Publication Details

Reference Category Conference contributions
DOI / URL
Title (Primary) Impact of pre-defined redox conditions on the dynamics of nickel in a periodically flooded serpentine soil - implications for remedial and management strategies
Title (Secondary) ICOBTE 2011: 11th International Conference on the Biogeochemistry of Trace Elements, 3-8 July 2011, Florence, Italy
Author Antić-Mladenović, S.; Frohne, T.; Stärk, H.-J.; Wennrich, R.; Ličina, V.; Rinklebe, J.
Year 2011
Department ANA
Language englisch
Abstract

A periodically flooded serpentine soil was incubated using an automated biogeochemical microcosm system. Predefined redox-windows were created from reducing to oxidizing conditions and continuously monitored. The temporal dynamics of soluble Ni, iron (Fe), manganese (Mn), dissolved organic carbon (DOC), and sulfate (SO4 2-) were determined simultaneously. The results indicated that Ni can be mobilized to a considerable amount during low EH, while elevating soil redox status from reducing to oxidizing conditions led to decrease in soluble Ni concentrations. Nickel mobility was primarily affected by a formation of Ni-DOC complexes, whereas Ni immobilization came as a result of Fe/Mn oxide re-oxidation. The revealed Ni reactivity indicates that these shortterm variations in soluble Ni concentrations should be considered in relation to temporal risk assessment, management practice or remediation strategies in serpentine floodplains.

Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=11811
Antić-Mladenović, S., Frohne, T., Stärk, H.-J., Wennrich, R., Ličina, V., Rinklebe, J. (2011):
Impact of pre-defined redox conditions on the dynamics of nickel in a periodically flooded serpentine soil - implications for remedial and management strategies
ICOBTE 2011: 11th International Conference on the Biogeochemistry of Trace Elements, 3-8 July 2011, Florence, Italy