Fermentative biodegradability of phenols in aquifer-derived microcosms

机译：含水层缩微中酚类的发酵生物降解性

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Increasing attention has been given to anaerobic biodegradation of organic pollutants in contaminated subsurface sediments and groundwater. Fermentation, as a strictly anaerobic process without any external electron acceptor participating, however, has been ignored. The sequential anaerobic biodegradation of phenol from nitrate- through sulfate- reduction to methane production was investigated based on laboratory microcosm experiments under a simulated condition of contaminated groundwater. A highest phenolic degradation rate was achieved during the methanogenic process. Hydrogen and methane were found accumulated in the headspace of microcosms, even from highly contaminated groundwater and sediments. It suggested fermentation process could play an important role in natural attenuation of organic pollutants in groundwater and sediments.

机译：人们已越来越重视对污染的地下沉积物和地下水中有机污染物的厌氧生物降解。然而，没有任何外部电子受体参与的严格厌氧发酵过程却被忽略了。在模拟的地下水污染条件下，基于实验室缩影实验，研究了苯酚从硝酸盐到硫酸盐的连续还原厌氧降解为甲烷的过程。在产甲烷过程中，苯酚降解率最高。氢气和甲烷被发现累积在微观空间的顶空，甚至来自高度污染的地下水和沉积物。这表明发酵过程可能在地下水和沉积物中有机污染物的自然衰减中起重要作用。

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来源
《International Conference on Groundwater Research, Jun 6-8, 2000, Copenhagen, Denmark》|2000年|p.347-348|共2页
会议地点 Copenhagen Denmark
作者
Y. Wu; S.A. Banwart; S.F. Thornton; D.N. Lerner;
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作者单位

Groundwater Protection and Restoration Group, Department of Civil and Structural Engineering, University of Sheffield, Sheffield, United Kingdom;

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会议组织
原文格式 PDF
正文语种 eng
中图分类 P6;
关键词
fermentative degradation; groundwater; microcosm; phenolic compounds;

机译：发酵降解地下水;缩影酚类化合物;

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Fermentative biodegradability of phenols in aquifer-derived microcosms

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