Geochemical processes for mobilization of arsenic in groundwater

I. Herath, J. Bundschuh, M. Vithanage, P. Bhattacharya

Publikation: Bidrag til bog/rapport/konferenceproceedingsKonferenceartikel i proceedingspeer review

5 Citationer (Scopus)

Resumé

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.

OriginalsprogEngelsk
TitelArsenic Research and Global Sustainability - Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016
RedaktørerProsun Bhattacharya, Gunnar Jacks, Jochen Bundschuh, Marie Vahter, Jerker Jarsjo, Jurate Kumpiene, Arslan Ahmad, Charlotte Sparrenbom, Marinus Eric Donselaar, Jochen Bundschuh, Ravi Naidu
ForlagCRC Press/Balkema
Sider23-24
Antal sider2
ISBN (Trykt)9781138029415
DOI
StatusUdgivet - 2016
Udgivet eksterntJa
Begivenhed6th International Congress on Arsenic in the Environment, AS 2016 - Stockholm, Sverige
Varighed: 19 jun. 201623 jun. 2016

Konference

Konference6th International Congress on Arsenic in the Environment, AS 2016
Land/OmrådeSverige
ByStockholm
Periode19/06/1623/06/16

Programområde

  • Programområde 2: Vandressourcer

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