Dalia M. Saad, Ewa Cukrowska
A continuous fixed-bed adsorption study was carried out using phosphonated cross-linked polyethylenimine as an adsorbent for the removal of uranium (U) from aqueous solutions. The objective was to evaluate the effect of inlet metal ion concentration (40, 70, and 100 mg L-1), feed flow rate (1, 2, and 3 mL min-1), and polymer bed height (2.5, 3.2, and 4.5 cm) on the breakthrough characteristics of the fixed-bed adsorption system at pH 2. The methodology included constructing breakthrough curves and applying various models to describe the process dynamics. The results demonstrated that breakthrough time increased with bed height but decreased with higher influent U concentration and flow rate. Upon modelling the adsorption dynamics, it was found that the Thomas and Yoon–Nelson models provided the best fit for the observed data under the tested conditions. This study contributes valuable insights into the optimization of uranium removal from contaminated aqueous sources using specialized adsorbents.
@article{ee88b37a-88a5-4d94-ab0d-bfea3133cca9,
title={Column adsorption studies for the removal of U by phosphonated cross-linked polyethylenimine: modelling and optimization},
author={Dalia M. Saad and Ewa Cukrowska},
year={2013},
language={en}
}TY - JOUR TI - Column adsorption studies for the removal of U by phosphonated cross-linked polyethylenimine: modelling and optimization AU - Dalia M. Saad AU - Ewa Cukrowska PY - 2013 LA - en ER -
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