| 不同共代谢基质下四氯乙烯厌氧生物降解研究 |
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| 引用本文： | 李惠娣,杨琦,尚海涛.不同共代谢基质下四氯乙烯厌氧生物降解研究[J].环境污染与防治,2004,26(5):326-328,354. |
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| 作者姓名： | 李惠娣 杨琦 尚海涛 |
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| 作者单位： | 中国地质大学水资源与环境学院,北京,100083;中国地质大学水资源与环境学院,北京,100083;中国地质大学水资源与环境学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目 ( No.40 10 2 0 2 7) |
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| 摘 要： | 分别用葡萄糖、乳酸盐和醋酸盐作为驯化好的厌氧污泥的共代谢基质 ,对四氯乙烯 ( PCE)的降解进行研究。结果表明 ,PCE是通过还原脱氯发生生物降解的。实验的回归结果表明 ,反应均符合一级动力学方程 ;反应速率常数的大小依次为 k乳酸盐 >k葡萄糖 >k醋酸盐 ;以乳酸盐作为共代谢基质时 ,PCE的降解速率较快 ,在实验条件下乳酸盐是最合适的共代谢基质
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| 关 键 词： | 四氯乙烯(PCE) 共代谢基质 生物降解 反应速率常数 |
Study on anaerobic biodegradation of tetrachloroethylene with different co-metabolism substrates |
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| Li Huidi,Yang Qi,Shang Haitao.Study on anaerobic biodegradation of tetrachloroethylene with different co-metabolism substrates[J].Environmental Pollution & Control,2004,26(5):326-328,354. |
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| Authors: | Li Huidi Yang Qi Shang Haitao |
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| Abstract: | PCE degradation was studied by acclimated anaerobic sludge with glucose, acetate and lactate as cometabolism substrates. Results show that PCE is degraded by reductive dechlorination. Regression results show that PCE degradation meets first order reaction kinetics, and reaction rate constants is: \%k\%_(lactate)>\%k\%_(glucose)>\%k\%_(acetate). It shows that PCE degradation rate is rapid with lactate as co-metabolism substrate, and lactate is suitable co-metabolism substrate in the experiment. |
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| Keywords: | Tetrachloroethylene(PCE)Co-metabolism substrateBiodegradationReaction rate constant |
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