The scarcity of information from inside the Fukushima Daiichi plant's nuclear reactors makes planning for the removal of melted fuel extremely difficult, a Tokyo Electric Power Company Holdings spokesperson says.
TEPCO official Kenichi Takahara explains about a facility to take samples of treated radioactive wastewater after dilution for testing before release, part of the facility for the releasing treated radioactive water to sea from the Fukushima Daiichi nuclear power plant, operated by Tokyo Electric Power Company Holdings , in Futaba town, northeastern Japan, Sunday, Aug. 27, 2023.
But Takahara said the scarcity of information from inside the nuclear reactors makes planning and development of the necessary robotic technology and a facility for the melted fuel removal extremely difficult.The projected decades-long release of treated water has been strongly opposed by fishing groups and criticized by neighbouring countries. China immediately banned imports of seafood from Japan in response.
Releasing the water into the sea is a milestone for the decommissioning of the plant, which is expected to take decades. But it is 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 Japanese government and TEPCO say releasing the water is an unavoidable step in the decommissioning of the plant. The pace will quicken later and about 1/3 of the tanks will be removed over the next 10 years, freeing up space for the plant's decommissioning, said TEPCO executive Junichi Matsumoto, who is in charge of the treated water release. The water will be released over 30 years, but as long as melted fuel stays in the reactors, it requires cooling water under the current prospect.
Spent fuel removal from the Unit 1 reactor's cooling pool is set to start in 2027. The reactor top is still covered with debris from the explosion 12 years ago and needs to be cleaned up after putting a protective cover to contain radioactive dust.
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