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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/19477

    Title: Improvement of ultrafiltration performance in tubular membranes using a twisted wire-rod assembly
    Authors: 葉和明;Yeh, Ho-ming;Chen, K. T.
    Contributors: 淡江大學化學工程與材料工程學系
    Date: 2000-09-15
    Issue Date: 2009-11-04 15:57:40 (UTC+8)
    Publisher: Amsterdam: Elsevier
    Abstract: A hydrodynamic approach developed by a wired-membrane module for reducing the effects of concentration polarization and progressive fouling in membrane ultrafiltration, has been carried out. The wired-membrane module is modified from a tubular-membrane module by inserting concentrically a steel rod wrapped entirely with a tight fitting wire spiral, having a diameter nearly equal to the annular spacing, as a spacer. Experiments for ultrafiltration of dextran T500 aqueous solution in a wired-membrane module was carried out for various transmembrane pressures, feed concentrations, feed flow rates, and inclined angles of helical wire. Theoretical predictions were based on the resistance-in-series model and confirmed qualitatively with the experimental results. Considerable improvement of performance based on the same hydraulic dissipated energy, is obtainable by employing a wired-membrane module rather than using a tubular-membrane module without or even with a steel rod inserted concentrically.
    Relation: Journal of Membrane Science 178(1-2), pp.43-53
    DOI: 10.1016/S0376-7388(00)00477-4
    Appears in Collections:[化學工程與材料工程學系暨研究所] 期刊論文

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