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Published in:
2021 | OriginalPaper | Chapter
Pervaporation as an Alternative Desalination Method
Authors : Wladyslaw Kaminski, Elwira Tomczak, Joanna Marszalek
Published in: Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition)
Publisher: Springer International Publishing
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Abstract
In this study, several principles of desalination methods like the reverse osmosis, membrane distillation, and pervaporation were discussed. Particular attention was paid to the last as a promising alternative to desalination. The type of membrane and process parameters determines the effects of pervaporation, mainly the membrane affinity for water and the diffusion of the components. The pervaporation experiments were carried out using the laboratory equipment and a flat PERVAP 2210 membrane made of PVA. In these experiments, the feed temperature was changed from 20 to 80 and the salt concentration from 0.8 to 3.5% in solution. Satisfactory permeate fluxes were obtained as well as a rejection coefficients close to 99.9%.