Investigation of the effect of surfactant on the electrokinetic treatment of PFOA contaminated soil

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorGanbat, Namuunen_US
dc.contributor.authorAltaee, Alien_US
dc.contributor.authorZhou, John L.en_US
dc.contributor.authorLockwood, Thomasen_US
dc.contributor.authorAl-Juboori, Raed A.en_US
dc.contributor.authorHamdi, Faris M.en_US
dc.contributor.authorKarbassiyazdi, Elikaen_US
dc.contributor.authorSamal, Akshaya K.en_US
dc.contributor.authorHawari, Alaaen_US
dc.contributor.authorKhabbaz, Hadien_US
dc.contributor.departmentDepartment of Built Environmenten
dc.contributor.groupauthorWater and Environmental Eng.en
dc.contributor.organizationUniversity of Technology Sydneyen_US
dc.contributor.organizationJain Universityen_US
dc.contributor.organizationQatar Universityen_US
dc.date.accessioned2022-11-23T08:00:47Z
dc.date.available2022-11-23T08:00:47Z
dc.date.issued2022-11en_US
dc.descriptionFunding Information: We thank the University of Technology Sydney (UTS) for a PhD Scholarship to support this research project. Publisher Copyright: © 2022 The Author(s)
dc.description.abstractPerfluorooctanoic acid (PFOA) is a persistent, nonbiodegradable environmental pollutant progressively becoming more problematic. Due to its ubiquitous use, PFOA is one of the PFAS chemicals frequently detected in the environment. This study assessed electrokinetic (EK) technology as an in-situ remediation procedure to remove PFOA from kaolinite as a model soil. In this study, a 100 mg/kg of PFOA/kaolinite mixture was used, and the effectiveness of the unenhanced EK was compared with the surfactant-enhanced EK experiments with SDS, NaC, and Tween80. 5% (w/w) surfactants were added to the cathode in the EK experiments of one and two weeks long. The study evaluated the impacts of processing time and electric current on the EK performance. Electroosmosis and electromigration mechanisms affected PFOA transport in soil, causing PFOA to accumulate in the middle of the soil. However, the minimal accumulation of PFOA in the cathode region suggests that electromigration was the main transport mechanism. In a one-week EK experiment, the PFOA removal efficiency in the unenhanced EK process was 14.49% at 10 mA and 19.00% at 20 mA, while in surfactant enhanced EK, it was 17.67% at 10 mA and reached 32.66% at 20 mA. The PFOA removal in surfactant enhanced EK reached 75.58% in the two weeks EK experiments carried out at 20 mA. The NaC-EK experiment exhibited the highest PFOA removal, followed by the SDS-EK experiment and TW80-EK experiment. The outcomes show the feasibility of removing PFAS from contaminated soil using the surfactant-enhanced EK technique.en
dc.description.versionPeer revieweden
dc.format.extent14
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationGanbat, N, Altaee, A, Zhou, J L, Lockwood, T, Al-Juboori, R A, Hamdi, F M, Karbassiyazdi, E, Samal, A K, Hawari, A & Khabbaz, H 2022, ' Investigation of the effect of surfactant on the electrokinetic treatment of PFOA contaminated soil ', Environmental Technology and Innovation, vol. 28, 102938 . https://doi.org/10.1016/j.eti.2022.102938en
dc.identifier.doi10.1016/j.eti.2022.102938en_US
dc.identifier.issn2352-1864
dc.identifier.otherPURE UUID: 6832a72f-9c0c-4017-9631-b9d7a3046f5een_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/6832a72f-9c0c-4017-9631-b9d7a3046f5een_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85141333415&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/92754724/1_s2.0_S2352186422003613_main.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/117823
dc.identifier.urnURN:NBN:fi:aalto-202211236583
dc.language.isoenen
dc.publisherElsevier
dc.relation.ispartofseriesEnvironmental Technology and Innovationen
dc.relation.ispartofseriesVolume 28en
dc.rightsopenAccessen
dc.subject.keywordElectrokineticen_US
dc.subject.keywordPFOAen_US
dc.subject.keywordRemediationen_US
dc.subject.keywordSoil decontaminationen_US
dc.subject.keywordSurfactant enhancementen_US
dc.titleInvestigation of the effect of surfactant on the electrokinetic treatment of PFOA contaminated soilen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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