岩溶区某磷石膏堆场地下水渗流与污染物运移数值模拟Numerical Simulation of Groundwater Seepage and Pollutant Migration in a Karst Area Phosphogypsum Dump
张科正,陈舟,陈长生,赵贵清
摘要(Abstract):
针对岩溶区某磷石膏堆放场渗漏污染问题进行研究,运用地下水数值模拟软件Groundwater Modeling System(GMS)模拟了岩溶区地下水流场及污染物(磷)在岩溶含水层的运移情况,确定污染物的浓度分布。结果表明:软件的河流模块(River)能较好的模拟岩溶区的岩溶管道渗流;堆场至发财洞方向为渗漏主方向,老落凼岩溶管道与摆郎发财洞岩溶管道为主要渗漏通道,形成堆场至发财洞污染物浓度梯次递减分布的规律;预测持续渗漏情况下,10 a后发财洞处总磷浓度可达400 mg/L左右。本研究可为堆场的污染防治提供参考,为岩溶区地下水污染治理提供一定的研究基础。
关键词(KeyWords): 岩溶区;磷石膏堆场;渗漏;数值模拟
基金项目(Foundation): 国家自然科学基金项目(41402197)
作者(Author): 张科正,陈舟,陈长生,赵贵清
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