Incorporation of osmotic pressure in an integrated incremental model for predicting RO or NF permeate concentration

    Authors

    Y. Zhao;J. S. Taylor

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Desalination

    Keywords

    osmotic pressure; reverse osmosis; nanofiltration; solution diffusion; mass transfer; MEMBRANE; NANOFILTRATION; WATER; Engineering, Chemical; Water Resources

    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.

    Journal Title

    Desalination

    Volume

    174

    Issue/Number

    2

    Publication Date

    1-1-2005

    Document Type

    Article

    Language

    English

    First Page

    145

    Last Page

    159

    WOS Identifier

    WOS:000228949700004

    ISSN

    0011-9164

    Share

    COinS