Biomining using microalgae to recover rare earth elements (REEs) from bauxite.

Vo, PHN; Kuzhiumparambil, U; Kim, M; Hinkley, C; Pernice, M; Nghiem, LD; Ralph, PJ

Biomining using microalgae to recover rare earth elements (REEs) from bauxite.

Vo, PHN Kuzhiumparambil, U

Kim, M

Hinkley, C

Pernice, M

Nghiem, LD Ralph, PJ

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Bioresour Technol, 2024, 406, pp. 131077
Issue Date:: 2024-08

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Field	Value	Language
dc.contributor.author	Vo, PHN
dc.contributor.author	Kuzhiumparambil, U https://orcid.org/0000-0003-0582-6779
dc.contributor.author	Kim, M https://orcid.org/0000-0001-7059-9432
dc.contributor.author	Hinkley, C https://orcid.org/0000-0002-2326-4725
dc.contributor.author	Pernice, M https://orcid.org/0000-0002-3431-2104
dc.contributor.author	Nghiem, LD
dc.contributor.author	Ralph, PJ
dc.date.accessioned	2024-11-21T06:02:39Z
dc.date.available	2024-07-03
dc.date.available	2024-11-21T06:02:39Z
dc.date.issued	2024-08
dc.identifier.citation	Bioresour Technol, 2024, 406, pp. 131077
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/182023
dc.description.abstract	Biomining using microalgae has emerged as a sustainable option to extract rare earth elements (REEs). This study aims to (i) explore the capability of REEs recovery from bauxite by microalgae, (ii) assess the change of biochemical function affected by bauxite, and (iii) investigate the effects of operating conditions (i.e., aeration rate, pH, hydraulic retention time) to REEs recovery. The results showed that increasing bauxite in microalgae culture increases REEs recovery in biomass and production of biochemical compounds (e.g., pigments and Ca-Mg ATPase enzyme) up to 10 %. The optimum pulp ratio of bauxite in the microalgae culture ranges from 0.2 % to 0.6 %. Chlorella vulgaris was the most promising, with two times higher in REEs recovery in biomass than the other species. REEs accumulated in microalgae biomass decreased with increasing pH in the culture. This study establishes a platform to make the scaling up of REEs biomining by microalgae plausible.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Bioresour Technol
dc.relation.isbasedon	10.1016/j.biortech.2024.131077
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Biotechnology
dc.subject.classification	3001 Agricultural biotechnology
dc.subject.classification	3106 Industrial biotechnology
dc.subject.classification	3107 Microbiology
dc.subject.mesh	Metals, Rare Earth
dc.subject.mesh	Microalgae
dc.subject.mesh	Biomass
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Aluminum Oxide
dc.subject.mesh	Chlorella vulgaris
dc.subject.mesh	Chlorella vulgaris
dc.subject.mesh	Aluminum Oxide
dc.subject.mesh	Metals, Rare Earth
dc.subject.mesh	Biomass
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Microalgae
dc.subject.mesh	Metals, Rare Earth
dc.subject.mesh	Microalgae
dc.subject.mesh	Biomass
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Aluminum Oxide
dc.subject.mesh	Chlorella vulgaris
dc.title	Biomining using microalgae to recover rare earth elements (REEs) from bauxite.
dc.type	Journal Article
utslib.citation.volume	406
utslib.location.activity	England
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Climate Change Cluster Research Strength (C3)
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2024-11-21T06:02:38Z
pubs.publication-status	Published
pubs.volume	406

Abstract:

Biomining using microalgae has emerged as a sustainable option to extract rare earth elements (REEs). This study aims to (i) explore the capability of REEs recovery from bauxite by microalgae, (ii) assess the change of biochemical function affected by bauxite, and (iii) investigate the effects of operating conditions (i.e., aeration rate, pH, hydraulic retention time) to REEs recovery. The results showed that increasing bauxite in microalgae culture increases REEs recovery in biomass and production of biochemical compounds (e.g., pigments and Ca-Mg ATPase enzyme) up to 10 %. The optimum pulp ratio of bauxite in the microalgae culture ranges from 0.2 % to 0.6 %. Chlorella vulgaris was the most promising, with two times higher in REEs recovery in biomass than the other species. REEs accumulated in microalgae biomass decreased with increasing pH in the culture. This study establishes a platform to make the scaling up of REEs biomining by microalgae plausible.

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http://hdl.handle.net/10453/182023