| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 08/30/1977 | US4045355 Clarification plant |
| 08/30/1977 | US4045347 System for pollution suppression |
| 08/30/1977 | US4045326 Suspended solids extraction system and method |
| 08/23/1977 | US4043920 Skimmer for square settling tanks |
| 08/23/1977 | US4043912 Clarification tank |
| 08/23/1977 | US4043908 Process for cleaning of a dispersion of dispersed particles |
| 08/23/1977 | US4043904 Waste water treatment method |
| 08/09/1977 | US4040961 Separation of solids from a liquid |
| 08/09/1977 | US4040960 Waste water apparatus, pollution control |
| 08/02/1977 | US4039542 Water treatment |
| 08/02/1977 | US4039449 Parallelograms |
| 07/26/1977 | US4038185 Scum control system for peripheral feed channel of sedimentation tank |
| 07/26/1977 | US4038183 Flocculation process |
| 07/12/1977 | US4035301 System for pollution suppression |
| 07/12/1977 | US4035296 Waste water, gases |
| 07/05/1977 | US4033866 By allowing them to sink into a flushing liquid |
| 07/05/1977 | US4033841 Liquid removing method and apparatus |
| 06/21/1977 | US4031138 Stable substituted acrylamides or methacrylamides |
| 06/21/1977 | US4031006 Vortex coagulation means and method for wastewater clarification |
| 06/14/1977 | US4029584 Pneumatic sludge discharging system |
| 06/07/1977 | US4028256 Separation device |
| 06/07/1977 | US4028249 Sewage settling tank |
| 05/31/1977 | USRE29241 Water clarification process |
| 05/31/1977 | US4026804 For use in deep fat fryers |
| 05/31/1977 | US4026477 Process for the separation of components of scrap storage batteries |
| 05/24/1977 | US4024881 Apparatus for removing gelatinous sludge and solids from settling basins |
| 05/17/1977 | US4024060 Sewage clarifier system |
| 05/10/1977 | US4022697 Sealed sedimentation device |
| 05/10/1977 | US4022696 Paper, pulp industries |
| 05/10/1977 | US4022691 Mixing chamber for thickening sewage sludge by means of a flocculation agent combined with overflow drainage means |
| 05/03/1977 | US4021206 Separating coal particles from water |
| 04/12/1977 | US4017402 Sedimentation tank having a rotary rake structure |
| 04/12/1977 | US4017396 Centrifugal filtration tube for removal of the mother liquor from the crystals in the purification of a chemical compound by recrystallization |
| 04/12/1977 | US4017392 Organic peroxides |
| 04/12/1977 | US4017390 Centrifuging |
| 03/29/1977 | US4014786 Continuous process for producing synthesis gas fuel gas, reducing gas |
| 03/15/1977 | US4012437 Method of producing betaines, monomers and polymers containing betaine-type units and novel and useful copolymers thereby obtained |
| 03/15/1977 | US4012354 Acrylamide polymers, nonionic surfactants, soda ash |
| 03/08/1977 | US4011164 Skimmer apparatus for sewage settling tanks and the like |
| 03/01/1977 | US4010135 Composition and method for dispersing high molecular weight flocculant polymers in water |
| 03/01/1977 | US4009706 Cationic melamine-formaldehyde acid colloid; anionic polyacrylamide |
| 02/22/1977 | US4009106 Sewage treatment |
| 02/15/1977 | US4008153 Reactor for purification of water by fluid filtration |
| 02/01/1977 | US4006247 Polymer intermediates |
| 02/01/1977 | US4006085 Liquid treating apparatus |
| 01/25/1977 | US4005019 Gravitational separator |
| 01/18/1977 | US4003717 Method and apparatus for recovering by-product silt fines from a slurry thereof |
| 01/11/1977 | US4002589 Preparation of water soluble segmented polymers |
| 01/04/1977 | US4001121 Gases or liquids |
| 12/28/1976 | US4000075 Sedimentation tank with rotary yieldable rake arm structure |
| 12/28/1976 | US4000069 Adding aqueous solutions of bis-triarylphosphonium salts |
