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Japan:TEPCO finalizes plan to cool down reactors

Sunday, April 17, 2011

Laaska News April 17,2011
The operator of the crippled Fukushima Daiichi nuclear power plant has finalized a new plan to cool down the troubled reactors. Tokyo Electric Power Company will install a new cooling system that filters contaminated water and recirculates it back into the reactors.

Following the quake and tsunami, cooling systems broke down in reactors 1, 2 and 3. TEPCO workers have been pumping in cold water in an effort to keep them from overheating.

However, the water inside the reactors quickly becomes contaminated with high levels of radioactive substances. Due to possible structural damage in the quake, contaminated reactor water has been leaking into the basements of neighboring turbine buildings and service tunnels. This has impeded emergency repair work and created a disposal problem.

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To best deal with the present circumstances, TEPCO plans to first pump contaminated wastewater outside the turbine buildings where it can be more safely cooled and filtered. Radioactive substances and salt are removed and a continuous supply of treated water is circulated to gradually cool down the reactors.

TEPCO is scheduled to start operating the new cooling system by summer.

NHK.

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Laaska News.

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