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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/75209

    Title: Effects of ring number and baffled-ring distances on ultrafiltration in the tubular membrane inserted concentrically with ring rod
    Authors: Yeh, Ho-ming;Ho, Chii-dong;Li, Cha-hsin
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: ultrafiltration;tubular membrane;ring-rod insert;baffled-ring distance;proper ring number
    Date: 2012-01-01
    Issue Date: 2012-03-13 15:58:59 (UTC+8)
    Publisher: Techno-Press
    Abstract: .The permeate flux declination along an ultrafilter membrane is due mainly to the concentrationpolarization
    resistance increment and the decline in transmembrane pressure. It was found in previous
    works that the concentration polarization resistance could be reduced in a ring-rod tubular membrane
    ultrafilter using the turbulent behavior. In the present study, the performance was further improved by
    properly and gradually decreasing the baffled-ring distance along the cross-flow channel coupled with
    properly adjusting the number of baffled rings. This theoretical analysis is based on the mass and momentum
    balances as well as the application of the resistance-in-series model. The correlation predictions are
    confirmed with the experimental results for dextran T500 aqueous solution ultrafiltration.
    Relation: Membrane Water Treatment 3(1), pp.51-62
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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