Process for cleaning filters

Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...

Reexamination Certificate

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Details

C134S003000, C134S028000, C134S029000, C210S756000, C210S758000, C210S759000

Reexamination Certificate

active

08062430

ABSTRACT:
Filters used in the beverage industry fouled by polyphenol-protein complexes and carbohydrate polymers can be cleaned by treating the filters either with the following methods:Solubilization of at least part of the carbohydrate polymers followed by a treatment of the resulting polyphenol protein complex with an oxidative chemical.Treatment of the fouled filters through a back-wash method using an oxidative chemical. In both cases it is not necessary to rinse the membranes after cleaning with a reductive chemical.

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Trägårdh, Gun, Membrane Cleaning,Desalination, 1989, 71, 325-335.

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