Abatan, Olubunmi G. and Alaba, Peter A. and Oni, Babalola A. and Akpojevwe, Kelvin and Efeovbokhan, Vincent and Abnisa, Faisal (2020) Performance of eggshells powder as an adsorbent for adsorption of hexavalent chromium and cadmium from wastewater. SN Applied Sciences, 2 (12). ISSN 2523-3963, DOI https://doi.org/10.1007/s42452-020-03866-w. (In Press)
Full text not available from this repository.Abstract
This study explores the kinetic and equilibrium performance of eggshell as an adsorbent for hexavalent chromium and cadmium ion removal from wastewater. The experimental removal of the two metal ions was performed batch-wise and the influence of variables like initial metal loading, pH, contact time, and adsorbent dose. Fourier-transform infrared spectroscopy spectra reveals that chromium and cadmium ion interact with carbonyl, carboxylic, hydroxyl functional groups in eggshell. The best pH is 6, and the adsorption capacity improves with increasing initial concentration of adsorbate, pH, contact time and adsorbent dosage for chromium and cadmium ion. Pseudo-second-order kinetics is the most suitable model for the removal of chromium and cadmium ion, while the equilibrium agrees with Freundlich isotherms. These outcomes reveal that eggshell is a promising cheap adsorbent for adsorption of toxic heavy metals like chromium and cadmium ion from aqueous solution.
| Item Type: | Article |
|---|---|
| Funders: | Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah |
| Uncontrolled Keywords: | Eggshell; Adsorption; Kinetics; Hexavalent chromium; Divalent cadmium |
| Subjects: | Q Science > Q Science (General) T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering > Department of Chemical Engineering |
| Depositing User: | Mrs. Siti Mawarni Salim |
| Date Deposited: | 20 Oct 2022 02:56 |
| Last Modified: | 20 Oct 2022 02:56 |
| URI: | http://eprints.um.edu.my/id/eprint/31604 |
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