nuclear-news

Still no end in sight for Fukushima nuke plant decommissioning work

January 27, 2024 (Mainichi Japan), https://mainichi.jp/english/articles/20240127/p2a/00m/0na/003000c

OKUMA, Fukushima — Nearly 13 years since the triple-meltdown following the March 2011 Great East Japan Earthquake and tsunami, it is still unclear when decommissioning of the Fukushima Daiichi Nuclear Power Station’s reactors will be completed.

Operator Tokyo Electric Power Company (TEPCO) Holdings Inc. showed the power plant to Mainichi Shimbun reporters on Jan. 26 ahead of the 13th anniversary of the nuclear accident. Radiation levels in many areas are almost normal, and people can move in ordinary work clothes. However, the most difficult part of the work, retrieving melted nuclear fuel, has been a challenge. The management of solid waste, which is increasing daily, also remains an issue. The decommissioning of the reactors, which is estimated to take up to 40 years, is still far from complete.

Meltdowns occurred in reactor Nos. 1, 2 and 3. The start of nuclear fuel debris removal at reactor No. 2, which had been scheduled to begin by the end of fiscal 2023, has just been postponed for the third time. Reactor buildings are still inaccessible due to high radiation, meaning the work has to be done remotely.

More than 1,000 tanks for storing treated wastewater are lined up next to reactor Nos. 1 through 4, and new facilities to stably store and process approximately 520,000 cubic meters of existing solid waste are being built by reactor Nos. 5 and 6.

Treated wastewater began being discharged into the ocean in 2023, and the tanks are gradually being removed, but there is no timetable for the disposal of the solid waste. A TEPCO representative said, “The final issue that remains is how to deal with the radioactive waste that continues to be produced even as the decommissioning of the plant progresses.”

Japanese original by Yui Takahashi, Lifestyle, Science & Environment News Department)

January 30, 2024 - Posted by Christina Macpherson | decommission reactor, Fukushima continuing