Environmental Problems and Strategies Caused by Coal Mining
The environmental problems about destruction and pollution of water resource, destruction and occupation of land resource, and air pollution in coal mining was described. Green mining technology in terms of the solution in environmental problems caused by coal mining was introduced. The main content of green mining includes reduction of rock waste, simultaneous extraction of coal and coal-bed methane, water-preservation in mining areas, coal mining to retard surface subsidence, and underground coal gasification. Green mining harmonizing with resources and environment is the fundamental method to solve environmental problems caused by coal mining. In order to develop green mining technology, the economic evaluation of green mining and the establishment of relevant laws need to be further strengthened.