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Galdieria sulphuraria ACUF427 Freeze-Dried Biomass as Novel Biosorbent for Rare Earth Elements

Rare earth elements (REEs) are essential components of modern technologies and are often challenging to acquire from natural resources. The demand for REEs is so high that there is a clear need to develop efficient and environmentally-friendly recycling methods. In the present study, freeze-dried ce...

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Autores principales: Palmieri, Maria, Iovinella, Manuela, Davis, Seth J., di Cicco, Maria Rosa, Lubritto, Carmine, Race, Marco, Papa, Stefania, Fabbricino, Massimiliano, Ciniglia, Claudia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694017/
https://www.ncbi.nlm.nih.gov/pubmed/36363730
http://dx.doi.org/10.3390/microorganisms10112138
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author Palmieri, Maria
Iovinella, Manuela
Davis, Seth J.
di Cicco, Maria Rosa
Lubritto, Carmine
Race, Marco
Papa, Stefania
Fabbricino, Massimiliano
Ciniglia, Claudia
author_facet Palmieri, Maria
Iovinella, Manuela
Davis, Seth J.
di Cicco, Maria Rosa
Lubritto, Carmine
Race, Marco
Papa, Stefania
Fabbricino, Massimiliano
Ciniglia, Claudia
author_sort Palmieri, Maria
collection PubMed
description Rare earth elements (REEs) are essential components of modern technologies and are often challenging to acquire from natural resources. The demand for REEs is so high that there is a clear need to develop efficient and environmentally-friendly recycling methods. In the present study, freeze-dried cells of the extremophile Galdieria sulphuraria were employed to recover yttrium, cerium, europium, and terbium from quaternary-metal aqueous solutions. The biosorption capacity of G. sulphuraria freeze-dried algal biomass was tested at different pHs, contact times, and biosorbent dosages. All rare earths were biosorbed in a more efficient way by the lowest dose of biosorbent, at pH 4.5, within 30 min; the highest removal rate of cerium was recorded at acidic pH (2.5) and after a longer contact time, i.e., 360 min. This study confirms the potential of freeze-dried cells of G. sulphuraria as innovative ecological biosorbents in technological applications for sustainable recycling of metals from e-waste and wastewater.
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spelling pubmed-96940172022-11-26 Galdieria sulphuraria ACUF427 Freeze-Dried Biomass as Novel Biosorbent for Rare Earth Elements Palmieri, Maria Iovinella, Manuela Davis, Seth J. di Cicco, Maria Rosa Lubritto, Carmine Race, Marco Papa, Stefania Fabbricino, Massimiliano Ciniglia, Claudia Microorganisms Article Rare earth elements (REEs) are essential components of modern technologies and are often challenging to acquire from natural resources. The demand for REEs is so high that there is a clear need to develop efficient and environmentally-friendly recycling methods. In the present study, freeze-dried cells of the extremophile Galdieria sulphuraria were employed to recover yttrium, cerium, europium, and terbium from quaternary-metal aqueous solutions. The biosorption capacity of G. sulphuraria freeze-dried algal biomass was tested at different pHs, contact times, and biosorbent dosages. All rare earths were biosorbed in a more efficient way by the lowest dose of biosorbent, at pH 4.5, within 30 min; the highest removal rate of cerium was recorded at acidic pH (2.5) and after a longer contact time, i.e., 360 min. This study confirms the potential of freeze-dried cells of G. sulphuraria as innovative ecological biosorbents in technological applications for sustainable recycling of metals from e-waste and wastewater. MDPI 2022-10-28 /pmc/articles/PMC9694017/ /pubmed/36363730 http://dx.doi.org/10.3390/microorganisms10112138 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Palmieri, Maria
Iovinella, Manuela
Davis, Seth J.
di Cicco, Maria Rosa
Lubritto, Carmine
Race, Marco
Papa, Stefania
Fabbricino, Massimiliano
Ciniglia, Claudia
Galdieria sulphuraria ACUF427 Freeze-Dried Biomass as Novel Biosorbent for Rare Earth Elements
title Galdieria sulphuraria ACUF427 Freeze-Dried Biomass as Novel Biosorbent for Rare Earth Elements
title_full Galdieria sulphuraria ACUF427 Freeze-Dried Biomass as Novel Biosorbent for Rare Earth Elements
title_fullStr Galdieria sulphuraria ACUF427 Freeze-Dried Biomass as Novel Biosorbent for Rare Earth Elements
title_full_unstemmed Galdieria sulphuraria ACUF427 Freeze-Dried Biomass as Novel Biosorbent for Rare Earth Elements
title_short Galdieria sulphuraria ACUF427 Freeze-Dried Biomass as Novel Biosorbent for Rare Earth Elements
title_sort galdieria sulphuraria acuf427 freeze-dried biomass as novel biosorbent for rare earth elements
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694017/
https://www.ncbi.nlm.nih.gov/pubmed/36363730
http://dx.doi.org/10.3390/microorganisms10112138
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