Effect of cobalt and manganese on radionuclides adsorption by modified clay sorbents

Authors

  • Маріанна Анатоліївна Петрова Lviv State University of Life Safety 35 Kleparivska Str. Lviv, Ukraine, 79000, Ukraine
  • Іван Олександрович Мовчан Lviv State University of Life Safety 35 Kleparivska Str. Lviv, Ukraine, 79000, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2013.19115

Keywords:

radioactive wastes, adsorption, cesium, strontium, cobalt, manganese, modified clay, bentonite

Abstract


The process of decontamination of liquid radioactive wastes, containing Cs-137 and Sr-90, by the sorption method using clay sor­bents, modified by copper and copper-potassium ferrocyanides, and also antimony hydroxide was studied in the paper. The adsorption capacity of samples of the modified clay in the presence of equipment corrosion products, ions of cobalt and manganese, was studied. It was found that the modified clay sorbents are effective in the process of decontamination of liquid radioactive wastes since Cs-137 is re­moved by 99-100 % and Sr-90 - by 70-97 %. Ions of cobalt and man­ganese do not inhibit the adsorption of Cs-137 while the adsorption of strontium is reduced by 5-10 %. Based on the analysis of results of adsorption of Cs-137 in the presence of cobalt, the hypothesis on a significant adsorption capacity of modified clay samples on cobalt was stated.

Author Biographies

Маріанна Анатоліївна Петрова, Lviv State University of Life Safety 35 Kleparivska Str. Lviv, Ukraine, 79000

Candidate of Science (Technical)

Department of Environmental Safety

Іван Олександрович Мовчан, Lviv State University of Life Safety 35 Kleparivska Str. Lviv, Ukraine, 79000

Candidate of Science (Technical)

Department of Environmental Safety

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Published

2013-12-11

How to Cite

Петрова, М. А., & Мовчан, І. О. (2013). Effect of cobalt and manganese on radionuclides adsorption by modified clay sorbents. Eastern-European Journal of Enterprise Technologies, 6(10(66), 24–27. https://doi.org/10.15587/1729-4061.2013.19115

Issue

Vol. 6 No. 10(66) (2013): Ecology. Materials science

Section

Ecology

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Copyright (c) 2014 Маріанна Анатоліївна Петрова, Іван Олександрович Мовчан

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