Electrolytic manganese residue (EMR) is an acidic solid waste generated during the production of electrolytic manganese from manganese ores. EMR contains high concentrations of ammonia nitrogen, heavy metals, and valuable components (e.g., manganese), posing significant environmental risks while also offering potential for resource recovery. Consequently, the treatment and resource utilization of EMR have attracted considerable academic and industrial attention, leading to numerous innovative achievements. This review summarizes the recent research progress on EMR, including its physicochemical properties, ecological impacts, methods for manganese extraction and utilization, and strategies for comprehensive resource utilization. Furthermore, this paper discusses emerging trends and persistent challenges in EMR recycling, offering a valuable reference for further research in this field.
Wei et al. (2026) studied this question.