Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 21 - Separation of suspended solid particles from liquids by sedimentation
Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338)
08/1981
08/11/1981US4283004 Vibration attenuation support assembly for a centrifugal liquid processing apparatus
08/04/1981US4282343 Poly-(alpha-alkoxy)acrylamide and poly-(alpha-alkoxy)acrylamide complexes
08/04/1981US4282103 Method for controlling flocculant addition to tar sand tailings
08/04/1981US4282093 Apparatus for detecting coagulation effect
08/04/1981US4282016 Gas and failure particle separator system
07/1981
07/28/1981US4281186 Papermaking, sewage treatment
07/28/1981CA1105847A1 Separating apparatus for clarifying liquid
07/28/1981CA1105846A1 Process and apparatus for the separation of tar and ammonia liquor effluents from coke oven plants
07/28/1981CA1105845A1 Method and apparatus for separating solids from liquids
07/23/1981WO1981002030A1 Use of polyalkylene oxides for the separation of cellulose fibres
07/22/1981EP0032364A1 Use of polyalkylene oxides for the separation of cellulose fibres
07/21/1981CA1105638A1 Granular flocculants and their manufacture
07/14/1981US4278545 Stacks of corrugated, spaced plates
07/14/1981US4278541 Separator employing an annular vertical feedwell with associated concentric annular baffle plate and method of using same to separate solids from liquids
07/14/1981US4278365 Control system for controlling a plant including a mobile suction device for sucking suspendible material
07/14/1981CA1104946A1 Control device for dual flow clarifiers
07/14/1981CA1104906A1 Dewatering of mineral suspensions
07/07/1981US4277334 Oil and debris skimmer
07/07/1981US4277252 Mixing aqueous slurry with oil in plurality of zones
07/01/1981EP0031005A1 Process for preparing coherent hydrosoluble polymers
07/01/1981EP0030957A1 Centrifugal oil filter.
06/1981
06/30/1981US4276165 Sludge siphon collector with de-gasing header
06/30/1981US4276162 Flame resistant sump assembly
06/30/1981US4276094 Cleaning oil-contaminated vessels with α-emulsans
06/30/1981CA1103969A1 Method and apparatus for controllably recycling the solids content of the effluent from an asbestos- cement poducts forming plant
06/23/1981US4274963 Solids and liquid separating apparatus
06/23/1981US4274958 Flocculant distributor means for feedwell
06/16/1981US4273658 Thickener control process
06/16/1981US4273654 Separation device
06/16/1981US4272952 Plastic chain and tubular link pin
06/16/1981CA1103274A1 PREPARATION OF N-(AMINOMETHYL)-.alpha.,.beta.-ETHYLENICALLY UNSATURATED CARBOXAMIDES AND THEIR POLYMERS
06/11/1981WO1981001525A1 Method of solid-liquid separation and apparatus therefor
06/10/1981EP0030201A1 Impurities clarification reservoir for combustibles
06/09/1981US4272369 Liquid treatment apparatus
06/09/1981US4272297 Compositions for use with papermaking fillers
06/09/1981CA1102935A1 Hydro-carbonaceous pollution separation process in a hydro-organic environment
06/09/1981CA1102741A1 Coal slurry grain distribution adjustment prior to dehydration
06/02/1981US4271028 Process for purifying effluents containing proteins
06/02/1981US4271027 Sewage treatment system and process
06/02/1981US4270676 Feed distributors
05/1981
05/28/1981WO1981001372A1 Sludge robot
05/19/1981US4268394 Beach for the scum trough of a sewage settling tank or the like
05/19/1981CA1101599A1 Process for separating polyvinyl alcohol from its solution
05/19/1981CA1101210A1 Agglomeration of coal fines by aqueous emulsion of oil
05/14/1981WO1981001246A1 Pumpless flow system for a corrosive liquid
05/13/1981EP0028586A1 Device for separating sand and/or gravel from water fed by a dredging suction pump, or for separating other granulated material from a fluid flow
05/13/1981EP0028246A1 Controlled protein fractionation
05/12/1981US4267061 Process and separating and recovering solids and clear liquid phase from dispersions
05/12/1981US4267059 Auxiliary for improving retention, dewatering and working up, particularly in the manufacture of paper
