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煤矸石是挖掘煤炭时分离出的杂质。目前我国煤矸石年排放量7000万吨左右,历年来矸石堆存量已超过15.5亿吨,估计占地12万亩,山东现存煤矸石0.8亿吨,占地8000亩。矸石堆放排出大量的有害气体和烟尘,严重污染环境,威胁着矿区人们的身体健康。如山东省新汶矿区空气中总悬浮微粒(T.S.P)最高浓度值为 2.90mg/m~3,超过国家三级标准 2.33倍,二
Gangue is the impurity that is separated when digging coal. At present, the annual discharge of coal gangue in China is about 70 million tons. Over the years, the stock of rock waste has exceeded 1.55 billion tons, with an estimated area of 120,000 mu. There are 80 million tons of coal gangues in Shandong and an area of 8,000 mu. Waste piles discharge a large number of harmful gases and fumes, seriously pollute the environment, threatening the health of people in the mining area. For example, the maximum concentration of total suspended particulates (T.S.P) in the air of Xinwen mining area in Shandong Province was 2.90mg / m3, which was 2.33 times higher than the national third-grade standard,