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Japan:Polyester covering installed at No.1 reactor + Related News

Monday, October 17, 2011

Laaska News Oct. 17,2011

A covering of thick polyester sheets has been attached to steel frames at the damaged No.1 reactor building at the Fukushima Daiichi nuclear plant.

Tokyo Electric Power Company plans to complete the covering and verify its effectiveness by the end of October.

The work which began in late June is designed to decrease the release of radioactive materials into the air. The No.1 reactor was severely damaged in a hydrogen explosion in March.

A large crane was used to attach the sheets to the steel frame encasing the reactor building.

The utility company will conduct a test-run to see how the system captures radioactive materials from the building with a filter.

It estimates the system should be able to remove about 90 percent of the radioactive materials.

Release of the radioactive materials into the atmosphere needs to be reduced before residents who have evacuated can return to their homes.

TEPCO is considering installing covers on the No. 3 and 4 reactors which were also damaged.


Cold shutdown will be achieved within this year

The Japanese government and Tokyo Electric and Power Company say that a cold shutdown of the crippled Fukushima Daiichi nuclear power plant will be achieved by the end of this year.

It will be included in a revised timetable for containing the nuclear crisis that will be issued on Monday.

They say the temperatures around the No.1, No.2, and No.3 reactors are less than 100 degrees Celsius and the amount of radioactive material being emitted has dropped to about half the level of a month ago.

The latest survey showed estimated radiation levels of about 100 million becquerels per hour.

Also a giant polyester covering for the No.1 reactor building will be completed by the end of October.

The government and TEPCO say measures to achieve the state of a stable cold shutdown are progressing steadily.

On Monday TEPCO will submit to the government nuclear safety measures that will apply to its work to maintain a state of cold shutdown over the coming 3 years.

Goshi Hosono, the minister in charge of the nuclear disaster said in September that they would try to achieve cold shutdown by the end of this year. It had originally been planned for January next year.

Laaska News.

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