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A Comprehensive Review of Precious Metals Recovery From Electronic Waste
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Author(s): M. Lurdes F. Gameiro (Instituto Politécnico de Setúbal, Portugal), João F. Dias (Instituto Politécnico de Setúbal, Portugal), Marta C. Justino (Instituto Politécnico de Setúbal, Portugal), Fátima N. Serralha (Instituto Politécnico de Setúbal, Portugal), Joana L. N. Tudella (Instituto Politécnico de Setúbal, Portugal)and A. Gabriela Gomes (Instituto Politécnico de Setúbal, Portugal)
Copyright: 2026
Pages: 52
Source title:
Resilient and Sustainable Regional Development
Source Author(s)/Editor(s): Teresa Costa (Polithecnic Institute of Setúbal, Portugal)and Helena Martins (ESCE, Instituto Politécnico de Setúbal, Portugal & CEOS, ISCAP, Polytechnic of Porto, Portugal & Nova School of Business and Economics, Portugal)
DOI: 10.4018/979-8-3693-7929-5.ch007
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Abstract
The growing demand for electronic devices and shorter product lifecycles has led to a surge in electronic waste, especially waste printed circuit boards, rich in valuable metals like gold, silver, and platinum, often in higher concentrations than natural ores. Traditional pyrometallurgical recovery processes are energy-intensive and environmentally damaging, driving a shift toward more sustainable approaches. Hydrometallurgical methods, such as leaching and solvent extraction, offer reduced energy requirements and enhanced selectivity. Recent advancements are exploring eco-friendly leaching agents to improve precious metal recovery, though challenges with reagent stability and environmental impact remain. Cutting-edge techniques like ionic liquid application show high extraction efficiencies, while alternative methods, such as bioleaching and biosorption, are gaining traction due to their low environmental impact. This chapter examines key techniques for precious metal recovery, emphasizing the need for continued research to optimize sustainable and cost-effective processes.
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