Ling, L. C. and Buthiyappan, Archina and Abdul Raman, Abdul Aziz and Jabar, Noorul Huda Abdul and Kuldip Singh, Ramesh Singh (2022) Performance investigation of electrocoagulation and Electro-Fenton processes for high strength landfill leachate: operational parameters and kinetics. Chemical Papers, 76 (5). pp. 2991-3003. ISSN 2585-7290, DOI https://doi.org/10.1007/s11696-021-02052-5.
Full text not available from this repository.Abstract
Leachate landfills contain significant amounts of heavy metals, organic pollutants, inorganic salts, ammonia nitrogen, and chlorinated organics, which negatively influence the environment. Therefore, it is a must to treat them before being released into the environment efficiently. This study investigated the effectiveness of batch Electrocoagulation (EC) and Electro-Fenton (EF) processes to treat the high-strength landfill leachate. The effect of operating parameters, including initial pH of the leachate, contact time, and a mass ratio of COD: H2O2, was investigated on the removal efficiencies of chemical oxygen demand (COD) and color from leachate. The result shows that, under the optimal pH 6 and reaction time of 17.5 min, EC achieved COD and color removal of 66.2% and 94.4%, respectively. However, EF obtained a higher COD removal of 69.8% and 88.1% of color removal at pH of 9 and COD: H2O2 Ratio of 9.5 within 6.7 min. The result revealed that both processes are reported to remove more than 80% color. However, EF obtained a higher degradation rate than EC. Besides, the EF process also generated 47.4% less sludge than the EC process under the optimal conditions. Cost estimation indicates that EF is less expensive (0.48 USD) than electrocoagulation (0.75 USD). In summary, Electro-Fenton is a more reliable, cost-effective, and energy-efficient method of removing landfill leachate than electrocoagulation, requiring less treatment time and producing less sludge.
| Item Type: | Article |
|---|---|
| Funders: | University Malaya Research University Grant (RU Grant) [Grant No: GPF060A-2018] |
| Uncontrolled Keywords: | Landfill leachate; Electrocoagulation; Electro-Fenton; Cost estimation; Sludge; Iron electrode |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of Engineering > Department of Chemical Engineering Faculty of Engineering > Department of Mechanical Engineering Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 06 Sep 2023 04:02 |
| Last Modified: | 06 Sep 2023 04:02 |
| URI: | http://eprints.um.edu.my/id/eprint/43060 |
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