Comparison of Ultrasound and Conventional Technique for Removal of Methyl Orange by Luffa Cylindrica Fibers

Abstract

The aim of this study is to investigate the effect of ultrasound propagation on the adsorption of methyl orange by Luffa cylindrica. Kinetics of adsorption was studied at 30 and 50 degrees C. Adsorption isotherms were investigated at three different medium temperatures (30, 40 and 50 degrees C) for ultrasound and shaking water baths. The obtained adsorption isotherms were modeled by Freundlich, Temkin, Dubinin-Radushkevich and Chakraborty and Sun isotherm models. Diffusion coefficients of the methyl orange were found as 8.65 x 10(-15) and 1.43 x 10(-14) m(2)/s for shaking and 6.38 x 10(-14) and 9.94 x 10(-13)m(2)/s for ultrasound water bath at medium temperatures of 30 and 50 degrees C, respectively.