Reverse osmosis membrane having excellent anti-fouling property and method for manufacturing the same
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United States of America Patent
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Apr 22, 2003
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N/A
app pub date -
Aug 2, 2001
filing date -
Jul 30, 2001
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Abstract
A reverse osmosis membrane having excellent antifouling property, which is advantageous in terms of fundamental prevention of fouling generated by inorganic crystalloids, organic contaminants, and microorganisms, and a method for preparing the same. The membrane can be manufactured by hydrolyzing a titanium compound in an acidic aqueous solution to produce TiO.sub.2 particles of nano scale; dispersing the produced TiO.sub.2 particles in an acidic aqueous solution of pH 1-6 or an alkaline aqueous solution of pH 9-13 to yield a stable TiO.sub.2 dispersed solution; and immersing a reverse osmosis membrane prepared by a known method in the TiO.sub.2 dispersed solution to incorporate TiO.sub.2 into the membrane.
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