Europium adsorption by granulated Cr-MIL-PMIDA metal−organic frameworks and dynamic fixed bed column modelling

Fonseka, C; Ryu, S; Naidu, G; Kandasamy, J; Thiruvenkatachari, R; Vigneswaran, S

Europium adsorption by granulated Cr-MIL-PMIDA metal−organic frameworks and dynamic fixed bed column modelling

Fonseka, C Ryu, S Naidu, G Kandasamy, J

Thiruvenkatachari, R 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	Naidu, G
dc.contributor.author	Kandasamy, J https://orcid.org/0000-0003-0160-3519
dc.contributor.author	Thiruvenkatachari, R
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322
dc.date.accessioned	2024-01-16T03:07:26Z
dc.date.available	2024-01-16T03:07:26Z
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/10453/174557
dc.description.abstract	Cr-MIL-PMIDA adsorbent exhibits high selectivity for Rare Earth Elements (REE) over competing transitional metals. However, shaping of this highly efficient material is necessary for industrial applications. Therefore, this paper focuses on the treatment of mining wastewater using a dynamic column adsorption process. In this study, Cr-MIL-PMIDA was successfully granulated for the first time using alginic acid and CaCl2. Divalent calcium ions (Ca2+) acts as the cross-linking agent with carboxyl groups, enabling the encapsulation of Cr-MIL-PMIDA powder and controlled release. The prepared material was characterised using XRD, SEM and FTIR measurements to validate successful granulation. Adsorption capacity of powdered Cr-MIL-PMIDA of 56.01 mg/g decreased to 31.05 mg/g after granulation due to reduction of surface area and pore volume. However, granulated Cr-MIL-PMIDA recorded only an 8 % reduction in selectivity towards Eu in a multi component solution compared to the powdered state. The material exhibited the ability to be reused for five cycles while maintaining over 90 % of its initial adsorption capacity. Furthermore, this study demonstrates that the dynamic column model developed for a novel granulated Cr-MIL-PMIDA can be reliably utilized to design industrial-scale systems for resource recovery from mining wastewater with a single adsorption column experiment.
dc.language	English
dc.publisher	ELSEVIER
dc.relation.ispartof	Journal of Water Process Engineering
dc.relation.isbasedon	10.1016/j.jwpe.2023.104475
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	Europium adsorption by granulated Cr-MIL-PMIDA metal−organic frameworks and dynamic fixed bed column modelling
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	2024-01-16T03:07:25Z
pubs.publication-status	Published
pubs.volume	56

Abstract:

Cr-MIL-PMIDA adsorbent exhibits high selectivity for Rare Earth Elements (REE) over competing transitional metals. However, shaping of this highly efficient material is necessary for industrial applications. Therefore, this paper focuses on the treatment of mining wastewater using a dynamic column adsorption process. In this study, Cr-MIL-PMIDA was successfully granulated for the first time using alginic acid and CaCl2. Divalent calcium ions (Ca2+) acts as the cross-linking agent with carboxyl groups, enabling the encapsulation of Cr-MIL-PMIDA powder and controlled release. The prepared material was characterised using XRD, SEM and FTIR measurements to validate successful granulation. Adsorption capacity of powdered Cr-MIL-PMIDA of 56.01 mg/g decreased to 31.05 mg/g after granulation due to reduction of surface area and pore volume. However, granulated Cr-MIL-PMIDA recorded only an 8 % reduction in selectivity towards Eu in a multi component solution compared to the powdered state. The material exhibited the ability to be reused for five cycles while maintaining over 90 % of its initial adsorption capacity. Furthermore, this study demonstrates that the dynamic column model developed for a novel granulated Cr-MIL-PMIDA can be reliably utilized to design industrial-scale systems for resource recovery from mining wastewater with a single adsorption column experiment.

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http://hdl.handle.net/10453/174557