| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 08/01/1992 | WO1992013806A1 Improvements in fermentation apparatus |
| 07/29/1992 | CN2111288U Aeration and precipitating integrated water purifying device |
| 07/28/1992 | US5133874 Removal of humate from bayer alumina liquors |
| 07/28/1992 | US5133870 Treatment of aqueous dispersions |
| 07/28/1992 | US5133846 Silver recovery device |
| 07/26/1992 | WO1992012782A1 Process for separation of two solid components |
| 07/26/1992 | CA2101256A1 Process for separation of two solid components |
| 07/23/1992 | DE4101332A1 Device for cleaning filter layer in waste water clarifier |
| 07/23/1992 | DE4101173A1 Sepg. floating and sinking impurities from waste water |
| 07/22/1992 | EP0495403A1 Apparatus for waste-water cleaning |
| 07/22/1992 | EP0495386A1 Process for separating floating and settleable materials from waste water |
| 07/21/1992 | US5132010 In-line oil-separating equipment with meandering flow |
| 07/21/1992 | CA1305569C Method and apparatus for use in separating solids from liquids |
| 07/21/1992 | CA1305311C Apparatus for decontaminating pcb-contaminated dielectric fluids |
| 07/16/1992 | DE4111936C1 Rapidly installed sewage treatment plant - has concrete foundation, from which supports extend vertically to roof over plant cylindrical chambers with supply line |
| 07/16/1992 | DE4100983A1 Vorrichtung zur biologischen reinigung von abwasser Device for biological purification of waste water |
| 07/16/1992 | DE4100823A1 Waste disposal food prepn. and processing - by mixing water, solid waste and dishwasher water, sedimenting and emulsification sepg. |
| 07/16/1992 | DE4100822A1 Method of sepg. floating and sinking impurities from waste water - using conical inlet duct to slow down flow and allow thermal and gravitational sepn. to take place before water enters main spiral sedimentation channel |
| 07/15/1992 | EP0494444A1 Process for waste water purification |
| 07/14/1992 | US5130030 Method and an automatic device for the sharp separation and removal of layers of fluids from a container by way of the container headspace and for the automatic cleaning of the container |
| 07/14/1992 | US5130028 Method of treating waste water for organic contaminants with water dispersible organically modified smectite clay compositions |
| 07/09/1992 | DE4100309A1 Cleaning unit for long basins or mine channels - comprises floating sludge tank joined to pump assembly by flexible linkage, for sludge removal at fixed intervals |
| 07/08/1992 | EP0493413A1 Device for taking up fluids |
| 07/01/1992 | EP0492188A2 Polyelectrolyte complexes |
| 07/01/1992 | EP0349629B1 Side-chains containing vinylic mono-and copolymers |
| 06/28/1992 | CA2033217A1 Use of two or more nested apertured endless belts with inverted arch bottom flights and generally horizontal top flights to recover bitumen and minerals |
| 06/24/1992 | CN2107943U High efficiency solid-liquid settlement separating and concentrating device |
| 06/23/1992 | US5124049 Liquid purification methods |
| 06/23/1992 | US5124035 Apparatus for treatment of effluent |
| 06/23/1992 | US5124034 Liquid purification systems |
| 06/23/1992 | US5124030 Solution separating apparatus |
| 06/17/1992 | DE4118525C1 Appts. for cleansing contaminated surfaces using liq. - includes cylindrical housing with high pressure injection nozzle for feed liq., overflow, concentrically arranged sepg. walls and sieve |
| 06/17/1992 | DE4040007A1 Dismantlable self-service car wash unit - with integral wash water cleaning and recycling system |
| 06/17/1992 | DE4039592A1 Treating mixt. of lacquer sludge and water - in collection vessel below paint spray cabin |
| 06/17/1992 | CN2107304U Inverted y type compartment reactor |
| 06/16/1992 | US5122285 Pool cleaning method and apparatus |
| 06/16/1992 | US5122263 Continuously and automatically functioning device for the drainage of sludge, especially of sewage sludge |
| 06/11/1992 | WO1992009369A1 Apparatus for the reclamation of aggregate from waste concrete |
| 06/10/1992 | CN2106646U Oblique waved plastic chute |
| 06/10/1992 | CN1061765A Method and apparatus for seawater clearing |
| 06/09/1992 | US5120522 Process for preparing basic aluminum compounds |
| 06/09/1992 | US5120436 Liquid clarification by effecting cohesion of solids |
| 06/03/1992 | EP0488651A1 Electrostatic separating apparatus |
| 06/03/1992 | EP0385972B1 Method for improving the utilization of polyelectrolytes in dewatering aqueous suspensions |
| 06/02/1992 | US5118411 Filtration system for liquids with suspended particles |
| 06/02/1992 | US5118408 Reducing the water and solids contents of bitumen froth moving through the launder of a spontaneous flotation vessel |
| 06/02/1992 | US5118344 From silver halide emulsion |
| 06/02/1992 | CA1302300C Filter apparatus |
