STUDY OF THE EFFICIENCY OF WATER PURIFICATION FROM HEAVY METAL IONS WITH MAGNETITE SORBENTS

  • I.M. Trus National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
  • M.D. Gomelia National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
  • T.V. Krysenko National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
  • Ye.S. Bulhakov National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
Keywords: magnetite, heavy metal ions, sorption, ion exchange, complex formation

Abstract

The process of water treatment from heavy metal ions on sorbents with magnetic properties was investigated. Samples of magnetite obtained at a ratio of the concentrations of iron (II) ions and iron (III) 1 : 2; 1 : 1 and 2 : 1, and samples modified with sodium sulfide were used. The effect of pH on the sorption efficiency of heavy metal ions on magnetite was studied. It was shown that the sorption capacity of magnetite towards heavy metal ions, as well as the efficiency of water treatment from these compounds, increases with an increase of the [Fe2+]/[Fe3+] ratio from 1 : 2 to 2 : 1. Sorption capacity of magnetite increases with increasing pH due to partial hydrolysis of heavy metal ions. Also sorption capacity of magnetite increases significantly if modified it with guanidine, thiosemicarbazide, and sodium sulfide. At the same time, the sorbent provides a high degree of water purification from heavy metal ions while reducing the metal concentrations to several µg/dm3. Ref. 12, Fig. 5, Tab. 1.

Author Biographies

I.M. Trus, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv

Candidate of Technical Sciences

M.D. Gomelia, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv

Doctor of Technical Sciences

T.V. Krysenko, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv

Candidate of Technical Sciences

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Published
2020-03-20
How to Cite
Trus, I., Gomelia, M., Krysenko, T., & Bulhakov, Y. (2020). STUDY OF THE EFFICIENCY OF WATER PURIFICATION FROM HEAVY METAL IONS WITH MAGNETITE SORBENTS. Energy Technologies & Resource Saving, (1), 46-51. https://doi.org/10.33070/etars.1.2020.6
Section
Environment protection