Cleaning method of the hollow fiber membrane module and hollow fiber membrane filtration device

摘要

In the membrane filtration method using hollow fiber membranes, in order to prevent the pressure increase of the hollow fiber Makugyaku during cleaning while suppressing the filtration resistance increase of the film by a convenient method, several with supply / discharge functions of the water on the side a plurality of the tubular casing having a side nozzle, and has a top end surface nozzle with the supply / discharge functions of the water on the upper end face, with a lower end surface nozzle with the supply / discharge functions of the water to the lower end surface hollow fiber membrane bundle made of the hollow fiber membrane is inserted, the ends of one side, is adhered and fixed to the cylindrical case by the resin at a position higher than the side nozzles of one of the side nozzles of at least a plurality of the hollow fiber membrane bundle and a hollow fiber membrane filtration device and a hollow fiber membrane filtration apparatus having the hollow fiber membrane module 4 has, at least two of the side a plurality of nozzles has been communicated by a pipe.