Membrane and Water Treatment

  • 제14권2호
  • /
  • Pages.55-63
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  • 2023
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  • 2005-8624(pISSN)
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  • 2092-7037(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Cation exchange membrane and anion exchange membrane aided electrolysis processes for hypochlorite generation

  • Seong K. Kim (Department of Chemical Engineering, Hannam University) ;
  • Dong-Min Shin (Department of Chemical Engineering, Hannam University) ;
  • Ji Won Rhim (Department of Chemical Engineering, Hannam University)
  • 투고 : 2021.07.03
  • 심사 : 2023.03.07
  • 발행 : 2023.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the influence of different IEMs (ion exchange membranes) to performance of the hypochlorite electrolysis unit with Cl2 recovery stream was investigated. More specifically, Nafion 117-a representative cation exchange membrane (CEM)-and aminated polypheylene oxide (APPO)-an anion exchange membrane (AEM)-were installed in the hypochlorite electrolysis unit, and the performance and the energy efficiency of the units were evaluated and compared. Regardless of whether CEM (Nafion 117) or AEM (APPO) was installed, the rate of hypochlorite generation was increased (by up to 24.3% and 22.2% for Nafion 117 and APPO, respectively) compared with the unit without an IEM. On the other hand, the power efficiency and the optimum operation condition of hypochlorite production units seem to depend on the conductivity and stability of the installed IEM. As the result, between Nafion 117 and APPO, higher performance and efficiency were achieved with Nafion 117, due to excellent conductivity and stability of the membrane.

키워드

과제정보

This work was supported by National Research Foundation (NRF) of Korea through grant funded by the Korea government (MSIT) (grant number: 2020R1G1 A1101287). S. K. K. also acknowledges the "Basic project (referring to projects performed with the budget directly contributed by the Government to achieve the purposes of establishment of Government-funded research institute)" established due to cooperation project with/supported by the KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY (KRICT).

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