| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 12/02/1992 | EP0515918A1 Drainable sedimentation vessel and method for draining the same |
| 12/02/1992 | EP0515570A1 Device for aerobic purification of waste water. |
| 12/02/1992 | EP0270592B1 Manipulating particulate matter |
| 12/01/1992 | US5167841 Navigable channels or water retention ponds |
| 12/01/1992 | US5167839 Fluid coolant cleaning system for machine tool applications |
| 12/01/1992 | US5167833 Wastewater filtration |
| 12/01/1992 | US5167813 Apparatus for producing a functionally gradient material |
| 11/29/1992 | CA2069527A1 Method for removing solids from systems containing water-based paints |
| 11/26/1992 | WO1992020627A1 Liquid treatment |
| 11/25/1992 | EP0514543A1 Sewage purification apparatus |
| 11/25/1992 | CN2122673U Sidewise flow sloping palte sink-float solid-liquid separator |
| 11/24/1992 | US5165522 Collector flight attachment link for collector apparatus |
| 11/19/1992 | EP0513944A2 Device for the purification of recycle liquids |
| 11/19/1992 | EP0513809A2 Method for treating cooling fluids and/or lubricants used in rolling mill installations and device therefor |
| 11/19/1992 | EP0513352A1 Method of cleaning soil water |
| 11/18/1992 | CN2121984U Rhombus slop pipe chute and combined device for water treatment |
| 11/17/1992 | US5164094 Ultrasonic energy for precipitation, flocculation, coagulation |
| 11/12/1992 | DE4114865A1 Biological treatment reactor - has injector formed at entry to pptn. tube section for removal of suspended matter without blockage |
| 11/11/1992 | EP0512665A1 Method for detackification of paint spray operation wastes |
| 11/11/1992 | EP0512157A1 Separator |
| 11/11/1992 | CN1018997B Process for producing basic aluminium chlorosulphate |
| 11/10/1992 | US5161954 De-sludging systems |
| 11/04/1992 | CN2120612U Antomatic water drainage device |
| 11/04/1992 | CN2120611U Scraper in sewage settling tank |
| 11/03/1992 | US5160611 Apparatus for aerating water |
| 11/03/1992 | US5160606 Gray water recovery system with ozone treatment |
| 11/03/1992 | US5160443 Filter loop pump, flow control valve, centrifuge, holding tank, suction T-joint; hazardous wastes; truck houses |
| 11/03/1992 | US5160439 System for controlling coagulant treatment based on monitoring of plural parameters |
| 11/03/1992 | US5160041 Coagulation reaction tank |
| 11/03/1992 | CA2058406A1 Method for detackification of paint spray operation wastes |
| 10/29/1992 | WO1992018429A1 System for separating biological sludge from purified water |
| 10/29/1992 | WO1992018062A1 Separator for liquid/solid mixtures |
| 10/28/1992 | CN1065644A Apparatus for purifying sewage |
| 10/28/1992 | CN1065643A Method for purifying sewage |
| 10/27/1992 | US5158678 Water clarification method and apparatus |
| 10/22/1992 | DE4112487A1 Device for removal of sludge from e.g. activated sludge tanks - has perforated inner suction pipe moving in outer pipe which is in one or more parts and opens and closes openings in inner pipe in set sequence |
| 10/21/1992 | CN1065409A Method and apparatus for thickening particle suspensisons |
| 10/20/1992 | US5156751 Three stage centrifuge and method for separating water and solids from petroleum products |
| 10/15/1992 | WO1992017260A1 Material treatment apparatus |
| 10/15/1992 | DE4112199A1 Water testing for river and sea-water to determine pollution - using vessel with vertical temp. gradients to flock floating and pptd. matter in on-site laboratory |
| 10/14/1992 | EP0508680A1 Method and apparatus for sludge collection |
| 10/14/1992 | EP0508047A1 Purifier for waste water |
| 10/14/1992 | EP0508024A1 Process for the treatment of effluents and installation for carrying out the process |
| 10/14/1992 | EP0508023A1 Process for the treatment of effluents and installation for carrying out the process |
| 10/14/1992 | CN2118572U Mud collecting type same direction flow separator |
| 10/14/1992 | CN1018629B High-molecular cpd. coagulant and prepn thereof |
| 10/13/1992 | WO1992018061A1 Separator for liquid/solid mixtures |
| 10/13/1992 | US5154584 Pump for filtration systems |
| 10/13/1992 | CA2107904A1 Separator for liquid/solid mixtures |
| 10/13/1992 | CA2107901A1 Separator for liquid/solid mixtures |
| 10/07/1992 | EP0507057A1 Process for removing floating sludge from sedimentation and thickening basins |
| 10/01/1992 | WO1992016279A1 A method of separating particles from a base liquid, and a device for performing the method |
| 09/30/1992 | EP0506639A1 A method and apparatus for thickening fine particle suspensions |
