Computational Simulation for Transport of Priority Organic Pollutants through Nanoporous Membranes

Authors

  • M. Ghadiri,

    1. Iran University of Science and Technology, Department of Chemical Engineering, Research Lab for Advanced Separation Processes, Tehran, Iran
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  • M. Ghasemi Darehnaei,

    1. Semnan University, Department of Chemical, Petroleum, and Gas Engineering, Research Group for Porous Media, Semnan, Iran
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  • S. Sabbaghian,

    1. Islamic Azad University, Chemical and Environmental Engineering Group, South Tehran Branch, Tehran, Iran
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  • S. Shirazian

    Corresponding author
    1. Iranian Research Organization for Science & Technology (IROST), Institute of Chemical Technologies, Tehran, Iran
    • Iranian Research Organization for Science & Technology (IROST), Institute of Chemical Technologies, Tehran, Iran
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Abstract

Modeling and simulation of membrane-based solvent extraction is conducted by computational fluid dynamics (CFD). The process is used for removal of priority organic pollutants from aqueous waste streams in nanoporous membranes. The pollutants include phenol, nitrobenzene, and acrylonitrile extracted by organic solvents. The mathematical model commonly applied to predict the performance of membrane-based solvent extraction is the conventional resistance-in-series model. Here, a comprehensive mathematical model is developed to predict the transport of pollutants through nanoporous media. In order to predict the performance of the separation process, conservation equations for pollutants in the membrane module are derived and solved numerically. The model is then validated through comparing with experimental data reported in the literature. The simulation results were in good agreement with the experimental data for different values of feed flow rates.

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