In-situ immobilization of arsenic in the subsurface using ferrous chloride

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dc.contributor.authorRoemer, Micha Erhard
dc.contributor.examiningcommitteeYuan, Qiuyan (Civil Engineering) Zvomuya, Francis (Soil Science) Wallis, Ilka (Flinders University)en_US
dc.contributor.supervisorHolländer, Hartmut (Civil Engineering)en_US
dc.date.accessioned2017-09-19T16:53:16Z
dc.date.available2017-09-19T16:53:16Z
dc.date.issued2017
dc.degree.disciplineCivil Engineeringen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractAt a military site in Northern Germany, the aquifer is contaminated by high quantities of arsenic (As) from chemical warfare agents (CWA) and their degradation products. Arsenic concentrations up to 9 mg L-1 were found (Krüger et al. 2008). In regards to this high degree of contamination, an in-situ arsenic remediation strategy using bivalent ferrous chloride (FeCl2) was evaluated. The field trial spanned almost two years, and a total of 2.3 kg of As was immobilized through the pilot plant. The objective of the present study was to design a reactive transport model for the arsenic immobilization field trial, which would provide a quantitative framework to evaluate As fate in the aquifer system and indicate the effectiveness of the remediation technology. The completed model couples physical and geochemical processes governing the fate of As at the site and is transferable to similar case studies that involve arsenic contamination.en_US
dc.description.noteFebruary 2018en_US
dc.identifier.urihttp://hdl.handle.net/1993/32620
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectArsenicen_US
dc.subjectContaminationen_US
dc.subjectGroundwateren_US
dc.subjectModelingen_US
dc.subjectImmobilizationen_US
dc.subjectMilitary siteen_US
dc.subjectPhreeqcen_US
dc.subjectFeflowen_US
dc.titleIn-situ immobilization of arsenic in the subsurface using ferrous chlorideen_US
dc.typemaster thesisen_US
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