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Optimizing Operational Conditions of Pilot-Scale Membrane Capacitive Deionization System

Author

Listed:
  • Bokjin Lee

    (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea)

  • Changseog Oh

    (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea
    Department of Civil and Environmental Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea)

  • Jusuk An

    (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea
    Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea)

  • Seungjae Yeon

    (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea)

  • Hyun Je Oh

    (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea
    Department of Civil and Environmental Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea)

Abstract

In this study, we developed a pilot-scale membrane capacitive deionization (MCDI) system for treating mildly brackish water and examined various operational parameters, including module arrangements, adsorption/desorption times, and flow rates. As we aimed to optimize these parameters to increase total dissolved solids (TDS) removal efficiency, the results revealed that the dual-series mode module arrangement and an adsorption time of 120 s with a flow rate of 10 L/min achieved the highest TDS removal efficiency of 99%. Energy consumption analysis showed that lower flow rates were associated with higher TDS removal efficiencies, highlighting the balance between energy consumption and water quality. This study provides insights into optimizing a pilot-scale MCDI for efficient water supply solutions, offering promise for sustainable and eco-friendly water treatment.

Suggested Citation

  • Bokjin Lee & Changseog Oh & Jusuk An & Seungjae Yeon & Hyun Je Oh, 2023. "Optimizing Operational Conditions of Pilot-Scale Membrane Capacitive Deionization System," Sustainability, MDPI, vol. 15(24), pages 1-11, December.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:24:p:16809-:d:1299522
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