Fluoride Anion Binding by Natural Lignite (South Moravian Deposit of Vienna Basin)

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dc.contributor.authorPekaƙ, Miloslavcs
dc.coverage.issue1-4cs
dc.coverage.volume197cs
dc.date.issued2009-01-01cs
dc.description.abstractNatural lignite from South Moravia was tested for the sorption of fluoride anion in concentration range from 0.05 to 0.8 mmol/l. The lignite removes majority of fluorides and only about 13% of sorption is reversible upon leaching in pure water. Sorption data can be fitted by both Freundlich and Langmuir equations and both isotherms indicate presence of two principal sorption sites or steps. The sorption is fast, at least 90% of final sorbed amount is removed during the first ten minutes but kinetic data show a complex pattern with temporary increase of fluoride concentration. This is attributed to complexity of lignite-water interactions, lignite soaking and swelling in aqueous media. Foreign ions and pH showed only slight influence on the sorbed amount. Natural lignite can be considered as a potential low-cost defluoridation agent that is effective at various solution chemistries and also at low, but still over-limit, fluoride concentrations.en
dc.description.abstractPƙírodnĂ­ lignit jako sorbent fluoridĆŻ. VĂœsledky studia sorpce fluoridovĂœch iontĆŻ na jihomravskĂ©m lignitu. PotvrzenĂ­ schopnosti lignitu sniĆŸovat koncentrace fluoridĆŻ v ĆĄirokĂ©m koncentračnĂ­m rozmezĂ­ pod limitnĂ­ obsah pro pitnĂ© vody.cs
dc.formattextcs
dc.format.extent303-312cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationWater, Air, and Soil Pollution (Print version). 2009, vol. 197, issue 1-4, p. 303-312.en
dc.identifier.doi10.1007/s11270-008-9812-ycs
dc.identifier.issn0049-6979cs
dc.identifier.orcid0000-0002-3878-0917cs
dc.identifier.other48812cs
dc.identifier.urihttp://hdl.handle.net/11012/19703
dc.language.isoencs
dc.publisherSpringer-Verlagcs
dc.relation.ispartofWater, Air, and Soil Pollution (Print version)cs
dc.relation.urihttp://link.springer.com/article/10.1007/s11270-008-9812-y/fulltext.htmlcs
dc.rights(C) Springer-Verlagcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0049-6979/cs
dc.subjectDefluoridationen
dc.subjectFluorideen
dc.subjectLigniteen
dc.subjectSorptionen
dc.subjectdefluoridace
dc.subjectfluoridy
dc.subjectlignit
dc.subjectsorpce
dc.titleFluoride Anion Binding by Natural Lignite (South Moravian Deposit of Vienna Basin)en
dc.title.alternativeSorpce fluoridu na pƙírodním lignitucs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-48812en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:52en
sync.item.modts2025.01.17 18:46:43en
thesis.grantorVysokĂ© učenĂ­ technickĂ© v Brně. Fakulta chemickĂĄ. Ústav fyzikĂĄlnĂ­ a spotƙebnĂ­ chemiecs
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