PDF

Phosphonated cross-linked polyethylenimine for selective removal of uranium ions from aqueous solutions

Dalia M. G. Saad, Ewa M. Cukrowska

2012enadsorptionuraniumpolymerwastewaterchemisorption

Abstract

Language:

Among many remediation techniques for metal ion removal, polymeric adsorbents are efficient and widely applied. This has made them comparable with other remediation techniques in terms of technical and economic efficiency, feasibility as well as green technology. This study was dedicated to the development of an insoluble modified chelating polymer for use as an adsorbent for abstraction of uranium from wastewaters. Cross-linked polyethylenimine (CPEI) was phosphonated by phosphorous acid for selective removal of uranium ions. The binding affinity of the phosphonated cross-linked polyethylenimine (PCPEI) to uranium ions was assessed as well as its ability to be regenerated for reuse. It exhibited high removal percentage for uranium ions up to 99% with high selectivity even in the presence of competing ions (Mn, Ni, As). The Freundlich isotherm was found to be the best fit describing the adsorption process of uranyl ions onto the PCPEI. The pseudo-second-order equation was found to better explain the adsorption kinetics, implying chemisorption. The thermodynamic study of the adsorption revealed high activation energies which confirmed the chemisorption as the mechanism of adsorption.

Download

Cite This Work

@article{36fc22a7-f766-4d36-915d-6aa0f660d515,
  title={Phosphonated cross-linked polyethylenimine for selective removal of uranium ions from aqueous solutions},
  author={Dalia M. G. Saad and Ewa M. Cukrowska},
  year={2012},
  language={en}
}
TY  - JOUR
TI  - Phosphonated cross-linked polyethylenimine for selective removal of uranium ions from aqueous solutions
AU  - Dalia M. G. Saad
AU  - Ewa M. Cukrowska
PY  - 2012
LA  - en
ER  -

Similar Items

Electrochemical techniques for a cleaner

Important advances in electrochemical engineering technology over the last three decades have fostered the development of a lternative methods to alle

2026enPDF

Hydrometallurgy in the Past Decades - A Personal View

Fathi Habashi

In the 1940s hydromtallurgy benefitted a great deal from Manhattan Project in USA, then in the 1950s a new technology was introduced by Sherritt-Gordo

2015enPDF

ASM International®

Arthur C. Reardon

This publication, edited by Arthur C. Reardon and published by ASM International®, serves as a comprehensive guide in the field of materials science.

2011enPDF

Plant auditing: a powerful tool for improving metallurgical plant performance

Deepak Malhotra

This work discusses the essential components of a rigorous auditing process aimed at enhancing metallurgical plant performance. The objective is to id

2015enPDF

Metallurgical Plant Design and Operating Strategies

P Card, J Canterford

This document presents a collection of papers from the METPLANT 2011 conference focusing on metallurgical plant design and operating strategies. The o

2011enPDF

Comparative study for leaching processes of uranium, copper and cadmium from gibbsite ore material of Talet Seleim, Southwestern, Sinai, Egypt

Walaa A. Kassab

In this paper, leaching characteristics are presented, and a cost-effective process for extracting uranium, copper, and cadmium from Talet Seleim’s Gi

2022enPDF