Modeling the transport and environmental fate of nitrobenzene in the Songhua River

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI:10.1109/GIWRM.2012.6349570

Shuangling Wang, Jinhui Jiang, Wanshun Zhang, Hong Peng, Xiaoqing Wang, Feifei Wang

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Abstract

Based on the combination of river water quality model and kinetic mechanism theory of nitrobenzene (NB) in multimedia aquatic ecosystem, a numerical model of transport and environmental fate of NB in river was developed. The proposed model is capable of simulating the physical transportation, and bio-chemical degradation processes of NB in river such as dispersion, volatilization, photolysis, biodegradation, adsorption and desorption. Photolysis and degradation relations and constants in this model were obtained by laboratory experiments, other parameters are obtained from modeling literature. Model calibration and validation were performed sequentially by comparing computed result with field data of hydrology and NB concentration. The model is applied to predict the transportation and fate of NB after the NB spill leak accident of Songhua River, the results indicated that the numerical model would be effective tools for emergency pollution accident analysis and water management.

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模拟松花江中硝基苯的迁移和环境命运

将河流水质模型与多媒体水生生态系统中硝基苯(NB)的动力学机理理论相结合，建立了硝基苯在河流中运移和环境命运的数值模型。该模型能够模拟铌在河流中的分散、挥发、光解、生物降解、吸附和解吸等物理迁移和生化降解过程。该模型的光解和降解关系及常数由室内实验获得，其他参数由建模文献获得。通过将计算结果与实测水文和铌浓度数据进行对比，依次进行模型标定和验证。将该模型应用于松花江铌泄漏事故后铌的运移和命运预测，结果表明该数值模型可作为应急污染事故分析和水管理的有效工具。

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2012 International Symposium on Geomatics for Integrated Water Resource Management

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