Zhu Lingyan, Ma Baoling, Zhang Lei, Zhang Li
College of Environmental Science and Engineering, Nankai University, Weijin Road 94, Tianjin 30071, China.
Chemosphere. 2007 Nov;69(10):1579-85. doi: 10.1016/j.chemosphere.2007.05.065. Epub 2007 Aug 13.
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 h, 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.
2005年11月，中国吉林省吉林石化公司的一家石化厂发生爆炸。附近水体因苯、苯胺和硝基苯（NB）混合物的大量泄漏而受到严重污染。为了解NB对松花江周边公众健康和生态系统的长期影响，有必要调查其在环境中的归宿。在本研究中，使用微观世界模拟受污染的水系统，研究NB在河流水体中的迁移和归宿。研究了NB的挥发性和生物降解，并应用马尔可夫模型预测NB在环境中的归宿。模拟结果与微观世界实验结果非常吻合。该模型表明，在室温下且大约500小时后，水和沉积物中仅残留NB。大部分NB（约82%）蒸发到空气中，18%被微生物降解。
