| 摘要 |
AN IMPROVED ELECTROCOALESCENT/MAGNETIC SEPARATION (ECMS) SYSTEM FOR REMOVING CONTAMINANTS FROM WATER, INCLUDING DESALINIZATION, COMPRISES A DEVICE (12) FOR EXPOSING A STREAM OF WATER TO BE TREATED TO AN ELECTRIC FIELD, FOLLOWED BY INTRODUCTION OF IONIZED COAGULATING SUBSTANCES FROM GENERATOR (26), INCLUDING IONIZED GASES AND/OR METAL IONS, INTO VENTURI (24), FOLLOWED BY PLURAL FILTER STAGES (18, 20). THE FIRST FILTER STAGE (18) MAY COMPRISE A POLARIZABLE GLASS, ALUMINA, OR CERAMIC MEDIA PROVIDED AS A BED IN A TANK WITH AN UNDERDRAIN, SO AS TO PROVIDE SUBSTANTIAL RESIDENCE TIME. A POLISHING FILTER (20) MAY COMPRISE A VERY FINE FIBER OR ORGANIC GEL FILTER ELEMENT CONFINED BETWEEN RELATIVELY FLEXIBLE ELECTRICALLY- CONDUCTIVE SCREEN MEMBERS AND PROVIDED WITH A DC POWER SUPPLY TO POLARIZE THE FILTER. THIS ASSEMBLY IS CONFINED BETWEEN RELATIVELY RIGID, PERFORATED MEMBERS SUCH THAT THE FILTER ASSEMBLY CAN MOVE SLIGHTLY UPON BACKWASH TO DISLODGE CAKED-ON CONTAMINANTS OR THE LIKE, WHILE PRESERVING THE STRUCTURAL INTEGRITY OF THE FILTER ASSEMBLY.
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