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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/53744

    Title: Theoretical study on membrane extraction of Cu2+ with D2EHPA in Laminar Flow Circular Tube Modules
    Authors: Guo, Jia-jan;Ho, Chii-dong
    Contributors: 淡江大學化學工程與材料工程學系
    Date: 2007-08-16
    Issue Date: 2011-05-20 09:57:59 (UTC+8)
    Abstract: The predicting equations for the mass-transfer rate and mass-transfer efficiency in a concentric circular membrane extractor module under concurrent- and countercurrent-flow with various barrier locations were derived theoretically by calculating the mass balance on each subchannel. The analytical solution was obtained by using the separation variable and eigen-function expansion in power series. The mass-transfer efficiency enhancement in this study is represented graphically with the volumetric flow rate and permeable-barrier location as parameters. The theoretical predictions show that the improvements in the extraction rate, extraction efficiency, and mass-transfer efficiency can be achieved by setting the barrier location moving away from the kappa = 0.5. The influences of the barrier location, aqueous phase flow rate, and the concentrations of Cu(2+) on the mass-transfer efficiency enhancement are also discussed.
    Relation: The Fourth Conference of Aseanian Membrane Society, 11p.
    Appears in Collections:[化學工程與材料工程學系暨研究所] 會議論文

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