| 五氯酚在污染沉积物泥浆固液两相中厌氧生物降解 |
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| 引用本文： | 唐全,徐向阳,朱有为. 五氯酚在污染沉积物泥浆固液两相中厌氧生物降解[J]. 应用生态学报, 2005, 16(4): 683-687 |
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| 作者姓名： | 唐全 徐向阳 朱有为 |
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| 作者单位： | 1. 浙江大学环境工程系, 杭州 310029;2. 浙江省农业厅农业环保站, 杭州 310004 |
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| 基金项目： | 国家自然科学基金资助项目 (3 0 0 70 0 2 6) |
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| 摘 要： | 研究了污染沉积物泥浆液、固两相五氯酚(PCP)厌氧生物降解.结果表明,投加10g·kg-1厌氧颗粒污泥,经31d处理泥浆液、固两相PCP降解率达98.9%,平均降解速率达到80mg·kg-1·d-1,对照处理平均降解速率仅为4.4mg·kg-1·d-1,颗粒污泥生物强化作用明显.作为泥浆修复过程的调控因子,有机溶剂、共基质和表面活性剂对PCP降解效应不同,投加乙醇,可提高PCP解吸和降解速率,4d内两相PCP降解速率达到54.3mg·kg-1·d-1;而投加共基质和非离子表面活性剂乙二醇丁醚后,液、固两相PCP降解均出现迟滞,两者均不同程度地抑制PCP降解.
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| 关 键 词： | 厌氧降解 颗粒污泥 五氯酚 液固两相 泥浆 |
| 文章编号： | 1001-9332(2005)04-0683-05 |
| 收稿时间： | 2004-05-02 |
| 修稿时间： | 2004-05-02 |
Anaerobic biodegradation of pentachlorophenol (PCP) in solid-liquid phase of contaminated sediment slurry |
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| TANG Quan,XU Xiangyang,ZHU Youwei. Anaerobic biodegradation of pentachlorophenol (PCP) in solid-liquid phase of contaminated sediment slurry[J]. The journal of applied ecology, 2005, 16(4): 683-687 |
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| Authors: | TANG Quan XU Xiangyang ZHU Youwei |
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| Affiliation: | 1. Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China;2. Station of Agro-Environmental Management of Zhejiang Province, Hangzhou 310004, China |
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| Abstract: | The study showed that after inoculating 10 g x kg(-1) anaerobic dechlorinated granular sludge (ADGS) for 31 days, the biodegradation rate of pentachlorophenol (PCP) in solid-liquid phase of contaminated sediment slurry was up to 98.9%, with an average of 8.0 mg x kg(-1) x d(-1), while that of the control was only 4.4 mg x kg(-1) x d(-1). As the regulation factors in slurry remediation, organic solvent, co-substrate and surfactant had different effects on PCP degradation. The addition of ethanol could enhance the desorption and degradation of PCP, the degradation rate being up to 54.3 mg x kg(-1) d(-1) within 4 days, while the addition of co-substrate and non-ionic surfactant EGME (ethylene glycol monobutyl-ether) inhibited the PCP degradation in solid-liquid phase of slurry. |
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| Keywords: | Anaerobic degradation Granular sludge Pentachlorophenol Solid-Liquid phase Slurry |
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