Fixed-Bed Studies of Landfill Leachate Treatment Using Chitosan-Coated Carbon Composite

Fatima Batool; Tonni Agustiono Kurniawan; Ayesha Mohyuddin; Mohd Hafiz Dzarfan Othman; Abdelkader Anouzla; Christia Meidiana; Hui Hwang Goh; Kit Wayne Chew

doi:10.3390/w15122263

Water (Jun 2023)

Fixed-Bed Studies of Landfill Leachate Treatment Using Chitosan-Coated Carbon Composite

Fatima Batool,
Tonni Agustiono Kurniawan,
Ayesha Mohyuddin,
Mohd Hafiz Dzarfan Othman,
Abdelkader Anouzla,
Christia Meidiana,
Hui Hwang Goh,
Kit Wayne Chew

Affiliations

Fatima Batool: Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
Tonni Agustiono Kurniawan: Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
Ayesha Mohyuddin: Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
Mohd Hafiz Dzarfan Othman: Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor Bahru, Malaysia
Abdelkader Anouzla: Department of Process Engineering and Environment, Faculty of Science and Technology, University Hassan II of Casablanca, Mohammedia 28830, Morocco
Christia Meidiana: Department of Regional and Urban Planning, Faculty of Engineering, Brawijaya University, Malang 65145, Indonesia
Hui Hwang Goh: School of Electrical Engineering, Guangxi University, Nanning 530004, China
Kit Wayne Chew: School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University (NTU), Singapore 637459, Singapore

DOI: https://doi.org/10.3390/w15122263
Journal volume & issue: Vol. 15, no. 12
p. 2263

Abstract

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The feasibility of a chitosan-coated coconut-shell (CS) carbon composite for landfill leachate treatment in a fixed-bed study was investigated in terms of COD and NH3-N removal. The surface of the composite was characterized using SEM, FT-IR, and XRD to assess any changes before and after column operations. To enhance its cost-effectiveness, the saturated composite was regenerated using NaOH. The results showed that the composite had significantly better removal of both COD and NH3-N, as compared to CS and/or chitosan (p ≤ 0.05; ANOVA test), respectively. The breakthrough curve obtained from the fixed-bed studies exhibited an ideal “S” shape. The breakthrough points for the adsorbents followed the order of CS at BV 76 3-N effluent limits of less than 200 and 5 mg/L, respectively, as mandated by legislation. Nonetheless, the findings suggest that low-cost composites derived from unused resources can be employed as effective adsorbents for wastewater treatment.

Published in Water

ISSN: 2073-4441 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Hydraulic engineering; Technology: Environmental technology. Sanitary engineering: Water supply for domestic and industrial purposes
Website: http://www.mdpi.com/journal/water/

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