垃圾渗滤液对地下水环境影响的数值模拟预测

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英文篇名：Application of Numerical Simulation to Evaluate the Impact of Leachate on the Groundwater Environment 作者：王浪 ; 张曼 英文作者：WANG Lang;ZHANG Man;Anhui Research Institute of Chemical Industry;College of Chemistry and Chemical Engineering,Hefei University of Technology; 关键词：垃圾渗滤液 ; 数值模拟 ; 地下水污染 ; GMS软件 英文关键词：leachate;;numerical simulation;;groundwater pollution;;GMS software 中文刊名：安徽化工 英文刊名：Anhui Chemical Industry 机构：安徽省化工研究院;合肥工业大学化学与化工学院; 出版日期：2019-08-15 出版单位：安徽化工 年：2019 期：04 语种：中文; 页：94-98 页数：5 CN：34-1114/TQ ISSN：1008-553X 分类号：X703;X523

摘要

垃圾渗滤液极易造成地下水污染,严重威胁工农用水安全。以某垃圾填埋场为研究对象,利用GMS软件的MODFLOW和MT3D模块建立了该垃圾填埋场区域地下水流场和溶质运移数值模型,以COD和氨氮作为预测因子,预测垃圾填埋场100 d和1 000 d后地下含水层中的污染物迁移情况。结果表明:100 d后,评价区污染物COD的最大迁移距离约1 200 m,地下水受到污染的总面积为50810 m2;1 000 d后COD的最大迁移距离约2 600 m,地下水受到污染的总面积为268 160 m2。100 d后污染物氨氮的最大迁移距离约1 500 m,地下水受到污染的总面积为63 020 m2;1 000 d后氨氮最大迁移距离约2 650 m,地下水受到污染的总面积为274 520 m2。该研究可为渗滤液污染地下水的防治提供理论参考。
        Landfill leachate is possible to cause groundwater pollution, which seriously threatens industrial water and agricultural water. Taking a landfill in Sichuan as the research object, the numerical model of groundwater flow field and solute transport in the landfill and its surrounding area was established by using MODFLOW and MT3 D modules of GMS software, The COD and ammonia nitrogen migration.in the underground aquifer after 100 d and 1 000 d landfill was predicted.The results show that after 100 d, the maximum migration distance of COD in the study area is about 1 200 m, the total area of groundwater pollution is 50 810 m2, the maximum migration distance of ammonia nitrogen is about 1 500 m, the total area of groundwater pollution is 63 020 m2, and the maximum migration distance of COD after 1 000 d is about 2 600 m. The total area of groundwater contaminated is 268 160 m2, the maximum migration distance of ammonia nitrogen is about 2 650 m, and the total area of groundwater contaminated is 274 520 m2. This study can provide a theoretical reference for the prevention and control of leachate contaminated groundwater.

引文

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