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STUDY OF THE EFFICIENCY OF ELECTROFLOTATION PROCESS ON A MIXTURE OF HEAVY HYDROXIDES AND NONFERROUS METALS IN VARIOUS ELECTROLYTES

1 Hein Thu Aung
Co-authors:
1 Aung Pyae 1 Than Zaw Htay 1 Kolesnikov Artem Vladimirovich
Institution:
1 Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, Moscow, 125047 Russia, spiritlay@yandex.ru
Conference:
29th International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 20 - 22, 2020
Proceedings:
Proceedings 29th International Conference on Metallurgy and Materials
Pages:
1019-1023
ISBN:
978-80-87294-97-0
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2020.3600
Published:
27th July 2020
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
558 views / 333 downloads
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Abstract

The features of electroflotation extraction of a mixture of heavy hydroxides and non-ferrous metals (Fe2+, Ni2+, Zn2+, Co2+, Cu2+) from a five-component system in the presence of various background electrolytes were studied. The influence of the nature of various background electrolytes on the kinetics of electroflotation extraction of the mixture of the studied hydroxides at pH=10 was established. It is shown that the addition of NaCl electrolyte can increase the efficiency and stabilize the electroflotation process of extraction of hard-to-dissolve heavy and non-ferrous metal compounds as part of multi-component systems from the wastewater of various electroplating plants, the recovery rate can reach to 99%.

Keywords: Electroflotation, filtration, waste water, non-ferrous metals

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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