煤矸石淋滤液对地下水污染的数值仿真研究

针对新邱露天煤矿矸石山附近于家沟地区地下水污染的实际情况，分析了矸石山淋滤液在地下水中的、迁移规律。在综合考虑对流、弥散、吸附解吸及存在源汇项的条件下建立煤矸石淋滤液在地下水中迁移的动力学数学模型，采用有限差分的方法对模型进行了数值求解，对不同污染强度、不同时间条件下地下水系统中淋滤液动态变化规律进行了数值仿真，预测了污染物浓度的时空分布特征，并结合实际水质监测数据对模拟结果进行了分析。模拟结果表明，污染物浓度变化趋势及模拟值与监测结果基本吻合，从而验证了模型的可靠性和实用性，为地下水污染的治理提供依据。

Numerical Imitation for Coal Gangue Leachate Transport in Groundwater System

The gangue mountain in Xin Qiu Strip mine of Fu Xin city was studied for the pollution of groundwater.The meachanism of gangue mountain leachate transport in the aquifer was analyzed.On the basis of considering flow, diffusion, absorption and fountain, a dynamic model was developed for simulating coal gangue leachate transport in groundwater system. Solutions to the model were accomplished by finite difference,which predicted the temporal and spatial distribution features of contaminant concentration.The supervised data of water quality was used to provide a quantitative verification of the model.The model simulations were compared to the measured data, which are reasonably agree with model simulation.The simulation model provides scientific evidence for pollutions control of groundwater.