Concentration polarization in cross-flow reverse osmosis

Lianfa Song, Sanchuan Yu

Research output: Contribution to journalReview articlepeer-review

47 Scopus citations


A dimensionless governing equation was formulated for a cross-flow RO process in which the local variation of concentration polarization was rigorously considered. It was shown in this formulation that the cross-flow RO process could be fully characterized with a single dimensionless parameter. The coupling between permeate flux and concentration polarization was properly solved and a closed-form analytical solution was obtained. This analytical solution enabled us to conveniently investigate concentration polarization in the RO process. The significance of local variation of concentration polarization was demonstrated, and the operations of RO under various conditions were simulated and investigated with the newly developed model.

Original languageEnglish
Pages (from-to)921-928
Number of pages8
JournalAIChE Journal
Issue number5
StatePublished - May 1999


Dive into the research topics of 'Concentration polarization in cross-flow reverse osmosis'. Together they form a unique fingerprint.

Cite this