Correlation of Operating Capacity of Strong Acid Cation Exchange Resin
Abstract
The purpose of this study was to generate performance data for Strong Acid Cation (SAC) exchange resins and develop models to predict the regenerant volumes and capacity under different operating conditions. To meet this objective, experiments were conducted using Dowex Monosphere 650 (H) resins to measure the capacity in both service and regeneration cycles. Experimental data obtained were correlated to develop mathematical models to predict capacity as a function of volume of hardwater treated, amount of hardness and bed volume. Models to predict regenerant volumes at different bed depths were also developed. The capacity models could be used for prediction with an average uncertainty of 5% and the model to predict the regenerant volume can be used with an average uncertainty of 7%.
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