulfate ions, basic solution of aluminum chloride, cooking for time to produce desired product |
| 03/09/1999 | US5879550 Clip for the support of a clarifier and a dropline in an aerated wastewater treatment tank |
| 03/09/1999 | US5879464 Method and device for wet-processing substrates in a vessel |