Abstract
Solid waste containing valuable elements has the potential to be a valuable secondary resource. However, the common methods (hydrometallurgy and pyrometallurgy) used to recover these elements from solid waste consume large amounts of energy and pollute the environment. Therefore, it is crucial to explore a low energy-consuming, efficient, and environmentally friendly method for recovering these valuable elements. One promising approach is to utilize an applied electric field as a reaction driver to enhance conventional chemical leaching. By using electrons as a green leaching agent or leaching medium instead of chemical agents, the recovery of valuable elements can be significantly improved while reducing the consumption of chemical reagents and environmental pollution. This paper provides a detailed and categorized discussion on the application of different forms of electrochemical methods for the effective recovery of valuable elements from various forms of solid waste.
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