Title: Release of vanadium from oxidized sediments: insights from different extraction and leaching procedures
Authors: Cappuyns, ValĂ©rie ×
Swennen, Rudy #
Issue Date: 2014
Publisher: Springer
Series Title: Environmental Science and Pollution Research vol:21 issue:3 pages:2272-2282
Abstract: Although the attention for vanadium (V) as a potentially harmful element is growing and some countries adopted threshold values for V in soils, sediments, ground- or surface water, V is generally of little importance in environmental legislation and the knowledge about the behavior of V in the environment is still limited. In the present study, the release of V from oxidized sediments, sediment-derived soils and from certified reference materials was investigated by means of several types of leaching tests and extractions that are frequently used for soil and sediment characterization. The pHstat leaching tests and single and sequential extractions applied in this study show that V generally displays a very limited actual and potential mobility in sediment. “Mobile” V concentrations, as estimated by the amount of V released by a single extraction with CaCl2 0.01 mol L−1, were low, even in the most contaminated sediment samples. Only under strongly acidifying conditions (pH 2), such as in the case ingestion of soil or sediment or accidental spills, a substantial release of V can be expected.
ISSN: 0944-1344
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Geology
Research Centre for Economics and Corporate Sustainability, Campus Brussels
Faculty of Economics and Business (FEB) - miscellaneous
× corresponding author
# (joint) last author

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