| 09/30/1992 | EP0505734A2 Separator for the purification of waste waters contaminated with floating and suspended matters |
| 09/29/1992 | US5151177 Method and apparatus for dissolved air flotation with aeration |
| 09/29/1992 | CA1308036C Modular settling plate |
| 09/29/1992 | CA1308035C Floating decanter |
| 09/24/1992 | DE4108896A1 Circular vessel for sepg. light and/or heavy impurities from water - with scrapers which remove impurities from conical floor and roof which are loosely mounted and pressed against floor or roof by springs or by gravity |
| 09/23/1992 | EP0504203A1 Method and apparatus for effecting gas-liquid contact. |
| 09/22/1992 | US5149423 Apparatus for the purification of waste water with swivelling mixing container |
| 09/22/1992 | US5149400 Polymeric basic aluminum silicate-sulphate |
| 09/22/1992 | US5149057 Tape drive with self-expanding coils for sludge collector |
| 09/22/1992 | CA2062226A1 Liquid clarification by effecting cohesion of soilds |
| 09/17/1992 | WO1992015757A1 Fluent mixture separation |
| 09/17/1992 | DE4108216A1 Separator for use in waste water - has directly separable floating and/or sinking components in settlement pond |
| 09/17/1992 | DE4108214A1 Separator for floating and suspended matter in waste water - with device to form laminar flow to prevent turbulence |
| 09/15/1992 | US5147562 Acoustophoresis method and apparatus |
| 09/15/1992 | US5147556 Thickener |
| 09/15/1992 | US5147045 Particulate separations by electrostatic coalescence |
| 09/10/1992 | DE4207077A1 Compact clarification plant for complete biological purificn. of waste water - has horizontal gap above line along which post-clarification chamber base meets second partition |
| 09/03/1992 | DE4106138A1 Treating water contg. particles of concrete - by pumping water collecting tank via flocculant dosing point into settling tank having overflow weir and conical floor with outlet valve |
| 09/02/1992 | CN1064032A Method for water-saving ecologic collection, transport and deposition of slag and flyash from coal-fired thermal power stations with simultaneous utilization of physical and chemical properties |
| 09/01/1992 | US5143625 Method and apparatus for clarifying liquid using a pulsating sludge bed and part of concentrated sludge |
| 09/01/1992 | US5143623 Precipitation |
| 08/27/1992 | DE4105568A1 Filteranordnung fuer fluessigkeiten mit schwebeteilchen Filter arrangement for liquids with suspended particles |
| 08/26/1992 | EP0499891A1 Blood filtering system |
| 08/26/1992 | CN2113824U Slurry concentrating chamber |
| 08/26/1992 | CN1017986B Process for preparation of inorganic coagulant |
| 08/25/1992 | CA1306727C Plasma collection set and method |
| 08/20/1992 | DE4125419A1 Rain overflow and associated basin - is for rainwater treatment and discharge plant and incorporates sieve devices and has input from canalisation |
| 08/20/1992 | CA2061225A1 Blood filtering system |
| 08/19/1992 | EP0498858A1 Nested-cone separator |
| 08/19/1992 | CN1017870B Method and apparatus for make use of precipitating fine sand to treat water |
| 08/18/1992 | US5139657 Multiple-gas-phase settling tank |
| 08/18/1992 | US5139655 Integrated system marine sanitation device |
| 08/13/1992 | DE4102695A1 Centrifuge for sepg. fine solid particles from waste water - has weir dividing collecting vessel into first chamber which surrounds feed pump inlet and second larger chamber lying below centrifuge outlet |
| 08/11/1992 | US5137643 Continuous soap skimmer |
| 08/11/1992 | CA1306200C Funnel stock/sauce separator |
| 08/08/1992 | WO1992013804A1 Continuous soap skimmer |
| 08/06/1992 | WO1992012936A1 Waste water biological treatment device |
| 08/06/1992 | DE4103176A1 Continuously dewatering sludges - comprises collecting solids on vertical centrifuge bowl while liq. passes over rim and periodically opening or folding bowl to release solids |
| 08/06/1992 | DE4102839A1 Emulsion separator for separation of aqueous oil dispersion from machines - has sound vibration energy cleaned sieve screen |
| 08/05/1992 | EP0497295A2 Liquid separator |
| 08/05/1992 | EP0497294A2 Toroidal chamber separator |
| 08/05/1992 | EP0496916A1 Method for treating deposits |
| 08/05/1992 | EP0496915A1 Method for treating deposits |
| 08/05/1992 | CN2111792U Outer filtration centrifugal dewatering machine |
| 08/04/1992 | US5135875 Mixture of zinc salt, alcohol, and glycol |
| 08/04/1992 | US5135662 Tube clarifier method for monitoring and/or controlling clarification processes |
| 08/04/1992 | US5135364 Pump mounting apparatus for filtration system |