Removal of tebuconazole from wastewater by zeolite X: kinetics and thermodynamics studies
Publication Date
2014-08Author
Kowenje, Victor O
Shikuku, Chrispin
Ongeri, MK
Zanella, Renato
Prestes, DO
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Show full item recordAbstract/ Overview
Tebuconazole, a widely used fungicide is toxic to the environment and has been
reported as a water contaminant. In this study, the adsorption of aqueous solution
tebuconazole onto faujasite X (NaX) was investigated in batch mode. Equilibrium sorption
data at 303 K were analyzed using Langmuir, Freundlich, and Temkin isotherm models. The
adsorption data was found to be described by the models in the order Langmuir>
Freundlich> Temkin model. For the 293–323 K temperature range studied, the percent
removal of the pesticide decreased with increase in temperature. The sorption process was
found to follow the pseudo-second-order kinetic model while Intraparticle diffusion model
indicated that the adsorption process was multi-mechanistic and pore diffusion was not the
sole rate-controlling step. The calculated thermodynamic parameters∆ G,∆ H and∆ S for …
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- Department of Chemistry [323]