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Open AccessArticle

Simulation of Ion Exchange Resin with Finite Difference Methods

College of Chemistry & Molecular Sciences, Wuhan University, Wuhan 430072, China
Author to whom correspondence should be addressed.
Processes 2019, 7(10), 675;
Received: 23 August 2019 / Revised: 9 September 2019 / Accepted: 16 September 2019 / Published: 1 October 2019
(This article belongs to the Section Materials Processes)
Ion exchange resin is used to remove potentially corrosive impurities from coolant in the first circuit of a nuclear power plant. After one operational cycle, the used and unused resin in the mixed bed is discarded as solid waste. The aim of this work is to create a mathematical model to predict the operational cycle time of the mixed bed resin for reducing unused resin discharge. A partial differential equation (PDE) was set up with the conservation of matter. A finite difference method was used to solve the PDE. Matlab was the programming and calculating tool used in this work. The data from solution were obtained at different time and space nodes. The model was then verified experimentally using different ions on exchange columns. Concentrations of K+, Mn2+, and Cl- were calculated to verify the validation of the model by comparing it with experimental data. The calculated values showed good consistency with the experimental value. View Full-Text
Keywords: ion exchange; finite difference method; simulation; Matlab ion exchange; finite difference method; simulation; Matlab
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MDPI and ACS Style

Zhu, Y.; Liu, B.; Peng, R.; Luo, Y.; Yu, P. Simulation of Ion Exchange Resin with Finite Difference Methods. Processes 2019, 7, 675.

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