Marine algae: A promising resource for the selective recovery of scandium and rare earth elements from aqueous systems

Ramasamy, Deepika Lakshmi; Porada, S.; Sillanpää, Mika

doi:10.1016/j.cej.2019.04.106

Cited by 86 publications

(32 citation statements)

References 47 publications

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“…Different types of sorbents have been reported for the sorption of scandium from dilute solutions, including (a) biosorbents such as yeast [17], bacteria [18] or algae [19], carbon-based materials [20], resins [21][22][23][24]; impregnated resins [25][26][27]. Recently a new generation of materials has been designed using the interactions of alginate and polyethyleneimine (PEI) for manufacturing bead sorbents [28].…”

Section: Introductionmentioning

confidence: 99%

Quaternization of algal/PEI beads (a new sorbent): Characterization and application to scandium sorption from aqueous solutions

Hamza

Wei

Guibal³

2020

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Quaternization of algal/PEI beads (a new sorbent): Characterization and application to scandium sorption from aqueous solutions

Hamza

Wei

Guibal³

2020

Chemical Engineering Journal

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“…Selective recovery of Sc and other REEs from AMD‐like water was studied using green marine algae ( Posidonia oceanica ) in a single‐ and multi‐component system (Ramasamy, Porada, & Sillanpaa, 2019). Enhancement of all REEs was due to PAN grafted onto algal biomass.…”

Section: Recovery Of Resources From Mine Drainagementioning

confidence: 99%

Mine drainage: Remediation technology and resource recovery

Viadero

Zhang

et al. 2020

Water Environment Research

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Drainage from current and historic mining operations remains a persistent environmental problem. Numerous research and development efforts were made in 2019 with a goal to minimize the impact of mine drainage on the environment, while other research endeavors addressed the mine drainage issue from a different perspective, where mine drainage was considered a resource for water and valuable products, such as metals, sulfuric acid, and rare earth elements. Thus, this review has two main sections: (a) focusing on research efforts in mine drainage remediation technology, and (b) emphasizing advances in resource recovery from mine drainage. The first section covers traditional and emerging passive and active treatment technologies. The second section summarizes resource recovery efforts using various technologies, such as selective precipitation, membrane process, and biological systems.

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“…Biosorption processes have already been reported for the recovery of REEs including algal biomass [32,33] and alginate (a polysaccharide bearing guluronic and mannuronic acid groups) [34][35][36][37][38][39]. Alginate is frequently used for metal sorption making profit of the reactivity of carboxylate groups [40,41], but also as a constituent of composite sorbents [42].…”

Section: Introductionmentioning

confidence: 99%

Efficient Recovery of Rare Earth Elements (Pr(III) and Tm(III)) From Mining Residues Using a New Phosphorylated Hydrogel (Algal Biomass/PEI)

Salih

Wei

et al. 2021

Metals

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With the target of recovering rare earth elements (REEs) from acidic leachates, a new functionalized hydrogel was designed, based on the phosphorylation of algal/polyethyleneimine beads. The functionalization strongly increased the sorption efficiency of the raw material for Pr(III) and Tm(III). Diverse techniques were used for characterizing this new material and correlating the sorption performances and mechanisms to the physicochemical structure of the sorbent. First, the work characterized the sorption properties from synthetic solutions with the usual procedures (study of pH effect, uptake kinetics, sorption isotherms, metal desorption and sorbent recycling, and selectivity from multi-element solutions). Optimum pH was found close to 5; sorption isotherms were fitted by the Langmuir equation (maximum sorption capacities close to 2.14 mmol Pr g−1 and 1.57 mmol Tm g−1). Fast uptake kinetics were modeled by the pseudo-second order rate equation. The sorbent was highly selective for REEs against alkali-earth and base metals. The sorbent was remarkably stable for sorption and desorption operation (using 0.2 M HCl/0.5 M CaCl2 solutions). The sorbent was successfully applied to the leachates of Egyptian ore (pug leaching) after a series of pre-treatments (precipitation steps), sorption, and elution. The selective precipitation of REEs using oxalic acid allows for the recovery of a pure REE precipitate.

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Marine algae: A promising resource for the selective recovery of scandium and rare earth elements from aqueous systems

Cited by 86 publications

References 47 publications

Quaternization of algal/PEI beads (a new sorbent): Characterization and application to scandium sorption from aqueous solutions

Quaternization of algal/PEI beads (a new sorbent): Characterization and application to scandium sorption from aqueous solutions

Mine drainage: Remediation technology and resource recovery

Efficient Recovery of Rare Earth Elements (Pr(III) and Tm(III)) From Mining Residues Using a New Phosphorylated Hydrogel (Algal Biomass/PEI)

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