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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/25341


    標題: hexachlorobenzene dechlorination by indigenous sediment microorganisms
    作者: I-Ming Chen
    Wanit Wanitchapichat
    Teeranuch Jirakittayakorn
    Sukanda Sanohniti
    Wichidtra Sudjarid
    Chalermraj Wantawin
    Jarurat Voranisarakul
    Jin Anotai
    貢獻者: 環境資源管理系
    關鍵字: Bioremediation
    Chlorobenzene
    Dechlorination
    Methanogen
    Sulfate-reducing bacteria
    日期: 2010-05
    上傳時間: 2012-05-31 14:49:36 (UTC+8)
    摘要: Indigenous microbes from the sediments, whether contaminated with hexachlorobenzene (HCB) or not, could dechlorinate HCB effectively without any acclimation and supplemental nourishment. Temperature seriously affected the HCB-dechlorination: within the measured 15–45 °C span, the optimum range was between 30 and 35 °C. Sulfate-reducing bacteria (SRB), denitrifiers, and acetogens might not be directly involved in the HCB dechlorination. However, the SRB retarded subsequent dechlorination of pentachlorobenzene to tetra- and trichlorobenzenes. Some vancomycin-resistant gram-positive bacteria and methanogens were most likely to be the HCB-dechlorinators. The dechlorination followed the Michaelis–Menten behavior with the k′m and KHCB between 0.45–0.73 mg L−1 day−1 and 3.2–17.2 mg L−1, respectively. These findings suggest a potential HCB treatment and cleanup for wastewater and contaminated site
    關聯: Journal of Hazardous Materials 177(1-3):p.244-250
    Appears in Collections:[環境資源管理系(所)] 期刊論文

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