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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/2389

    標題: 以含奈米零價鐵之混合薄膜反應牆進行地下水中污染物之還原處理(1/3)
    Reduction treatment of polluted groundwater using reactive hybrid-membrane barrier containing nanoscale zero-valent iron (1/3)
    作者: 余光昌
    貢獻者: 環境工程與科學系
    關鍵字: 奈米級零價鐵
    Nanoscale zero-valent-iron
    reactive barrier membranes
    lag time
    日期: 2005
    上傳時間: 2008-07-31 14:37:44 (UTC+8)
    出版者: 台南縣:嘉南藥理科技大學環境工程與科學系
    摘要: 本研究乃欲結合自製的奈米級零價鐵和
    PVA 薄膜,製成具活性之有機-無機混合薄膜反
    (如圖1 所示)可以明顯看出,鐵粒子均呈現球型
    而以X 光繞射儀(XRD)了解其成份結構時,發
    份。此外,穿透試驗發現下列結果: (1)硝酸鹽
    起始濃度愈高,穿透之遲滯時間(lag time)愈
    短;(2) PVA 薄膜厚度愈小,穿透之遲滯時間愈
    短;(3) PVA 薄膜中奈米級零價金鐵含量愈大,
    The purpose of this study is to collaborate
    nanoscale Fe(0) with membranes to form reactive
    barrier membrane for the reduction or
    dechlorination remediation of nitrates from
    groundwater under controlling of initial
    concentrations of pollutants, PVA membrane
    thickness and the content of nanoscale Fe(0) in
    membranes. Result reveals that the specific area of
    the synthesized Fe(0) is 74.68±1.73m2/g.The
    diameter of the synthesized Fe(0) particles could
    be found smaller than 100 nm by the scanning of
    FE-SEM. Then, the Fe(0) was confirmed by the
    analysis of XRD. By the breakthrough tests, the
    following could be found: (1)the higher the initial
    nitrate concentration, the shorter the lag time; (2)
    the thicker the PVA membrane thickness, the
    shorter the lag time; (3)the more the content of
    nanoscale Fe(0) in PVA membrane, the longer the
    lag time.
    Appears in Collections:[環境工程與科學系(所)] 科技部計畫

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