Abstract：This paper briefly introduced the basic theory framework of Landsim with especial focus on its way to conceptualize long-term performances of cap layer, liner layer and drainage pipe. The infiltration module of HELP model was introduced to couple with Landsim to improve its accuracy of infiltration calculation. This coupled model was then applied to assess the long-term leaking risk of a hazardous waste landfill in the Southwest China. The measured concentration of target contaminant falls in the range of predicted value. The groundwater pollution risk caused by the leachate leakage was ignorable in short-term(1~3year) with the pollution probability smaller than or equal to 0.33, but large in long-term (34year) with the pollution probability larger than or equal to 0.68. The case study suggest that insetting the national standards and guidelines about the design and operation of landfill, the long-term change of cap layer, liner layer and drainage pipe should be taken into consideration to reduce the risk of leachate leakage.
徐亚, 颜湘华, 董路, 能昌信, 刘玉强, 黄启飞. 基于Landsim的填埋场长期渗漏的污染风险评价[J]. 中国环境科学, 2014, 34(5): 1355-1360.
XU Ya, YAN Xiang-Hua, DONG Lu, NENG Chang-Xin, LIU Yu-Qiang, HUANG Qi-Fei. Pollution risk assessment of long-term leaking in landfill-based on the Landsim model.. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(5): 1355-1360.
