Rashid, Shahidah Nusailah and Hizaddin, Hanee F. and Hayyan, Adeeb and Chan, Shee En and Hasikin, Khairunnisa and Razak, Sarah Abdul and Mokhtar, Mohd Istajib and Azizan, Muhammad Mokhzaini (2024) A kinetic study of ex-situ soil remediation by nickel extraction using natural deep eutectic solvent. Environmental Technology, 45 (23). pp. 4820-4833. ISSN 0959-3330, DOI https://doi.org/10.1080/09593330.2023.2283093.
Full text not available from this repository.Abstract
Using natural deep eutectic solvents (NADESs) as a green reagent is a step toward producing environmentally friendly and sustainable technology. This study screened three natural DESs developed using quaternary ammonium salt and organic acid to analyse their capability to extract nickel ions from contaminated mangrove soil, which are ChCl: Acetic Acid (ChCl-AceA), ChCl: Levulinic Acid (ChCl-LevA), and ChCl: Ethylene Glycol(ChCl-Eg) at molar ratio 1:2. The impact of various operating parameters such as washing agent concentration, pH solution, and contact time on the NADES performance in the dissolution of Ni ions batch experiments were performed. The optimal soil washing conditions for metal removal were 30% and 15% concentration, a 1:5 soil-liquid ratio, and pH 2 of ChCl-LevA and ChCl-AceA, respectively. A single removal washing may remove 70.8% and 70.0% Ni ions from the contaminated soil. The dissolution kinetic of Ni ions extraction onto NADES was explained using the linear kinetic pseudo and intraparticle mass transfer diffusion models. The kinetic validation demonstrates a good fit between the experimental and pseudo-second-order Lagergren data. The model's maximum Ni dissolution capacity, Qe are 51.56 mg g(-1) and 52.00 mg g(-1) of ChCl-LevA and ChCl-AceA, respectively. The synthesised natural-based DES has the potential to be a cost-effective, efficient, green alternative extractant to conventional solvent extraction of heavy metals. GRAPHICS]
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education Malaysia through MRUN Young Researchers GrantScheme (MY-RGS) (MR001-2019) |
| Uncontrolled Keywords: | Natural deep eutectic solvents (NADES); nickel; mangrove conservation; pollution research; soil washing |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Faculty of Engineering > Biomedical Engineering Department Faculty of Engineering > Department of Chemical Engineering Faculty of Science > Institute of Biological Sciences Faculty of Science > Department of Science and Technology Studies |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 09 Dec 2024 06:58 |
| Last Modified: | 09 Dec 2024 06:58 |
| URI: | http://eprints.um.edu.my/id/eprint/47145 |
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