| http://www.w3.org/ns/prov#value | - The invention will be illustrated with the use of cellulose-acetate-type membranes; however, the invention may employ other cellulose-ester-type membranes or membranes of other polymeric material, such as polysulfone like alkyl polysulfone, fluorocarbon polymers like polyvinylidene fluoride polymers, polyamides, polyolefins and other polymeric material used or useful for membrane separation.
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