nuclear-news

Debris removal at Fukushima nuclear plant pushed back to 2037 or later

30 July 25, https://www.japantimes.co.jp/news/2025/07/30/japan/fukushima-nuclear-plant-debris-removal/

Full-scale removal of nuclear fuel debris from the No. 3 reactor of Tokyo Electric Power Company Holdings’ crippled Fukushima No. 1 nuclear power plant will not start before fiscal 2037, officials said Tuesday.

The removal was previously planned to begin in the early 2030s. This delay may push the completion of the plant’s decommissioning process beyond the target year of 2051 set by the government and Tepco.

The new timeline for the work was announced by Tepco and Nuclear Damage Compensation and Decommissioning Facilitation, or NDF, at separate news conferences. They determined that preparations for the work, such as the demolition of an adjacent building, will take about 12 years to 15 years.

“We aren’t in a situation where we should deny (the feasibility of) the decommissioning target,” said Akira Ono, head of Tepco’s in-house company in charge of the decommissioning work. “We remain committed to the goal of completing (the decommissioning process by 2051.)”

A total of 880 metric tons of debris, or a mixture of melted nuclear fuel and reactor structures, is believed to be in the No. 1 to No. 3 reactors at the nuclear plant, which suffered a triple meltdown following the March 2011 massive earthquake and tsunami.

Tepco began to extract debris from the No. 2 reactor on a trial basis last year, and has collected a total of about 0.9 gram so far.

According to Tepco and the facilitation organization, debris removal will be carried out using a combination of what is known as the nonsubmerged method, in which the debris is collected from the air, and what is called the filling and solidification method, which involves pouring a filling agent into the reactor and solidifying it.

A small hole will be opened in the upper part of the reactor building to insert a device that will crush the debris into fine pieces, while a filling agent will be injected as needed. The debris will be collected using a device inserted from the side of the building.

Tepco and the organization said demolishing a waste treatment building on the north side of the No. 3 reactor is necessary to ensure work safety and create space for new equipment. They also said that necessary facilities need to be built in the upper part of the reactor building, and such preparations are expected to take about 12 years to 15 years.

August 1, 2025 - Posted by Christina Macpherson | Fukushima continuing, wastes