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Sorpce fluoridu na přírodním lignitu

dc.contributor.authorPekař, Miloslavcs
dc.date.accessioned2016-08-02T14:20:06Z
dc.date.available2016-08-02T14:20:06Z
dc.date.issued2009-01-01cs
dc.identifier.citationWater, Air, and Soil Pollution (Print version). 2009, vol. 197, issue 1-4, p. 303-312.en
dc.identifier.issn0049-6979cs
dc.identifier.other48812cs
dc.identifier.urihttp://hdl.handle.net/11012/19703
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.abstractPřírodní lignit jako sorbent fluoridů. Výsledky studia sorpce fluoridových iontů na jihomravském lignitu. Potvrzení schopnosti lignitu snižovat koncentrace fluoridů v širokém koncentračním rozmezí pod limitní obsah pro pitné vody.cs
dc.formattextcs
dc.format.extent303-312cs
dc.format.mimetypeapplication/pdfcs
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.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 přírodním lignitucs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav fyzikální a spotřební chemiecs
sync.item.dbidVAV-48812en
sync.item.dbtypeVAVen
sync.item.insts2019.06.17 10:21:45en
sync.item.modts2019.05.18 00:35:02en
eprints.grantNumberinfo:eu-repo/grantAgreement/GA0/GA/GA105/05/0404cs
dc.coverage.issue1-4cs
dc.coverage.volume197cs
dc.identifier.doi10.1007/s11270-008-9812-ycs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0049-6979/cs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen


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