五氯酚在污染沉积物泥浆固液两相中厌氧生物降解

应用生态学报 ›› 2005, Vol. 16 ›› Issue (4): 683-687.

五氯酚在污染沉积物泥浆固液两相中厌氧生物降解

唐全¹, 徐向阳¹, 朱有为²

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

收稿日期:2004-04-09 修回日期:2004-12-22 出版日期:2005-04-15 发布日期:2005-04-15
通讯作者: 徐向阳,E-mail:xuxy@zju.edu.cn
基金资助:
国家"863"计划资助项目(2002AA649200).

Anaerobic biodegradation of pentachlorophenol (PCP) in solid-liquid phase of contaminated sediment slurry

TANG Quan¹, XU Xiangyang¹, ZHU Youwei ²

1. Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China;
2. Station of Agro-Environmental Management of Zhejiang Province, Hangzhou 310004, China

Received:2004-04-09 Revised:2004-12-22 Online:2005-04-15 Published:2005-04-15

摘要/Abstract

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.

关键词: 厌氧降解, 颗粒污泥, 五氯酚, 液固两相, 泥浆

Abstract: The study showed that after inoculating 10 g穔g^-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穔g^-1穌^-1,while that of the control was only 4.4 mg穔g^-1穌^-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穔g^-1穌^-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.

Key words: Anaerobic degradation, Granular sludge, Pentachlorophenol, Solid-Liquid phase, Slurry

中图分类号:

X703.1

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.

TANG Quan, XU Xiangyang, ZHU Youwei . Anaerobic biodegradation of pentachlorophenol (PCP) in solid-liquid phase of contaminated sediment slurry[J]. Chinese Journal of Applied Ecology, 2005, 16(4): 683-687.

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