| Coalmine waste is a kind of industrial solid waste discharged in the coal mining. A huge number of waste accumulations can form Waste Dump. The coal-bearing area of Linfen city makes up 18% of Shanxi, and its proven coal reserves are 34.809 billion tons, accounting for 13.48% of the province. However, waste accumulation is huge in Linfen, and coalmine waste has striking influence on ecological environment. Not only do they occupy lots of land, but also destroy the landscape and cause sand storms in windy weather. What's worse, there are many toxic elements in coalmine waste, if rained, dissolvable elements may migrate into the soil and water, influencing the earth, water and vegetation, affecting surrounding earth and groundwater. Gangue has become a solid, liquid and gas source of pollution in urgent need of treatment. The main treatment of coalmine in Linfen city is accumulation at present. A comprehensive utilization has no development in place, such as reasonable landfill, manufacturing cement, building materials, road construction, fuel power generation, mining and associated minerals, production of organic fertilizers, etc. How to consume a lot of coalmine waste so as to be in accordance with the requirements of the development of circular economy and realize sustainable development of mining production? This paper takes Huozhou Xinzhi Coalmine in Linfen city as an example, analyses its coalmine waste's physical and chemical properties, composition characteristics as well as the main rock composition, talks about its ecological disposal and comprehensive utilization experimentally, puts forward a reasonable method of landfill and comprehensive utilization of coal gangue in some of the best methods, and opens up a new direction for the ecological disposal and comprehensive utilization of Linfen's coalmine waste.The main content of the thesis is as follows:(1) From the point of time, this paper discusses researches on ecological disposal and comprehensive utilization of coal gangue home and abroad. These researches develops significantly with the rapid development of coalmine industry and the requirements of sustainable development in order to coordinate the contraction between environmental protection and economic development.(2) From the view of theoretical analysis, this paper explores the theoretical bases of the ecological disposal and comprehensive utilization of coal gangue, such as the theory of circular economy, clean production theory, landscape ecology theory. Based on these analyses, it comes up with the technical system and constructs the analytical procedures of coalmine waste's ecological disposal and comprehensive utilization.(3) From the perspective of empirical research, this paper takes Linfen's Huozhou Xinzhi Coalmine as an example. Through data analysis, field observations, GPS positioning, on-site interviews, landscape photography, quantitative terms, professional graphics, the paper studies empirically and proposes clean development and ecological control measures, which have great significance in coordinating the conflict between environment and economy and thus achieving regional sustainable development. In order to reflect the regional characteristics of Linfen City, make an environmental and economical operation and have a good match of theory and practice, this paper suggests the construction of various coal mines in the future as an important content and control measures.(4) Finally, as a conclusion, this paper summarizes the main thesis work and some basic conclusions, pointing out its shortcomings and some relative further explorations.
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