Fabrication of carbon-based hydrogel membrane for landfill leachate wastewater treatment

Karbassiyazdi, E; Altaee, A; Ibrar, I; Razmjou, A; Alsaka, L; Ganbat, N; Malekizadeh, A; Ghobadi, R; Khabbaz, H

Fabrication of carbon-based hydrogel membrane for landfill leachate wastewater treatment

Karbassiyazdi, E Altaee, A

Ibrar, I Razmjou, A Alsaka, L Ganbat, N

Malekizadeh, A Ghobadi, R Khabbaz, H

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Desalination, 2023, 564, pp. 116783
Issue Date:: 2023-10-15

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Field	Value	Language
dc.contributor.author	Karbassiyazdi, E
dc.contributor.author	Altaee, A https://orcid.org/0000-0001-9764-3974
dc.contributor.author	Ibrar, I
dc.contributor.author	Razmjou, A
dc.contributor.author	Alsaka, L
dc.contributor.author	Ganbat, N https://orcid.org/0000-0002-3557-8481
dc.contributor.author	Malekizadeh, A
dc.contributor.author	Ghobadi, R
dc.contributor.author	Khabbaz, H
dc.date.accessioned	2023-07-06T06:14:10Z
dc.date.available	2023-07-06T06:14:10Z
dc.date.issued	2023-10-15
dc.identifier.citation	Desalination, 2023, 564, pp. 116783
dc.identifier.issn	0011-9164
dc.identifier.uri	http://hdl.handle.net/10453/171256
dc.description.abstract	The challenge of effectively managing the discharge of metal ions into aquatic environments, which poses a significant risk to both human health and ecosystems, persists despite the availability of various analytical tools and techniques. There are limitations of existing separation technologies and the inefficacy of hydrogel materials in removing low molecular weight contaminants, such as metal ions, in aqueous solutions. This study added carbon powder to the hydrogel membrane to reduce the low-mechanical strength and drying problems and increase its capacity for adsorbing ionic and non-ionic substances. The study introduced a novel carbon-based aluminium hydroxide hydrogel for wastewater filtration. CG was characterized using various analytical techniques, including examining surface morphology, elemental analysis, surface functional groups, and surface charge. These analytical tools provided a comprehensive understanding of the properties and performance of the CG. The effects of different carbon-based hydrogel (CG) concentrations on water flux and ion rejection were evaluated in a gravity filtration setup. Experiments investigated the influence of different ion concentrations, activated carbon (AC) concentration, centrifugation, water flux, and rejection on removing heavy metals from synthetic and natural wastewater. The pure water flux of the hydrogel membrane was 120 LMH. The results indicated that an AC concentration of 4 g/L in the aqueous solution is optimal for heavy metals removal, with 99.9 % removal for Pb2+ and Cu2+, 84 % rejection for Ca2+, and 85 % rejection for Mg2+ in 10 mg/L of synthetic water. Besides, the 4 g/L AC hydrogel membrane removed 90 % of Ni, Zn, Pb, As, and Cu ions and 53 % of the total organic carbon from leachate wastewater.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Desalination
dc.relation.isbasedon	10.1016/j.desal.2023.116783
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Engineering
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.title	Fabrication of carbon-based hydrogel membrane for landfill leachate wastewater treatment
dc.type	Journal Article
utslib.citation.volume	564
utslib.for	03 Chemical Sciences
utslib.for	09 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 - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Strength - CAMGIS - Centre for Advanced Modelling and Geospatial lnformation Systems
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2025-06-01T00:00:00+1000Z
dc.date.updated	2023-07-06T06:13:38Z
pubs.publication-status	Accepted
pubs.volume	564

Abstract:

The challenge of effectively managing the discharge of metal ions into aquatic environments, which poses a significant risk to both human health and ecosystems, persists despite the availability of various analytical tools and techniques. There are limitations of existing separation technologies and the inefficacy of hydrogel materials in removing low molecular weight contaminants, such as metal ions, in aqueous solutions. This study added carbon powder to the hydrogel membrane to reduce the low-mechanical strength and drying problems and increase its capacity for adsorbing ionic and non-ionic substances. The study introduced a novel carbon-based aluminium hydroxide hydrogel for wastewater filtration. CG was characterized using various analytical techniques, including examining surface morphology, elemental analysis, surface functional groups, and surface charge. These analytical tools provided a comprehensive understanding of the properties and performance of the CG. The effects of different carbon-based hydrogel (CG) concentrations on water flux and ion rejection were evaluated in a gravity filtration setup. Experiments investigated the influence of different ion concentrations, activated carbon (AC) concentration, centrifugation, water flux, and rejection on removing heavy metals from synthetic and natural wastewater. The pure water flux of the hydrogel membrane was 120 LMH. The results indicated that an AC concentration of 4 g/L in the aqueous solution is optimal for heavy metals removal, with 99.9 % removal for Pb2+ and Cu2+, 84 % rejection for Ca2+, and 85 % rejection for Mg2+ in 10 mg/L of synthetic water. Besides, the 4 g/L AC hydrogel membrane removed 90 % of Ni, Zn, Pb, As, and Cu ions and 53 % of the total organic carbon from leachate wastewater.

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http://hdl.handle.net/10453/171256