| 浅层地下水氯代烃污染天然生物降解的判别依据 |
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| 引用本文： | 何江涛,史敬华,崔卫华,刘菲,陈鸿汉.浅层地下水氯代烃污染天然生物降解的判别依据[J].地球科学,2004,29(3):357-362. |
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| 作者姓名： | 何江涛 史敬华 崔卫华 刘菲 陈鸿汉 |
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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;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： | 国家自然科学基金项目(No.40372109);海外青年学者合作研究基金项目(No.40228004). |
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| 摘 要： | 天然条件下氯代烃生物降解的判别，是确定氯代烃污染天然衰减恢复治理技术是否可以采用的关键，可为天然衰减恢复治理技术的应用提供技术支持．通过分析氯代烃生物降解的特性发现，地下水环境中氯代烃的生物降解，必然伴随有第一基质、电子受体、中间产物以及有关的一些间接性指标，在污染羽状体不同位置及污染羽状体内外产生明显变化，这些指标的变化均可以不同程度地指示氯代烃生物降解的产生．据此总结出氯代烃生物降解衰减的判别依据分别为电子受体、第一基质(能源和碳源)及降解中间产物三类指标。
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| 关 键 词： | 氯代烃 天然衰减 生物降解 判别依据 |
| 文章编号： | 1000-2383(2004)03-0357-06 |
Determining Criterions for Natural Biodegradation of Chlorinated Hydrocarbons in Shallow Groundwater |
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| HE Jiang-tao,SHI Jing-hua,CUI Wei-hua,LIU Fei,CHEN Hong-han School of Water Resources and Environment,China University of Geosciences,Beijing,China.Determining Criterions for Natural Biodegradation of Chlorinated Hydrocarbons in Shallow Groundwater[J].Earth Science-Journal of China University of Geosciences,2004,29(3):357-362. |
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| Authors: | HE Jiang-tao SHI Jing-hua CUI Wei-hua LIU Fei CHEN Hong-han School of Water Resources and Environment China University of Geosciences Beijing China |
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| Institution: | HE Jiang-tao,SHI Jing-hua,CUI Wei-hua,LIU Fei,CHEN Hong-han School of Water Resources and Environment,China University of Geosciences,Beijing100083,China |
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| Abstract: | Natural biodegradation is one of the important processes resulting in the decrease of chlorinated pollutants in environments. Identification of the occurrence of natural biodegradation is thus the key issue to evaluate the practicability of the natural attenuation of these compounds. Through the analysis of the characteristics of biodegradation, we found that, the biodegradation of chlorinated compounds in groundwater environments always leads to the visible change of electron acceptors, primary substances, intermediate products, and other indirect indexes. The spatial variation of these substances around the different locations of the polluted plumes is proposed to be a consequence of biodegradation of chlorinated compounds. On this basis, this paper summarized the determining criterions for the evaluation of biodegradation of chlorinated hydrocarbons in groundwater under natural conditions, including electron acceptors, primary substances and intermediate products. |
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| Keywords: | chlorinated solvent natural attenuation biodegradation determining criterion |
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