Impact of Rainfall Patterns on a Near-Surface Radioactive Waste Disposal Facility: Climate Change and Long-Term Perspectives

• 발행기관: 한국방사성폐기물학회
• 저자명: Jin Beak Park Kunwar Mrityunjai Sharma
• 간행물 정보: 『Journal of Nuclear Fuel Cycle and Waste Technology (JNFCWT)』Vol.23 No.2, 239~264쪽, 전체 26쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2025.06.30

국문 초록

With an emphasis on climate change and long-term perspectives, this study discusses the impact of rainfall patterns on the safety and integrity of near-surface radioactive waste disposal facilities in South Korea. Future rainfall and infiltration scenarios are prepared by using historical rainfall data from the Ulsan district, and the impact of rainfall patterns is modeled with COMSOL Multiphysics and GoldSim. Infiltration patterns do not significantly affect the total annual dose. However, they do have a minor impact on the total annual dose from 129I and 90Sr, contributing a smaller dose during the 1,000-year simulation period. Radionuclides such as 3 H, 99Tc, and 14C are the primary contributors to the total annual dose, which results from the radionuclide concentrations in the saturated rock zone, regardless of the assumed cases of inputs such as waste zone permeability and saturated zone groundwater flow rate. This study provides essential insights and recommendations for the safe management and design of multi-layered cover system in radioactive waste disposal facilities, considering the evolution of long-term climatic conditions.

목차

1. Introduction

2. Rainfall Scenarios

3. Near-Surface Radioactive Waste Disposal System

4. Water Flow and Radionuclide Transport Modeling

5. Results and Discussion

6. Conclusions

Conflict of Interest

Acknowledgements

REFERENCES

키워드

Climate change Precipitation Near-surface disposal Multi-layered cover Water flow Radionuclide transport