Comprehensive utilization and environmental risks of coal gangue: A ...
网页2019年12月1日 · The amount of coal gangue, a by-product of coal mining and washing, is rapidly increasing with the growing trend of energy consumption. The accumulated coal gangue without appropriate utilization has resulted in a squander of resources, waste disposal and environmental pollution issues.
Characteristics of Coal Gangue and Present Situation and …
网页2024年6月4日 · Coal gangue is a kind of black-gray rock with lower carbon content and harder than coal in the process of coal formation. It is produced in the process of coal bed deposition in the coal-accumulating basin.
Opportunities, challenges and modification methods of coal gangue …
网页2024年9月7日 · Coal gangue is a complex industrial solid waste mixed with organic compounds, inorganic compounds and minerals (Fabiańska et al. 2013).Its major chemical compositions are SiO 2, Al 2 O 3 and Fe 2 O 3, with traces of CaO, P 2 O 5, MgO and MnO 2.The chemical composition of coal gangue from various sources and its comparison with soil reference values were tabulated in Table 1.
Representative coal gangue in China: Physical and chemical …
网页2024年2月1日 · Based on the source and distribution of coal gangue (CG) in China, this study introduces the current situation of CG storage in China and the problems existing in the process of CG utilization.
Comprehensive utilization and environmental risks of coal gangue: A ...
网页2019年12月1日 · Coal gangue, a solid waste generated during coal mining and washing, accounts for approximately 10%–15% of the total coal production. The accumulative amount of coal gangue is largely increasing associated with coal mining activities, becoming one of the largest industrial residues.
Low-carbon utilization of coal gangue under the carbon …
网页2023年5月25日 · The treatment and utilization of coal gangue, one of the main solid wastes produced during coal mining, are of great significance in environmental protection and resource development. In the contemporary context of the carbon neutralization strategy, due to the property of the carbon in coal gangue, it is necessary to …
The Sustainable Utilization of Coal Gangue in Geotechnical and ...
网页2022年4月6日 · Among coal mining-related wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining. A thorough understanding of environmental concerns associated with the current model of CG utilization and potential future application is …
Excess sulfur and Fe elements drive changes in soil and ... - Nature
网页2020年6月26日 · The results suggested that coal gangue significantly influences soil S, pH and plant species after 8 years of natural recovery. The CK-far plots contained relatively low soil sulfur content,...
Review of Coal Gangue Characteristics and Ecological Restoration ...
网页2021年5月1日 · In this paper, the physical, chemical and pollution characteristics of coal gangue are summarized, and the ecological restoration mode is divided into two modes: traditional "end treatment" and "treatment while piling". The action mechanism, advantages and disadvantages and application scope of various ecological restoration technologies ...
Research Progress on Comprehensive Utilization of Coal Gangue
网页Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and other problems. Starting from the resource characteristics of coal gangue, this paper systematically discusses the ways and research status of coal gangue …
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