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新汶矿业集团是年产煤炭 1 0 Mt以上的国有特大型企业 ,生产过程中每年排放煤矸石约2 .5Mt,目前矸石累计堆放量 53.0 0 Mt,侵占耕地 93ha。而且煤矸石中的可燃物质由于长期露天堆放发生自燃 ,产生多种有害气体 ,成为当地大气污染的主要污染源。近年来 ,集团公司通过开发煤矸石
Xinwen Mining Group is an annual large-scale state-owned large-scale enterprise with a capacity of over 10 Mt of coal. The annual discharge of coal gangue is about 2.5Mt during the production process. At present, the cumulative amount of waste rock is 53.0 Mt and 93ha are invaded. Moreover, combustible substances in coal gangue spontaneously combust due to long-term piling up, generating a variety of harmful gases and becoming the main source of local air pollution. In recent years, the group company through the development of coal gangue