Title of article
Cadmium Removal from Phosphoric Acid by a Process Combining Ion Exchange on Resin and Electrodialysis
Author/Authors
Mecibah, Wahiba Department of Technology - Faculty of Technology - University August 20, 1955 – Skikda, Algeria , Delimi, Rachid Laboratory of Water Treatment and Valorization of Industrial Wastes - Department of Chemistry - Badji-Mokhtar University, Algeria
Pages
13
From page
956
To page
968
Abstract
The cadmium removal from phosphoric acid using a hybrid process combining ion
exchange resin and electrodialysis called electropermutation was investigated. Continuous
electropermutation has been shown to be more effective than conventional electrodialysis with
a cadmium removal rate of 70.70% versus 13.70%. The study of the influence of some
operating parameters on continuous electropermutation has revealed that the cadmium removal
efficiency increases with the applied current density, and the flow rate of the feed solution.
However, the efficiency decreases as the phosphoric acid and cadmium concentration
increases. The cation exchange resin and the electroregeneration electrolyte nature also have
an effect on the continuous electropermutation efficiency. The Duolite C20 resin and the HNO3
electroregeneration electrolyte were found to be more effective in removing cadmium from
phosphoric acid by continuous electropermutation.
Keywords
Continuous electropermutation , Electrodialysis , Cadmium , Wet process , Phosphoric acid
Journal title
Astroparticle Physics
Serial Year
2019
Record number
2470714
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