Robot lifts bits of melted fuel at Fukushima plant | The Daily Star
12:00 AM, February 15, 2019 / LAST MODIFIED: 12:06 AM, February 15, 2019

Robot lifts bits of melted fuel at Fukushima plant

A robot arm has successfully picked up pebble-sized pieces of radioactive fuel at Japan's Fukushima nuclear plant in a complex operation seen as key to clean-up efforts after the 2011 meltdown, officials said yesterday.

Operator Tokyo Electric Power (TEPCO) on Wednesday sent down a remote-controlled probe to the melted fuel at the bottom of the plant's reactor 2, one of three that melted down after a massive earthquake and tsunami in March 2011.

It caught five small pieces of the fuel debris and lifted them up some five centimetres (two inches).

"We were able to confirm that the fuel debris can be moved," said Yuka Matsubara, a spokeswoman.

"We accomplished the objective of this test," she told AFP, adding that the company plans to actually remove some fuel debris as a sample by March next year.

Robots have already peered inside the reactor to allow experts to assess the melted fuel visually, but Wednesday's test was the first attempt to work out how fragile the highly radioactive material is.

Removing the melted fuel is considered the most difficult part of the massive clean-up operation in the wake of the worst nuclear disaster since Chernobyl.

It is not expected to begin until 2021, and TEPCO has other issues to resolve including how to dispose of large quantities of contaminated water stored in containers at the plant site.

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