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    National Tsing Hua University Institutional Repository > 原子科學院  > 生醫工程與環境科學系 > 期刊論文 >  ION-EXCHANGE AND SORPTION KINETICS OF CESIUM AND STRONTIUM IN SOILS


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/40717


    Title: ION-EXCHANGE AND SORPTION KINETICS OF CESIUM AND STRONTIUM IN SOILS
    Authors: LIU DC;HSU CN;CHUANG CL
    教師: 許俊男
    Date: 1995
    Publisher: 0969-8043
    Keywords: CLAY-MINERALS
    Abstract: ©1995 Elsevier - The characteristics of sorption kinetics of cesium and strontium were studied via the batch method for some varieties of important crude soils in Taiwan, i.e. sorption mechanism and intraparticle diffusion coefficients. Ion-exchange is the dominant reaction of Cs and Sr sorption for both soils chosen. In this study, the amount of exchanged cations was significantly affected by the mineral composition of soil. Experimental results indicated that monovalent cations were more exchangeable for Ca sorption and divalent cations were more exchangeable for Sr sorption on both soils. The rate limiting processes of Cs and Sr sorption reaction on chosen soils were film diffusion-controlled The film diffusion coefficients of Cs+ (D-FCs+) sorption on both soils were larger than those of strontium (D-FSr2+), in addition, the ratio of D-FCs+/D-FSr2+ is approximately equal to 4. The value revealed that the influence of ion charge on film diffusion is significant, and the film diffusion coefficient increases as the nuclide charge decreases.
    URI: http://www.elsevier.com/
    Elsevier
    http://nthur.lib.nthu.edu.tw/handle/987654321/40717
    Appears in Collections:[生醫工程與環境科學系] 期刊論文

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