Theoretical adsorption modeling and simulation of toxic arsenic ions removal in batch and continuous systems using Mn/Mg/Fe layered double hydroxides

Thi Hai, N; Ryu, S; Loganathan, P; Kandasamy, J; Vigneswaran, S; Nguyen, TV

Theoretical adsorption modeling and simulation of toxic arsenic ions removal in batch and continuous systems using Mn/Mg/Fe layered double hydroxides

Thi Hai, N Ryu, S Loganathan, P Kandasamy, J

Vigneswaran, S

Nguyen, TV

Permalink

Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Chemical Engineering Research and Design, 2025, 220, pp. 49-58
Issue Date:: 2025-08-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Published versionAdobe PDF (3.92 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Thi Hai, N
dc.contributor.author	Ryu, S
dc.contributor.author	Loganathan, P
dc.contributor.author	Kandasamy, J https://orcid.org/0000-0003-0160-3519
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322
dc.contributor.author	Nguyen, TV
dc.date.accessioned	2025-12-22T03:04:21Z
dc.date.available	2025-12-22T03:04:21Z
dc.date.issued	2025-08-01
dc.identifier.citation	Chemical Engineering Research and Design, 2025, 220, pp. 49-58
dc.identifier.issn	0263-8762
dc.identifier.issn	1744-3563
dc.identifier.uri	http://hdl.handle.net/10453/191084
dc.description.abstract	Groundwater contaminated by arsenic (As) presents an increasingly important challenge in many countries throughout the world because of the danger it poses to the health of humans, flora and fauna. The main challenge in research on removing As from groundwater is the need to test under several experimental conditions to optimise the parameters for adsorption column studies. This study aims to develop a robust mathematical model that enhances the operational conditions of dynamic adsorption columns based on limited laboratory experimental data. In this study, after batch experiments, two columns experiment with a synthesized layered double hydroxide (Mn/Mg/Fe-LDH) adsorbent were applied to investigate the adsorbent's performance in removing As ions, specifically As(III) and As(V), from synthetic water. Using the same experimental conditions (filtration rate 0.75 m/h, bed height 0.09 m, and inlet As concentration 0.33 mg/L), the exhaustion time for Mn/Mg/Fe-LDH in the removal of As(III) amounted to 280 days, which was longer than 180 days for As(V). The dynamic adsorption column model, which utilized the pore diffusion model (PDM) in conjunction with the Sips equation parameters, effectively simulated the breakthrough curves from the column experiments. The breakthrough curves were successfully simulated for a range of adsorption conditions such as bed height of 0.045–0.135 m, filtration rate of 0.75–1.25 m/h, and initial As(V) concentration of 0.033–3.333 mg/L. Characterization of the Mn/Mg/Fe-LDH adsorbent before and after the adsorption process indicated that the main mechanisms for As(III) and As(V) removal included oxidation-couples adsorption and reduction-coupled oxidation, respectively.
dc.language	English
dc.publisher	ELSEVIER
dc.relation.ispartof	Chemical Engineering Research and Design
dc.relation.isbasedon	10.1016/j.cherd.2025.06.027
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0102 Applied Mathematics, 0904 Chemical Engineering, 0911 Maritime Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Chemical Engineering
dc.subject.classification	Strategic, Defence & Security Studies
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4011 Environmental engineering
dc.subject.classification	4019 Resources engineering and extractive metallurgy
dc.title	Theoretical adsorption modeling and simulation of toxic arsenic ions removal in batch and continuous systems using Mn/Mg/Fe layered double hydroxides
dc.type	Journal Article
utslib.citation.volume	220
utslib.for	0102 Applied Mathematics
utslib.for	0904 Chemical Engineering
utslib.for	0911 Maritime Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
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/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Technology in Water and Wastewater (CTWW)
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Technology in Water and Wastewater (CTWW)/Centre for Technology in Water and Wastewater (CTWW) Associate Members
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-12-22T03:04:07Z
pubs.publication-status	Published
pubs.volume	220

Abstract:

Groundwater contaminated by arsenic (As) presents an increasingly important challenge in many countries throughout the world because of the danger it poses to the health of humans, flora and fauna. The main challenge in research on removing As from groundwater is the need to test under several experimental conditions to optimise the parameters for adsorption column studies. This study aims to develop a robust mathematical model that enhances the operational conditions of dynamic adsorption columns based on limited laboratory experimental data. In this study, after batch experiments, two columns experiment with a synthesized layered double hydroxide (Mn/Mg/Fe-LDH) adsorbent were applied to investigate the adsorbent's performance in removing As ions, specifically As(III) and As(V), from synthetic water. Using the same experimental conditions (filtration rate 0.75 m/h, bed height 0.09 m, and inlet As concentration 0.33 mg/L), the exhaustion time for Mn/Mg/Fe-LDH in the removal of As(III) amounted to 280 days, which was longer than 180 days for As(V). The dynamic adsorption column model, which utilized the pore diffusion model (PDM) in conjunction with the Sips equation parameters, effectively simulated the breakthrough curves from the column experiments. The breakthrough curves were successfully simulated for a range of adsorption conditions such as bed height of 0.045–0.135 m, filtration rate of 0.75–1.25 m/h, and initial As(V) concentration of 0.033–3.333 mg/L. Characterization of the Mn/Mg/Fe-LDH adsorbent before and after the adsorption process indicated that the main mechanisms for As(III) and As(V) removal included oxidation-couples adsorption and reduction-coupled oxidation, respectively.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/191084