Patent ID: 8568589
Filing Date: 2013-10-29
Classification: B01D

Abstract:
1. A separation membrane module in which a plurality of separation membrane elements equipped with end surface holding members disposed at ends of the separation membrane elements are connected in series and installed into a pressure-resistant vessel, wherein the plurality of separation membrane elements are connected in series by using a connection member, the connection member comprising engagement portions formed around the end surface holding member, the connection member also comprising a frictional resistance reduction structure that reduces frictional resistance on an inner surface of the pressure-resistant vessel, a continuous annular groove is formed in each of the end surface holding members in the circumferential direction of an outer circumferential part thereof, the connection member bridges across and is engaged with the respective continuous annular grooves of the end surface holding members adjacent to each other when the separation membrane elements are connected to each other, and a through-hole that establishes communication between the inner circumferential part and the outer circumferential part thereof is formed in the connection member.