WaterTAP Technical Brief: Ion Exchange Model Demonstration and Optimization
Published on by Water Network Research, Official research team of The Water Network in Academic
Executive Summary Ion exchange is an important water treatment process for removing targeted contaminants, including those associated with hardness. In this report, we introduce the ion exchange model developed for the Water treatment Technoeconomic Assessment Platform (WaterTAP) and demonstrate an analysis of Ca2+ removal for 0.1 million gallons per day (MGD) and 10 MGD systems.
The model is a single-component, steady-state implementation that enables process optimization based on the influent ion concentration, resin capacity, and resin selectivity. Based on a survey of costing references for ion exchange, the WaterTAP ion exchange model returns reasonable estimates for the levelized cost of water of an ion exchange process, and performs as expected when critical design parameters, such as the resin capacity and selectivity, are varied.
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