Patents
Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338)
07/1979
07/11/1979EP0003013A1 Process and device for sludge thickening
07/11/1979EP0002704A1 Method for removing mud from waters
07/10/1979US4160734 For removing liquid, solid and semi-solid wastes
07/03/1979US4159949 Contaminant remover
07/03/1979CA1057673A1 Scum skimmer with buoyant chamber support
06/1979
06/26/1979US4159248 Denatering, sewage treatment
06/26/1979CA1057209A1 Mixer-settlers
06/13/1979EP0002254A1 Preparation of N-(aminomethyl)-alpha,beta-ethylenically unsaturated carboxamides, their polymers and the quaternized carboxamides thereof
06/05/1979CA1055903A1 Centrifuge separation and washing device and method
06/05/1979CA1055855A1 Electrostatic charge reduction in filter-separators
06/05/1979CA1055802A1 Cationic flocculants for raw water clarification
05/1979
05/29/1979US4156644 Pulsating sludge bed with inclined plates
05/22/1979US4155847 Cationic polymer flocculant prepared by reacting epichlorohydrin and a Mannich reaction product
05/22/1979US4155845 Flocculation
05/16/1979EP0001866A1 Device for gravity separating suspended substances from a liquid
05/15/1979US4154682 For separating iron powder from a liquid
05/15/1979US4154678 For collecting solid material from liquids having a hollow receptacle
05/15/1979US4154671 Method and apparatus for recycling undelivered cement
05/08/1979US4153419 Agglomeration of coal fines
05/08/1979US4153375 Method of agitating slurries
05/08/1979US4152800 Sludge suction unit for settling basins
05/01/1979US4152264 Lake pump suction mechanism
05/01/1979CA1053811A1 Sludge treating process
05/01/1979CA1053586A1 Surface skimming system
04/1979
04/24/1979US4151091 By agglomeration and centrifuging
04/24/1979US4151084 Sedimentation
04/24/1979US4151082 Settling unit for circulated coke quenching water
04/24/1979US4151075 Separation of components of a fluid mixture
04/24/1979CA1053160A1 Centre post clarifier with sludge recirculation
04/24/1979CA1053159A1 Sludge removal system
04/19/1979WO1979000192A1 Method and arrangement for cleaning cutting fluid
04/10/1979US4148731 Multi-stage apparatus for the separation of finely divided solids from liquids
04/10/1979CA1052482A1 Waste water purification system
04/10/1979CA1052289A1 Process and device for devining a creterion for a predeterminate preparation of the flow in fuid vein
04/03/1979US4147628 Blood partitioning method
04/03/1979CA1051792A1 Sedimentation tank having a rotary rake structure
03/1979
03/27/1979US4146473 Dewatering of mineral suspensions
03/27/1979US4146471 Upward helical flow
03/20/1979US4145287 Grease and water separating apparatus
03/20/1979CA1051132A1 Sedimentation apparatus with flocculating feed well
03/13/1979US4144174 Traveling siphon sludge collector
03/13/1979US4144173 Raking device
03/13/1979US4144172 Continuous cleansing through flotation and settling
03/13/1979US4144170 Apparatus for water treatment
03/13/1979CA1050680A1 Retention aids and flocculants based on polyacrylamides
03/13/1979CA1050509A1 Telescoping serum separator and dispenser
03/13/1979CA1050441A1 Lamellar separator with velocity-gradient coalescer
03/06/1979US4142977 Device for extracting sludge from a circular decanter
03/06/1979US4142970 Method and apparatus for mechanically and chemically treating liquids
03/06/1979CA1050179A1 Method of reclaiming water and coal from coal treatment underflow by two-stage separation of solids
02/1979
02/27/1979US4141832 Apparatus for removal of solids from a sedimentation zone
02/27/1979US4141831 Apparatus for removal of solids from a sedimentation zone
02/21/1979EP0000714A2 Auxiliary agent for the improvement of retention, dehydration and preparation, especially for the manufacture of paper
02/20/1979US4140638 Separating device for fluid system
02/20/1979US4140632 Concentrator device and method
02/13/1979US4139457 Method of and apparatus for purifying waste water
02/13/1979CA1048419A2 Rotating radial screen filter
02/06/1979US4138343 Apparatus for removing debris during sewage treatment
01/1979
01/30/1979US4137173 Trap for grease or other foreign matter dissolved or entrained in a liquid
01/30/1979US4137170 Travelling precipitate collector
01/30/1979CA1047692A1 Amine-epichlorohydrin polymeric compositions
01/30/1979CA1047225A1 Hydroxychlorides of aluminium and method
01/25/1979WO1979000027A1 Apparatus and process for ordinary and submarine mineral beneficiation
01/23/1979US4136018 Vortex separator with coaxial inlet and lightweight reject pipelines
01/23/1979US4136012 Compact apparatus for the purification of waste water by a physical chemical treatment
01/23/1979CA1047178A1 Method for treating pulp-containing waste liquors
01/23/1979CA1046871A1 Low viscosity piperidinium polymers, methods of preparation and use
01/16/1979US4134833 Water recycle unit-grey water clearifier
01/16/1979CA1046668A1 Process for treating slurry turbid water
01/09/1979US4133771 Apparatus for bringing about particle growth in a flowing liquid suspension
01/09/1979CA1045987A1 Device for treating a suspension
01/02/1979US4132845 Mechanical dewatering process for elastomer slurries
01/02/1979US4132643 Sludge and slime separating and settling device
01/02/1979CA1045560A1 Pulse transfer thickening
12/1978
12/26/1978US4131736 Polymers of sulfonic acid monomers
12/26/1978CA1045048A1 Grit selector
11/1978
11/28/1978US4127719 Heterogeneous vapor phase catalyst
11/28/1978US4127488 Method and apparatus for separating solids from liquids
11/28/1978US4126947 Settling and drying apparatus
11/21/1978US4126551 Method and apparatus for handling solvent extraction crud
11/21/1978CA1043032A1 Stabilization of cationically modified acrylamide polymers through the use of a halogen free oxygen containing inorganic acid or its alkali metal salts
11/14/1978US4125467 Liquid-solids separator
11/07/1978US4123947 Non-metallic transmission chain
11/07/1978CA1041994A1 Prewetting air-atomized powdered polyelectrolytes
10/1978
10/31/1978US4123365 Oil-water separator
10/24/1978US4122017 Multitube separator
10/24/1978US4122016 Settling tank
10/24/1978US4122009 Method of resolving a mixture of oil, water, and solids
10/17/1978US4120898 Sulfur containing vinyl amide cross-linking agents
10/17/1978US4120797 Cross-flow inclined plate clarifier
10/17/1978US4120796 Vertical flow inclined plate clarifier
10/17/1978US4120795 Device for separating a plural phase fluid system into its constituent phases
10/17/1978US4120791 Sludge thickener apparatus and method
10/17/1978US4120783 Slurrying, centrifuging
10/17/1978CA1040546A1 Perforate tube separator with depending lamellar thickener
10/10/1978US4119632 Method of promoting the crystallization of picloram
10/10/1978US4119544 Settling container
10/10/1978US4119539 Settling, agitation
10/10/1978US4119273 System for pollution suppression
10/10/1978CA1040326A1 Process for the treatment of a suspension