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    Title: 以活性碳觸媒氧化法處理水溶液中氫之反應條件探討
    Effect of Reaction Conditions on the Efficiency of Hydroquinone Peroxidation by Using Activated Carbon Catalytic Wet Oxidation Process
    Authors: 王冠蓉
    Contributors: 環境工程與科學系
    Catalytic wet peroxidation
    Activated carbon
    Date: 2004
    Issue Date: 2009-06-01 11:41:41 (UTC+8)
    Abstract: 本研究目的為利用活性碳觸媒氧化法處理水中氫污染物,研究中顯示活性碳觸媒氧化法對氫有良好氧化效率,本研究並探討不同的氧化參數下之污染物之處理效率與氧化最適條件,活性碳觸媒以農業廢棄物椰殼為原料且以硫酸亞鐵為活化劑燒結而成,探討氧化反應之操作參數包括:活性碳添加量、氫濃度變化、雙氧水添加量、溫度變化、pH值變化等變因,由研究結果顯示於適當氧化條件下,氫污染水溶液在10分鐘內其有機碳之氧化效率(TOC)可達到90%以上,並發現以少許過量的雙氧水添加亦可得到良好的污染物去除效果,氧化反應中活性碳觸媒量越高則氫去除效率也會隨之增加,氧化反應於pH值在3~7之間污染物之去除效率較pH 9時為佳,氧化系統中反應溫度越高則最終氧化效率越好,因此以上各實驗參數所得到結果建議,於1000ppm的氫污染物水溶液以活性碳1g、0.1M的雙氧水添加劑量、溫度控制在85℃進行氧化降解作用,所得到最終有機碳的去除效果可以高達90%以上。
    The purpose of this investigation focus on the efficiency of hydroquinone oxidation by using activated carbon catalytic wet peroxidation process. The high efficiency and TOC removal can be achieved by suitable oxidation conditions in this process. The influent parameters of this peroxidation process were optimized by considering the TOC removal. The coconut carbon catalyst of this study were prepared and activated at high temperature with impregnated ferrous sulfides, which was prepared from the coconut shell and activated by CO2. The influencing parameters include, catalyst dosage, concentration of pollutant, dosage of hydrogen peroxide, reaction temperature and pH. Based on the results of this study, the TOC removal of hydroquinone was over 90% after 10 minutes reaction under a suitable condition. The TOC removal was almost proportional to both catalyst dosage and concentration of hydrogen peroxide. A higher activity of catalyst was found at low pH (pH 3-7) and low reaction rate was found at higher pH environment. The efficiency of TOC removal was promoted by the increase in reaction temperature in this catalytic peroxidation. Over 90% TOC removal of hydroquinone can be achieved by using 1g activated carbon catalyst, 0.1 M H2O2 at 85℃ with 1000 mg/L in aqueous solution.
    Appears in Collections:[Chna Nan Annual Bulletin] No.30 (2004)
    [Dept. of Environmental Engineering and Science (including master's program)] Periodical Articles
    [Dept. of Environmental Resources Management] Periodical Articles

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