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COMPARISON OF AFFINITY OF SOIL AND LIGNITIC HUMIC ACIDS TO Cu(II) AND Cd(II) IONS Miloslav Pekař Martina Klučáková Gabriela Barančíková 1 Mikuláš Madaras.

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Presentation on theme: "COMPARISON OF AFFINITY OF SOIL AND LIGNITIC HUMIC ACIDS TO Cu(II) AND Cd(II) IONS Miloslav Pekař Martina Klučáková Gabriela Barančíková 1 Mikuláš Madaras."— Presentation transcript:

1 COMPARISON OF AFFINITY OF SOIL AND LIGNITIC HUMIC ACIDS TO Cu(II) AND Cd(II) IONS Miloslav Pekař Martina Klučáková Gabriela Barančíková 1 Mikuláš Madaras 1 Jarmila Makovníková 2 Institute of Physical and Applied Chemistry Faculty of Chemistry Brno University of Technology Czech Republic Soil Science and Conservation Research Institute 1 Research Station Prešov 2 Research Station Banská Bystrica Slovakia Humic Substances Seminar VII March 1 7 - 19, 200 4 Northeastern University Boston, MA, USA

2 CZ SK Europe and we

3 lignite mine Locations: source & scientists

4 Soil contamination remediation

5 First task selected humic acids + selected metal ions affinity

6 Soils 1.Calcaric Fluvisols on carbonated meadow sediments 2.Gleyic Fluvisols on non-carbonated meadow sediments 3.Calcaric Chernozems on loess 4.Haplic Luvisols on loess loams 5.Dystric Cambisols on flysch

7 Lignite WaterAshCombust.HCOS 481240226110.8 Composition of combustible matter (weight %) Average composition (weight %) CHOSN 655.2281.20.9

8 Humic acids source C H N OC alif C arom weight % fluvisol 158.15.465.331.043.134.4 fluvisol 258.34.995.531.246.932.8 chernozem59.93.075.032.133.742.2 luvisol58.04.134.932.941.837.2 cambisol56.25.246.132.448.629.0 lignite63.73.021.631.734.744.0

9 Adsorption isotherms cadmium chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

10 Adsorption isotherms copper chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

11 Relative adsorbed amount cadmium chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

12 copper Relative adsorbed amount chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

13 Desorption cadmium chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

14 Desorption – total chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite cadmium

15 Desorption copper chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

16 Desorption – total chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite copper

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

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

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