| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 08/05/1993 | WO1993014851A1 Process, apparatus and composition for recycling engine coolant |
| 08/05/1993 | DE4202939A1 Device for removing floating sludge from circular flotation tanks - in which rotating spiral vanes extend from tank centre to walls and convey sludge over tank rim into collection channel |
| 08/05/1993 | DE4202674A1 Assembly separates solids and gases from fluids - with two linked water cyclones recovering dental amalgam or concentrating stainless steel etching water effluent |
| 08/05/1993 | CA2129358A1 Remote controlled sludge removal apparatus |
| 08/04/1993 | EP0553599A1 Liquid separating device |
| 08/04/1993 | EP0553575A1 Novel cationic polyamines useful as drainage aids and stabilizers for rosin-based sizing agents |
| 08/01/1993 | CA2088531A1 Separation accelerator |
| 07/31/1993 | CA2083984A1 Paint spray booth treatment of waterborne coatings |
| 07/29/1993 | DE4301364A1 Decolourising baths used to dye or rinse oxidised aluminium |
| 07/27/1993 | US5230808 Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater |
| 07/27/1993 | US5230794 Anaerobic treatment of waste water, three phase separator |
| 07/21/1993 | EP0387262B1 Separator |
| 07/20/1993 | US5228983 Particle separator |
| 07/15/1993 | DE4303529A1 Chemical-physical and biological physical cleaning of soil - comprises mixing with water, coarse material is separated, and sludge is sedimented and biologically treated using fluidised bed procedure |
| 07/14/1993 | EP0551162A2 Ultrasonic wave generator and floating or suspended particle collecting apparatus using the same |
| 07/14/1993 | EP0551061A1 Process for the preparation of a coagulating chemical |
| 07/14/1993 | EP0550470A1 Improved filtration technique. |
| 07/14/1993 | CN1074199A Circulating sludge method for integrating water supply with drainage channels |
| 07/13/1993 | US5227076 Clarification, back-pulse filtration |
| 07/13/1993 | US5227061 Fuel/contaminant separator |
| 07/13/1993 | US5227050 Floating suction extractor for skimming liquids having a tendency to foam |
| 07/13/1993 | CA1320151C Process for separating substances from a liquid and device for carrying out the process |
| 07/13/1993 | CA1320145C Muddy water processing apparatus |
| 07/13/1993 | CA1320144C Water pressure regulator for hemodialysis apparatus |
| 07/10/1993 | CA2086951A1 Ultrasonic wave generator and floating or suspended particle collecting apparatus using the same |
| 07/08/1993 | WO1993013017A1 Improved process for separating red mud in production of alumina from bauxite |
| 07/08/1993 | WO1993012857A1 Method of recovery of printing ink wastes |
| 07/08/1993 | DE4200064A1 Mobile wet-cleaning machine with cleaning fluid tank - has at least one cleaning tool, suction foot, micro or ultra filter and pump |
| 07/08/1993 | CA2125498A1 Method of recovery of printing ink wastes |
| 07/08/1993 | CA2124570A1 Improved process for separating red mud in production of alumina from bauxite |
| 07/07/1993 | EP0549650A1 Arrangement for purification of waste water. |
| 07/06/1993 | US5225089 Method and apparatus for separating particles |
| 07/01/1993 | DE4205810C1 Appts. for floating sludge removal from cleaning basin - has brush bar moved by crank rods over surface towards catch trough back above surface |
| 06/30/1993 | EP0548729A1 Separation tank with vibrating screen for the filtration of process water |
| 06/30/1993 | EP0548320A1 Process and device for separating metallic phases from other phases. |
| 06/30/1993 | CN1073718A Method of separating thallus from glutamic acid fermented liquor |
| 06/29/1993 | US5223126 System for decontaminating dry cleaning waste water with controlled pumping |
| 06/24/1993 | WO1993012888A1 Centrifuge with separable bowl and spool elements providing access to the separation chamber |
| 06/23/1993 | CN2136836Y Biological treatment device for sewage |
| 06/22/1993 | US5221790 Mixed polysaccharide precipitating agents and insulating articles shaped therefrom |
| 06/17/1993 | DE4241178A1 Floating matter sepn. system for fluids - has settling chamber and precipitating chamber with walls for part flows, for hazardous matter removal |
| 06/16/1993 | EP0546850A1 Metallic sulfates as wastewater clarificant and their preparation |
| 06/15/1993 | US5219470 Apparatus and method for clarifier sludge collection |
| 06/15/1993 | CA1319114C Liquid waste processing apparatus |
| 06/13/1993 | CA2085188A1 Process for the preparation of a caogulating chemcial |
| 06/10/1993 | WO1993011165A1 Preparation of a solid ziegler catalyst by using a multifunctional, pivoting, inclinable reactor and the equipment for this |
