Hanyang University · Engineering
Professor Sadia Ilyas's research lab specializes in sustainable metallurgical processes, focusing on the bio-recovery of critical metals—such as lithium, cobalt, nickel, rare earth elements, and precious metals—from electronic waste and mine tailings. The lab pioneers green bio-hydrometallurgical techniques using microbial systems, including fungi and bacteria, to produce organic and inorganic acids for efficient metal leaching, while exploring low-cost substrates like biowaste and agricultural residues. A key research direction involves hybrid bio-chemical processes to overcome kinetic limitations and enhance scalability for industrial applications.
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Abstract The feasibility of biometallurgical processing for recovering heavy metals, precious metals, and rare earth elements from waste electrical and electronic equipment (WEEE) is critically reviewed. An overview of past achievements, present scenarios, and future prospects of these techniques is given. The potential of various lithotrophic and organotrophic microorganisms is particularly highlighted for extracting metals by producing inorganic and organic acids in the process. The metal‐bind
Abstract BACKGROUND Critical metals (lithium, cobalt and nickel) used in Li‐ion batteries have been estimated to face a supply crunch by the end of 2020 due to their limited natural reserves and complex metallurgy. A green recycling approach to treat the exhausted batteries may potentially mitigate supply risks of metals and environmental burden of metal toxicity. RESULTS The maiden application of bio‐producible/degradable ascorbic acid for the leaching of LiNi x Co y Mn z O 2 (LNCM) cathode bat
Abstract Critical metals are key raw materials for new generation clean energy production. The extraction of critical metals often follows the difficult processing of primary ores and they are many times recovered as the companion metals. With the depletion of primary reserves, the focus has now shifted to processing the urban mines, like electronic (e‐)waste. Among the different types of e‐waste, the waste printed circuit boards (WPCBs) are the major reservoir of high‐value critical metals and
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