Recovery of rare-earth metals from aqueous solutions by bio/adsorption using non-conventional materials: a review with recent studies and promising approaches in column applications

Autor(es)

da Costa, Talles Barcelos ^[1] ; Carlos da Silva, Meuris Gurgel ^[1] ; Adeodato Vieira, Melissa Gurgel ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Chem Engn, Albert Einstein Ave 500, BR-13083852 Campinas - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: JOURNAL OF RARE EARTHS; v. 38, n. 4, p. 339-355, APR 2020.
• Citações Web of Science: 0

Resumo

The recovery of rare-earth metals (REMs) is of great economic and environmental interest, because of their high market prices and various industrial applications. Recently, with the increasing demand for high-purity rare-earth compounds, the separation and purification of these elements have gained considerable attention. The bio/adsorption process has been considered an alternative to recover these elements, by its simplicity, low cost and efficiency for recovery of REMs at low concentrations. This review article presents the recent progress regarding REM bio/adsorption published literature in batch system by different non-conventional bio/adsorbents, as well as a critical analysis of the technological challenges to be faced and future prospects. For this purpose, the best application model (isotherm, kinetics), thermodynamic quantities and selection of eluents for desorption studies are also discussed. Additionally, in this review, the application of different bio/adsorbent materials were reviewed extensively in terms of the removal and recovery of REMs in continuous fixed-bed adsorption and regeneration cycles. Finally, future aspects in bio/adsorption research and prospects for commercial applications were discussed. (C) 2020 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 17/18236-1 - Recuperação de íons metálicos nobres e íons terras-raras presentes em soluções aquosas por bioadsorção em partículas de blenda de sericina e alginato
• Beneficiário: Melissa Gurgel Adeodato Vieira
• Modalidade de apoio: Auxílio à Pesquisa - Regular