Removal of Cd (II) from Aqueous Solution using Eggshell as Low Cost Sorbent

International Journal of Applied Chemistry

© 2019 by SSRG - IJAC Journal

Volume 6 Issue 1

Year of Publication : 2019

Authors : Naema S. Yehia and Omar M.Elmakabati

10.14445/23939133/IJAC-V6I1P102

How to Cite?

Naema S. Yehia and Omar M.Elmakabati, "Removal of Cd (II) from Aqueous Solution using Eggshell as Low Cost Sorbent," SSRG International Journal of Applied Chemistry, vol. 6,  no. 1, pp. 11-18, 2019. Crossref, https://doi.org/10.14445/23939133/IJAC-V6I1P102

Abstract:

Cd (II) considered one of the pollutants that significantly affect public health, this report aims at investigating the efficiency of Cd (II) removal from water resources using one of the economic, common domestic wastes, the eggshell (ES). Different doses of eggshell powder were applied to serial concentrations of Cd (II) solutions, after being examined to estimate the main influencing parameters (pH, shaking time, and temperature). ES was subject to Scan Electron Microscope (SEM), Infrared (IR), and Energy Dispersive X-ray (EDX) examination before and after it being applied to Cd (II) solutions. Freundlich and Langmuir models were applied. Thermodynamic parameters namely, change in Gibbs free energy change (ΔGo), enthalpy (ΔHo) and entropy (ΔSo) were calculated. Nearly 100% of Cd2+ ions were removed successfully. The procedure was also applied successfully for removal Cd2+ ions from aqueous and different samples of natural water.

Keywords:

Adsorption isotherms, Eggshell, Natural water; Cadmium (II), Sorption, Thermodynamic parameters.

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