| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 10/10/1978 | CA1040171A1 Oil clarification system |
| 10/10/1978 | CA1040170A2 Biological fluid dispenser and separator |
| 10/10/1978 | CA1040169A2 Biological fluid dispenser and separator |
| 10/03/1978 | US4118321 Device for tanks of circular type such as, for example, thickeners, sludge tanks, mixing tanks and the like |
| 10/03/1978 | CA1039865A1 Process for the treatment of a suspension |
| 10/03/1978 | CA1039697A1 Process of separating and recovering solids and clear liquid phase from dispersions |
| 09/26/1978 | US4117023 Method of separation of catalytic residues derived from aluminum chloride |
| 09/26/1978 | US4116832 Method and means for the automatic regulation of sludge extraction in sewage treatment apparatus |
| 09/26/1978 | CA1039143A1 Composition and method for dispersing high molecular weight polymers in water |
| 09/19/1978 | CA1038986A1 Process for producing water-soluble polymers |
| 09/12/1978 | US4113934 Unsaturated imidazolines |
| 09/12/1978 | US4113685 Flocculating agent comprising water-in-oil emulsion of stabilizer plus NH-active polymer carrying formaldehyde and amine radicals |
| 09/12/1978 | US4113629 Separation device provided with a coalescence apparatus |
| 09/12/1978 | US4113552 Elutriation leg and method |
| 09/12/1978 | CA1038511A1 Removal of phosphorus from waste water |
| 09/12/1978 | CA1038508A1 Sewage treatment devices, particularly for marine applications |
| 09/05/1978 | US4111802 Water treatment apparatus and method |
| 08/29/1978 | US4110218 Liquid cleaning apparatus having cyclonic separators |
| 08/29/1978 | US4110215 Liquid level control system for separation tank |
| 08/29/1978 | US4110211 Process for the preparation of a substantially homogeneous lime water solution |
| 08/29/1978 | CA1037386A1 Purification of waste water containing organic and inorganic impurities |
| 08/22/1978 | US4109072 Addition polymers of unsaturated imidazolines |
| 08/22/1978 | CA1036954A1 Apparatus for processing the gas-main flushing liquor yielded in coke ovens |
| 08/22/1978 | CA1036953A1 Device for automatically extracting sludge from a water treatment apparatus and washing same |
| 08/15/1978 | US4107028 Treatment of iron concentrate slurry to improve filtration |
| 08/15/1978 | CA1036718A1 Separation method and device |
| 08/15/1978 | CA1036507A1 Traction-driven composite sludge raking mechanism for sedimentation tanks |
| 08/15/1978 | CA1036364A1 Filtration aids in uranium ore processing |
| 08/08/1978 | US4105558 Apparatus for draining of muddy liquids |
| 08/08/1978 | US4105510 Process for removing water from water soluble polymer |
| 08/08/1978 | US4105342 Liquid decanting and recycling machine |
| 08/01/1978 | US4104226 Pulp additives in paper manufacture |
| 08/01/1978 | US4104168 Sludge settling and de-watering apparatus |
| 08/01/1978 | US4104142 Electrostatic and electrolytic stimulation of coagulation |
| 07/11/1978 | US4100614 Method for polymer dissolution |
| 07/04/1978 | US4098699 Low turbulence settling tank |
| 06/27/1978 | US4097381 Separator with throw-away container |
| 06/20/1978 | US4096066 Dispersing materials |
| 06/20/1978 | US4096063 Process for separating floc and apparatus |
| 06/20/1978 | US4096062 Method and device for separation of suspended material from a fluid flow |
| 06/13/1978 | US4094785 Suction clarifier method |
| 06/13/1978 | US4094770 Process for removing unfilterable solids from an oil |
| 06/06/1978 | US4093605 Auxiliary agent for improving retention, drainage and treatment |
| 06/06/1978 | US4093542 Flocculating agent comprising water-in-oil emulsion of H-active polymer carrying formaldehyde and amine radicals |
| 05/30/1978 | US4092242 Removing synthetic detergents by emulsification then flocculation |
| 05/23/1978 | US4090966 Sediment collection and removal system for rectangular sedimentation basin |
