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2025
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Steel slag is a solid waste resource generated during the steelmaking process
Steel slag is a solid waste resource generated during steelmaking. It comes in many varieties with widely varying compositions and properties. Currently, the comprehensive utilization rate of processed steel slag is approximately 25%, with large quantities discarded, forming slag hills that seriously threaten environmental and ecological safety. This is increasingly becoming a bottleneck for the survival and development of the steel industry.
Steel slag, a solid waste resource from the steelmaking process, has considerable potential value. Its generation during steel production is unavoidable, but proper utilization can effectively solve solid waste disposal problems and achieve resource recycling. Steel slag contains abundant mineral components such as calcium silicate and iron oxides, giving it broad application prospects in building materials, road construction, and soil improvement. Through processes such as crushing, magnetic separation, and grinding, steel slag can be transformed into high-performance concrete admixtures, pavement base materials, and even used to produce environmentally friendly cement. Furthermore, the residual iron elements in steel slag can be recycled, further improving resource utilization efficiency. Therefore, strengthening research and promotion of comprehensive steel slag utilization technologies is of great significance to promoting the green development of the steel industry and achieving carbon peak and carbon neutrality goals. In the future, with continuous technological advancements and policy guidance, this solid waste resource will surely play a greater economic and environmental role.
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