Method for operating porous membrane for membrane distillation and module for membrane distillation

摘要

The membrane distillation apparatus includes a membrane distillation module including a plurality of hydrophobic porous hollow fiber membranes and a condenser for condensing the vapor extracted from the module, and the average pore size of the porous hollow fibers is 0.1. Saturated steam of water at a membrane distillation module having a porous hollow fiber filling rate of 10% to 80% and a pressure condition for membrane distillation of 1 kPa or more and the temperature of the treated water Below the pressure.