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US 8,801,867 B2Granted
Method for cleaning filter membranes
AssigneeX-Flow B.V.
InventorsArie Cornelis Besemer, Elmar Van Mastrigt, André Mepschen
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Abstract
A method for cleaning process apparatus used for production of liquids, especially for cleaning filters, for example membrane filters. The apparatus is contacted with a solution of periodate. It is especially preferred that the cleaning process is carried out at a temperature between 15 and 95° C.
Claims6
A method for cleaning organic matter fouled filter equipment, wherein the method comprises the steps of:
- (a) providing filter equipment fouled with organic matter comprising polysaccharides and proteins from the production of liquid foodstuffs,
- (b) contacting the fouled filter equipment with a first oxidizing agent comprising a solution of a periodate compound under alkaline conditions, wherein the polysaccharides react with the periodate compound to form aldehydes,
- (c) after step (b), oxidizing the aldehydes with a second oxidizing agent selected from the group consisting of hydrogen peroxide and peroxydisulphate, and
- (d) removing the organic matter from the filter equipment.
1 more element
Dependencies are inferred from the claim text.