Modeling and Prediction of Sorption of Aqueous Contaminants

M. E. FERNANDEZ; P.R. BONELLI; A. L. CUKIERMAN; N.O. LEMCOFF

SAN FRANCISCO

Congreso; 2013 American Institute of Chemical Engineers (AIChE) Annual Meeting; 2013

American Institute of Chemical Engineers (AIChE)

The biosorption of basic dyes, methylene blue and rhodamine B, from binary aqueous solutions onto cypress cone chips, was studied through mathematical modeling. Modified Langmuir multicomponent isotherms coupled with a linear driving force model were used to predict the dynamic binary sorption of the dyes. Recent experimental data for single component on the untreated and alkaline-treated biosorbent was used to determine the model parameters, and the breakthrough predictions are in good agreement with the experimental results. Useful information on the effects of bed length and feed concentration on the breakthrough time and mass transfer length was obtained. This can guide the design and optimization of the biosorbent column.