Mathematical Modeling of Fixed-Bed Adsorption Systems for Water Treatment

摘要

Results are presented of efforts to develop a model capable of predicting the effluent concentrations of adsorbates in complex mixtures and the impact of process variables on process performance so that the least costly operation can be identified. The successes and limitations of the homogeneous surface diffusion model are presented. The model was successful in predicting adsorption, desorption and displacement of single- and two-solute fixed-bed data and in predicting the effluent concentration of known solutes in complex mixtures of unknown composition when significant competitive interactions did not occur. The model was less successful in predicting effluent concentrations of nonspecific measures of organic concentration such as total organic carbon.