摘要
淋溶是有害微量元素从煤矸石中析出后污染环境的重要途径。本文在对淮南潘谢矿区煤矸石浸泡实验的基础上,研究了在雨水pH值波动范围内有害微量元素从煤矸石中淋溶析出的变化规律,利用计算最大溶出量和老矸石山下土壤与清洁区土壤中微量元素对照的方法,探讨了煤矸石的淋溶对水环境及周围土壤的影响。潘谢矿区煤矸石的露天堆放、用作填充材料对地表水、地下水及土壤不会造成显著影响,宜推广煤矸石用做填充材料,以变废为宝,节约土地资源。
Leaching is one of the important ways for hazardous trace elements in coal spoils to cause environmental pollution. Based on the immersing experiments on coal-spoils from the Pansan Mine and the Xieqiao Mine, this study deals with the leaching behavior of trace elements. According to the calculation of maximal trace element emission and comparison of clean soil with contaminated soil, the environmental impacts of coal spoils from the Panxie mining district on water and soil were evaluated. More coal spoils in the areas studied should be used as roadbed and padding materials.
出处
《地球与环境》
CAS
CSCD
2004年第1期55-59,共5页
Earth and Environment
基金
国家自然科学重点基金(40133010)
