Mechanism of groundwater arsenic removal by goethite-coated mineral sand

Skye sand (Vic, Australia) has been considered for arsenic removal from groundwater. Analysis showed that the silica sand is coated with poorly crystalline goethite, hematite and clay minerals. Mössbauer spectra taken following arsenic adsorption revealed changes in the recoilless fraction and relax...

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Bibliographic Details
Published inHyperfine interactions Vol. 238; no. 1; pp. 1 - 9
Main Authors Cashion, J. D., Khan, S. A., Patti, A. F., Adeloju, S., Gates, W. P.
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.11.2017
Springer Nature B.V
Subjects
3-8 September 2017
Arsenic
Arsenic removal
Atomic
Clay minerals
Condensed Matter Physics
Groundwater
Hadrons
Heavy Ions
Hematite
Molecular
Nuclear Physics
Optical and Plasma Physics
Physics
Physics and Astronomy
Proceedings of the International Conference on the Applications of the Mössbauer Effect (ICAME 2017)
Russia
Saint-Petersburg
Sand
Silicon dioxide
Surfaces and Interfaces
Thin Films
Arsenic adsorption
Skye sand
Groundwater
Mössbauer effect
Goethite
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Summary:Skye sand (Vic, Australia) has been considered for arsenic removal from groundwater. Analysis showed that the silica sand is coated with poorly crystalline goethite, hematite and clay minerals. Mössbauer spectra taken following arsenic adsorption revealed changes in the recoilless fraction and relaxation behaviour of the goethite compared to the original state, showing that the goethite is the main active species.
ISSN:0304-3843
1572-9540
DOI:10.1007/s10751-017-1472-0