| 摘要 |
A method of improving the water permeability and/or cleaning a porous polymeric microfiltration or ultrafiltration membrane, preferably a hydrophobic/hydrophilic blended membrane, eg P VdF/PVP comprising the step of contacting the porous polymeric membrane with a source of monopersulfate, preferably an aqueous solution of 2 KHSO<SUB>5</SUB>.KHSO<SUB>4</SUB>.K 2 SO<SUB>4</SUB>.
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