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Vol 26 No Supplementary Issue

Copyright (c) 2014 Oral Lacin1, Ensar Oguz2

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Effect of Experimental Conditions on the Sorption Efficiencies and Capacities in Removal of Fe3+ from Aqueous Solutions by Magmatic Rock Material

https://doi.org/10.14233/ajchem.2014.19054
Oral Lacin1
1Department of Chemical Engineering, Atatürk University, 25240 Erzurum, Turkey 2Department of Environmental Engineering, Atatürk University, 25240 Erzurum, Turkey *Corresponding author: Tel: +90 442 2314601; E-mail: eoguz@atauni.edu.tr
Ensar Oguz2
1Department of Chemical Engineering, Atatürk University, 25240 Erzurum, Turkey 2Department of Environmental Engineering, Atatürk University, 25240 Erzurum, Turkey *Corresponding author: Tel: +90 442 2314601; E-mail: eoguz@atauni.edu.tr

Corresponding Author(s) : Oral Lacin1

Asian Journal of Chemistry, Vol 26 No Supplementary Issue

Abstract

In this manuscript, Fe3+ uptake by the particles of ignimbrite from aqueous solutions was investigated using batch sorption techniques. The sorption equilibrium studies were realised as a function of contact time, initial Fe3+ concentration, sorbent dosage, pH, temperature and agitation rate. The removal efficiency of Fe3+ and sorption capacity of the ignimbrite particles at pH 3, 293 K, 6 rps and initial Fe3+ concentration of 100 mg L-1 were 86 % and 7.1 (mg g-1), respectively. To evaluate the sorption equilibrium, four isotherm models were fitted to experimental data. The best model was determined by taking into account the correlation coefficient (R2). The best adjustment from isotherm models was observed to be the D-R (R2 0.999). The activation energy (Ea) was determined as 4.5 kJ mol-1. Thermodynamic parameters such as DH°, DS° and DG° were calculated from the slope and intercept of the linear plot of ln KD versus 1/T.

Keywords

Sorbent Fe3+ Ignimbrite Sorbent capacities Isotherms.
Lacin1, O., & Oguz2, E. (2014). Effect of Experimental Conditions on the Sorption Efficiencies and Capacities in Removal of Fe3+ from Aqueous Solutions by Magmatic Rock Material. Asian Journal of Chemistry, 26(27), 237–242. https://doi.org/10.14233/ajchem.2014.19054
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