Xu Zhang, Hongjie Shi
In modern societies, the accumulation of vast amounts of waste Li-ion batteries (WLIBs) is a grave concern. Bioleaching has great potential for the economic recovery of valuable metals from various electronic wastes and has been successfully applied in mining on commercial scales. This review summarizes the advances in bioleaching of WLIBs, focusing on the effects of high concentrations of heavy metal ions released during the bio-solubilization process, which inhibit the growth and metabolic activities of acidophilic microorganisms (APM). We identify the need to understand the response mechanisms of APM to harsh conditions to develop effective strategies for enhancing bioleaching efficiency. The review employs a multi-scale approach to discuss the characteristics of bioleaching under metal ion stress and the mRNA expression levels of intracellular genes linked to heavy metal ion resistance in bacteria. Strategies for alleviating metal ion stress, including the addition of chemicals such as spermine and glutathione to improve transcriptional, enzymatic, and metabolic profiles, are also highlighted. Overall, the findings underscore the significance of addressing metal ion stress to enhance the bioleaching process for the sustainable recovery of valuable metals from WLIBs.
@article{d1dac5e3-20ad-4b2b-84ac-85bf000ec54c,
title={Advances in bioleaching of waste lithium batteries under metal ion stress},
author={Xu Zhang and Hongjie Shi},
year={2023},
language={en}
}TY - JOUR TI - Advances in bioleaching of waste lithium batteries under metal ion stress AU - Xu Zhang AU - Hongjie Shi PY - 2023 LA - en ER -
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