Field Experiments and Reactive Transport Modeling of Subsurface Arsenic Removal in Bangladesh

Doctoral thesis (2017)

Authors

M.M. Rahman Water Resources - CEG
Research Group
Water Resources (CEG) (TU Delft)
Copyright: © 2017 M.M. Rahman
DOI
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https://doi.org/10.4233/uuid:5b950e57-3704-43b2-ab03-f0da1dd79cc9
Groundwater Arsenic Bangladesh Reactive transport modeling Subsurface arsenic removal
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Published Date

2017

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Water Management

Research Group

Water Resources

Abstract

The principle of Subsurface Arsenic (As) Removal (SAR) is to extract anoxic groundwater, aerate it and reinject it. Oxygen in the injected water reacts with iron in the resident groundwater to form hydrous ferric oxide (HFO). Dissolved As sorbs onto the HFO, which allows for the extraction of groundwater with lower As concentrations.