The Role of E-Waste in Sustainable Mineral Resource Management

This paper analyses the role of electronic waste (E-waste) as a secondary source of critical and precious minerals, addressing the challenges and opportunities in transitioning towards a circular economy (CE) for electronics. The surging global demand for these essential materials, driven by technological advancements and renewable energy infrastructure, necessitates alternative supply strategies due to the depletion of natural reserves and the environmental degradation associated with primary mining. E-waste contains a rich concentration of valuable metals, making its recovery a promising solution aligned with CE principles, which can mitigate environmental impacts and ensure long-term material availability. The paper examines the environmental, economic, and technological aspects of E-waste recovery, including physical and mechanical separation, pyrometallurgical, hydrometallurgical, bio-metallurgical, and electrochemical processes. It also investigates innovative strategies for improving material recovery and sustainability, considering regulatory frameworks, technological innovations, and stakeholder engagements. The analysis highlights the significant potential of E-waste recycling to conserve natural resources, reduce environmental harm, and enhance economic resilience, while also acknowledging the technical, economic, and regulatory barriers that need to be addressed for widespread adoption.