05/12/1981US4267058 Comprising iron(iii)oxide and iron(iii)sulfate
05/05/1981US4265759 Device for separating a mixture
05/05/1981CA1100417A1 Apparatus for distributing solids under slug loading
05/05/1981CA1100383A1 Process for the preparation of a substantially homogeneous lime water solution
04/1981
04/30/1981WO1981001108A1 Lamellar separator
04/28/1981US4264454 Feeding upwardly into a widening chamber to generate vortices
04/28/1981CA1100056A1 Submerged settler for suspended solids
04/21/1981US4263137 Apparatus and method for the gravity settling of suspended solids
04/16/1981WO1981001007A1 Amphoteric water-in-oil self-inverting polymer emulsion
04/08/1981EP0026530A1 A centrifugal filter for cleaning lubricating oils, particularly for internal combustion engines
04/08/1981EP0026417A2 Centrifuge with system of bloodbag for the separation of blood components
04/08/1981EP0026185A1 Improvements to centrifugal separators
04/07/1981US4260488 Device for compacting and draining fluid sludges containing fibrous materials
04/07/1981US4259777 Rotary rake structure for a settling tank
04/07/1981CA1098842A1 Floc barrier
04/01/1981EP0026122A1 Apparatus for separating solids and liquid components
03/1981
03/31/1981CA1098523A1 Cationic polymer flocculant
03/25/1981EP0025463A1 Composition for use with papermaking fillers and methods of preparing filler and papermaking therewith
03/24/1981US4257900 Method of clarifying liquids
03/24/1981US4257879 Process for dewatering coal slurries
03/24/1981CA1097928A1 Improved floculation process for the separation of hard to filter liquid/solid mixes through filtration
03/18/1981EP0025030A1 Regeneration process of a filtering apparatus and device for implementing such process
03/17/1981US4256570 Purification of phosphoric acid
03/17/1981CA1097605A1 Water clarification
03/17/1981CA1097574A1 Gravity settling
03/10/1981CA1097257A1 Method and apparatus for precipitating colloids from aqueous suspensions
03/03/1981US4254255 Aqueous reaction of polyamine with alkylene dihalide in presence of emulsifier
03/03/1981US4254250 Aminated acrylonitrile homo- or copolymers for treating sewage sludge, industrial wastes, silty water
03/03/1981US4253965 Purification device
03/03/1981US4253964 Device for bringing about particle growth in a flowing liquid suspension
03/03/1981US4253958 Method of treating polluted aqueous media
03/03/1981US4253953 Centrifugal oil filter
03/03/1981US4253508 Selective filtering of tobacco smoke by enhanced filtration efficiency
02/1981
02/24/1981US4252625 In a moist, humid enclosed environment
02/17/1981US4251651 Paper additive, flocculant, dehydrating agent
02/17/1981US4251378 Gravity settling
02/10/1981CA1095433A1 Reversible flow, inclined plate clarifier and method of operation
02/04/1981EP0023388A1 A sedimentation tank
01/1981
01/27/1981US4247400 Rotary rake structure for a settling tank
01/27/1981US4247395 Sewage treatment process and apparatus
01/27/1981US4247312 Drilling fluid circulation system
01/27/1981CA1094460A1 Center pier circular thickener with torque absorber
01/22/1981WO1981000103A1 Apparatus for producing sludge
01/21/1981EP0022475A1 Aqueous basic polyaluminum-iron halide solutions and method of preparing
01/14/1981EP0022423A2 Apparatus for treating raw water such as surface water, waste water and the like by means of sedimentation
01/13/1981US4244708 Method and apparatus for separating components from a flowing medium by means of centrifugal force
01/13/1981CA1093473A1 Flocculation and mechnical separation of petroleum drilling residual sludge
01/13/1981CA1093283A1 Method and a device for bringing about particle growth in a flowing liquid suspension
01/08/1981WO1981000005A1 Centrifugal oil filter
01/07/1981EP0021811A1 Method of and apparatus for treating liquid stored in a machine tool system settling tank
01/06/1981CA1092858A1 Non-metallic transmission chain
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