Rumjit, Nelson Pynadathu and Samsudin, Nurul Asma and Low, Foo Wah and Thomas, Paul and Lai, Chin Wei and Chellam, Padmanaban Velayudhaperumal and Johan, Mohd Rafie and Lim, Ying-Chin and Amin, Nowshad and Tiong, Sieh Kiong Kinetic and isotherm studies on adsorptive removal of sulfates by cotton shell derived biochar: Recovery of sulfates from marcasite soil. Sustainable Chemistry and Pharmacy, 20. ISSN 2352-5541, DOI https://doi.org/10.1016/j.scp.2020.100361.
Full text not available from this repository.Abstract
This work illustrates the potential applications of the raw cotton shell (RCS) and cotton shell biochar (CSB) in the remediation of sulfate contaminants from aqueous solvents. Comprehensively, optimal batch and adsorption kinetics of sulfate by RCS and CSB were intensively analyzed and determined by varying the adsorption parameters. For RCS, the optimal series of parameters were at (pH-7, sulfate conc-150 mgL(-1), adsorbent dose- 0.5 g and time-150 min). While for CSB optimum conditions were at (pH-9.8, sulfate conc-100 mgL(-1), dosage- 0.1 g and time-90 min). The maximum adsorption efficiency for both RCS and CSB was achieved at 86.47% and 90.77%, respectively. Sulfate adsorption by RCS and CSB was examined by isotherm models and kinetic studies. The data are best suited to the Langmuir isotherm model with the highest RCS and CSB sulfate adsorption capability of 61.35 and 153.85 mg g(-1) and followed pseudo-second-order kinetics. Box-Behnken design (BBD) based response surface methodology (RSM) model-based analysis of variance test has demonstrated optimum conditions and sulfate adsorption by both RCS and CSB. The recovery studies on sulfates from marcasite soil were evaluated at different doses of RCS and CSB. This study provides insights into the usage of the developed process towards the circular economy of the sulfates.
| Item Type: | Article |
|---|---|
| Funders: | Impact-Oriented Interdisciplinary Research Grant (IIRG018-2019), NANOCAT RU GRANT, Global Collaborative Programme -SATU Joint Research Scheme (ST012-2019), Fundamental Research Grant Scheme (FP023-2020) |
| Uncontrolled Keywords: | Raw cotton shell; Cotton shell biochar; Sulfate adsorption; Kinetic studies; Isotherm |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 13 Sep 2022 07:43 |
| Last Modified: | 13 Sep 2022 07:43 |
| URI: | http://eprints.um.edu.my/id/eprint/34383 |
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