A capillary module for membrane distillation process

The influence of a capillary module design and its operating parameters on the efficiency of the membrane distillation (MD) process has been studied. It was demonstrated that a uniform arrangement of the capillary membranes o ver the cross-section of module at 0.33 membrane packing density ensured ap propriate conditions of membranes cooling. This allowed to obtain a high va lue of the driving force for the mass transfer, hence the MD process procee ded with a high efficiency. The most favourable operating conditions of MD module were obtained with membranes arranged in a form of braided capillari es. The performance of membranes arranged parallel with their distribution alongside module controlled by sieve baffles was also satisfactory.