Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Recovery of metals from waste lithium ion battery leachates using biogenic hydrogen sulfide

Calvert, G., Kaksonen, A.H., Cheng, K.Y., Van Yken, J., Chang, B. and Boxall, N.J. (2019) Recovery of metals from waste lithium ion battery leachates using biogenic hydrogen sulfide. Minerals, 9 (9). p. 563.

PDF - Published Version
Download (1MB) | Preview
Free to read:
*No subscription required


Lithium ion battery (LIB) waste is increasing globally and contains an abundance of valuable metals that can be recovered for re-use. This study aimed to evaluate the recovery of metals from LIB waste leachate using hydrogen sulfide generated by a consortium of sulfate-reducing bacteria (SRB) in a lactate-fed fluidised bed reactor (FBR). The microbial community analysis showed Desulfovibrio as the most abundant genus in a dynamic and diverse bioreactor consortium. During periods of biogenic hydrogen sulfide production, the average dissolved sulfide concentration was 507 mg L−1 and the average volumetric sulfate reduction rate was 278 mg L−1 d−1. Over 99% precipitation efficiency was achieved for Al, Ni, Co, and Cu using biogenic sulfide and NaOH, accounting for 96% of the metal value contained in the LIB waste leachate. The purity indices of the precipitates were highest for Co, being above 0.7 for the precipitate at pH 10. However, the process was not selective for individual metals due to simultaneous precipitation and the complexity of the metal content of the LIB waste. Overall, the process facilitated the production of high value mixed metal precipitates, which could be purified further or used as feedstock for other processes, such as the production of steel.

Item Type: Journal Article
Murdoch Affiliation(s): School of Engineering and Information Technology
School of Veterinary and Life Sciences
Publisher: MDPI AG
Copyright: © 2019 MDPI
Item Control Page Item Control Page


Downloads per month over past year