Removal of Toxic Metal Ions Using Modified Lignocellulosic Fibers as Eco-Friendly Biosorbents: Mathematical Modeling and Numerical Simulation
摘要：
Lignocellulosic fibers were subjected to an acid and alkaline pre-treatment and used as adsorbent of copper, cadmium, lead and nickel metal ions from aqueous phase. Adsorption process was carried out in batch conditions and the effects of alkaline treatment were investigated. Homogeneous diffusion of a particle model was used to predict the adsorption kinetics mechanism. Fourier transform infrared (FTIR) spectrometry analyses were applied to identify the groups that participated in adsorption process and suggest its mechanisms. The Langmuir isotherm provided the best fit for the experimental data. A mathematical model was used to simulate the breakthrough curves of metal ions in multi-element adsorption column taking into account the influences of external mass transfer and intraparticle diffusion resistance.
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年份：
2015
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