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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/10791


    Title: Electro-remediation of MTBE in Groundwater by Using the Iridium Dioxide (IrO2) Coated Electrode
    Authors: Ting-Nien Wu(吳庭年)
    Contributor: 圖書資訊館
    Keywords: Methyl tert-butyl ether (MTBE)
    Iridium dioxide (IrO2)
    Direct oxidation
    Indirect oxidation
    Redox mediato
    Date: 2010-06
    Issue Date: 2010-09-13 15:01:44 (UTC+8)
    Abstract: Methyl tert-butyl ether (MTBE) is always the most likely found compound at the front of a gasoline plume due to
    its chemical characteristics. In this study, an Iridium dioxide (IrO2) coated electrode was utilized to perform
    electro-remediation of MTBE in a lab-scale bath electrolyzer. Depending on the constant-potential controls,
    electro-remediation of MTBE can be conducted either through direct oxidation, water electrolysis competition, or
    indirect oxidation. Direct oxidation mechanism performed MTBE removal up to 39 % as electrolyzing below 1.2 V, and
    the occurrence of water electrolysis competition dropped MTBE removal as increasing the operative potential up to 2.0
    V. The continual increase of operative potential above 2.0 V brought about indirect oxidation of MTBE through the
    chain reactions of the redox mediator S2O8
    2-/ SO4
    2-. The products of MTBE degradation were identified as tert-butyl
    alcohol (TBA), acetone, and CO2 by GC/MS, and the distributions of carbon atoms in TBA, acetone, CO2, and MTBE
    were found 18, 12, 62, and 8% through the optimum control of electro-remediation.
    Relation: The 9th Symposium on Electrokinetic Remediation
    Appears in Collections:[環境工程系所] 期刊論文

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