178 Environmental Problems of Coal Gangue Air Storage in Pingdingshan Mining Area and Prevention and Remediation Countermeasures

In Pingdingshan mining area, air storage of large mount of coal gangue, produced in the course of coal excavating, has severely polluted and destroyed the local environment. The local environmental problems include land occupation, atmospheric pollution, water and soil pollution, deformation and destabilization of coal gangue dump, ecological environment deterioration, and so on. According to the component character of the coal gangue, the approaches to the coal gangue utilization, such as fuel substitute, building materials, chemical industry products, agriculture fertilizers, filling materials, were expressed in this paper. The measures of coal gangue development and utilization have double meanings of environmental protection and economic benefit in Pingdingshan mining area.