ANTIOXIDATION FILTRATION FILTER, METHOD FOR MANUFACTURING ANTIOXIDATION FILTRATION FILTER, APPARATUS FOR MANUFACTURING ANTIOXIDATION FILTRATION FILTER, AND FILTRATION APPARATUS HAVING ANTIOXIDATION FILTRATION FILTER

摘要

PROBLEM TO BE SOLVED: To provide an oxidation-suppressing technique for a filter substrate which requires no water quality control and does not deteriorate the filtration function.

SOLUTION: The antioxidation filtration filter 20 is composed of a filter substrate 211 for composing a hollow fiber membrane filter part 21 for trapping a suspended solid matter in a suspension and an antioxidation metal film 22 formed on the surface of the filter substrate 211 and consisting of gold for eliminating active species. That is, active species are prevented from reaching the filter substrate 211 by forming the antioxidation metal film 22 and the filtration function of the filter substrate 211 is prevented from deterioration by forming such a layer limited to the surface.

COPYRIGHT: (C)2009,JPO&INPIT