Filtration apparatus using hollow fiber membrane

A filtration apparatus using a membrane of hollow fibers therein, comprising:

• a bundle of hollow fibers collected and fixed at one end thereof with an adhesive, and closed at the other end thereof;
• a hollow frustrum-shaped cap member coupled at the wide, base portion thereof to the collected and fixed end of said bundle;
• a tubular projection extending from the narrow, top portion of said cap member;
• a housing provided with an opening at its upper end for receiving the bundle of hollow fibers therein;
• flange means on the inner wall of said housing for engaging the base portion of said cap member, thereby supporting the hollow fiber bundle;
• a removable cover member for closing the upper end opening of said housing in a liquid-tight manner;
• a first opening in said cover member providing a fluid path between the interior and the exterior of said housing;
• a second opening in said cover member in communication with said tubular projection for providing a fluid path from the interior of said cap member to the exterior of said housing;
• at least two spaced seals extending around the circumference of said tubular projection for preventing direct communication between said second opening and the interior of said housing;
• a leakage opening in said cover member between said spaced seals for leading any liquid leaking across one of said seals to the outside of said housing;
• and
• means for coupling one of said first and second openings to an inlet for liquid to be treated and the other of said openings to an outlet for liquid to be treated.