METHOD FOR OPERATING FILTRATION DEVICE, AND FILTRATION DEVICE

摘要

This method according to the present invention is for operating a filtration device provided with one or more filtration modules having a plurality of hollow fiber membranes aligned in one direction and a pair of holding members for fixing both ends of the plurality of hollow fiber membranes, and one or more washing modules for supplying air in the form of bubbles from below the filtration modules, the method comprising an operation step for performing a filtration treatment using the filtration modules, and a washing step for washing the filtration modules while stopping the filtration treatment performed by the filtration modules for 0.25-3 hours, wherein the washing step is performed at intervals of 12-72 hours.