EGG SHELL AS NATURAL SORBENT TO REMOVE CADMIUM IONS FROM SIMULATED WASTEWATER

This research offers the ability to use natural waste as a biosorbent such as eggshells and their efficiency on heavy metals adsorption, like cadmium. Maximum removal was observed at pH 6.0. The efficiency of eggshells for the removal of cadmium was 89.7% at a 5g adsorbent dose. Effect of temperatur...

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Bibliographic Details
Published inJournal of engineering and sustainable development (Online) Vol. 23; no. 6
Main Authors Lahieb Faisal Muhaisen, Farah Faisal Muhaisen, Zainab Munaf Abdulkareem
Format Journal Article
LanguageArabic
Published Mustansiriyah University/College of Engineering 01.11.2019
Subjects
cadmium ions
egg-shells
FTIR
kinetic and isotherm models
thermodynamic
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ISSN2520-0917
2520-0925

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Summary:This research offers the ability to use natural waste as a biosorbent such as eggshells and their efficiency on heavy metals adsorption, like cadmium. Maximum removal was observed at pH 6.0. The efficiency of eggshells for the removal of cadmium was 89.7% at a 5g adsorbent dose. Effect of temperature change has been calculated, and parameters of thermodynamic indicated that the sorption of cadmium is favored at high temperatures and endothermic. FTIR was recorded before and after adsorption to show the number and position of the functional groups available for cadmium binding onto the studied adsorbent. It was found that Freundlich isotherm fitted well to the data; the Pseudo-second order model explains the cadmium kinetics more effectively. The results appeared that cadmium is considerably adsorbed on eggshells and it could be an economic method for the removal of cadmium from aqueous solutions.
ISSN:2520-0917
2520-0925