云南陆良危险废物填埋场污染物渗滤液迁移规律研究

The Research about Contaminant Leachate Transfer Law of a Hazardous Waste Landfill Site in Luliang, Yunnan

如何准确模拟工业危险废物填埋场污染物迁移规律关乎周边群众生产、生活安全,目前使用广泛的地下水数值模拟软件对于岩溶区孔隙-裂隙-管道三重介质模拟具有较大的困难,文章将场区内的岩溶管道概化为河流,使用GMS中Modflow、MT3D、排水沟模块对工业危险废物填埋场的水位、污染羽的分布情况进行模拟,模拟结果表明污染物在孔隙-裂隙-管道三重介质中,岩溶管道对于污染物的迁移有较大的影响,污染羽在岩溶管道处明显发生拖尾现象。

The accuracy of contamination simulation in hazardous landfill site is important for nearby people＇s safety of health and production. However, the usage of groundwater numeral simulation software has many difficulties in conduit-fissure-pore media. In this passage, karst conduits are summarized by drains and use Modflow, MT3 D, drain modules to simulate the field of landfill site. Then, get the distribution diagram of water heads and contaminant plumes. The result shows that the contamination in conduit-fissure-pore media is strongly influenced by karst conduit, the contaminant plumes have trailing phenomenon in the place of conduit.