Remediation of Heavy Metals Using Biomass-Based Adsorbents: Adsorption Kinetics and Isotherm Models

Okon-Akan Omolabake Abiodun (), Oluwasogo Oluwaseun, Olaoye Kayode Oladayo, Omoogun Abayomi, Akpowu Arubi George, Emmanuel Opatola, Robinson Friday Orah, Efe Jeffery Isukuru, Ifunanya Chiamaka Ede, Oluwadara Temitayo Oluwayomi, Jude A. Okolie and Ibrahim Asiata Omotayo ()
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Okon-Akan Omolabake Abiodun: Forestry Research Institute of Nigeria, Ibadan, Nigeria
Oluwasogo Oluwaseun: Soil Science Laboratory, School of Applied Biosciences, Kyungpook National University, Sangju-si 37224, Republic of Korea
Olaoye Kayode Oladayo: Forestry Research Institute of Nigeria, Ibadan, Nigeria
Omoogun Abayomi: Department of Chemistry, University of Lagos, Lagos, Nigeria
Akpowu Arubi George: Department of Chemistry, Federal University of Agriculture, Abeokuta 111101, Nigeria
Emmanuel Opatola: Department of Materials and Metallurgical Engineering, University of Ilorin, Ilorin, Nigeria
Robinson Friday Orah: Department of Chemistry, University of Ibadan, Ibadan 200132, Nigeria
Efe Jeffery Isukuru: Department of Environmental Management and Toxicology, Federal University of Petroleum Resources, Effurun 330102, Nigeria
Ifunanya Chiamaka Ede: Department of Chemistry, Federal University of Technology, Minna, Nigeria
Oluwadara Temitayo Oluwayomi: Department of Chemistry, University of Ibadan, Ibadan 200132, Nigeria
Jude A. Okolie: Gallogly College of Engineering, University of Oklahoma, Norman, OK 73019, USA
Ibrahim Asiata Omotayo: Pure and Applied Chemistry Department, Ladoke Akintola University of Technology, Ogbomosho 210214, Nigeria

Clean Technol., 2023, vol. 5, issue 3, 1-27

Abstract: This study aims to comprehensively investigate the current advances in water treatment technologies for the elimination of heavy metals using biomass-based adsorbents. The enhancement of adsorption capacity in biomass materials is achieved through surface modification, which increases their porosity and surface area. The study therefore focuses on the impact of different surface modification techniques on the adsorption capacity, as well as the evaluation of adsorptive removal techniques and the analysis of various isotherm and kinetics models applied to heavy metal contaminants. The utilization of kinetic and isotherm models in heavy metal sorption is crucial as it provides a theoretical background to understand and predict the removal efficiency of different adsorbent materials. In contrast to previous studies, this research examines a wide range of adsorbent materials, providing a comprehensive understanding of their efficacy in removing heavy metals from wastewater. The study also delves into the theoretical foundations of the isotherm and kinetics models, highlighting their strengths, limitations, and effectiveness in describing the performance of the adsorbents. Moreover, the study sheds light on the regenerability of adsorbents and the potential for their engineering applications. Valuable insights into the state-of-the-art methods for heavy metal wastewater cleanup and the resources required for future developments were discussed.

Keywords: adsorption; biomass; kinetic; isotherm; heavy metals; biosorption (search for similar items in EconPapers)
JEL-codes: Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2023
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