REMOVAL OF COPPER FROM DILUTED AQUEOUS SOLUTIONS USING AN IMINODIACETIC ACID CHELATING ION-EXCHANGE RESIN IN A FIXED-BED COLUMN

Authors

  • Irina BLEOTU Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Corresponding author: dorneanu@chem.ubbcluj.ro.
  • Emilia GÎLCĂ Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Corresponding author: dorneanu@chem.ubbcluj.ro.
  • Sorin-Aurel DORNEANU Faculty of Chemistry and Chemical Engineering; Interdisciplinary Research Institute on Bio Nano Sciences; Research Center of Electrochemistry and Nonconventional Materials, Babes-Bolyai University, Cluj-Napoca, Romania. Email: dorneanu@chem.ubbcluj.ro. https://orcid.org/0000-0002-2690-6383
  • Cosmin CĂŢĂNAŞ Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Corresponding author: dorneanu@chem.ubbcluj.ro.
  • Petru ILEA Interdisciplinary Research Institute on Bio Nano Sciences, Babeş-Bolyai University, Cluj-Napoca, Romania. Email: pilea@chem.ubbcluj.ro. https://orcid.org/0000-0002-4334-2735

Keywords:

Copper removal, Fixed-bed column, Kinetics, Regeneration

Abstract

In this study, the copper removal was investigated in a fixed-bed column using a iminodiacetic acid chelating ion exchange resin (Purolite S930Plus). The influence of the resin bed height (3-6 cm) over the removal process was evaluated at a flow rate of 5 mL/min and initial Cu(II) concentration of 0.8 mM. The obtained results were analysed by linear regression using the most common sorption kinetic models such as Yoon-Nelson, Adam-Bohart, and Clark. The experimental data were in good agreement with Yoon and Nelson model. Also, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were employed to study the morphologies and the composition of the resin surface before and after sorption. The column regeneration studies were performed using 3 N H2SO4 solution. The tested resin presented a good regeneration capacity and can be successfully used to remove copper ions from diluted wastewaters.

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www.purolite.com/RelID/619508/isvars/default/purolite%C2%AE_s910.htm.

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Published

2015-09-30

How to Cite

BLEOTU, I. ., GÎLCĂ, E. ., DORNEANU, S.-A. ., CĂŢĂNAŞ, C. ., & ILEA, P. . (2015). REMOVAL OF COPPER FROM DILUTED AQUEOUS SOLUTIONS USING AN IMINODIACETIC ACID CHELATING ION-EXCHANGE RESIN IN A FIXED-BED COLUMN. Studia Universitatis Babeș-Bolyai Chemia, 60(3), 163–172. Retrieved from https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8477

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