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<strong>Adsorption of enrofloxacin onto natural zeolite: Kinetics, thermodynamics, isotherms and error analysis</strong>

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Title Statement <strong>Adsorption of enrofloxacin onto natural zeolite: Kinetics, thermodynamics, isotherms and error analysis</strong>
 
Added Entry - Uncontrolled Name Ćurković, Lidija ; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, Croatia
Ašperger, Danijela ; Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, 10 000 Zagreb, Croatia Tel: +385 1 4597 212; Fax: +385 1 4597 250;
Babić, Sandra ; Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, 10 000 Zagreb, Croatia
Župan, Josip ; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, Croatia
 
Uncontrolled Index Term Enrofloxacin; Natural zeolite; Isotherms; Kinetics; Thermodynamic; Error analysis
 
Summary, etc. Classical wastewater treatment processes are not efficient for removal of so-called emerging contaminants. Croatian natural zeolite - clinoptilolite has been used as alternative material for efficient removal of enrofloxacin (ENRO) from aqueous solution. The influences of the initial ENRO concentration, contact time and temperature on adsorption performance are experimentally verified by a batch method. The kinetic data are analyzed using pseudo-first-order and pseudo-second-order kinetic models. The equilibrium data are fitted to two parameters adsorption isotherm models: Freundlich, Langmuir and Dubinin-Radushkevich. Linear and non-linear methods are used for comparing the best fitting of the isotherms. By comparing values of correlation coefficient and the error functions, it is found that Langmuire and Freundlich models best fit the enrofloxacin adsorption onto clinoptilolite. Values of thermodynamic parameters were calculated using adsorption equilibrium constant obtained from the Langmuir isotherm. The results suggest that the ENRO adsorption on natural zeolite a non-spontaneous and endothermic process. This study shows that natural zeolite can be an important low-cost adsorbent for ENRO removal.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2019-02-07 14:27:05
 
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http://op.niscair.res.in/index.php/IJCT/article/view/13065
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 25, ##issue.no## 6 (2018): Indian Jouranl of Chemical Technolgy
 
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