| 12/28/1976 | US4000067 Method for rapid sedimentation of fine particles from suspensions |
| 12/28/1976 | US3999302 Liquid removing method and apparatus |
| 12/21/1976 | US3998714 Two stage oxidation for disinfection of ammonia-materials |
| 12/14/1976 | US3997444 Sewage settling tank |
| 12/14/1976 | US3997442 Method of separating and partitioning differing density phases of a multiphase fluid |
| 12/14/1976 | US3996696 Flocculation process |
| 11/30/1976 | US3994808 Treating contaminated liquids |
| 11/30/1976 | US3994806 Composition and method for flocculating suspended solids |
| 11/30/1976 | US3994804 Sewage sludge treatment system |
| 11/23/1976 | US3993791 Continuous lautering |
| 11/23/1976 | US3993568 Sludge settling basin |
| 11/16/1976 | US3992299 Sewage treatment devices particularly for marine applications |
| 11/09/1976 | US3990974 Waste treatment and solids separating system |
| 10/26/1976 | US3988241 Floating device for removing refuse situated on and under a water surface |
| 10/19/1976 | US3986962 Novel assembly for separating blood |
| 10/19/1976 | US3986592 Hot water extraction cell containing two or more deflection baffles |
| 10/05/1976 | US3984320 Vacuum filter leg for clarifying vessel |
| 09/28/1976 | US3982691 Centrifuge separation and washing device and method |
| 09/21/1976 | US3981804 Centrifuging, blood, thixotropic gel |
| 09/21/1976 | US3981686 Cationic flocculant |
| 09/21/1976 | US3981541 Shallow underground coal slurry concentration sump |
| 09/07/1976 | US3979441 Dispersants, viscosity modifiers |
| 09/07/1976 | US3979290 Apparatus and process for controlling and regulating the freedom of suspended matter |
| 08/31/1976 | US3977977 Separating device |
| 08/31/1976 | US3977974 Suspended sludge scraper for arcuate sedimentation zone |
| 08/31/1976 | US3977971 Method of feeding polymers |
| 08/24/1976 | US3976568 Method of wastewater treatment |
| 08/17/1976 | US3975270 Process for recovering usable olive-processing liquor from olive-processing waste solution |
| 08/17/1976 | US3975266 Dewatering process |
| 08/17/1976 | US3975257 Apparatus for removing particles and chemicals from a fluid solution |
| 08/10/1976 | US3974073 Coal liquefaction |
| 08/03/1976 | US3972819 Gravity |
| 07/27/1976 | US3971508 Oil clarification system |
| 07/20/1976 | US3970562 Aggregation treatment apparatus for waste water |
| 07/20/1976 | US3970556 Floating skimmer for cleaning the surface of a body of liquid, method and apparatus |
| 07/13/1976 | US3969329 Process for producing high molecular weight acrylamide water-soluble polymers by controlling the viscosity of the polymerization reaction medium with a water-miscible organic solvent |
| 07/13/1976 | US3969320 Recovery of resinous compositions consisting of, and including, polyphenylene ethers in particulate form from liquid media |
| 07/13/1976 | US3969249 Solids remover for high rate algae ponds |
| 07/13/1976 | US3969239 Method for using macroamine polymers as flocculating agents |
| 07/06/1976 | US3967777 Apparatus for the treatment of tar sand froth |
| 06/29/1976 | US3966617 Sludge elevator for fluid clarification system |
| 06/29/1976 | US3966575 Method for removing liquid from bearing material |
| 06/29/1976 | US3965581 Liquid removing method and apparatus |
| 06/22/1976 | US3965013 Gravity clarifier |
| 06/22/1976 | US3964991 Method and apparatus for precipitating colloids from aqueous suspensions |
| 06/15/1976 | US3963624 Clarifier |
| 06/08/1976 | US3962098 Gravity settling |
| 06/08/1976 | US3962093 Apparatus for removing contaminants from the surface of a fluid |
| 06/08/1976 | US3962086 Apparatus for the separation of the components of an aqueous concrete grout |