IJESD 2021 Vol.12(5): 131-138 ISSN: 2010-0264
doi: 10.18178/ijesd.2021.12.5.1330
doi: 10.18178/ijesd.2021.12.5.1330
Optimization Modeling of nFe0/Cu-PRB Design for Cr(VI) Removal from Groundwater
I. Maamoun, O. Falyouna, R. Eljamal, K. Bensaida, and O. Eljamal
Abstract—Hexavalent chromium is one of the highly toxic heavy metals which could lead to severe health issues when it is discharged into aquifers as industrial wastewater. In the current study nFe0/Cu was successfully employed in PRB technology for Cr(VI) removal from groundwater. Batch and column experiments confirmed the high reactive performance of nFe0/Cu towards Cr(VI) removal by around 85% removal efficiency. The main pathways for Cr-species removal by nFe0/Cu were determined as the reduction of Cr(VI) to Cr(III) by both nFe0 and Cu0 and the precipitation/co-precipitation of Cr(III) with the released iron oxides on the nFe0/Cu surface. The developed 3D-surface response optimization model confirmed the reciprocal relation between the residence time, barrier thickness and hydraulic conductivity. The interaction and sensitivity analysis between the model’s parameters were significantly crucial for defining the optimal design conditions of the nFe0/Cu-PRB. Generally, the current study could represent a great contribution in scaling-up the PRB technology towards the real field applications.
Index Terms—Bimetallic nanoscale zero valent iron (nFe0/Cu), hexavalent chromium (Cr(VI)), optimization, permeable reactive barrier (PRB).
The authors are with the Department of Earth System Science and Technology, Interdisciplinary Graduate School of Engineering Sciences (IGSES), Kyushu University, Kasuga-city, Kasug-Koen (6-1), Fukuoka, 816-8050, Japan (e-mail: ibrahim-maamoun@kyudai.jp, omarail92@hotmail.com, ramadaneljamal54@gmail.com, khaoulabensaide@gmail.com, osama-eljamal@kyudai.jp).
Index Terms—Bimetallic nanoscale zero valent iron (nFe0/Cu), hexavalent chromium (Cr(VI)), optimization, permeable reactive barrier (PRB).
The authors are with the Department of Earth System Science and Technology, Interdisciplinary Graduate School of Engineering Sciences (IGSES), Kyushu University, Kasuga-city, Kasug-Koen (6-1), Fukuoka, 816-8050, Japan (e-mail: ibrahim-maamoun@kyudai.jp, omarail92@hotmail.com, ramadaneljamal54@gmail.com, khaoulabensaide@gmail.com, osama-eljamal@kyudai.jp).
Cite: I. Maamoun, O. Falyouna, R. Eljamal, K. Bensaida, and O. Eljamal, "Optimization Modeling of nFe0/Cu-PRB Design for Cr(VI) Removal from Groundwater," International Journal of Environmental Science and Development vol. 12, no. 5, pp. 131-138, 2021.
Copyright © 2021 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
PREVIOUS PAPER
First page
General Information
- ISSN: 2010-0264 (Print); 2972-3698 (Online)
- Abbreviated Title: Int. J. Environ. Sci. Dev.
- Frequency: Bimonthly
- DOI: 10.18178/IJESD
- Editor-in-Chief: Prof. Richard Haynes
- Managing Editor: Ms. Cherry L. Chen
- Indexing: Scopus (CiteScore 2022: 1.4), Google Scholar, CNKI, ProQuest, EBSCO, etc.
- E-mail: ijesd@ejournal.net
List group item headingWed
Some placeholder content in a paragraph below the heading and date.
List group item headingTues
Some placeholder content in a paragraph below the heading and date.
List group item headingMon
Some placeholder content in a paragraph below the heading and date.
List group item headingWed
Some placeholder content in a paragraph below the heading and date.
List group item headingTues
Some placeholder content in a paragraph below the heading and date.
List group item headingMon
Some placeholder content in a paragraph below the heading and date.
List group item headingWed
Some placeholder content in a paragraph below the heading and date.
List group item headingTues
Some placeholder content in a paragraph below the heading and date.
List group item headingMon
Some placeholder content in a paragraph below the heading and date.
List group item headingWed
Some placeholder content in a paragraph below the heading and date.
List group item headingTues
Some placeholder content in a paragraph below the heading and date.
List group item headingMon
Some placeholder content in a paragraph below the heading and date.
Call for Papers
When submitting papers for potential publication in IJESD, please submit an original editable file in .doc style file. All figures, tables, and equations, etc., should be embedded into the original file.