the present invention is directed to a plate - and - frame type membrane module inserted durable balls using vortex flow , and the membrane module can reduce concentration polarization , cake or gel layer and membrane fouling which generally occur in processes using plate - and - frame type membrane . thus , the use of a membrane module according to the present invention can prolong the period for cleaning of a membrane module and the exchange period of a membrane module , as well as maximize a passing amount without decreasing a quality of permeate .