“无废城市”建设的内蒙古实践

Group 1: Industry Overview - Inner Mongolia is a significant energy and strategic resource base in China, with the largest proven coal reserves in the country, accounting for one-fourth of the national reserves, and the highest rare earth reserves [2][11] - In 2024, Inner Mongolia's coal production is expected to reach 1.29 billion tons, fulfilling a supply task of 830 million tons, which constitutes 34.5% of the national total [2] - The region is also facing challenges related to the large stockpile of coal-based solid waste, such as coal gangue and fly ash, which pose environmental risks [2] Group 2: Policy and Governance - The Inner Mongolia Autonomous Region has implemented various policies to support the construction of "waste-free cities," including regulations on solid waste pollution prevention and comprehensive ecological restoration plans [3][4] - The Ministry of Ecology and Environment has initiated a plan to promote the construction of approximately 100 "waste-free cities" during the 14th Five-Year Plan period, with Hohhot, Baotou, and Ordos included in the list [3] Group 3: Technological Innovation - The transformation of fly ash, a byproduct of the coal industry, into strategic resources like alumina has been achieved through collaboration between companies and universities, establishing a model project for utilizing non-bauxite ores [5] - Inner Mongolia Huineng Silicon-Aluminum New Materials Technology Co., Ltd. is set to produce 70,000 tons of casting aluminum-silicon and silicon-aluminum-titanium alloys annually, processing 200,000 tons of solid waste [6] Group 4: Environmental Restoration - Baotou City has successfully rehabilitated abandoned mining areas using local construction waste, agricultural straw, and livestock manure, significantly improving ecological conditions and increasing vegetation coverage from 15% to 82% [8] - The region has completed 172 construction projects funded by special funds for solid waste pollution prevention, enhancing waste reduction, resource utilization, and harmless treatment [9] Group 5: Economic Development - Baotou City is leveraging its advantages in rare earth and silicon industries to achieve resource conservation and efficient utilization, with a notable 12.6% reduction in industrial solid waste generation intensity expected in 2024 compared to 2023 [10] - Ordos City is focusing on ecological environment access for high-energy projects and promoting green building practices to reduce solid waste generation at the source [10]