Calculation of osmotic pressure difference across membranes in hyperfiltration

In this paper an attempt has been made to apply Pitzer equations into the Kedem and Spiegler expression of volume flux to obtain an effective method for calculating osmotic pressure differences across membranes. The agreement between the calculated values and the corresponding experimental results d...

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Bibliographic Details
Published in:Desalination 1999-03, Vol.121 (2), p.131-137
Main Authors: Hu, Zhong-Ai, Wu, Hong-Ying, Gao, Jin-Zhang
Format: Article
Language:English
Subjects:
Applied sciences
Calculation method
Chemical engineering
Exact sciences and technology
Hyperfiltration
Membrane separation (reverse osmosis, dialysis...)
Osmotic pressure
Pitzer equation
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Summary:In this paper an attempt has been made to apply Pitzer equations into the Kedem and Spiegler expression of volume flux to obtain an effective method for calculating osmotic pressure differences across membranes. The agreement between the calculated values and the corresponding experimental results demonstrates that the method is reasonable and feasible for hyperfiltration processes.
ISSN:0011-9164
1873-4464
DOI:10.1016/S0011-9164(99)00014-4