Effect of imposed electrical gradient on removal of toxic salt contaminants from alkali-saline low permeable soil during electrokinetic remediation

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dc.contributor.authorBessaim, Mohammed Mustapha
dc.contributor.authorKaraca, Oznur
dc.contributor.authorMissoum, Hanifi
dc.contributor.authorBendani, Karim
dc.contributor.authorLaredj, Nadia
dc.contributor.authorBekkouche, Mohamed Said
dc.date.accessioned2025-01-27T20:34:40Z
dc.date.available2025-01-27T20:34:40Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description2nd Conference of the Arabian-Journal-of-Geosciences (CAJG) -- NOV 25-28, 2019 -- Sousse, TUNISIA
dc.description.abstractSaline soils are one of the most hazardous environmental issues, retaining large and excessive amounts of noxious salt contaminants, thus damaging the ecosystem biodiversity, human health, as well as infrastructures and urban facilities. The low permeability and complex mineralogy of these soils make their remediation a very difficult task and an extreme challenge. While conventional techniques have been proven to be costly and mostly ineffective, electrokinetic remediation (EKR) can be an innovative, sustainable, and environmentally friendly alternative. This research investigates the effect of imposed electrical gradient (IEG) on the removal of harmful salts from highly alkaline saline soil during EKR. The samples obtained from Canakkale-Dardanos Campus area, northwest Turkey, exhibit severe alkalinity, extreme concentration of hazardous salts, high electrical conductivity, and salinity. Lab-scale electrokinetic runs were monitored for 5 days, with a set of three different IEG. The optimal results for salt contaminants removal were obtained during the highest IEG, reaching a remediation efficiency of 100% in the middle sections. Furthermore, harmful cationic salts, including sodium (Na+), potassium (K+), calcium (Ca2+), and magnesium (Mg2+), were transported toward the cathode, owing to the electro-migration and electro-osmosis flow which were significantly accelerated with the increment of the (IEG). The toxic chloride (Cl-) and sulfate (SO42-) salts were transported with the electro-migration phenomenon. The results indicated that the IEG has a major effect on remediation of high alkaline, low permeable saline soils, and can be considered the driving vector and the key transport mechanism for the removal of hazardous salt contaminants.
dc.description.sponsorshipArabian Journal Geosciences
dc.description.sponsorshipCanakkale Onsekiz Mart University Scientific Research Coordination Unit [FBA-2018/1385]
dc.description.sponsorshipThis study was supported by Canakkale Onsekiz Mart University Scientific Research Coordination Unit with project no. FBA-2018/1385.
dc.identifier.doi10.1007/s12517-020-05654-7
dc.identifier.issn1866-7511
dc.identifier.issn1866-7538
dc.identifier.issue14
dc.identifier.scopus2-s2.0-85088015452
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://doi.org/10.1007/s12517-020-05654-7
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23415
dc.identifier.volume13
dc.identifier.wosWOS:000553125100003
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Heidelberg
dc.relation.ispartofArabian Journal of Geosciences
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectAlkali-saline soil
dc.subjectElectrokinetic remediation
dc.subjectImposed electrical gradient
dc.subjectRemoval
dc.subjectNoxious salts
dc.titleEffect of imposed electrical gradient on removal of toxic salt contaminants from alkali-saline low permeable soil during electrokinetic remediation
dc.typeConference Object

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