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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/55032


    Title: Dialysis in double-pass cross-flow rectangular membrane modules with external recycle for improved performance
    Authors: 葉和明;Yeh, Ho-ming
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: dialysis;external recycle;cross-flow;rectangular module;performance improved
    Date: 2011-01-01
    Issue Date: 2011-08-09 15:24:44 (UTC+8)
    Abstract: The predicting equations for mass transfer rate in cross-flow rectangular dialyzers with double flow and recycle, have been derived by mass balances. The recycling operation has two conflicting effects. One is the desirable effect of the increase in fluid velocity, resulting in an increased mass transfer coefficient. The other is the undesirable effect of the reduction in concentration difference due to remixing, resulting in decreased mass-transfer driving force. In contrast a single-pass device without recycling, considerable improvement in mass transfer is achieved if the cross-flow rectangular dialyzer of same size is operated with double pass and external recycling. It is concluded that recycle can enhance mass transfer, especially for larger reflux ratio.
    Relation: Membrane Water Treatment 2(2), pp.75
    DOI: 10.12989/mwt.2011.2.2.075
    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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