Speciation and oxidation kinetics of arsenic in the thermal springs of Wiesbaden spa, Germany

Publication type:
Journal article
Metadata:
Autoren
  • SP Schwenzer
  • CE Tommaseo
  • M Kersten
  • T Kirnbauer
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000172742900006&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1007/s002160101038
Externe Identifier
  • Clarivate Analytics Document Solution ID: 502KN
  • PubMed Identifier: 11769802
ISSN
0937-0633
Ausgabe der Veröffentlichung
7
Zeitschrift
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
Paginierung
927 - 933
Datum der Veröffentlichung
2001
Status
Published
Titel
Speciation and oxidation kinetics of arsenic in the thermal springs of Wiesbaden spa, Germany
Sub types
  • Article
Ausgabe der Zeitschrift
371

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
DOI
10.1007/s002160101038
eISSN
1432-1130
ISSN
0937-0633
Ausgabe der Veröffentlichung
7
Zeitschrift
Fresenius' Journal of Analytical Chemistry
Paginierung
927 - 933
Datum der Veröffentlichung
2001
Status
Published
Herausgeber
Springer Science and Business Media LLC
Herausgeber URL
http://dx.doi.org/10.1007/s002160101038
Datum der Datenerfassung
2019
Titel
Speciation and oxidation kinetics of arsenic in the thermal springs of Wiesbaden spa, Germany
Ausgabe der Zeitschrift
371

Data source: Crossref

Abstract
Since 1886 arsenic has been known to be present as a trace component in the Wiesbaden thermal waters at concentrations of over 100 microg L(-1). In this study for the first time molecular level speciation of arsenic was measured both in the water (by HG-AAS) and in wellstone scale deposits (by XANES). Most of the arsenic in the anoxic NaCl-type waters is in the reduced arsenite form. Hydrous ferric oxide (HFO) precipitates in the scale deposits scavenge only the minor dissolved arsenate portion which is, however, accumulated up to 3% w/w. Isothermal precipitation experiments at in-situ temperatures showed a difference between the progress of both arsenic and iron oxidation and precipitation. This can be explained in terms of adsorption of the aqueous arsenite and heterogeneous oxidation on the HFO surface, but subsequently rapid release of the arsenate thereby formed back into the aqueous phase at enhanced temperature and increased pH. Such relatively rapid pseudo-homogeneous arsenite oxidation is too slow to efficiently retard the As(III) load already on the wellhead, but fast enough to prevent arsenic seepage into ground water aquifers.
Addresses
  • Institut für Geowissenschaften, Johannes Gutenberg-Universität, Mainz, Germany.
Autoren
  • SP Schwenzer
  • CE Tommaseo
  • M Kersten
  • T Kirnbauer
DOI
10.1007/s002160101038
eISSN
1432-1130
Externe Identifier
  • PubMed Identifier: 11769802
Open access
false
ISSN
0937-0633
Ausgabe der Veröffentlichung
7
Zeitschrift
Fresenius' journal of analytical chemistry
Schlüsselwörter
  • Arsenites
  • Arsenic
  • Ferric Compounds
  • Water Pollutants, Chemical
  • Microscopy, Electron, Scanning
  • Spectrum Analysis
  • Water Supply
  • Oxidation-Reduction
  • Kinetics
  • Solubility
  • X-Rays
  • Germany
  • Chemical Precipitation
Sprache
eng
Medium
Print
Paginierung
927 - 933
Datum der Veröffentlichung
2001
Status
Published
Datum der Datenerfassung
2002
Titel
Speciation and oxidation kinetics of arsenic in the thermal springs of Wiesbaden spa, Germany.
Sub types
  • Research Support, Non-U.S. Gov't
  • Journal Article
Ausgabe der Zeitschrift
371

Data source: Europe PubMed Central

Abstract
Since 1886 arsenic has been known to be present as a trace component in the Wiesbaden thermal waters at concentrations of over 100 microg L(-1). In this study for the first time molecular level speciation of arsenic was measured both in the water (by HG-AAS) and in wellstone scale deposits (by XANES). Most of the arsenic in the anoxic NaCl-type waters is in the reduced arsenite form. Hydrous ferric oxide (HFO) precipitates in the scale deposits scavenge only the minor dissolved arsenate portion which is, however, accumulated up to 3% w/w. Isothermal precipitation experiments at in-situ temperatures showed a difference between the progress of both arsenic and iron oxidation and precipitation. This can be explained in terms of adsorption of the aqueous arsenite and heterogeneous oxidation on the HFO surface, but subsequently rapid release of the arsenate thereby formed back into the aqueous phase at enhanced temperature and increased pH. Such relatively rapid pseudo-homogeneous arsenite oxidation is too slow to efficiently retard the As(III) load already on the wellhead, but fast enough to prevent arsenic seepage into ground water aquifers.
Autoren
  • SP Schwenzer
  • CE Tommaseo
  • M Kersten
  • T Kirnbauer
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/11769802
DOI
10.1007/s002160101038
ISSN
0937-0633
Ausgabe der Veröffentlichung
7
Zeitschrift
Fresenius J Anal Chem
Schlüsselwörter
  • Arsenic
  • Arsenites
  • Chemical Precipitation
  • Ferric Compounds
  • Germany
  • Kinetics
  • Microscopy, Electron, Scanning
  • Oxidation-Reduction
  • Solubility
  • Spectrum Analysis
  • Water Pollutants, Chemical
  • Water Supply
  • X-Rays
Sprache
eng
Country
Germany
Paginierung
927 - 933
Datum der Veröffentlichung
2001
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2002
Titel
Speciation and oxidation kinetics of arsenic in the thermal springs of Wiesbaden spa, Germany.
Sub types
  • Journal Article
  • Research Support, Non-U.S. Gov't
Ausgabe der Zeitschrift
371

Data source: PubMed

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