| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 04/07/1993 | EP0535715A2 Separator |
| 04/07/1993 | EP0535197A1 System for separating biological sludge from purified water. |
| 04/07/1993 | EP0527751A4 Modular clarifier with integral flocculator |
| 04/06/1993 | US5200094 Method of recovery of printing ink wastes using elevated temperature, pressure and shear |
| 04/06/1993 | US5200079 Circular clarifier including improved skimmer clarifier |
| 04/06/1993 | CA1315704C Apparatus for removing grit |
| 04/06/1993 | CA1315703C Apparatus for the decantation treatment of liquid containing therein suspended material |
| 04/01/1993 | DE4138612C1 Appts. for continuously stirring and cleansing liq. contg. solids - includes sepn. pump with centrifugal wheel, cylindrical pump chamber with 2 or more outlets, etc. |
| 03/31/1993 | EP0533728A1 Use of double-layer hydroxide compounds for coagulation |
| 03/30/1993 | US5198125 Method and apparatus for sludge collection |
| 03/30/1993 | CA1315465C Polymers of oxyalkylated unsaturated quaternary ammonium salts, their preparation and their use |
| 03/24/1993 | EP0532951A1 Method for operating a separator for heavy and light materials and corresponding separator |
| 03/24/1993 | EP0532494A1 Improved water clarifying apparatus. |
| 03/18/1993 | WO1993005187A1 Method of separating oleophilic-hydrophobic material from wash water |
| 03/18/1993 | WO1993004784A1 Improved apparatus and method for deinking waste paper pulp |
| 03/18/1993 | WO1993001321A3 Process and device for separating metallic phases from other phases |
| 03/18/1993 | DE4130515A1 Self-cleaning of compact sedimentation separators - sedimentation pipes, plates etc. by bodies made of e.g. rubber which are moved back and forwards by mechanical or hydraulic means |
| 03/18/1993 | CA2117071A1 Improved apparatus and method for deinking waste paper pulp |
| 03/17/1993 | EP0532484A1 Transporting element of a reciprocable scraper for moving sludge in settling basins and similar objects at water purification plants |
| 03/16/1993 | US5194155 Concentric dual drive system for a flocculating clarifier |
| 03/11/1993 | DE4129748A1 Removing floating sludge from e.g. sedimentation tanks |
| 03/10/1993 | CN1069668A Appartus for separating suspending paraticles by means of supersonic effect |
| 03/10/1993 | CA2077478A1 Method for evacuating floating sludge from settling tanks and thickener tanks |
| 03/09/1993 | US5192450 Separation of particles in a liquid with sound waves |
| 03/09/1993 | US5192441 Process and installation for biological treatment, e.g. by nitrification and/or denitrification, of an effluent including nitrated pollution |
| 03/03/1993 | EP0529464A2 Separator for fat and course dirt |
| 03/03/1993 | EP0529149A1 Flotation plant with vertical lamellae |
| 03/03/1993 | CA2076473A1 Method for adjusting the height level of foam surface in flotation machines |
| 02/24/1993 | EP0528067A1 Sedimentation centrifuge |
| 02/24/1993 | EP0527751A1 Modular clarifier with integral flocculator |
| 02/23/1993 | WO1993004002A1 Scum removing device |
| 02/23/1993 | US5189111 Aminoalkylated side-chains-containing vinylic copolymers |
| 02/23/1993 | US5188729 Sludge collection apparatus for a water clarifier |
| 02/23/1993 | CA2094514A1 Scum removal apparatus |
| 02/18/1993 | WO1993002762A1 Waste water clarification device |
| 02/17/1993 | EP0527465A1 Sludge dewatering system |
| 02/17/1993 | CN2127033Y Mud scraper from centre axle sludge |
| 02/16/1993 | US5186821 Wastewater treatment process with cooperating velocity equalization, aeration and decanting means |
| 02/14/1993 | CA2072690A1 Transporting element of a reciprocable scraper for moving sludge in settling basins and similar objects at water purification plants |
| 02/10/1993 | EP0526954A2 Method of refining glyceride oils |
| 02/10/1993 | EP0526448A1 Serpent sediment-sluicing system. |
| 02/10/1993 | CN1068839A Paint detackifying and flocculating composition and process |
| 02/09/1993 | US5185083 Separation of solids from aqueous suspensions using modified amine functional polymers |
| 02/04/1993 | WO1993002147A1 Paint detackifying and flocculating composition and process |
| 02/04/1993 | WO1993001958A1 Method of and apparatus for washing a vehicle and separating resulting sludge from a washing liquid |
| 02/04/1993 | WO1993001878A1 Fluid coolant cleaning system for machine tool applications |
| 02/04/1993 | DE4220679A1 Wall coping trolley running surface |
| 02/04/1993 | DE4125453A1 Device for collecting and cleaning rain water - solid impurities are sepd. by reducing flow rate and/or coarse filtration in inlet section to flow equalisation channel |
| 02/04/1993 | CA2110905A1 Paint detackifying and flocculating composition and process |
| 02/03/1993 | EP0526339A1 Procedure for paint detackification of waterdilutable as well as organic solvent based paints |
| 02/03/1993 | EP0525505A1 Container for dewatering |
