淡江大學機構典藏:Item 987654321/44179
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/44179


    Title: Abatement of concentration polarization in ultrafiltration using n-hexadecane/water two-phase flow
    Authors: Wang, Hui-min;Li, Chen-you;Chen, Shu-jen;鄭東文;Cheng, Tung-wen;Chen, Teh-liang
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Ultrafiltration;Concentration polarization;Two-phase flow;n-Hexadecane;Air sparging
    Date: 2004-07-01
    Issue Date: 2010-03-09 10:00:55 (UTC+8)
    Publisher: Elsevier
    Abstract: A novel method using n-hexadecane/water two-phase flow to abate concentration polarization in ultrafiltration was proposed. Compared with a corresponding air-sparged ultrafiltration, the n-hexadecane/water ultrafiltration was shown to have a higher permeate flux when concentrating a crude lipase solution. This was attributable to the much higher shear force induced by n-hexadecane droplets, and the reduction in concentration polarization was thus more pronounced. The range of injection factor resulting in bubble flow was broader in the n-hexadecane/water ultrafiltration than in the air-sparged ultrafiltration. In addition to the permeate flux, the recovery of lipase activity was also enhanced, and enzyme inactivation due to the use of the two-phase flow was not concerned. The benefits from the n-hexadecane/water two-phase flow were found to be common in various ultrafiltration practices.
    Relation: Journal of membrane science 238(1-2), pp.1-7
    DOI: 10.1016/j.memsci.2004.02.013
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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