Performance Evaluation of Titanium Dioxide Nanocomposite Membrane in Removal of Lead from Aqueous Solutions

Mohammad Gheimasi, Mohammad Hosseini; Kiani Sadr, Maryam; Lorestani, Bahareh; Cheraghi, Mehrdad; Emadzadeh, Darush

doi:10.22034/jewe.2021.303033.1621

Document Type : Research Paper

Authors

¹ Ph.D Student, Department of Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran

² Assist. Professor, Islamic Azad University, College of Basic Science, Department of Environment, Hamedan, Iran

³ Associate Professor, Department of Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran

⁴ Assoc. Professor, Department of Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran

⁵ Assist. Professor, Department of Chemical Engineering, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran

https://doi.org/10.22034/jewe.2021.303033.1621

Abstract

Among the methods used to remove heavy metals are membrane processes that, with less use of chemicals, are able to quickly produce high-quality penetration. In this study, a nanocomposite membrane with the ability to separate lead was used. The black titanium dioxide nanoparticle was synthesized using the pyrolysis method. Adsorption experiments were performed using a nanofiltration unit. The results of lead adsorption isotherms showed that the lead adsorption process using the membrane follows the Langmuir model with a correlation coefficient of 0.995. The results of the study of lead metal adsorption kinetics showed that the process of adsorption of lead by the adsorbent follows the quasi-second order kinetics so that the correlation coefficient of the second-order quasi-model is equal to 0.999 which is compared with the quasi-correlation coefficient. The maximum and minimum fluxes between different membranes were related to 0.1 mg/l of titanium dioxide nanoparticles in terms of time and pressure for 50 and 600 minutes and pressures of 45 and 145 bar, with increasing the initial concentration of pollutants, the percentage of adsorption decreases. This can be due to the delay in balancing the adsorbent and the contaminant.

Keywords

Main Subjects

water resource management

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Environment and Water Engineering

Performance Evaluation of Titanium Dioxide Nanocomposite Membrane in Removal of Lead from Aqueous Solutions

References

References

Volume 8, Issue 2
July 2022
Pages 304-316

Performance Evaluation of Titanium Dioxide Nanocomposite Membrane in Removal of Lead from Aqueous Solutions

References

References

Volume 8, Issue 2July 2022Pages 304-316

Volume 8, Issue 2
July 2022
Pages 304-316