ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

A Capillary Module for Membrane Distillation Process

M. Gryta, M. Tomaszewska, and A. W. Morawski

Department of Water Technology and Environmental Engineering, Institute of Chemical Technology and Environmental Engineering, Technical University of Szczecin, PL-70-322 Szczecin, Poland

E-mail: margryta@mailbox.tuniv.szczecin.pl

Received: 19 May 2000

Abstract: 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 over the cross-section of module at 0.33 membrane packing density ensured appropriate conditions of membranes cooling. This allowed to obtain a high value of the driving force for the mass transfer, hence the MD process proceeded with a high efficiency. The most favourable operating conditions of MD module were obtained with membranes arranged in a form of braided capillaries. The performance of membranes arranged parallel with their distribution alongside module controlled by sieve baffles was also satisfactory.

Full paper in Portable Document Format: 546aa370.pdf

Chemical Papers 54 (6a) 370–374 (2000)