State-of-the-Art and Problems of Bioleaching of Metals from Ash-and-Slag Wastes

The article delves into the current state and challenges of bioleaching metals from ash-and-slag wastes (ASW), primarily generated by thermal power plants (TPP) and waste incineration plants (WIP). It discusses the environmental and economic importance of efficiently utilizing these wastes, which are often stored and degraded, leading to environmental contamination. The article highlights the varied compositions and properties of ASW, influencing their application in metal extraction. It also compares the utilization rates of ASW in different countries, emphasizing the need for state policy and technological advancements. The main focus is on the bioleaching process, its benefits, and the urgent need for economically viable solutions in the context of dwindling natural resources. The article provides a detailed analysis of the physicochemical properties of ASW and their implications for metal extraction, making it a valuable resource for specialists in waste management and metallurgy.