Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/349094
Type: Artigo
Title: 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
Author: da Costa, Talles Barcelos
Carlos da Silva, Meuris Gurgel
Adeodato Vieira, Melissa Gurgel
Abstract: 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
Subject: Metais de terras raras
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.jre.2019.06.001
Address: https://www.sciencedirect.com/science/article/pii/S1002072119301929
Date Issue: 2020
Appears in Collections:FEQ - Artigos e Outros Documentos

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