The research status about comprehensive utilization of carbide slag is expounded.The traditional re-utilization routes include the preparation of construction materials and the improvement of environment,such as using carbide slag to produce cement,geopolymer,and other construction materials.In addition,carbide slag presents strong alkaline,which can treat with acidic wastewater and waste gas,so as to achieve the purpose of waste treatment and environmental protection simultaneously.The new opportunities of carbide slag re-utilization in chemistry,metallurgy and carbon dioxide capture are summarized.Carbide slag is a good calcium-based resource,and also exhibits good economy,showing a significance in re-utilization.
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