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 transcript:

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 , Northeastern University Boston, MA, USA

CZ SK Europe and we

lignite mine Locations: source & scientists

Soil contamination remediation

First task selected humic acids + selected metal ions affinity

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

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

Humic acids source C H N OC alif C arom weight % fluvisol fluvisol chernozem luvisol cambisol lignite

Adsorption isotherms cadmium chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

Adsorption isotherms copper chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

Relative adsorbed amount cadmium chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

copper Relative adsorbed amount chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

Desorption cadmium chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

Desorption – total chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite cadmium

Desorption copper chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite

Desorption – total chernozem fluvisol 1 luvisol fluvisol 2 cambisollignite copper

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

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