| 02/03/1993 | EP0525348A1 Sandcollector for separating and removing sand from a gully, particularly from a wastewater purification plant |
| 02/02/1993 | US5183562 Apparatus for coagulating treatment |
| 01/26/1993 | US5182029 Waste from printed circuit manufacture |
| 01/26/1993 | US5181987 Device and process for precipitating polymers |
| 01/21/1993 | WO1993000975A1 Apparatus for treatment of a liquid |
| 01/21/1993 | WO1993000937A1 Blood washing device |
| 01/21/1993 | CA2113100A1 Apparatus for treatment of a liquid |
| 01/20/1993 | EP0524039A1 Process and apparatus for water treatment |
| 01/20/1993 | EP0523498A1 Sewage treatment apparatus |
| 01/20/1993 | EP0523454A1 Apparatus for physical treatment of liquids |
| 01/14/1993 | DE4124212C1 Treatment of contaminated ground, sediments, slurries etc. - in a plant where wash water is sprayed into it from nozzles and then filtered |
| 01/14/1993 | DE4122561A1 Filter for ultrasonic cleaning bath - has filter cleaned by oscillating nozzle and canals inserted in some of its perforations to prevent return flow of particles. |
| 01/14/1993 | DE4122172A1 Regenerating cleaning soln. used for cleaning industrial parts - using gravity separator to remove oil, grease and dirt in continuous three=stage sepn. |
| 01/14/1993 | DE4121392A1 Long sand collector - esp. for sand removal from waste water feed to clarification plant |
| 01/13/1993 | EP0522823A1 Apparatus for treatment of a liquid |
| 01/13/1993 | EP0521888A1 Method and apparatus for removing grit from sewage. |
| 01/13/1993 | CN1067871A Surface water treating method and device |
| 01/12/1993 | WO1993001321A2 Process and device for separating metallic phases from other phases |
| 01/12/1993 | US5178824 Apparatus for grinding nuclear fuel pellets in presence of liquid, trough below grinder, trough outlet, vessel with declivitous sides and bottom outlet, collection chamber, obturating means, sensing means, recirculation circuit, pump |
| 01/12/1993 | US5178774 Dissolving and coagulation of diallyldimethylammonium chloride polymer |
| 01/12/1993 | US5178773 High efficiency filter to remove suspended solids from aqueous media |
| 01/12/1993 | US5178754 Grease and solids removal system |
| 01/12/1993 | CA2091457A1 Method to separate metallic phases from other phases containing same and device to carry out the method |
| 01/07/1993 | WO1993000489A1 Elongated sand catcher for separating and removing sand from flume channels, in particular of sewage treatment plants |
| 01/07/1993 | EP0521733A1 Serum:plasma separator and tube containing the same |
| 01/07/1993 | EP0521583A1 Method for manufacturing separators |
| 01/07/1993 | EP0521406A1 Device for the separation of floating and settling matters from waste water contaminated with these matters |
| 01/07/1993 | DE4121932A1 Dental treatment waste water separator - has servo valve opening control to prevent build=up on intermediate store wall |
| 01/07/1993 | DE4121931A1 Separator for dental treatment waste outflow - has fresh water supply to rinse air separating cyclone with safeguard to prevent soiled water entering fresh water supply |
| 01/07/1993 | DE4121635A1 Arrangement for locking adjustable pitch propeller blades - suitable for water treatment and industrial applications |
| 01/05/1993 | US5176838 Sand pan |
| 01/05/1993 | US5176823 Odor control system for wastewater settling tank with gas velocity test probes |
| 12/30/1992 | EP0520057A1 Waste water biological treatment device |
| 12/29/1992 | US5174897 Constructed wetlands to control nonpoint source pollution |
| 12/29/1992 | CA1312018C Fuel filter assembly with heater |
| 12/23/1992 | WO1992022370A1 Method and apparatus of discharging sludge from the bottom of a sedimentation basin |
| 12/23/1992 | EP0518923A1 Turbidity measurement |
| 12/23/1992 | EP0518912A1 Clearing or sedimentation tank. |
| 12/23/1992 | EP0301077B1 Plasma collection set and method |
| 12/23/1992 | CN2125583U Composite waste water treating device |
| 12/23/1992 | CN2125440U Transverse changing flow inclined plate sedimentation pond |
| 12/22/1992 | US5173208 Flocculating agent of polyoxyethylene glycol, a carrier of a mixture of a glycol and glycerine and a suspension agent of a polymeric fatty acid ester and a dispersant |
| 12/22/1992 | US5173195 Includes self-supporting frame for retaining a plurality of impingement plates |
| 12/18/1992 | CA2058745A1 Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater |
| 12/17/1992 | DE4137212C1 Settling tank with short treatment path - comprises rectangular tank with inlet system along one sidewall, and outlet system consisting of series of slotted pipes under water surface |
| 12/15/1992 | US5171432 Liquid and particle separator |
| 12/10/1992 | WO1992021444A1 Batch process and apparatus |
| 12/08/1992 | US5169004 Method of and apparatus for treating building rubble |
| 12/02/1992 | EP0516326A1 Improved method for removing solids from systems containing water-based paints |