Modelado de un Proceso Electroquímico y de su Consumo Energético para la Remoción de Arsénico en Aguas, Utilizando el Método de Superficie de Respuesta

Abstract

An electrocoagulation process (EC) for removing arsenic in a sample of synthetic water with high arsenic content was studied using two Fe electrodes. The objective was modeling, evaluation of the fitting and adjustment of the control
conditions of process variations for As removal and energy consumption with a predictive purpose. A Response Surface Methodology (RSM) Box Behnken design with four factors was used. This experimental design was validated before the
assays, being suitable for the intended purpose. A quadratic model for both, the removal of As and energy consumed, was obtained from the analysis of the significance of the factor effects considered for the model. Both had a good degree of adjustment and high correlation coefficient and signal/noise ratio. The externally studentized residuals normally distributed with a constant error and no outliers, allow proper exploration of the experimental space with the developed models.