D. Supriyadi, Darmansyah, A.C. Farhani, A. Sanjaya, F. Soraya
The aim of this study to evaluate fifteen kinetic models by fitting the adsorption of chromium experimental data from aqueous solution on modified adsorbent from activated sludge and natural zeolite. All the fifteen kinetic models parameter were determined and ranked by sum of square errors (SSE). The results showed that intra-particle diffusion, power, Bangham, fractal exponential, fractal mixed 1.2 order, first order, fractal-like pseudo first order, fractal-like second order have a good fit to experimental data as their values of SSE 0.00057, 0.000617, 0.000617, 0.000621, 0.000624, 0.000639, 0.000639 and 0.000653 respectively. However the larger value of SSE was obtained for the pseudo first order, the pseudo second order, Avrami, exponential, Boyd, and mixed 1,2 model as their values of 0.002085, 0.001204, 0.002085, 0.00155, 0.004273, 0.00121 © Published under licence by IOP Publishing Ltd.
Department of Chemical Engineering, Institut Teknologi Sumatera (ITERA), South Lampung, Indonesia; Department of Chemical Engineering, University of Lampung, Bandar Lampung, Indonesia; Departemnt of Biosystem Engineering, Institut Teknologi Sumatera (ITERA), South Lampung, Indonesia
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