Skip to main content
SpringerLink
Log in

Sorption of Tc(IV) and Tc(VII) on Soils: Influence of Humic Substances

  • Published:
Journal of Radioanalytical and Nuclear Chemistry Aims and scope Submit manuscript

Abstract

The technetium sorption behaviour in different samples of soils was studied under aerobic conditions. Tc(VII) was reduced to Tc(IV) by Sn2+ ions. About 99% of reduced technetium is absorbed by the soils under investigation. Sorption of TcO4 − was studied in short-term (1-hour) and long-term (1-month) experiments. Sorption of TcO4 − in presence of sodium humate (Aldrich) was generally lower than from pure water (from 99% to 12%) and depends on the depth of origin of the ground. Immobilisation of TcO4 − after sorption on superficial sample of soils was studied by paper chromatography. Oxidation of Tc(IV) in presence of NO3 − and NO2 − (concentration range 10−1–10−5 mol·dm−3) ions was studied as a function of time and concentration of NO3 − and NO2 − ions. The content of Tc(IV) in NO3 − and NO2 − solutions decreases with time (46 hours) relatively slowly.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. R. E. Wildung, K. M. McFadden, T. R. Garland, J. Environ. Qual., 8 (1979) 156.

    Google Scholar 

  2. J. Henrot, Health Phys., 57 (1989) 239.

    Google Scholar 

  3. K. Tagami, S. Uchida, Chemosphere, 33 (1996) 217.

    Google Scholar 

  4. L. Van Loon, M. Stalmans, A. Maes, A. Cremers, M. Cogneau, Technetium in the environment, G. Desmet, C. Myttenaere (Eds), Elsevier Applied Science Publishers, London 1986, p. 143.

    Google Scholar 

  5. T. Sekine, A. Watanabe, K. Yoshihara, J. I. Kim, Radiochim. Acta, 63 (1993) 87.

    Google Scholar 

  6. B. JurÁni, in: Evaluation of Ecotoxicological Factors in SR, their Minimization and Modeling in the Environmental Geoinformation System, Final Report Govm. Task ŠO 05/1995, J. Krcho (Ed.), Faculty of Natural Sciences, Comenius University Bratislava, 1999 (in Slovak).

  7. M. Kumata, T. Vandergraaf, Radiokhimiya, 39 (1997) 313.

    Google Scholar 

  8. A. Maes, L. Capon. Reduction of Technetium in Solution: Influence of Ferrous Iron, Minerals Phases and Organic Matter, in: Effects of Humic Substances on the Migration of Radionuclides: Complexation and Transport of Actinides, First technical progress report of the EC-project No.:F14W-CT96-0027 Report FZKA 6124, G. Buckau (Ed.), Karlsruhe, 1998.

Download references

Author information

Authors and Affiliations

  1. Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University, SK-842 15, Bratislava, Slovak Republic

    P. Tkáč

  2. Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University, SK-842 15, Bratislava, Slovak Republic

    R. Kopunec & F. Macášek

  3. Oncology Institute of St. Elizabeth, Nuclear Medicine Clinics, SK-812 50, Bratislava, Slovak Republic

    S. Skrašková

Authors
  1. P. Tkáč
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. Kopunec
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. F. Macášek
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. S. Skrašková
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Tkáč, P., Kopunec, R., Macášek, F. et al. Sorption of Tc(IV) and Tc(VII) on Soils: Influence of Humic Substances. Journal of Radioanalytical and Nuclear Chemistry 246, 527–531 (2000). https://doi.org/10.1023/A:1006776503353

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1006776503353

Keywords

Search

Navigation