%0 Journal Article %T Optimization of Removal Efficiency and Minimum Contact Time for Cadmium and Zinc Removal onto Iron-modified Zeolite in a Two-stage Batch Sorption Reactor %A Nui£¿ %A I. %A Trgo %A M. %A Ugrina %A M. %A Vukojevi£¿ Medvidovi£¿ %A N. %J - %D 2017 %R 10.15255/CABEQ.2017.1119 %X Sa£¿etak In highly congested industrial sites where significant volumes of effluents have to be treated in the minimum contact time, the application of a multi-stage batch reactor is suggested. To achieve better balance between capacity utilization and cost efficiency in design optimization, a two-stage batch reactor is usually the optimal solution. Thus, in this paper, a two-stage batch sorption design approach was applied to the experimental data of cadmium and zinc uptake onto iron-modified zeolite. The optimization approach involves the application of the Vermeulen¡¯s approximation model and mass balance equation to kinetic data. A design analysis method was developed to optimize the removal efficiency and minimum total contact time by combining the time required in the two-stages, in order to achieve the maximum percentage of cadmium and zinc removal using a fixed mass of zeolite. The benefits and limitations of the two-stage design approach have been investigated and discussed. This work is licensed under a Creative Commons Attribution 4.0 International License %K two-stage batch design %K iron-modified zeolite %K zinc %K cadmium %K optimization %U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=283613