Detail publikačního výsledku

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

PEKAŘ, M.

Originální název

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

Anglický název

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

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Natural 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.

Anglický abstrakt

Natural 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.

Klíčová slova

Defluoridation; Fluoride; Lignite; Sorption

Klíčová slova v angličtině

Defluoridation; Fluoride; Lignite; Sorption

Autoři

PEKAŘ, M.

Rok RIV

2010

Vydáno

01.01.2009

Nakladatel

Springer-Verlag

ISSN

0049-6979

Periodikum

WATER AIR AND SOIL POLLUTION

Svazek

197

Číslo

1-4

Stát

Nizozemsko

Strany od

303

Strany do

312

Strany počet

10

URL

http://link.springer.com/article/10.1007/s11270-008-9812-y/fulltext.html

Plný text v Digitální knihovně

http://hdl.handle.net/11012/19703

BibTex

@article{BUT48812,
  author="Miloslav {Pekař}",
  title="Fluoride Anion Binding by Natural Lignite (South Moravian Deposit of Vienna Basin)",
  journal="WATER AIR AND SOIL POLLUTION",
  year="2009",
  volume="197",
  number="1-4",
  pages="303--312",
  doi="10.1007/s11270-008-9812-y",
  issn="0049-6979",
  url="http://link.springer.com/article/10.1007/s11270-008-9812-y/fulltext.html"
}

Dokumenty

Fluoride Anion Binding by Natural Lignite