| 05/26/1992 | US5116516 Deflector plates; low energy; sewage treatment |
| 05/26/1992 | US5116492 Apparatus for clarification of industrial sewage |
| 05/26/1992 | US5116443 Clarifier apparatus and methods with 3D arrays |
| 05/21/1992 | DE4036192A1 Suction appts. for floating matter removal in flotation tank - has suction device comprising suction hood having peripheral vertical edge completely covering tank apart from peripheral horizontal strip |
| 05/20/1992 | EP0486480A2 Centrifugal processing apparatus |
| 05/20/1992 | EP0486376A1 Device for the defoaming of a tank |
| 05/19/1992 | US5114578 Settling apparatus |
| 05/19/1992 | US5114568 Reclamation system for contaminated material |
| 05/15/1992 | WO1992008742A1 N-halochitosans, their preparation and uses |
| 05/14/1992 | WO1992007642A1 Oil/sludge separation |
| 05/13/1992 | EP0336933B1 Filter for liquids |
| 05/13/1992 | CA2055200A1 An installation for skimming a vat |
| 05/12/1992 | US5112500 Anionic Polymer and Cationic Polymer Flocculants |
| 05/07/1992 | DE4034636C1 Washing and dispensing plant for loose material batch feed - has tube with dispensing scraper chain conveyor in front of feeder |
| 05/06/1992 | EP0483524A1 Water clarification method and apparatus |
| 05/06/1992 | EP0467887A4 Clarification process |
| 05/06/1992 | EP0400129A4 Polyelectrolytes modified by reaction with anhydride group containing copolymers and their use as flocculents |
| 05/06/1992 | EP0335944B1 Manipulating means |
| 05/06/1992 | CA2052184A1 Grit removal devices and methods |
| 05/05/1992 | US5110483 Separation of particles adsorbed on carrier material |
| 05/05/1992 | US5110459 Septage anaerobic treatment batch processing |
| 04/29/1992 | EP0364453B1 Method and apparatus for purification of liquid mediums, especially waste water |
| 04/28/1992 | US5108609 Treatment of liquids |
| 04/28/1992 | CA1299551C Particle separation process |
| 04/22/1992 | EP0481174A2 Recycling of solvents and coagulates and sludges of colouring agents and lacquers |
| 04/21/1992 | US5106494 Decanter assembly |
| 04/14/1992 | US5104542 Dual chamber sewage treatment system |
| 04/14/1992 | US5104528 Floating decanter |
| 04/14/1992 | US5104526 Centrifugation system having an interface detection system |
| 04/14/1992 | CA1298821C Device for separating fine particles of solid matter from waste fluid |
| 04/14/1992 | CA1298820C Centifuge for two-bimensional centrifugation |
| 04/14/1992 | CA1298795C Water filtering system |
| 04/08/1992 | EP0479569A2 Tube clarifier method for monitoring and/or controlling clarification processes |
| 04/07/1992 | US5101849 Baffle for a sewage tank and method of installation |
| 04/05/1992 | CA2052529A1 Tube clarifier method for monitoring and/or controlling clarification processes |
| 04/02/1992 | WO1992004959A1 Arrangement for purification of waste water |
| 04/02/1992 | DE4103271C1 Surface discharge arrangement for sepn. of substances in liq. - comprises float with slots for inlet of substance or liq., discharge body and perforated tube |
| 04/01/1992 | EP0228396B2 Arrangement for the flocculation of flocculable substances, particularly for the purification of effluents from deinking installations for used paper processing |
| 03/26/1992 | DE4029603A1 Disposal of fluids mixed with solids - involves separation of floating and sinking solids before pumping |
| 03/25/1992 | EP0476509A2 A method of treating waste water for organic contaminants with water dispersible organically modified smectite clay compositions |
| 03/25/1992 | EP0475985A1 Method of and apparatus for separating heavy impurities from fiber suspensions in connection with pumping. |
| 03/25/1992 | EP0194271B1 Closed hemapheresis system |
| 03/19/1992 | WO1992004283A1 Improved filtration technique |
| 03/18/1992 | EP0475467A1 Swirl chamber separator |
| 03/18/1992 | EP0475289A1 Method of recovering nickel |
| 03/18/1992 | EP0475115A1 Method and apparatus for liquid components separation |
| 03/18/1992 | CN2098957U Mud scraper in pre-settling tank |
| 03/18/1992 | CN1015884B Process for the treatment and purification of water by the flocculation of suspended particles in a fluidized bed |
| 03/18/1992 | CA2050791A1 Method of treating waste water for organic contaminants with organically modified smectite clay compositions |
| 03/14/1992 | CA2051016A1 Nickel recovery process |
| 03/12/1992 | DE4028148A1 Outlet device for sedimentation tanks in sewage treatment works - perforated pipes with end support plates are attached to openings in tank wall by means of captive bolts held in rails fitted in tank wall |
| 03/12/1992 | DE4027879A1 Impurity sepn. device for contaminated water - comprises 2nd set of upper inclined collecting plates in flocculation and sedimentation tank for smooth sediment removal, for high density |