The study of distribution and fate of nitrobenzene in a water/sediment microcosm
The study of distribution and fate of nitrobenzene in a water/sediment microcosm
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DOI：
10.1016/j.chemosphere.2007.05.065
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发表时间：
2007-11-01
期刊：
影响因子：
8.8
通讯作者：
Zhang, Li
中科院分区：
文献类型：
--
作者：
Zhu, Lingyan;Ma, Baoling;Zhang, Li
2005年11月，中国吉林省吉林石化公司的一个石化厂发生爆炸。附近的水体受到严重污染，大量有毒物质泄漏，这些有毒物质由苯、苯胺和硝基苯（NB）组成。为了解NB对松花江沿岸公众健康和生态系统的长期影响，有必要对其在环境中的归宿进行研究。在这项研究中，一个微观宇宙被用来模拟污染的水系统，并研究在河流水体中的迁移和归宿的NB。研究了NB的挥发性和生物降解性，并应用马尔可夫模型预测了NB在环境中的归趋。模拟结果与微观实验结果吻合得很好。该模型表明，在室温下，约500后，只有残留的NB在水和沉积物中。大部分NB（约82%）蒸发到空气中，18%被微生物降解。(c)2007年由Elsevier Ltd.出版
In November 2005, an explosion occurred at a petrochemical plant of the Jilin Petrochemical Corporation in Jilin Province, China. A nearby water body was seriously polluted with a large spill of toxic substances made up of a mixture of benzene, aniline, and nitrobenzene (NB). To understand the long term impact of NB on public health and ecosystem around the Songhua River, it was necessary to investigate its fate in the environment. In this study, a microcosm was used to mimic the polluted water system and to study the transport and fate of NB in the river water body. The volatility and biodegradation of NB was investigated and a Markov model was applied to predict the fate of NB in the environment. The simulated results matched very well with the results obtained from the microcosm experiment. The model indicated that at room temperature and after around 500 It, there was only residual NB in the water and sediment. Most of the NB (around 82%) evaporated into the air and 18% was degraded by microorganisms. (c) 2007 Published by Elsevier Ltd.