PROCEDURE AND DEVICE FOR WATER TREATMENT, PARTICULARLY FOR WATER DESALINATION BY MEMBRANE DISTILLATION.

摘要

Procedure for water treatment, particularly for obtaining fresh water from salt water, by membrane distillation, in which the water to be treated is kept in a supply chamber (2), whose wall is at least partially formed by a hydrophobic membrane (3) permeable to water vapor, parallel to the hydrophobic membrane (3) extends a hydrophilic membrane (5), which in comparison to the hydrophobic membrane (3) has a greater thickness and a thermal conduction per unit With a lower surface and by means of a pumping effect, a difference in vapor pressure is generated between the water to be treated and the fresh water, so that membrane distillation is triggered by the difference in vapor pressure resulting from the pumping effect, condensing the water in the pores (3a) of the hydrophilic membrane (5).