Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/1135
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    標題: 以生物淋溶法去除大型綜合污水處理廠污泥中重金屬之研究
    作者: 張錦松
    貢獻者: 環境工程與科學系
    關鍵字: Bioleaching;heavy metal
    sludge
    sulfur-oxidizing bacteria
    日期: 2003
    上傳時間: 2008-06-26 15:52:36 (UTC+8)
    出版者: 台南縣：嘉南藥理科技大學環境工程與科學系
    摘要: 本研究目的乃在探討以生物淋溶法去除大型污水處理廠三種污泥中重金屬銅、鋅之可能性。結果顯示，經生物淋溶後，硫氧化菌對濃縮池及消化槽污泥之氧化活性較大。濃縮池及消化槽污泥之pH, ORP 及硫酸鹽之變化及銅、鋅之去除率皆顯著比曬乾床污泥大。在經16天淋溶後，銅、鋅在濃縮池及消化槽污泥之主要鍵結態由與有機物鍵結態轉為與碳酸鹽鍵結態。
    To investigate the effect of bioleaching on the removal of Cu and Zn from varying kinds of sludge from large wastewater treatment plant for evaluate the possibility of treatment, three kinds of sludge (thickener, digester and drying-bed) were tested. Results indicate that oxidizing activity of sulfur-oxidizing bacteria to the sludge was greatest in the sludge of both thickener and digester. The changes of pH, ORP and sulfates in the sludge of both thickener and digester were faster than that in drying-bed sludge whereas the removal efficiencies of the total extractable Cu and Zn in the sludge of both thickener and digester were also significantly higher than that in drying-bed sludge. The mainly partitioning pool of Cu and Zn in both thickener and digester sludge after 16 days of bioleaching were switched to carbonates fraction.
    關聯: 計畫編號：CNEV9202
    顯示於類別:[環境工程與科學系(所)] 校內計畫

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