Tags: Japan | Nuclear | plant | cleanup

Japan Releases 40-Year Nuke Plant Cleanup Plan

Wednesday, 21 December 2011 12:04 PM EST

Japan released a lengthy roadmap Wednesday to clean up and fully decommission a nuclear plant that went into meltdown after it was struck by a huge tsunami, a process the government said would take as many as 40 years.

Nuclear crisis minister Goshi Hosono acknowledged that decommissioning three wrecked reactors plus spent fuel rods at the Fukushima Dai-ichi plant was an "unprecedented project," and that the process was not "totally foreseeable."

"But we must do it even though we may face difficulties along the way," Hosono told a press conference.

Trade Minister Yukio Edano promised that authorities would move through the process "firmly while ensuring safety at the plant."

He also vowed to pay attention to the concerns of tens of thousands of residents displaced by the crisis when the plant was knocked out by Japan's March 11 earthquake and tsunami, in the world's worst nuclear crisis since the Chernobyl accident in 1986.

Under the plan, approved earlier Wednesday following consultation with experts and nuclear regulators, plant operator Tokyo Electric Power Co. will start removing spent fuel rods within two years from their pools located on the top floor of each of their reactor buildings.

After that is completed, TEPCO will start removing the melted fuel, most of which is believed to have fallen through the bottom of the core or even down to the bottom of the larger, beaker-shaped containment vessel, a process that is expected to be completed 25 years from now. The location and conditions of the molten fuel is not exactly known.

Completely decommissioning the plant would require five to 10 more years after the fuel debris removal, making the entire process up to 40 years, according to the roadmap.

The process still require development of robots and technology that can get much of the work remotely because of extremely nigh radiation levels inside the reactor buildings.

The decades-long process also would place an enormous financial burden on TEPCO. The ministers said that the total cost estimate can not be provided immediately, but promised that there will be no delay because of financial reasons.

Prime Minister Yoshihiko Noda announced last Friday that the plant has achieved "cold shutdown conditions," meaning the plant had been brought to stability in the nine months since the accident.

The announcement officially paves the way for a new phase that will eventually allow some evacuees back to less-contaminated areas currently off limits.

Experts say the plant 140 miles (230 kilometers) northeast of Tokyo is running with makeshift equipment and remains vulnerable to cold weather and earthquakes.

© Copyright 2024 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


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Japan released a lengthy roadmap Wednesday to clean up and fully decommission a nuclear plant that went into meltdown after it was struck by a huge tsunami, a process the government said would take as many as 40 years.Nuclear crisis minister Goshi Hosono acknowledged that...
Japan,Nuclear,plant,cleanup
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2011-04-21
Wednesday, 21 December 2011 12:04 PM
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