TEPCO halts work to remove radioactive water
Amplify’d from www3.nhk.or.jp
TEPCO halts work to remove radioactive water
Tokyo Electric Power Company suspended the operation on Tuesday morning after the condenser became full of water.
The work began on Thursday after water in the basement of the turbine building was found to contain radiation about 10,000 times higher than would normally be found inside an operating nuclear reactor.
The Nuclear and Industrial Safety Agency says the water is now about 20 centimeters deep, half the initial level.
TEPCO is studying a plan to move water from a tunnel outside the turbine building into an on-site waste disposal facility with a capacity of more than 25,000 tons.
The water contains radioactive substances, and its level is only 10 centimeters below the top of the tunnel.
TEPCO also planned to move highly radioactive water from the basements of the turbine buildings of the No. 2 and No. 3 reactors into turbine condensers with a capacity of 3,000 tons each. But both condensers turned out to be full.
Plant workers are now using pumps that can draw 10 to 25 tons of water per hour to move water from the condensers' storage tanks into other tanks. They then hope to move water inside the condensers into the storage tanks and fill the condensers with the highly radioactive water from the basements.
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