基于MODFLOW对开曼铝业大坪赤泥库地下水环境影响评价

Evaluation of Groundwater Environmental Impact in Daping Red Mud Reservoir of Cayman Aluminum Company Based on MODFLOW

通过Modflow建立开曼铝业大坪赤泥库周边地区地下水流模型和小尺度溶质运移模型。以铝离子作为预测因子,设定正常工况防渗状况良好和非正常工况发生局部泄漏两种情景进行模拟预测。结果表明:在设定的正常工况下,随着运移距离的增大,污染物浓度逐渐减小,防渗措施能起到较好的防渗作用;在非正常工况下,污染物对地下水质会造成一定影响,但影响面积较小,不会对周边的生产生活用水造成影响。

Establish a groundwater flow model and a small-scale solute transport model for the surrounding area of the Daping Red Mud Reservoir of Cayman Aluminum Industry through Modflow.Using aluminum ions as the predictive factor,simulate and predict two scenarios:good anti-seepage under normal working conditions and local leakage under abnormal working conditions.The results show that under the set normal working conditions,as the transportation distance increases,the concentration of pollutants gradually decreases,and anti-seepage measures can play a good anti-seepage role;Under abnormal working conditions,pollutants can have a certain impact on groundwater quality,but the impact area is small and will not affect the surrounding production and domestic water use.