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Geochemical processes for mobilization of arsenic in groundwater
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.ORCID iD: 0000-0003-4350-9950
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. 23-24Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents an overview of natural geochemical processes that can mobilize arsenic (As) from aquifer sediments into groundwater. The primary source of As in groundwater is pre-dominantly natural (geogenic), and can be mobilized via complicated biogeochemical interactions within various aquifer solids and water. Oxidation of sulfide minerals such as arsenopyrite, As-substituted pyrite and other sulfide minerals are susceptible to oxidation in near surface environment, and release significant quantities of As from sediments. Reductive dissolution of As-bearing Fe(III) oxides/hydroxides 2and sulfide oxidation are the most common and significant geochemical triggers that tend to release As from aquifer sediments into groundwater. Hence, strengthening direct action and implementation of the best practices to target the safe groundwater sources for installing safe drinking water wells are an urgent necessity for sustainable As mitigation on a global scale. © 2016 Taylor & Francis Group, London.

Place, publisher, year, edition, pages
CRC Press/Balkema , 2016. p. 23-24
Keywords [en]
Aquifers, Arsenic, Geochemistry, Groundwater, Groundwater resources, Oxidation, Potable water, Sediments, Sulfur compounds, Sustainable development, Water wells, Aquifer sediments, Arsenic in groundwater, Biogeochemical interactions, Geochemical process, Groundwater sources, Oxidation of sulfides, Reductive dissolution, Safe drinking water, Hydrochemistry
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-207564Scopus ID: 2-s2.0-85017005623ISBN: 9781138029415 (print)OAI: oai:DiVA.org:kth-207564DiVA, id: diva2:1102720
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, Prosun

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Citation style
  • apa
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Language
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