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@article{2393113,
author = {Lalropuia, Lalropuia and Kučera, Jiří and Rassy, Wadih Y and Pakostova, Eva and Schild, Dominik and Mandl, Martin and Kremser, Klemens and Guebitz, Georg M.},
article_number = {January 2024},
doi = {http://dx.doi.org/10.3389/fmicb.2024.1347072},
keywords = {acidic mine pit lake; bacterial adaptation; bioleaching; black mass; lithium-ion batteries; metal recovery; microbial enrichment},
language = {eng},
issn = {1664-302X},
journal = {Frontiers in Microbiology},
title = {Metal recovery from spent lithium-ion batteries via two-step bioleaching using adapted chemolithotrophs from an acidic mine pit lake},
url = {https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2024.1347072/full},
volume = {15},
year = {2024}
}
TY - JOUR
ID - 2393113
AU - Lalropuia, Lalropuia - Kučera, Jiří - Rassy, Wadih Y - Pakostova, Eva - Schild, Dominik - Mandl, Martin - Kremser, Klemens - Guebitz, Georg M.
PY - 2024
TI - Metal recovery from spent lithium-ion batteries via two-step bioleaching using adapted chemolithotrophs from an acidic mine pit lake
JF - Frontiers in Microbiology
VL - 15
IS - January 2024
SP - 1-12
EP - 1-12
PB - Frontiers Media SA
SN - 1664302X
KW - acidic mine pit lake
KW - bacterial adaptation
KW - bioleaching
KW - black mass
KW - lithium-ion batteries
KW - metal recovery
KW - microbial enrichment
UR - https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2024.1347072/full
N2 - The demand for lithium-ion batteries (LIBs) has dramatically increased in recent years due to their application in various electronic devices and electric vehicles (EVs). Great amount of LIB waste is generated, most of which ends up in landfills. LIB wastes contain substantial amounts of critical metals (such as Li, Co, Ni, Mn, and Cu) and can therefore serve as valuable secondary sources of these metals. Metal recovery from the black mass (shredded spent LIBs) can be achieved via bioleaching, a microbiology-based technology that is considered to be environmentally friendly, due to its lower costs and energy consumption compared to conventional pyrometallurgy or hydrometallurgy. However, the growth and metabolism of bioleaching microorganisms can be inhibited by dissolved metals. In this study, the indigenous acidophilic chemolithotrophs in a sediment from a highly acidic and metal-contaminated mine pit lake were enriched in a selective medium containing iron, sulfur, or both electron donors. The enriched culture with the highest growth and oxidation rate and the lowest microbial diversity (dominated by Acidithiobacillus and Alicyclobacillus spp. utilizing both electron donors) was then gradually adapted to increasing concentrations of Li+, Co2+, Ni2+, Mn2+, and Cu2+. Finally, up to 100% recovery rates of Li, Co, Ni, Mn, and Al were achieved via two-step bioleaching using the adapted culture, resulting in more effective metal extraction compared to bioleaching with a non-adapted culture and abiotic control.
ER -
LALROPUIA, Lalropuia, Jiří KUČERA, Wadih Y RASSY, Eva PAKOSTOVA, Dominik SCHILD, Martin MANDL, Klemens KREMSER and Georg M. GUEBITZ. Metal recovery from spent lithium-ion batteries via two-step bioleaching using adapted chemolithotrophs from an acidic mine pit lake. \textit{Frontiers in Microbiology}. Frontiers Media SA, 2024, vol.~15, January 2024, p.~1-12. ISSN~1664-302X. Available from: https://dx.doi.org/10.3389/fmicb.2024.1347072.
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