Econity Co., Ltd.

Kongsuen Hong

Jinho Kim

Minsoo Park

Hanhyoung Cho

Byungho Choi

Namseok Gil

Provided is a cartridge-type hollow fiber membrane module including a hollow fiber membrane unit module with a free end and a cartridge frame and a submerged water treatment apparatus including an air diffuser apparatus capable of intermittent and continuous aeration disposed below the hollow fiber membrane module, wherein the cartridge-type membrane module with the free end using the coarse bubble generating air diffuser apparatus capable of intermittent/continuous aeration in conjunction with an air accumulation pipe may control aeration/non-aeration cycles through adjustment of the volume of an air chamber and an amount of inflow air and carry out continuous aeration based on changes in raw water load and a concentration of solids in a membrane separation tank.

Cartridge-type hollow fiber membrane module comprising submerged hollow fiber membrane unit module with free end and submerged apparatus for water treatment comprising air diffuser apparatus capable of intermittent/continuous aeration and its aeration method

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Hwaseong-si, South Korea

Kongsuen Hong