MAINTAINING METHOD OF A FILTRATION MEMBRANE WHICH IS SEMI-PERMANENTLY USED AFTER REMOVING MACROVOID

摘要

PURPOSE: A maintaining method of a filtration membrane is provided to enhance safety of permeated water, and to improve removal efficiency of the filtration membrane without degradation of water permeability with aerogel.;CONSTITUTION: A maintaining method of a filtration membrane includes a step for dipping a modulated filtration membrane in an aerogel dispersing solution and a step for attaching the aerogel on macrovoid existing on the surface of the filtration membrane. The filtration membrane is an asymmetric ultrafiltration membrane or a microfiltration membrane. The diameter of the aerogel is 2-5μm.;COPYRIGHT KIPO 2010