화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.5, 3356-3360, September, 2014
DOI10.1016/j.jiec.2013.12.020  Export Citation
Modeling the capacitive deionization batch mode operation for desalination
Y.A.C. Jande1, 2, and W.S. Kim1, 3, †
  • 1Department of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 426-791, Republic of Korea
  • 2Department of Materials Science and Engineering, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania, Korea
  • 3, Korea
E-mail:
Capacitive deionization (CDI) is an emerging desalination technology in which saline water flows through a pair of polarized/biased electrodes. The cations and anions are attracted towards the negative and positive electrodes, respectively. In CDI operation there are two possible modes: single pass and batch mode. In single pass operation, saline water passes only once through the CDI cell, whereas in batch mode operation, the fixed volume of saline water is recycled continuously until a steady state is reached. This paper presents the transient response of the CDI cell under batch mode operation. The model is developed by taking into account single pass CDI operation and the mixing phenomena that occur in the recycling tank. The developed model was successfully validated using experimental data, and the model helped to derive the equation for predicting the steady state of the CDI cell for the given operating parameters: flow rate, saline water quantity, CDI capacitance, CDI resistance, spacer volume, dead volume, applied potential, and initial concentration of the saline water.
Keywords:Capacitive deionization;Batch mode operation;Steady state
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