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Adsorptive removal of aqueous fluoride and ferrocyanide by liner minerals from SPL landfill leachate: Effect of pH and adsorptive competition

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dc.contributor.authorKang, Dong Hee-
dc.contributor.authorHyun, Seunghun-
dc.contributor.authorKim, Jeong-Gyu-
dc.contributor.authorKim, Su-Jung-
dc.date.accessioned2021-09-07T15:22:11Z-
dc.date.available2021-09-07T15:22:11Z-
dc.date.created2021-06-14-
dc.date.issued2011-02-01-
dc.identifier.issn0011-9164-
dc.identifier.urihttps://scholar.korea.ac.kr/handle/2021.sw.korea/113094-
dc.description.abstractSoil and water near a spent potliner (SPL) landfill are often found to be highly contaminated with fluoride and ferrocyanide. The liner system, composed of kaolinite and montmorillonite, provides the primary attenuation mechanism for the risk of soluble ferrocyanide and fluoride in the leachate from a SPL landfill. The adsorption of ferrocyanide and fluoride by montmorillonite and kaolinite was investigated in both a single and a binary solute system as a function of the aqueous pH. The adsorption of both solutes was highly pH-dependent, and competed with each of the two liner minerals. In the single solute-montmorillonite system, the adsorption was higher under acidic pH conditions and lower under alkaline pH conditions. For the single solute-kaolinite system, the maximum adsorption appeared near pK(a) value of the edge functional group. In the binary solute system, the adsorption of solute appeared to be suppressed by the presence of a counterpart, and the competitive adsorption becomes less significant with increasing pH where both adsorptions were minimal. As a result, increasing aqueous pH and the presence of a competitor in SPL-induced leachate can mitigate the attenuation capacity provided by the liner system, thereby, enhancing the leachability of ferrocyanide and fluoride from SPL landfill sites. (C) 2010 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.language.isoen-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectIRON-CYANIDE COMPLEX-
dc.subjectSORPTION-
dc.subjectSOIL-
dc.subjectRETENTION-
dc.subjectARSENATE-
dc.subjectARSENITE-
dc.subjectOXIDES-
dc.subjectMODEL-
dc.subjectCLAY-
dc.titleAdsorptive removal of aqueous fluoride and ferrocyanide by liner minerals from SPL landfill leachate: Effect of pH and adsorptive competition-
dc.typeArticle-
dc.contributor.affiliatedAuthorHyun, Seunghun-
dc.contributor.affiliatedAuthorKim, Jeong-Gyu-
dc.identifier.doi10.1016/j.desal.2010.09.009-
dc.identifier.scopusid2-s2.0-78650240110-
dc.identifier.wosid000286851700012-
dc.identifier.bibliographicCitationDESALINATION, v.267, no.1, pp.82 - 87-
dc.relation.isPartOfDESALINATION-
dc.citation.titleDESALINATION-
dc.citation.volume267-
dc.citation.number1-
dc.citation.startPage82-
dc.citation.endPage87-
dc.type.rimsART-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaEngineering-
dc.relation.journalResearchAreaWater Resources-
dc.relation.journalWebOfScienceCategoryEngineering, Chemical-
dc.relation.journalWebOfScienceCategoryWater Resources-
dc.subject.keywordPlusIRON-CYANIDE COMPLEX-
dc.subject.keywordPlusSORPTION-
dc.subject.keywordPlusSOIL-
dc.subject.keywordPlusRETENTION-
dc.subject.keywordPlusARSENATE-
dc.subject.keywordPlusARSENITE-
dc.subject.keywordPlusOXIDES-
dc.subject.keywordPlusMODEL-
dc.subject.keywordPlusCLAY-
dc.subject.keywordAuthorSpend potliner-
dc.subject.keywordAuthorLandfill leachate-
dc.subject.keywordAuthorClay liner-
dc.subject.keywordAuthorFluoride-
dc.subject.keywordAuthorFerrocyanide-
dc.subject.keywordAuthorAdsorption-
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