Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
권호 표지
DOI QR코드

DOI QR Code

Development of monitoring system to prevent inflow of marine life into the nuclear power plant

해양생물의 원전 취수구 유입 방지를 위한 모니터링 시스템 개발

  • Tae-Jong KANG (Department of Fisheries Sciences, Chonnam National University) ;
  • Eun-Bi MIN (Department of Fisheries Sciences, Chonnam National University) ;
  • Joong-Ro SHIN (Department of Fisheries Sciences, Chonnam National University) ;
  • Doo-Jin HWANG (Department of Marine Production Management, Chonnam National University)
  • 강태종 (전남대학교 수산과학과) ;
  • 민은비 (전남대학교 수산과학과) ;
  • 신중로 (전남대학교 수산과학과) ;
  • 황두진 (전남대학교 해양생산관리학과)
  • Received : 2024.05.13
  • Accepted : 2024.08.30
  • Published : 2024.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

Climate change has led to a significant increase in jellyfish populations globally, causing various problems. For power plants that use nearby seawater for cooling, the intrusion of jellyfish into intake systems can block the flow, leading to reduced output or even shutdowns. This issue is compounded by other small marine organisms like shrimp and salps, making it urgent to develop solutions to prevent their intrusion. This study addressed the problem using the BioSonics DT-X 120 kHz scientific fish finder to conduct preliminary tank experiments. We also deployed underwater acoustic and camera buoys around the intake of nuclear power plant, utilizing a bidirectional communication system between sea and land to collect data. Data collection took place from July 31, 2023 to August 1, 2023. While harmful organisms such as jellyfish and salps were not detected, we successfully gathered acoustic data on small fish measuring backscattering strength (SV). Analysis showed that fish schools were more prominent in the evening than during the day. The highest fish distribution was observed at 3:30 AM on July 31 with an SV of -44.8 dB while the lowest was at 12:30 PM on the same day with an SV of -63.4 dB. Additionally, a solar-powered system was used to enable real-time data acquisition from sea buoys with smooth communication between the land server and the offshore buoy located 1.8 km away. This research developed an acoustic-based monitoring system for detecting harmful organisms around the intake and provided foundational data for preventing marine organism intrusion and planning effective measures.

Keywords

References

  1. Kim DY, Lee JS and Kim DH. 2014. A study on direction of industrial utilization for jellyfish in Korea. The Korea Society for Fisheries and Marine Sciences Education 26, 587-596. https://doi.org/10.13000/JFMSE.2014.26.3.587. 
  2. Kang TJ, Min EB, Heo G, Shin HO and Hwang DJ. 2022. The development of buoy type fish finder using LTE communication. Journal of the Korean Society of Fisheries and Ocean Technology 58, 141-152. https://doi.org/10.3796/KSFOT.2022.58.2.141. 
  3. Kang YS. 2008. Characteristics of phytoplankton communities in the coastal waters of power plant. The Korean Society of Phycology 23, 31-52. https://doi.org/10.4490/ALGAE.2008.23.1.031. 
  4. Lee JB, Lee MH and Kang DW. 1998. Phytoplankton community dynamics and primary productivity around Samyang thermal power plant in the northern Cheju, Korea. Bulletin of the Marine Science Institute 22, 133-148. 
  5. Min EB, Kang TJ, Son YT, and Hwang DJ. 2024. Seasonal distribution of marine organisms in the surface layer around nuclear power plants using acoustic. Journal of the Korean Society of Fisheries and Ocean Technology 60, 9-17. 
  6. National Institute of Fisheries Science. 2022. NIFS Serial Oceanographic Observation, Korea Oceanographic Data Center. Retrieved from https://www.nifs.go.kr/main.do on Jan 25, 2024. 
  7. National Institute of Fisheries Science. 2023. NIFS jellyfish information system. Retrieved from https://www.nifs.go.kr/main.do on Jan 18. 
  8. National Archives of Korea. 2024. NAK nuclear power plant power generation. Retrieved from https://theme.archives.go.kr/next/photo/nuclearEnergy02List.do on July 3. 
  9. Operational Performance Information System for Nuclear Power Plant. 2023. Status of accidents and failures in nuclear power plants. Nuclear event evaluation database. Retrieved from https://opis.kins.re.kr/main/OpisMain.doon June 1. 
  10. Park JY, Kang TJ, Min EB and Hwang DJ. 2023. Acoustic study on the distribution of marine life in the sea around the water intake of nuclear power plants. Journal of the Fishing Technology Institute 16, 49-53.  https://doi.org/10.15399/jfti.2023.02.16.1.49
  11. Seo IS, Moon HT and Choi BM. 2009. Community structure of macrobenthic assemblages around the Wolseong nuclear power plant, East Sea of Korea. The Korean Journal of Environment Biology 27, 341-352. 
  12. Wang Z, Tang Y, Fu Y, Meng W, Wang S and Liu X. 2020. Monitoring of biomass at cooling water system of Hongyanhe nuclear power plant by using acoustic methods. E3S Web of Conferences 194, 01007. https://doi.org/10.1051/e3sconf/202019401007. 
  13. Zhihong T, Feng C, Xiaoxiang J, Li S, Ruoyu B and Yang L. 2017. An automatic marine-organism monitoring system for the intake water of the nuclear power plant. Annals of Nuclear Energy 109, 208-211. https://doi.org/10.1016/j.anucene.2017.05.040.