Co-op Student, Department of Chemical Engineering, University of Waterloo, Canada.
Some transport characteristics of aromatic polyamide membranes in reverse osmosis
Article first published online: 9 MAR 2003
Copyright © 1976 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 20, Issue 6, pages 1491–1499, June 1976
How to Cite
Dickson, J. M., Matsuura, T., Blais, P. and Sourirajan, S. (1976), Some transport characteristics of aromatic polyamide membranes in reverse osmosis. J. Appl. Polym. Sci., 20: 1491–1499. doi: 10.1002/app.1976.070200608
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 15 SEP 1975
- Manuscript Received: 14 JUL 1975
The effects of solute concentration in the range of 0.0013 to 1.051 molality in the feed solution and operating pressure in the range of 100 to 900 psig on solute transport parameter DAM/Kδ in reverse osmosis have been studied for a class of laboratory-made aromatic polyamide membranes and aqueous sodium chloride feed solutions. The results showed that DAM/Kδ for NaCl increased both with increase in operating pressure and solute concentration in the concentrated boundary solution on the high-pressure side of the membrane. A general expression for DAM/Kδ for NaCl including the effects of both the above operating variables is given. These results are different from the corresponding results obtained for cellulose acetate membranes.