Patent ID: 6387271
Filing Date: 2002-05-14
Classification: B01D,C02F,G21C,Y02E

Abstract:
A method for purifying a condensate from a power generating plant to remove iron-containing particulate or colloidal contaminants therefrom, said method comprising:passing the condensate including the iron-containing contaminants in one direction through a plurality of pleated filter elements contained within a housing, a pleated filter medium contained within each of said pleated filter elements including a pleated hydrophilic film comprising an ultra-high molecular weight polyethylene and having a pore size in the range from about 0.001 micron to about 10 microns, including directing the condensate through the pleated hydrophilic film contained within each of the pleated filter elements, such that the iron-containing contaminants in the condensate are reduced to a level of about 2 parts per billion or less; and cleaning the plurality of pleated filter elements by directing a backwash fluid in an opposite direction through the housing containing said plurality of pleated filter elements, including directing the backwash fluid through the pleated hydrophilic film contained within each of the pleated filter elements.