色连矿煤矸石浸泡与淋溶物质释放特征研究

Study on Characteristics of Coal Gangue Soaking and Leaching Material Release in Selian Mining Area of Ordos City

本研究通过煤矸石静态浸泡实验及间歇式淋滤模拟实验,研究了不同条件下煤矸石污染组分的释放特征。通过研究可知煤矿底部矸石与颜色黑灰的矸石污染物释放量较其他矸石大且首要污染物成分为氟离子。间歇淋溶实验证实了煤矸石堆积场地在降雨作用下污染物释放呈现波动性,煤矿矸石堆应针对污染物释放周期性特征做好污染物处理工作。

In this study,the release characteristics of coal gangue polluted components under different conditions were studied through static soaking experiment and intermittent leaching simulation experiment.Through the study,it can be seen that the pollutant release amount of gangue at the bottom of coal mine and gangue with black ash is larger than that of other gangue and the primary pollutant component is fluorine ion.Intermittent leaching experiments have proved that the pollutant release of coal gangue piles is fluctuating under the action of rainfall.The coal gangue piles should deal with the pollutants according to the periodic characteristics of pollutant release.