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Japan:French company to decontaminate Daiichi water + Related News

Wednesday, April 20, 2011

Laaska News April 20,2011

French nuclear reactor maker Areva says it has agreed with the Tokyo Electric Power Company to build a facility to decontaminate radioactive water at the compound of the Fukushima Daiichi nuclear power plant.

CEO Anne Lauvergeon told reporters in Tokyo on Tuesday that Areva — one of the world’s largest nuclear energy firms — will build the facility to remove radioactive substances from the contaminated water.

The facility is to use chemical agents to remove radioactive iodine and cesium from contaminated water. The concentration of the radioactive substances is to be reduced to one-one thousandth to one-ten thousandth of the current level. A similar system is already in place in France.

Lauvergeon said it is most important to decontaminate the water at the plant, and that her company will try to do this in every possible way.

TEPCO told reporters on the same day that it has adopted Areva’s proposal. The company says it will first transfer the contaminated water into a waste processing facility at the plant, and then decontaminate 1,200 tons of the water per day. It hopes to use decontaminated water to cool the reactors.

TEPCO hopes to start operating the decontamination facility in June.

Tokai nuclear plant holds emergency drill




The operator of the Tokai Daini nuclear power plant in eastern Japan has conducted a drill to prepare for a complete loss of power to the plant’s reactor.

The Japan Atomic Power Company held the drill at the plant in Ibaraki Prefecture on Tuesday to see if backup systems would keep the reactor cool in a situation similar to that which led to the crisis at the Fukushima Daiichi plant.

Workers tested a procedure for connecting a power generator truck to a switchboard at the reactor, and practiced using an emergency pump to draw in and store seawater for dousing the reactor.

The firm says the measures would not be enough to keep the reactor cool in an emergency, and that the company must introduce a more high-powered mobile generator.

In the March 11th earthquake, the reactor shut down automatically and a diesel generator kicked in after the start of a power blackout to continue pumping of water into the reactor. But the tsunami disabled one of the plant’s backup pumps.

The firm says it will continue to improve its emergency response measures to win the trust of residents around the plant.


Laaska News.