Abstract

Rare earth element (REE) recovery from waste streams, mine tailings or recyclable components using bioleaching is gaining traction due to the shortage and security of REE supply as well as the environmental problems that occur from processing and refining. Four heterotrophic microbial species with known phosphate solubilizing capabilities were evaluated for their ability to leach REE from a high-grade monazite when provided with either galactose, fructose or maltose. Supplying fructose resulted in the greatest amount of REE leached from the ore due to the largest amount of organic acid produced. Gluconic acid was the dominant organic acid identified produced by the cultures, followed by acetic acid. The monazite proved difficult to leach with the different carbon sources, with preferential release of Ce over La, Nd and Pr.

RAS ID

60683

Document Type

Journal Article

Date of Publication

1-1-2024

Volume

175

Issue

1-2

Funding Information

Australian Research Council

PubMed ID

37683878

School

School of Science

Grant Number

ARC Number : DP200103243

Grant Link

http://purl.org/au-research/grants/arc/DP200103243

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Publisher

Elsevier

Comments

Corbett, M. K., Gifford, A., Fimognari, N., & Watkin, E. L. J. (2024). Analysis of element yield, bacterial community structure and the impact of carbon sources for bioleaching rare earth elements from high grade monazite. Research in Microbiology, 175(1-2), article 104133. https://doi.org/10.1016/j.resmic.2023.104133

Download

Share

 
COinS
 

Link to publisher version (DOI)

10.1016/j.resmic.2023.104133