| 06/10/1993 | WO1993011076A1 Method and apparatus for batchwise biological and chemical purification of soil water |
| 06/09/1993 | EP0545383A1 Separation of solids from aqueous suspensions using modified amine functional polymers |
| 06/08/1993 | US5217614 Clarifier with integral trusses |
| 06/08/1993 | US5217613 Filter apparatus |
| 06/08/1993 | US5217609 Combination sludge collector, aerator, and return pump |
| 06/03/1993 | DE4139572A1 Sieve for circular plan rain water gulley - where sieve is automatically cleansed by prongs rotated by flow of water |
| 06/02/1993 | EP0544469A1 Treating photoresist waste |
| 06/02/1993 | CN2134885Y Side-flow settler for corrugated sloping sheet set |
| 06/02/1993 | CN1072660A Settling agent for silt and producing method thereof |
| 06/02/1993 | CN1072610A Quick and independent recoverying method for breach precipitation |
| 05/27/1993 | WO1993009875A1 Phase separation apparatus |
| 05/27/1993 | WO1993009753A1 A container for receiving and separating a fluid, preferably blood plasma, into its ingredients |
| 05/27/1993 | DE4138469A1 Suspension purificn. and pre-thickening - has inflow set according to outflow for max efficiency at a following discontinuous filter press |
| 05/26/1993 | EP0543047A1 Method and device for cleaning of rubble |
| 05/26/1993 | CN1072462A Method for separating metal phase from other phase containing metal phase and apparatus for implementation of same method |
| 05/25/1993 | CA1318377C Sampling processes for use in the controlled addition of conditioning material to suspensions, sludges and the like and apparatus therefor |
| 05/23/1993 | CA2056023A1 Device for the removal of oil or volcanic ash from the surface of a body of water |
| 05/19/1993 | CN2133348Y 刮泥机 Scraper |
| 05/19/1993 | CN1072157A Method for coagulant produced with diaspore ore |
| 05/18/1993 | CA1317917C Centrifugation pheresis system |
| 05/13/1993 | WO1993008892A1 Improvements in or relating to separators |
| 05/13/1993 | CA2121335A1 Improvements in or relating to separators |
| 05/12/1993 | CN1020581C Apparatus for thickening by flotation of slurries produced during treatment of waters |
| 05/06/1993 | DE4209059C1 Cover for sewage settling tank - comprises inner and outer chromium@-nickel@ steel plates, with space for rail for wheels of rake, and compensating and fitting layer |
| 05/05/1993 | EP0532494A4 Improved water clarifying apparatus |
| 05/05/1993 | EP0434796B1 Device for blasting with a moist granular agent |
| 05/05/1993 | CN2131590Y Honeycomb pipe chute |
| 05/04/1993 | US5207920 Centrifugal flotation separator |
| 05/04/1993 | US5207896 Wastewater treatment mechanism |
| 05/04/1993 | CA1317236C Separator |
| 04/29/1993 | WO1993007949A1 Central feed device for sewage-treatment circular basins |
| 04/29/1993 | WO1993007948A1 Improvements in or relating to separators |
| 04/29/1993 | WO1993007946A1 Separators |
| 04/29/1993 | DE4143376A1 Unit for removal of floating and suspended matter and sand from supply channel of clarification plant - comprises grid or sieve, screw conveyor sepn. device and a classifying conveyor |
| 04/29/1993 | CA2121467A1 Separators |
| 04/29/1993 | CA2120000A1 Improvements in or relating to separators |
| 04/28/1993 | EP0539310A1 Grease separator |
| 04/28/1993 | EP0538370A1 Separator |
| 04/27/1993 | CA1316835C Separation of ash from regenerated adsorbent |
| 04/24/1993 | CA2054024A1 Method of filtering coarse and fine debris from an induced fluid stream and apparatus therefor |
| 04/21/1993 | EP0537797A1 Compact type-device for separating and removing rakings and sand from a gully |
| 04/21/1993 | EP0537516A1 Process for treating back-wash liquid from a back-wash filter and sedimentation device for cleaning liquids |
| 04/21/1993 | EP0537422A1 Device for the central supply of waste water in a circular settling tank |
| 04/21/1993 | EP0537221A1 Sedimentation device. |
| 04/20/1993 | US5204452 N-halochitosans, their preparation and uses |
| 04/20/1993 | US5204048 Method for making a bundle of helical tubes and apparatus for separating impurities from a polluted liquid |
| 04/20/1993 | US5204001 Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products |
| 04/15/1993 | WO1993007539A1 Processing waste washout liquid containing photopolymer from printing plate manufacture |
| 04/15/1993 | WO1993007331A1 Improved deinking method using ink agglomeration |
| 04/15/1993 | WO1993007255A1 Device and method for conveying and separating a suspension containing biological cells or microorganisms |
| 04/14/1993 | EP0536195A1 Purification of aqueous liquor |
| 04/14/1993 | CN1020258C Separator for mud and water |
| 04/10/1993 | WO1993007092A1 Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products |
| 04/10/1993 | CA2053086A1 Liquid clarifier |