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Japan:New system improves Fukushima decontamination

Saturday, August 20, 2011

Laaska News  August 20,2011

Tokyo Electric Power Company says it has succeeded in increasing the capacity of a water decontamination system at the Fukushima Daiichi nuclear power plant by 1.5 times.

The utility began to use a Japanese-made system on Thursday along with a French-made system to remove radioactive substances from water. The water is then being injected back into the reactors to cool them.

TEPCO decided to introduce the new system as the existing decontamination system was plagued with problems, and the foreign-made components repeatedly clogged up.

The firm tested the performance of the new equipment for 2 days by running the contaminated water through it after the water had gone through the existing device.

Full-fledged operation of the new system alone began on Friday night.

TEPCO says the decontamination level using both systems has been increased by 1.5 times to 70 tons per hour from the original 45 tons.

The system’s operating rate has been only 69 percent of full capacity, far below the initial target of 90 percent.

The firm hopes the new addition will boost the capacity and help achieve stable circulatory cooling of the reactors.


Laaska News.