EVALUATION OF THE EFFECTIVENESS OF BAROMEMBRANE METHODS OF PURIFICATION WATER FROM HEAVY METAL IONS

  • N.D. Gomelya National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
  • V.P. Ivanova National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
Keywords: nanofiltration, membranes, heavy metals, permeate, concentrate, water purification

Abstract

Processes of membrane water purification from heavy metal ions in highly diluted solutions were studied. It was shown that the productivity of the nanofiltration membrane OPMN-P in filtering highly diluted cadmium sulfate solutions main depends on the operating pressure and is close to the values obtained when distilled water is used. In the case of separation of copper, cadmium and lead ions at concentrations of – 0.1 mg/dm3, the membrane selectivity was very low and did not exceed 10 %. In some cases when complexons were used, the selectivity of the membrane was as high as 100 % while the initial concentration of metal ions decreased to 10–8 mg/dm3. In this case, metal ions accumulated in concentrates in equivalent amounts, which is important for concentrating metal ion solutions in cases where super super dilute solutions are analyzed. Bibl. 11, Fig. 7, Tab. 3.

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Author Biographies

N.D. Gomelya, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv

Doctor of Technical Sciences, Professor

V.P. Ivanova, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv

PhD Student

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Published
2018-12-20
How to Cite
Gomelya, N., & Ivanova, V. (2018). EVALUATION OF THE EFFECTIVENESS OF BAROMEMBRANE METHODS OF PURIFICATION WATER FROM HEAVY METAL IONS. Energy Technologies & Resource Saving, (1), 62-68. https://doi.org/10.33070/etars.1.2018.08
Section
Environment protection