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Effect of monovalent and divalent ion solutions as washing agents on the removal of Sr and Cs from soil near a nuclear power plant
DC Field | Value | Language |
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dc.contributor.author | Song, Hojae | - |
dc.contributor.author | Chung, Hyeonyong | - |
dc.contributor.author | Nam, Kyoungphile | - |
dc.date.accessioned | 2023-09-12T07:56:36Z | - |
dc.date.available | 2023-09-12T07:56:36Z | - |
dc.date.created | 2021-06-07 | - |
dc.date.created | 2021-06-07 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.citation | Journal of Hazardous Materials, Vol.412, p. 125165 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | https://hdl.handle.net/10371/195498 | - |
dc.description.abstract | Solutions of monovalent and divalent ions, including calcium, magnesium, ammonium, and potassium, were tested in the removal of Sr and Cs from soil near a nuclear power plant. The Ca2+ and K+ solutions exhibited removal efficiencies of 68.2% and 81.3% for Sr and Cs, respectively. This high performance was probably due to the physicochemical similarities between ?Ca and Sr? and ?K and Cs?. Alternatively, the Mg2+ and NH4+ solutions performed much worse, despite having the same valences as Ca2+ and K+, respectively. Ca2+ and K+ solutions could also simultaneously remove cationic toxic metals present with the nuclides, albeit much less efficiently (30?40%). For anionic metalloid As and anionic toxic metal Cr, the efficiency was even lower (< 20%). The fivestep sequential extraction experiment confirmed that all chemical forms of Sr and Cs, except the residual form, were extensively removed by the Ca2+ and K+ solutions, respectively. For comparison, widely used washing agents exhibited removal efficiencies of 25?30%. Notably, Fe2+ and Mn2+ ions were hardly detected in the Ca2+ solution, while their concentrations were much higher in the common washing agents, suggesting the involvement of an ion-exchange mechanism in Sr and Cs removal, rather than a Fe/Mn oxide dissolution mechanism. | - |
dc.language | 영어 | - |
dc.publisher | Elsevier BV | - |
dc.title | Effect of monovalent and divalent ion solutions as washing agents on the removal of Sr and Cs from soil near a nuclear power plant | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jhazmat.2021.125165 | - |
dc.citation.journaltitle | Journal of Hazardous Materials | - |
dc.identifier.wosid | 000649730300008 | - |
dc.identifier.scopusid | 2-s2.0-85100302221 | - |
dc.citation.startpage | 125165 | - |
dc.citation.volume | 412 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Nam, Kyoungphile | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | SEQUENTIAL EXTRACTION | - |
dc.subject.keywordPlus | HEAVY-METALS | - |
dc.subject.keywordPlus | CONTAMINATED SOIL | - |
dc.subject.keywordPlus | TRACE-ELEMENTS | - |
dc.subject.keywordPlus | REMEDIATION | - |
dc.subject.keywordPlus | STRONTIUM | - |
dc.subject.keywordPlus | CESIUM | - |
dc.subject.keywordPlus | FRACTIONATION | - |
dc.subject.keywordPlus | SPECIATION | - |
dc.subject.keywordPlus | CADMIUM | - |
dc.subject.keywordAuthor | Soil washing | - |
dc.subject.keywordAuthor | Physicochemical similarity | - |
dc.subject.keywordAuthor | Calcium solution | - |
dc.subject.keywordAuthor | Potassium solution | - |
dc.subject.keywordAuthor | Five-step sequential extraction | - |
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