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现代地质 ›› 2007, Vol. 21 ›› Issue (3): 578-583.

• 环境地质 • 上一篇    下一篇

硝基苯在傍河地下水源地迁移转化的数值模拟研究

张文静1,2,3,林学钰1,2,3,苏小四1,2,3   

  1. 1吉林大学 环境与资源学院,吉林 长春130026;2吉林大学 水资源与环境研究所,吉林 长春130026;
    3教育部城市环境与可持续发展联合研究中心 吉林大学分中心,吉林 长春130026
  • 收稿日期:2006-10-27 修回日期:2007-06-05 出版日期:2007-03-20 发布日期:2007-03-20
  • 通讯作者: 苏小四,男,副教授,1971年出生,水文及水资源专业,主要从事同位素水文地球化学和水资源评价研究。
  • 作者简介:张文静,女,博士,1980年出生,水文及水资源专业,主要从事水环境模拟及污染防治研究。 Email:zhangwenjing80@126.com。
  • 基金资助:

    教育部博士点基金项目(20030027020);国土资源部水资源与水环境重点实验室(原地质矿产部水资源评价与管理系列模型开放研究实验室)项目

Numerical Simulation on Migration and Transformation of Nitrobenzene in Riverside Groundwater Field

ZHANG Wen-jing1,2,3,LIN Xue-yu1,2,3,SU Xiao-si1,2,3   

  1. 1College of Environment and Resources, Jilin University,Changchun,Jilin130026,China;2Institute of Water Resources and
    Environment, Jilin University,Changchun,Jilin130026,China;3Jilin University Branch of Joint Research Center
    of Urban Environment and Sustainable Development, Ministry of Education, Changchun,Jilin130026,China
  • Received:2006-10-27 Revised:2007-06-05 Online:2007-03-20 Published:2007-03-20

摘要:

通过开展室内模拟实验研究,探讨硝基苯在傍河水源地的迁移规律、转化机理及其影响因素。在实验的基础上,构建描述硝基苯在傍河地下水源地迁移转化的数学模型。数值模拟结果表明:淤泥介质对硝基苯的吸附能力相对较高,硝基苯在淤泥中的线性吸附系数为0.526 cm3/g,在砂砾中的线性吸附系数为0.123 cm3/g;硝基苯在淤泥介质中的生物降解作用也明显大于在砂砾介质中,其在淤泥介质中的生物降解速率常数可达0.043 h-1,而在砂砾介质中仅为0.002 h-1。本次对室内硝基苯迁移转化实验的数值模拟效果较为理想,模拟结果对硝基苯在含水层中的迁移过程和转化规律进行了科学合理的量化描述,可将该模型进一步用于野外硝基苯迁移转化的模拟预测中。

关键词: 硝基苯, 傍河地下水源地, 迁移转化, 数值模拟

Abstract:

Based on simulated experiment research, this paper discusses the main rules and effect factors of nitrobenzene's transport and fate in riverside groundwater field. And based on the data of the simulated experiment, the numerical model of nitrobenzene's migration and transformation in riverside groundwater field has been built. The simulated result has indicated that the adsorption capability of nitrobenzene transporting in silt medium is better than that in sand medium. The adsorption coefficients of silt medium and sand medium are 0.526 cm3/g and 0.123 cm3/g respectively. Moreover, nitrobenzene's biodegradation rate constants of silt medium and sand medium  are 0.043 h-1 and 0.002 h-1 respectively. This study has indicated that the numerical simulated result of experiment is better, then it can be used in field simulation and forecast in the near further.

Key words: nitrobenzene, riverside groundwater field, migration and transformation, numerical simulation

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