| 05/16/1978 | US4089831 Antiagglomerants |
| 05/16/1978 | US4089782 Reversible flow, inclined plate clarifier |
| 05/02/1978 | US4087261 Multi-phase separator |
| 04/25/1978 | US4086169 Lamella separator for sedimenting (gravity separating) |
| 04/25/1978 | US4086160 Treatment of solids-liquid-gas mixtures |
| 04/04/1978 | US4082671 Sludge thickening apparatus |
| 03/28/1978 | US4081516 Separation of catalyst particles from a suspension of these particles in an aqueous hydroxyl-ammonium salt solution |
| 03/28/1978 | US4081342 Electrostatic method for treating material |
| 03/21/1978 | US4080300 Apparatus for distributing solids under slug loading |
| 03/21/1978 | US4080291 Cleaning device for sedimentation tank |
| 03/07/1978 | US4078129 Alkali metal borate coagulant |
| 03/07/1978 | US4077612 Metering and wetting system |
| 02/28/1978 | US4076615 Process and system for treating waste water |
| 02/28/1978 | US4076169 Centrifuge separation and washing device and method |
| 02/21/1978 | US4075109 Settling tank sludge collector |
| 02/21/1978 | US4075095 Filtration, settling, backwashing |
| 02/21/1978 | US4075090 Apparatus for gravity collecting and handling of products from tanks filled with liquid for dewatering devices |
| 02/14/1978 | US4074055 Process for preparing unsaturated imidazolines |
| 02/14/1978 | US4073763 Formaldehyde-amine adduct |
| 01/17/1978 | US4069150 Sludge removal mechanism |
| 01/17/1978 | US4069148 Biologically active solids, activated carbon, oxidation |
| 01/17/1978 | US4069143 Settling vessel |
| 01/10/1978 | US4067813 Compound separation device |
| 01/10/1978 | CA1024082A1 Decantation process using laminae with deflectors |
| 01/03/1978 | US4066549 Apparatus for the precipitation of human blood plasma components |
| 01/03/1978 | US4066522 Process for the production of high molecular weight acrylamide polymers |
| 12/13/1977 | US4062832 Quaternized epichlorohydrin copolymer useful in treating potable water and method of preparation |
| 11/22/1977 | US4059531 Automatic sludge extraction and washing device for use in a water treatment settling apparatus |
| 11/22/1977 | US4059529 Baffle for water or sewage settling tanks |
| 11/08/1977 | US4057482 Apparatus for removing liquid from liquid bearing material |
| 11/01/1977 | US4056477 Separating apparatus for clarifying liquid |
| 11/01/1977 | US4056466 Sludge, amine |
| 10/25/1977 | US4055497 Hold-down mechanism for scraper conveyor and settling tank |
| 10/25/1977 | US4055494 Thickening device and method |
| 10/25/1977 | US4055491 Apparatus and method for removing fine particles from a liquid medium by ultrasonic waves |
| 10/18/1977 | US4054529 Device for treating a suspension |
| 10/18/1977 | US4054520 Scum removal system for a sewage settling tank |
| 10/18/1977 | US4054514 Sedimentation apparatus with flocculating feed well |
| 10/11/1977 | US4053421 Sedimentation tank with raking structure |
| 10/11/1977 | US4053401 Sludge treating process |
| 10/04/1977 | US4052311 Apparatus for separating solids from liquids |
| 09/27/1977 | US4051039 Activated sewage plant and process |
| 09/27/1977 | US4051027 Adding hydrogen peroxide |
| 09/20/1977 | US4049549 Liquid condition and settling tanks |
| 09/20/1977 | US4049547 Use of chelating agents for enhancing the settling of slimes |
| 09/13/1977 | USRE29397 Separating apparatus |
| 09/13/1977 | US4048076 Center column drive arrangement for circular clarifiers |
| 09/13/1977 | US4048069 Small surface liquid decantation apparatus and process for making same |
| 09/13/1977 | US4048063 Induced temperature gradient settling vessel |
| 09/06/1977 | US4046700 Sludge scraper mechanism |
| 09/06/1977 | US4046698 Coalescence apparatus |
| 09/06/1977 | US4046693 Scum skimmer apparatus |
| 09/06/1977 | US4046683 Water clarification |
| 08/30/1977 | US4045377 Cationic polymer prepared from dicyandiamide, a polyamide, a dialkylamine, and an epoxide |