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COMPARISON OF AFFINITY OF SOIL AND LIGNITIC HUMIC ACIDS TO Cu(II) AND Cd(II) IONS

COMPARISON OF AFFINITY OF SOIL AND LIGNITIC HUMIC ACIDS TO Cu(II) AND Cd(II) IONS. Gabriela Baran č íková 1 Mikuláš Madaras 1 Jarmila Makovníková 2. Humic Substances Seminar VII March 1 7 - 19 , 200 4 Northeastern University Boston, MA, USA. Miloslav Peka ř Martina Klu č áková.

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COMPARISON OF AFFINITY OF SOIL AND LIGNITIC HUMIC ACIDS TO Cu(II) AND Cd(II) IONS

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  1. COMPARISON OF AFFINITY OF SOIL AND LIGNITIC HUMIC ACIDS TO Cu(II) AND Cd(II) IONS Gabriela Barančíková1 Mikuláš Madaras1 Jarmila Makovníková2 Humic Substances Seminar VIIMarch 17-19, 2004Northeastern UniversityBoston, MA, USA Miloslav Pekař Martina Klučáková Soil Science and Conservation Research Institute 1Research Station Prešov 2Research Station Banská Bystrica Slovakia Institute of Physicaland Applied Chemistry Faculty of Chemistry Brno University ofTechnology Czech Republic

  2. Europe and we CZ SK

  3. Locations: source & scientists lignite mine

  4. Soil contamination• remediation

  5. First task selected humic acids + selected metal ions affinity

  6. Soils • Calcaric Fluvisols on carbonated meadow sediments • Gleyic Fluvisols on non-carbonated meadow sediments • Calcaric Chernozems on loess • Haplic Luvisols on loess loams • Dystric Cambisols on flysch

  7. Lignite Average composition (weight %) Composition of combustible matter (weight %)

  8. Humic acids

  9. Adsorption isotherms chernozem fluvisol 1 luvisol fluvisol 2 cambisol lignite cadmium

  10. Adsorption isotherms chernozem fluvisol 1 luvisol fluvisol 2 cambisol lignite copper

  11. Relative adsorbed amount cadmium chernozem fluvisol 1 luvisol fluvisol 2 cambisol lignite

  12. Relative adsorbed amount copper chernozem fluvisol 1 luvisol fluvisol 2 cambisol lignite

  13. chernozem fluvisol 1 luvisol fluvisol 2 cambisol lignite Desorption cadmium

  14. Desorption – total cadmium chernozem fluvisol 1 luvisol fluvisol 2 cambisol lignite

  15. Desorption chernozem fluvisol 1 luvisol fluvisol 2 cambisol lignite copper

  16. Desorption – total copper chernozem fluvisol 1 luvisol fluvisol 2 cambisol lignite

  17. Conclusions • lignite humic acids work • comparable or better affinity, strength • explanations needed (?) • long-term adsorption/desorption

  18. thanks... (soil &lignite) ...for your attention

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