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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/60364

    Title: Effects of Soft Particle Deformability and Particle/Pore Size Ratio on the Blocking Mechanism in Dead-end Microfiltration
    Authors: Tung, K.L.;Hu, C. C.;Chuang, C. J.;Hwang, K.J.;Wu, T.Y.
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Saccharomyces cerevisiae;Blocking mechanism;Microfiltration;Particle deformability
    Date: 2010-08
    Issue Date: 2013-05-31 11:41:01 (UTC+8)
    Publisher: Weinheim: Wiley - VCH Verlag GmbH & Co. KGaA
    Abstract: Microfiltrations of Saccharomyces cerevisiae yeast particles of various deformabilities were conducted to examine the blocking mechanism due to particle deposition during the initial stage of the microfiltration process. The S. cerevisiae particles were treated with glutaraldehyde to form particles of various deformabilities. To compare differences in the blocking mechanisms among the different particles during microfiltration, a blocking model was adopted to estimate the filtrate flux, which accounts for initial blocking due to pore obstruction and subsequent blocking due to the growth of a cake over these initially blocked regions. The surface morphology of the cake layer on the membrane surface and the blockage by particles in membrane pores was examined by scanning electron microscopy (SEM). Analysis of the blocking mechanism of particles of varying deformability during microfiltration based on the blocking model indicated that softer particles resulted in more severe pore blocking problems and greater flux decline. A comparison of the theoretical results with experimental observations by SEM showed good qualitative agreement.
    Relation: Chemical Engineering and Technology 33(8), pp.1341-1348
    DOI: 10.1002/ceat.201000099
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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