Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Zooplankton Removal in Seawater using UV, Electrolysis and UV+electrolysis Process

UV, 전기분해 및 UV+전기분해 공정을 이용한 해수 중의 동물성 플랑크톤 제거

  • Kim, Dong-Seog (Department of Environmental Science, Catholic University of Daegu,) ;
  • Park, Young-Seek (Division of Liberal Studies, Daegu University)
  • 김동석 (대구가톨릭대학교 환경과학과) ;
  • 박영식 (대구대학교 자유전공학부)
  • Received : 2021.05.05
  • Accepted : 2021.06.17
  • Published : 2021.07.31
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Abstract

The International Maritime Organization (IMO) ballast water management agreement (International Convention for the Control and Management of Ship's Ballast Water and Sediments) came into force on September 8, 2017. This study evaluated the disinfection performance of electrolysis, UV treatment, and electrolysis + UV combined, to improve the treatment of zooplankton (size ≥ 50 ㎛), which is expected to strengthen the standards for biodegradation efficiency. Among the methods used, the disinfection time leading to 100% death was in the order: electrolysis > electrolysis + UV > UV process. For the same level of disinfection performance, the amount of electricity required for the electrolysis, UV, and electrolysis + UV processes were 1,300 W.s, 8,400 W.S, and 4,500 W.s, respectively. The combination of electrolysis + UV process for inactivation of zooplankton in ballast water did not show a synergic effect owing to the slow disinfection time and high power consumption.

Keywords

References

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