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Osmosis and reverse osmosis in solutions: Monte Carlo simulations and van der Waals one-fluid theory

Murad, S., Powles, Jack G., Holtz, B. (1995) Osmosis and reverse osmosis in solutions: Monte Carlo simulations and van der Waals one-fluid theory. Molecular Physics, 86 (6). pp. 1473-1483. ISSN 0026-8976. (doi:10.1080/00268979500102861) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:19400)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1080/00268979500102861

Abstract

Osmosis and reverse osmosis in solutions have been studied by computer simulations using the Gibbs ensemble Monte Carlo technique, and by using the equation of state method and the van der Waals one-fluid (vdW1) approximation. Representative solutions have been studied over a wide concentration range, so that both osmosis and reverse osmosis, as well as a transition between the two are observed. Properties investigated include the osmotic pressure, the solvent molecule exchange, and the chemical potential. The results show very clearly that vdW1 is a powerful theory for the systems studied here, and with just a few exceptions was found to be quite accurate. In addition, the osmotic pressure results are compared with the well known van't Hoff approximation, and found to do very well for modelling even quite high concentrations of almost ideal mixtures, but not that well for non-ideal mixing in solutions. Finally, the results show that even in the simpler systems studied, reverse osmosis can take place at a significant level. This confirms the promise of reverse osmosis as an efficient separation technique, as well as the viability of molecular simulation methods to study this important phenomenon.

Item Type: Article
DOI/Identification number: 10.1080/00268979500102861
Subjects: Q Science > QD Chemistry
Q Science > QC Physics
Divisions: Divisions > Division of Natural Sciences > Biosciences
Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: O.O. Odanye
Date Deposited: 03 Jun 2009 08:49 UTC
Last Modified: 16 Nov 2021 09:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/19400 (The current URI for this page, for reference purposes)

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