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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/78006


    Title: 光電廠高色度廢水使用次氯酸鈉脫色之可行性研究;Study on the Feasibility of using NaOCl to Achieve Decolorization of photo-resistor wastewater from Flat Panel Display Factories
    Authors: 劉雅君;Liu, Ya-Jun
    Contributors: 環境工程研究所在職專班
    Keywords: 次氯酸鈉;光阻;化學混凝;氧化;脫色;NaOCl;color resist;coagulation;oxidation;Decolorization
    Date: 2018-07-24
    Issue Date: 2018-08-31 15:08:07 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本研究主要以光阻原料配製出色度廢水,以pH、時間、化學混凝及次氯酸鈉加藥量等操作變數,採瓶杯試驗將化學混凝程序搭配次氯酸鈉氧化程序,對同樣具有高色度廢水問題的光電產業,在原料及產業廢水性質與染整業不同之情況下,探討透過此手法去除色度與COD之可行性及其效率,並提供建議之加藥量。研究結果顯示先進行化學混凝程序COD約可降低9.14 %、真色色度約可降低62.33 %,後進行氧化程序,COD約可再降低25.47 %、真色色度則可達到百分之百去除率。透過化學混凝程序可將廢水中疏水性、帶有顏色的樹脂或助劑顆粒去除,達到去除原色度六成的效果,再利用次氯酸鈉氧化破壞發色團的原理,使COD總去除效率達34.61 %,真色色度總去除效率為100 %,可有效將合乎色度排放標準但仍帶有微量顏色的廢水達到透明澄清的水質。;Coagulation followed by chemical oxidation were employed to remove color. The effects of pH, reaction time, coagulant as well polymer dosage and NaOCl were examined. The results showed that removal efficiencies of chemical oxygen demand (COD) and color by coagulation were 9.14% and 62.33%, respectively. Decolorizaiton was 100% after addition of NaOCl. Coagulation can effectively remove resin and color particles, thus, it can reduce the color. NaOCl could then destruct the color functional groups and also oxidize come organic compounds. The removal efficiency of COD by NaOCl was 34.61%.
    Appears in Collections:[Executive Master of Environmental Engineering] Electronic Thesis & Dissertation

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