A membrane separator assembly

摘要

A membrane separator assembly (220) for being installed in a treatment vessel; the membrane separator assembly (220) comprising: at least one flat-type membrane module 203 comprising a separating membrane (213) and membrane fixing members (214), a surface of a separating membrane (213) being oriented vertically, and both sides of said separating membrane (213) being fixed by said membrane fixing members (214); a gas diffuser (204), which is disposed below said membrane modules (203), for diffusing gas to generate gas-liquid mixed flow and cleaning the membrane surface of said separating membrane (213) by means of said gas-liquid mixed flow; and enclosure wall structures (206) for guiding gas diffused by said gas diffuser (204) to the membrane surface of said separating membrane (213); wherein said separating membrane (213) is positioned between a pair of said enclosure wall structures (206) which are arranged parallel to the surface of said separating membrane, characterized in that: at least one of said enclosure wall structures (206a, 206b) is provided with one or more passages (207) through which water is flowable.