2021 Volume 70 Issue 12 Pages 487-490
In order to complete the decommissioning of the Fukushima Daiichi Nuclear Power Plants, it is essential to maintain the structure for a long period of 30 years or more, and in particular, it is important to evaluate the deterioration due to corrosion and take countermeasures.
In this paper, after taking a bird’s-eye view of the whole decommissioning process, the issues of corrosion events in reactor pressure vessels, primary containment vessels, storage vessels of the secondary wastes of contaminated water and fuel debris, and vessels used during the treatment/disposal of radioactive wastes will be explained. In addition, the corresponding concepts of how to deal with these events, will be discussed, taking into account the opinions of various experts.
