Cartridge type hollow fiber membrane module

A cartridge type hollow-fiber membrane module comprising:

• a housing;
• a plurality of hollow fiber membranes housed in the housing;
• a first potting part which bundles first ends of the hollow fiber membranes while keeping the first ends open;
• a second potting part which bundles second ends of the hollow fiber membranes while keeping the second ends sealed;
• a fixing part which detachably fixes the first potting part to the housing;
• a sealing part which liquid-tightly seals a space between the first potting part and the housing;
• and
• a holding part which holds the second potting part so that the second potting part is detachable from the housing and so that liquids can pass through a space between the second potting part and the housing,
• wherein a gap is provided between the second potting part and the housing,
• the second potting part is movable in a radial direction and an axial direction of the housing, and
• the holding part restricts a movement of the second potting part in the axial direction of the housing.