Identification and Qualitative Analysis of Liquid Effluents in the Spatial Planning Stage of a New Nuclear Power Plant Project

Authors

  • Pia Fackovič Volčanjk GEN energija d.o.o.
  • Klemen Debelak GEN energija d.o.o.
  • Kaja Zupančič GEN energija d.o.o.
  • Tomaž Žagar GEN energija d.o.o.

DOI:

https://doi.org/10.18690/jet.18.3.177-186.2025

Keywords:

JEK2, Nuclear power plant, liquid effluents, radioactive discharges, non-radioactive discharges, ALARA principle, effluent management, regulatory compliance

Abstract

Planned JEK2 will generate liquid effluents during normal operation, categorized as radioactive and non-radioactive. Radioactive releases will mainly consist of tritium, while other radionuclides will be present only in trace amounts, all below the authorized limits. Non-radioactive effluents, originating from cooling and service water systems, will be treated by filtration, pH adjustment, and biocide neutralization. Thermal load of non-radioactive emissions to the Sava will be minimal to negligible levels, as the cooling tower serves as the heat sink. All effluents from JEK2 will be managed by design through defence in depth: multi-barrier treatment and holdup, controlled storage and release, and comprehensive monitoring under the ALARA principle to keep impacts low and within strict regulatory limits

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Author Biographies

  • Pia Fackovič Volčanjk, GEN energija d.o.o.

    Krško, Slovenia. E-mail: pia.fackovic@gen-energija.si

  • Klemen Debelak, GEN energija d.o.o.

    Krško, Slovenia. E-mail:  klemen.debelak@gen-energija.si 

  • Kaja Zupančič, GEN energija d.o.o.

    Krško, Slovenia. E-mail:  kaja.zupancic@genenergija.si 

  • Tomaž Žagar, GEN energija d.o.o.

    Krško, Slovenia. E-mail:  tomaz.zagar@gen-energija.si 

References

[1] EUR. (2016). European Utility Requirements for LWR Nuclear Power Plants (Vol. 2). Brussels: EUR Organisation.

[2] GEN Energija. (2025). Tekočinski izpusti iz JEK2. Krško: GEN.

[3] Huang, H., Liu, Q., Chen, L., Chen, C., & Chen, M. (2021). A statistical evaluation of the liquid effluent release from NPP based on analytical methods with low detection limits. Journal of Radioanalytical and Nuclear Chemistry, 330, 1235–1242.

[4] IAEA. (2005). Environmental and Source Monitoring for Purposes of Radiation Protection (Safety Guide RS-G-1.8). Vienna: International Atomic Energy Agency.

[5] IAEA. (2018). Regulatory Control of Radioactive Discharges to the Environment (Safety Guide GSG-9). Vienna: International Atomic Energy Agency.

[6] IBE. (2025). Pobuda za DPN za JEK2: Predlog pobude. Ljubljana: IBE.

[7] OECD/NEA. (2016). Effluent Release Options from Nuclear Installations: Technical and Regulatory Aspects (NEA No. 3690). Paris: Nuclear Energy Agency, OECD.

[8] U.S. Nuclear Regulatory Commission. (2021). Radioactive Effluents from Nuclear Power Plants – Annual Summary Report. Washington, DC: NRC.

[9] Šavli, S., Križman, M., Nemec, T., Cindro, M., Stritar, A., Vokal Nemec, B., & Janžekovič, H. (2007). Tritium Liquid Effluents from the Krško NPP. In: Proceedings of the International Conference Nuclear Energy for New Europe (NENE 2007). Portorož, Slovenia: Nuclear Society of Slovenia.

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Published

17.12.2025

How to Cite

Fackovič, P., Debelak, K., Zupančič, K., & Žagar, T. (2025). Identification and Qualitative Analysis of Liquid Effluents in the Spatial Planning Stage of a New Nuclear Power Plant Project. Journal of Energy Technology, 18(3), 177–186. https://doi.org/10.18690/jet.18.3.177-186.2025