煤矸石堆积如山，难以利用且污染环境。
The enormous coal gangue is difficult to use and causes environment pollution.
通过煤矸石的综合利用，减轻煤矸石堆存对环境的不利影响。
Through above way, can reduce the environmental adverse effect of the storing up of gangue.
莱芜煤田矸石堆附近土壤中的硫、氟、汞等成份比对照点偏高，但低于山东省土壤成份背景值。
The compositions of S, F, Hg in soil near gangue pile in Laiwu coal field are higher than contrast point, but lower than background value of soil composition in Shandong Province.
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