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China's Coal Waste Stockpile Reaches Staggering 3 Billion Tons, Unlocking Potential for Sustainable Utilization

Coal waste classification and approaches to utilization in China
Xu Zesheng, Qiaowen Yang, Wang Zuna

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Coal waste in China is increasing due to coal production, with 3 billion tons stockpiled by 1996. Proper classification is crucial for effective treatment and utilization. The main goal is to use coal waste based on its mineral content, improve utilization methods, reduce stockpiling, and develop new utilization approaches. Six main classes of coal waste are identified based on their source and stockpiled situation.