Patent ID: 6063272
Filing Date: 2000-05-16
Classification: C02F,Y10S

Abstract:
An activated carbon water filter mounted in a filter vessel of a filtration assembly including means for regenerating the activated carbon therein without removing said filter from said filter vessel, said filtration assembly comprising:hollow filter vessel means for housing a barrier filter therein in electrically insulated relation thereto,an activated carbon barrier filter mounted in said vessel to divide said filter vessel into an upstream pre-filter portion and a downstream post-filter portion,first gas supply means in fluid communication with said downstream post-filter portion of said vessel for exerting a gas back pressure from said downstream post-filter portion of said filter vessel to said upstream pre-filter portion of same,direct current circuit means in which said activated carbon barrier filter is positioned as a resistor in electrically insulated relation to said hollow filter vessel means for heating said activated carbon barrier filter to drive off contaminants adsorbed or absorbed on said carbon therein, andcatalytic oxidation means in fluid communication with said upstream pre-filtered portion of said hollow filter vessel means for oxidizing contaminants driven off said activated carbon barrier filter.