铅锌尾矿库地下水中Pb运移预测研究

Prediction Studies on Pb in Underground Water of Lead and Zinc Tailing Pond

以福建尤溪某铅锌尾矿库为例,运用Visual Modflow软件建立库区地下水溶质运移模型来研究污染物Pb的运移情况。结果表明,数值模拟反映尾矿库出水原水直接入渗含水层最不利情景时,污染物Pb对尤溪河及附近地下水影响甚小。而实际上,由于含水层上包气带的过滤、吸附等作用,尾矿库中Pb基本不会对库区附近地下水环境造成影响。

Taking a certain lead and zinc tailing pond in Youxi,Fujian Province as example,the paper uses Visual Modflow software to establish solute transport model of underground water in reservoir area to study pollutant Pb transportation situations. The results show that the worst situation is that the numerical simulation reflects the effluent water of tailing pond directly infiltrates the acquifer. At this time,the impact of pollutant Pb on Youxi River and nearby underground water is very small. But actually,because the aeration zone acquifer has the function of filtering and absorption,Pb in tailing pond generally will not influence nearby underground water environment of reservoir area.