MEMBRANE SEPARATION DEVICE

摘要

A membrane separation unit (2) forming a membrane separation device is provided with a rack (5), a plurality of immersion type membrane modules (6) accommodated in the rack (5), and an air diffusing pipe (46) which is disposed below the membrane modules (6) so as to be in proximity of the membrane modules (6) in the vertical direction and has a plurality of air diffusing openings (46a) for discharging air.