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Vortragsreihe Ökologie und Umweltforschung WS 2019/20

Donnerstag 12:00-13:30 H6, Geo


Dr. Kerstin Hockmann
Environmental Geochemistry, BayCEER, University of Bayreuth (Homepage)
Donnerstag, 12.12.2019 12:00-13:30 :

Iron, sulfur and a pinch of antimony - new perspectives on secondary mineral pathways and metalloid mobility

Antimony is a highly toxic environmental contaminant that plays an important and growing role in our daily lives. It is used as a flame-retardant in electronics and plastics as well as in liquid metal batteries for renewable energy sources. The vast and growing usage has led to a legacy of antimony contamination in many areas worldwide.
The mobility of antimony in the environment is strongly affected by sorption and co-precipitation interactions with iron(III) oxide minerals. The interaction between reduced iron and sulfur species with iron(III) oxides induces a series of reductive dissolution and mineralogical transformation reactions, which may have profound consequences for the mobility of associated antimony like in wetland soils. Moreover, antimony itself may influence or steer iron mineralization pathways.
This presentation will demonstrate the importance of iron(III) oxide transformations in the environment, their impact on the geochemistry and mobility of antimony and the significance of antimony on iron(III) transformations.



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DatumVortragenderTitel

17.10.2019
Dr. Robert Koller
IBG-2 (Plant Sciences), Forschungszentrum Jülich
The dark side of plants: Monitoring spatio-temporal dynamics of roots by non-invasive technologies [Abstract]

24.10.2019
Dr. Björn Maronga
Institute of Meteorology and Climatology, Leibniz University Hannover
Inside the fog: towards an improved forecasting of nocturnal fog by using turbulence-resolving simulations [Abstract]
Freitag

10:00-11:00
08.11.2019

Dr. Christoph Schmidt
Geomorphologie, Universität Bayreuth

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Climatology, BayCEER, University of Bayreuth
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21.11.2019
Dr. Gabriel Rau
Engineering Geology, Karlsruhe Institute of Technology
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28.11.2019
Dr. Joachim Götz
Department of Geomorphology, BayCEER, University of Bayreuth
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05.12.2019
PD Dr. Nils M. Franke
Wissenschaftliches Büro Leipzig
Natürlich gegen Rechts? Von wegen! [Abstract]

12.12.2019
Dr. Kerstin Hockmann
Environmental Geochemistry, BayCEER, University of Bayreuth
Iron, sulfur and a pinch of antimony - new perspectives on secondary mineral pathways and metalloid mobility [Abstract]

16.01.2020
Domingo Alcaraz-Segura
Department of Botany, University of Granada
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23.01.2020
Prof. Dr. Manuel Steinbauer
Sport Ecology, BayCEER / University of Bayreuth
Understanding biodiversity dynamics – from human dominated systems to the fossil record [Abstract]

30.01.2020

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