A new plant in China's Shanxi province is converting coal waste, known as coal gangue, into construction-grade sand and gravel aggregates. This initiative is a significant step towards China's goal of achieving zero waste in its coal industry. The plant produces 1,000 tonnes of these materials daily, contributing to the comprehensive utilization of coal waste, which also includes processing fly ash for critical metals like lithium and gallium. AI
RANK_REASON The article discusses a new industrial process and its potential impact on waste management and resource utilization, which falls under research and development in industrial applications. [lever_c_demoted from research: ic=1 ai=0.1]
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