Title

Incorporation Of Osmotic Pressure In An Integrated Incremental Model For Predicting Ro Or Nf Permeate Concentration

Keywords

Mass transfer; Nanofiltration; Osmotic pressure; Reverse osmosis; Solution diffusion

Abstract

Consideration of concentration, recovery and osmotic pressure has been incorporated in a fully integrated diffusion based mass transfer model identified as integrated osmotic pressure model (IOPM). Osmotic pressure was incorporated into the model using correction coefficients that were calculated from boundary conditions, which were determined from the feed and concentrate streams osmotic pressures. Predicted permeate stream water quality using IOPM and the homogenous solution diffusion model (HSDM) were compared with and without consideration of osmotic pressure. IOPM was verified using independently developed data from full and pilot scale plants. The numerical simulation and statistical assessment show that osmotic pressure corrected models are superior to non-osmotic pressure corrected models, and that IOPM improved predictability of permeate stream water quality. © 2005 Elsevier B.V. All rights reserved.

Publication Date

4-10-2005

Publication Title

Desalination

Volume

174

Issue

2

Number of Pages

145-159

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.desal.2004.09.008

Socpus ID

18844440724 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/18844440724

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