Volume 14, Issue 3 (10-2018)
J Health Syst Res 2018, 14(3): 307-313 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Manouchehritabar H, Ebrahimi A. Comparison of the Efficiency of Activated Carbon Prepared from Oak Cap and Activated Carbon Modified with Magnetite Nanoparticles on Removal of Cadmium in Aqueous Solution. J Health Syst Res 2018; 14 (3) :307-313
URL: http://hsr.mui.ac.ir/article-1-1047-en.html
URL: http://hsr.mui.ac.ir/article-1-1047-en.html
1- - MSc Student, Department of Environmental Engineering, Khuzestan Science and Research Branch AND Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
2- Associate Professor, Environmental Research Center, Research Institute for Primordial Prevention of Non -Communicable Disease, Isfahan University of Medical Sciences, Isfahan AND Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
2- Associate Professor, Environmental Research Center, Research Institute for Primordial Prevention of Non -Communicable Disease, Isfahan University of Medical Sciences, Isfahan AND Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Abstract: (1260 Views)
Background: The removal of cadmium from water sources is necessary due to the inherent degradability and biocompatibility. The aim of this study was to evaluate and compare the performance of activated carbon produced from oak cap before and after modification with magnetic nanoparticles, as adsorbents for the removal of cadmium.Methods: The effect of contact time (5 to 120 minutes), adsorbent dose (1 to 15 g/l), pH (2 to 8), and cadmium concentration (5-50 mg/l) was investigated. The adsorption behavior of cadmium was evaluated using Freundlich and Langmuir models. The effect of time was described via kinetics models. Chemical composition and surface characteristics of adsorbent evaluated using X-ray diffractometry analysis (XRD) and scanning electron microscopy (SEM).Findings: The removal efficiency of conventional and modified activated carbon produced from oak caps under the constant conditions of pH of 8, contact time of 30 minutes, adsorbent dose of 5 g/l, and cadmium concentration of 30 mg/l was 81.13 and 91.32 percent, respectively. Study of isotherm results showed that conventional activated carbon produced from oak caps had a correlation coefficient of 0.98 with Langmuir model, but modified activated carbon with magnetic nanoparticles followed Freundlich model with a correlation coefficient of 0.943. The results of kinetics showed that both sorbent followed the pseudo-second order kinetics, and their equilibrium time was 30 minutes.Conclusion: The activated carbon prepared from oak caps pulp is able to remove cadmium from aqueous solutions, and can be used as a low-cost adsorbent material for treatment of water resources contaminated with cadmium. Moreover, modification with magnetite nanoparticles significantly increases the absorption efficiency.
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2018/10/15 | Published: 2018/10/15
Received: 2020/07/16 | Accepted: 2018/10/15 | Published: 2018/10/15
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
