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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/29742


    標題: Treatment of thin film transistor-liquid crystal display (TFT-LCD) wastewater by the electro-Fenton process
    作者: Colades, James I.
    de Luna, Mark Daniel G.
    Su, Chia-Chi
    Lu, Ming-Chun
    貢獻者: 環境資源管理系
    關鍵字: TFT-LCD
    Wastewater
    Dimethyl sulfoxide
    Response surface methodology
    Electro-Fenton
    日期: 2015-05
    上傳時間: 2016-04-19 19:06:33 (UTC+8)
    出版者: Elsevier Science Bv
    摘要: In this study, the electro-Fenton process was used to treat synthetic and actual TFT-LCD wastewaters. TFT-LCD wastewater contains high amounts of organic solvents mainly dimethyl sulfoxide (DMSO). For the simulated TFT-LCD wastewater, response surface methodology (RSM) was used to fit experimental data to empirical models with the responses, %DMSO removal and H2O2 efficiency (Delta[H2O2]/ Delta[DMSO]). Among the studied independent variables that affect DMSO degradation efficiency, Fe2+ loading was found to be the most dominant, then pH and, H2O2 loading being the least significant. DMSO removal and H2O2 efficiency improved with high Fe2+ loading, low H2O2 loading and low solution pH. The observed decrease in pH was attributed to the production of acidic degradation intermediates of DMSO. At 5 mM DMSO loading, treatment efficiency reached 100% DMSO removal. The electro-Fenton technology was also applied to real TFT-LCD wastewater resulting in TOC and COD removals of 68% and 79%, respectively.
    關聯: Separation And Purification Technology, v.145 n., pp.104-112
    Appears in Collections:[環境資源管理系(所)] 期刊論文

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