Adsorption of arsenic (V) by iron (III)-modified natural zeolitic tuff

Adsorption of arsenic (V) by iron (III)-modified natural zeolitic tuff

Adsorption of arsenic (V) by natural zeolitic tuff, modified with iron (III), was investigated. Also, the iron (III) adsorption characteristics by natural zeolitic tuff was evaluated. It was determined that iron (III) adsorption by starting zeolitic tuff was best represented by the Freundlich type o...

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Veröffentlicht in:Environmental chemistry letters 2009-06, Vol.7 (2), p.161-166
Hauptverfasser: Stanić, Tanja, Daković, Aleksandra, Živanović, Aleksandar, Tomašević-Čanović, Magdalena, Dondur, Vera, Milićević, Sonja
Format: Artikel
Sprache:eng
Schlagworte:
Adsorption
Analytical Chemistry
Arsenic
Correlation coefficient
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Geochemistry
Iron
Isotherms
Original Paper
Pollution
Studies
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Zusammenfassung:Adsorption of arsenic (V) by natural zeolitic tuff, modified with iron (III), was investigated. Also, the iron (III) adsorption characteristics by natural zeolitic tuff was evaluated. It was determined that iron (III) adsorption by starting zeolitic tuff was best represented by the Freundlich type of isotherm, having correlation coefficient ( r 2 ) of 0.990. Arsenic (V) adsorption by iron (III)-modified zeolitic tuff followed a nonlinear type of isotherm. The best fit of the experimental data was obtained using the Langmuir–Freundlich model ( r 2  = 0.99), with the estimated maximum of arsenic (V) adsorption to iron (III)-modified zeolitic tuff of 1.55 mg/g.
ISSN:1610-3653
1610-3661
DOI:10.1007/s10311-008-0152-3