Selective recovery of europium from real acid mine drainage by using novel amine based modified SBA15 adsorbent and membrane distillation system

Fonseka, C; Ryu, S; Choo, Y; Naidu, G; Kandasamy, J; Thiruvenkatachari, R; Foseid, L; Ratnaweera, H; Vigneswaran, S

Selective recovery of europium from real acid mine drainage by using novel amine based modified SBA15 adsorbent and membrane distillation system

Fonseka, C Ryu, S Choo, Y

Naidu, G Kandasamy, J

Thiruvenkatachari, R Foseid, L Ratnaweera, H Vigneswaran, S

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Journal of Water Process Engineering, 2023, 56
Issue Date:: 2023-12-01

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Field	Value	Language
dc.contributor.author	Fonseka, C
dc.contributor.author	Ryu, S
dc.contributor.author	Choo, Y https://orcid.org/0000-0003-2715-0618
dc.contributor.author	Naidu, G
dc.contributor.author	Kandasamy, J https://orcid.org/0000-0003-0160-3519
dc.contributor.author	Thiruvenkatachari, R
dc.contributor.author	Foseid, L
dc.contributor.author	Ratnaweera, H
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322
dc.date.accessioned	2024-02-07T05:14:46Z
dc.date.available	2024-02-07T05:14:46Z
dc.date.issued	2023-12-01
dc.identifier.citation	Journal of Water Process Engineering, 2023, 56
dc.identifier.issn	2214-7144
dc.identifier.uri	http://hdl.handle.net/10453/175429
dc.description.abstract	Recovery of rare earth elements (REE) from secondary waste streams promises numerous advantages. Europium (Eu) is an essential component in various high-tech applications, including clean energy technologies. Ensuring a stable supply of europium through recycling reduces the vulnerability to supply disruptions and price fluctuations in the global market. To achieve this, there is a need for development of highly selective and commercially viable adsorbents for Eu recovery. This research presents a novel material, SBA15-NH-PMIDA, synthesized through a two-step surface modification process for selective retrieval of Eu from real acid mine drainage (AMD). Initially, comprehensive physical and chemical characterizations of the material were conducted to confirm its successful synthesis. Subsequent single-solute Eu adsorption experiments demonstrated that SBA15-NH-PMIDA achieved equilibrium within 2 h and exhibited a maximum Langmuir adsorption capacity of 86.21 mg/g at optimal pH of 4.8. It exhibited remarkable selectivity in recovering over 80 % of Eu from pH-adjusted real AMD, with an optimal dosage of 0.8 g/L. Next, a hybrid system amalgamating Direct Contact Membrane Distillation (DCMD) and adsorption was devised. This hybrid system involved the suspension of granulated SBA15-NH-PMIDA within the feed tank to treat pH-adjusted AMD. The DCMD system achieved an 80 % recovery of purified water while concentrating Eu ions by more than threefold, facilitating efficient and selective Eu recovery surpassing 90 %. Importantly, the uptake of other competing metals remained below 10 %. This is attributed to the formation of Eu complexes with phosphonic and carboxyl acid functional groups. SBA15-NH-PMIDA demonstrated its sustainability and viability by consistently retaining over 90 % of its adsorption capacity throughout ten regeneration cycles.
dc.language	English
dc.publisher	ELSEVIER
dc.relation.ispartof	Journal of Water Process Engineering
dc.relation.isbasedon	10.1016/j.jwpe.2023.104551
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4005 Civil engineering
dc.subject.classification	4011 Environmental engineering
dc.title	Selective recovery of europium from real acid mine drainage by using novel amine based modified SBA15 adsorbent and membrane distillation system
dc.type	Journal Article
utslib.citation.volume	56
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2024-02-07T05:14:45Z
pubs.publication-status	Published
pubs.volume	56

Abstract:

Recovery of rare earth elements (REE) from secondary waste streams promises numerous advantages. Europium (Eu) is an essential component in various high-tech applications, including clean energy technologies. Ensuring a stable supply of europium through recycling reduces the vulnerability to supply disruptions and price fluctuations in the global market. To achieve this, there is a need for development of highly selective and commercially viable adsorbents for Eu recovery. This research presents a novel material, SBA15-NH-PMIDA, synthesized through a two-step surface modification process for selective retrieval of Eu from real acid mine drainage (AMD). Initially, comprehensive physical and chemical characterizations of the material were conducted to confirm its successful synthesis. Subsequent single-solute Eu adsorption experiments demonstrated that SBA15-NH-PMIDA achieved equilibrium within 2 h and exhibited a maximum Langmuir adsorption capacity of 86.21 mg/g at optimal pH of 4.8. It exhibited remarkable selectivity in recovering over 80 % of Eu from pH-adjusted real AMD, with an optimal dosage of 0.8 g/L. Next, a hybrid system amalgamating Direct Contact Membrane Distillation (DCMD) and adsorption was devised. This hybrid system involved the suspension of granulated SBA15-NH-PMIDA within the feed tank to treat pH-adjusted AMD. The DCMD system achieved an 80 % recovery of purified water while concentrating Eu ions by more than threefold, facilitating efficient and selective Eu recovery surpassing 90 %. Importantly, the uptake of other competing metals remained below 10 %. This is attributed to the formation of Eu complexes with phosphonic and carboxyl acid functional groups. SBA15-NH-PMIDA demonstrated its sustainability and viability by consistently retaining over 90 % of its adsorption capacity throughout ten regeneration cycles.

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http://hdl.handle.net/10453/175429