” Japan’s nuclear regulator and experts are questioning the safety of plans to build frozen walls to deal with the buildup of radioactive wastewater at the disabled Fukushima Daiichi nuclear power plant.
The government and plant operator Tokyo Electric Power Company plan to create walls of frozen soil to prevent groundwater from flowing beneath the reactor buildings. 400 tons of groundwater is flowing beneath the facilities from nearby mountains every day.
The government and TEPCO want to start construction in June. But they need permission from the Nuclear Regulation Authority, or NRA.
The NRA invited experts to a meeting last Friday to assess the planned ice walls.
NRA Commissioner Toyoshi Fuketa expressed concern about the risk of the ground sinking.
Experts raised questions about the effects of a power blackout on the frozen walls.
They said all the risks need to be addressed further.
The NRA decided to continue to closely look into the safety of the planned frozen walls. ”