天然地下水环境四氯乙烯的强化生物降解

李烨; 刘菲; 鲁安怀

Volume 34 Issue 5

Sep. 2009

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LI Ye, LIU Fei, LU An-huai, 2009. Enhanced Biodegradation Potential of Tetrachloroethylene under Natural Groundwater Environment. Earth Science, 34(5): 870-876.

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LI Ye, LIU Fei, LU An-huai, 2009. Enhanced Biodegradation Potential of Tetrachloroethylene under Natural Groundwater Environment. Earth Science, 34(5): 870-876.

LI Ye, LIU Fei, LU An-huai, 2009. Enhanced Biodegradation Potential of Tetrachloroethylene under Natural Groundwater Environment. Earth Science, 34(5): 870-876.

Citation:

LI Ye, LIU Fei, LU An-huai, 2009. Enhanced Biodegradation Potential of Tetrachloroethylene under Natural Groundwater Environment. Earth Science, 34(5): 870-876.

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Enhanced Biodegradation Potential of Tetrachloroethylene under Natural Groundwater Environment

LI Ye^{1, 2
,},
LIU Fei^{2
,
,},
LU An-huai¹

1.
School of Geoscience and Space Science, Peking University, Beijing 100871, China
2.
Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences, Beijing 100083, China

Received Date: 2008-12-20
Publish Date: 2009-09-25

Abstract

Abstract

In order to investigate tetrachoroethylene (PCE) biodegradation potential by some enhanced factors, the experiment was carried out under natural groundwater condition by batch experiment.Microorganism cultured in the laboratory was added to the microcosm with acetic acid as electron donor and yeast powder as nitrogen source.Experimental results indicate that PCE could be dechlorinated to trichloroethylene (TCE) and dichloroethylene (DCEs) under 20 ℃.TCE was the primary dehalogenation product, and small amounts of dichloroethylenes (DCEs) were also detected.No significant further DCEs degradation was detected.The degradation rate of PCE was 0.184 8 d-1, and the half life was 3.75 d.Under 12 ℃ condition, PCE biodegradation could occur; however, the terminal product was only TCE without DCEs, and degradation rate of PCE was 0.076 1 d-1, which was relatively slow compared to that under 20 ℃.
- tetrachloroethylene,
- enhanced biodegradation,
- natural groundwater

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References(43)

References

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