At Fukushima Daiichi, decommissioning the nuclear plant is far more challenging than water release
1 year, 7 months ago

At Fukushima Daiichi, decommissioning the nuclear plant is far more challenging than water release

Associated Press  

FUTABA, Japan — For the wrecked Fukushima Daiichi nuclear plant, managing the ever-growing volume of radioactive wastewater held in more than 1,000 tanks has been a safety risk and a burden since the meltdown in March 2011. But it’s just the beginning of the challenges ahead, such as the removal of the fatally radioactive melted fuel debris that remains in the three damaged reactors, a daunting task if ever accomplished. The government and the plant operator, Tokyo Electric Power Company Holdings, say the tanks must be removed to make way for facilities needed to decommission the plant, such as storage space for melted fuel debris and other highly contaminated waste. Earlier this year, a remote-controlled underwater vehicle successfully collected a tiny sample from inside Unit 1’s reactor — only a spoonful of the melted fuel debris in the three reactors. Matsumoto says “technical difficulty involving the decommissioning is much higher” than the water release and involves higher risks of exposures by plant workers to remove spent fuel or melted fuel.

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