Analyzing Pathways and Suggestions for Comprehensive Utilisation of Coal Gangue in Guizhou Province
Coal gangue is an associated mineral produced in the process of coal mine tunneling,coal mining and washing.Because it is not effectively utilized,it is often piled up in open piles around coal mine industrial sites.A large amount of coal gangue stacked in the open not only occupies land resources,but also causes pollution to the surrounding ecological environment through rainwater leaching,spontaneous combustion and other ways.This paper investigates the composition of coal gangue in different regions of Guizhou Province,analyzes the feasibility of comprehensive utilization pathways such as power generation,extraction of elements,building materials and ecological restoration of coal gangue in view of the nature of coal gangue and puts forward six suggestions.It is of great significance to promote the comprehensive utilization of coal gangue in Guizhou Province and realize the green and high-quality development of coal industry.
properties of ganguehierarchical and qualitativecomprehensive utilisationhigh-quality development
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