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Energy consumption of direct current galvanostatic zinc removal from viscose production wastewater

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Abstract

The work provided information on the energy consumption Ee by direct current galvanostatic separation of zinc from ZnSO4 solutions under conditions close to the electrodeposition of zinc from viscose production wastewaters. The Ee values were displayed depending on the corresponding values of current densities i and electrical conductivities of solutions κ in the form of 3D diagrams. The diagrams showed that Ee grew significantly with increasing i, with a significant influence of κ. In the analysis of the present processes and other desirable directions of research, both previous findings from polarographic/voltammetric electrolysis (usually collected at lower current densities) and the outlined new treatments to technological/separation electrolysis (on the contrary, usually at higher values of current densities) were applied. The obtained data can serve as a reference data in further research to reduce the energy consumption of the technology used.

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Acknowledgements

This work was supported by Student Grant Competition 2022 (SGS_2022_001) and by the project SD373001/82/30352 (2016) of the University Pardubice.

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Authors and Affiliations

  1. Institute of Environmental and Chemical Engineering, University of Pardubice, Pardubice, Czech Republic

    Ladislav Novotný, Aneta Karásková, Gabriela Kuchtová, Petr Mikulášek & Libor Dušek

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  1. Ladislav Novotný
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  2. Aneta Karásková
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  3. Gabriela Kuchtová
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  4. Petr Mikulášek
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  5. Libor Dušek
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Correspondence to Gabriela Kuchtová.

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This work is dedicated to the 100th anniversary of the discovery of polarography by Nobel Prize winner Prof. Jaroslav Heyrovsky.

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Novotný, L., Karásková, A., Kuchtová, G. et al. Energy consumption of direct current galvanostatic zinc removal from viscose production wastewater. Monatsh Chem 153, 1111–1117 (2022). https://doi.org/10.1007/s00706-022-02915-x

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  • DOI: https://doi.org/10.1007/s00706-022-02915-x

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