Antimony retention and release from drained and waterlogged shooting range soil under field conditions
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Autor:innen
Hockmann, Kerstin
Tandy, Susan
Reiser, Rene
Conesa, Hector
Keller, Martin
Studer, Björn
Schulin, Rainer
Autor:in (Körperschaft)
Publikationsdatum
09/2015
Typ der Arbeit
Studiengang
Sammlung
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Chemosphere
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
134
Ausgabe / Nummer
Seiten / Dauer
536–543
Patentnummer
Verlag / Herausgebende Institution
Elsevier
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Many soils polluted by antimony (Sb) are subject to fluctuating waterlogging conditions; yet, little is known about how these affect the mobility of this toxic element under field conditions. Here, we compared Sb leaching from a calcareous shooting range soil under drained and waterlogged conditions using four large outdoor lysimeters. After monitoring the leachate samples taken at bi-weekly intervals for >1.5 years under drained conditions, two of the lysimeters were subjected to waterlogging with a water table fluctuating according to natural rainfall water infiltration. Antimony leachate concentrations under drained conditions showed a strong seasonal fluctuation between 110 μg L−1 in summer and <40 μg L−1 in winter, which closely correlated with fluctuations in dissolved organic carbon (DOC) concentrations. With the development of anaerobic conditions upon waterlogging, Sb in leachate decreased to 2–5 μg L−1 Sb and remained stable at this level. Antimony speciation measurements in soil solution indicated that this decrease in Sb(V) concentrations was attributable to the reduction of Sb(V) to Sb(III) and the stronger sorption affinity of the latter to iron (Fe) (hydr)oxide phases. Our results demonstrate the importance of considering seasonal and waterlogging effects in the assessment of the risks from Sb-contaminated sites.
Schlagwörter
Sb speciation, Redox potential, Microbial reduction, Sb leaching, Transport, Eh
Fachgebiet (DDC)
610 - Medizin und Gesundheit
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
0045-6535
1879-1298
1879-1298
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Lizenz
Zitation
HOCKMANN, Kerstin, Susan TANDY, Markus LENZ, Rene REISER, Hector CONESA, Martin KELLER, Björn STUDER und Rainer SCHULIN, 2015. Antimony retention and release from drained and waterlogged shooting range soil under field conditions. Chemosphere. September 2015. Bd. 134, S. 536–543. DOI 10.1016/j.chemosphere.2014.12.020. Verfügbar unter: http://hdl.handle.net/11654/6239