Modelado en columna de lecho fijo para la bioadsorción de Cd²⁺ Y Pb²⁺ con cáscara de cacao

In this work the results of the biosorption of Pb⁺² and Cd⁺² with cocoa shell in fixed bed columns are presented. A hydrodynamic study was performed varying diameter and height of the column, as well as diameter and mass of biosorbent, to determine the best hydrodynamic conditions, which resulted in a flow through the column of 2.12 mL/min. Experimental data were adjusted to several models depending on the effluent volume, which describe the rupture curve for single component and two component systems. The removal percentages of Pb⁺² and Cd⁺² in single component systems are 91 and 90 %, respctively. In bicomponent systems (Pb⁺²-Cd⁺²) the removal percentages of lead and cadmium were 88 and 90 %, respectively. The dose-response model in bi and mono-component systems best reproduced the experimental rupture curves throughout the measured range.