Influence of groundwater composition on subsurface iron and arsenic removal

Handle URI:
http://hdl.handle.net/10754/561408
Title:
Influence of groundwater composition on subsurface iron and arsenic removal
Authors:
Moed, David H.; Van Halem, Doris; Verberk, J. Q J C; Amy, Gary L.; Van Dijk, Johannis C.
Abstract:
Subsurface arsenic and iron removal (SAR/SIR) is a novel technology to remove arsenic, iron and other groundwater components by using the subsoil. This research project investigated the influence of the groundwater composition on subsurface treatment. In anoxic sand column experiments, with synthetic groundwater and virgin sand, it was found that several dissolved substances in groundwater compete for adsorption sites with arsenic and iron. The presence of 0.01 mmol L -1phosphate, 0.2 mmol L -1 silicate, and 1 mmol L -1 nitrate greatly reduced the efficiency of SAR, illustrating the vulnerability of this technology in diverse geochemical settings. SIR was not as sensitive to other inorganic groundwater compounds, though iron retardation was limited by 1.2 mmol L -1 calcium and 0.06 mmol L -1 manganese. © IWA Publishing 2012.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Publisher:
IWA Publishing
Journal:
Water Science & Technology
Issue Date:
Jun-2012
DOI:
10.2166/wst.2012.151
PubMed ID:
22678215
Type:
Article
ISSN:
02731223
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMoed, David H.en
dc.contributor.authorVan Halem, Dorisen
dc.contributor.authorVerberk, J. Q J Cen
dc.contributor.authorAmy, Gary L.en
dc.contributor.authorVan Dijk, Johannis C.en
dc.date.accessioned2015-08-03T09:56:23Zen
dc.date.available2015-08-03T09:56:23Zen
dc.date.issued2012-06en
dc.identifier.issn02731223en
dc.identifier.pmid22678215en
dc.identifier.doi10.2166/wst.2012.151en
dc.identifier.urihttp://hdl.handle.net/10754/561408en
dc.description.abstractSubsurface arsenic and iron removal (SAR/SIR) is a novel technology to remove arsenic, iron and other groundwater components by using the subsoil. This research project investigated the influence of the groundwater composition on subsurface treatment. In anoxic sand column experiments, with synthetic groundwater and virgin sand, it was found that several dissolved substances in groundwater compete for adsorption sites with arsenic and iron. The presence of 0.01 mmol L -1phosphate, 0.2 mmol L -1 silicate, and 1 mmol L -1 nitrate greatly reduced the efficiency of SAR, illustrating the vulnerability of this technology in diverse geochemical settings. SIR was not as sensitive to other inorganic groundwater compounds, though iron retardation was limited by 1.2 mmol L -1 calcium and 0.06 mmol L -1 manganese. © IWA Publishing 2012.en
dc.publisherIWA Publishingen
dc.subjectCompetitive adsorptionen
dc.subjectDrinking water treatmenten
dc.subjectGroundwateren
dc.subjectSubsurface arsenic removalen
dc.subjectSubsurface iron removalen
dc.titleInfluence of groundwater composition on subsurface iron and arsenic removalen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalWater Science & Technologyen
dc.contributor.institutionDelft University of Technology, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628 CN Delft, Netherlandsen
dc.contributor.institutionUNESCO-IHE, Westvest 7, 2611 AX Delft, Netherlandsen
kaust.authorAmy, Gary L.en

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