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Understanding the relation of as and mn biogeochemistry within fe-rich sediments in southeast Asian aquifers
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2016 (English)In: Arsenic Research and Global Sustainability - Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016, CRC Press/Balkema , 2016, p. 261-262Conference paper, Published paper (Refereed)
Abstract [en]

Aquifer sediments were collected from varying depths from selected villages in Murshidabad, India. Hydrological and physico-chemical parameters of groundwater were measured and aquifer cores were collected. Solid phase analysis includes X-Ray Diffraction (XRD), X-ray Absorption Spectroscopy (XAS) and x-ray imaging. Primary focus of this work was to understand the inter-relation of As and Mn biogeochemistry in presence of Fe-rich minerals. Mechanism of As and Mn release is controlled by the oxidation-reduction of Fe bearing minerals in these subsurface aquifers. With our spectroscopy data, we have observed reduced As and Mn species in aquifer sediment as the depth increased relating directly to elevated concentration of As and Mn observed in groundwater. These observations are vital in understanding the inter-depending behavior of As and Mn in subsurface sediments. © 2016 Taylor & Francis Group, London.

Place, publisher, year, edition, pages
CRC Press/Balkema , 2016. p. 261-262
Keywords [en]
Aquifers, Arsenic, Biogeochemistry, Groundwater, Groundwater resources, Hydrogeology, Sediments, Sustainable development, X ray absorption spectroscopy, X ray diffraction, Aquifer sediments, Elevated concentrations, Oxidation reduction, Physico - chemical parameters, Solid-phase analysis, Spectroscopy data, Subsurface aquifers, Subsurface sediments, Manganese
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-207572Scopus ID: 2-s2.0-85017007432ISBN: 9781138029415 (print)OAI: oai:DiVA.org:kth-207572DiVA, id: diva2:1102678
Conference
6th International Congress on Arsenic in the Environment, AS 2016, 19 June 2016 through 23 June 2016
Note

Conference code: 175559; Export Date: 22 May 2017; Conference Paper. QC 20170530

Available from: 2017-05-30 Created: 2017-05-30 Last updated: 2017-05-30Bibliographically approved

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Bhattacharya, P.

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Citation style
  • apa
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Output format
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