The large aperture hollow yarn membrane module which in large aperture hollow yarn membrane module type filtration equipment for clarifying null

摘要

PROBLEM TO BE SOLVED: To easily detect breakage of a hollow fiber membrane surely by erecting a hollow fiber membrane module in the direction reverse to the conventional one and feeding compressed air of the volume not more than a bubble point.;SOLUTION: This large-pore size hollow fiber membrane module type filtration apparatus having a membrane breakage detecting function is constituted so that the breakage of the hollow fiber membrane (2) is detected by placing a raw water chamber (3) of the large-pore size hollow fiber membrane module (1) in an upper part and a treated water chamber (5) in a lower part, feeding forcibly compressed air of the volume not more than the bubble point to the membrane (2) in the chamber (3) full of raw water and checking whether the fed air leaks out of the membrane (2).;COPYRIGHT: (C)2003,JPO