TEPCO to build iron wall on ocean side of Fukushima Daiichi plant to prevent radioactive water leaks

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Tokyo Electrical Electrical power Co. (TEPCO) mentioned Tuesday that regardless of the injury at its crippled Fukushima No. 1 nuclear power plant becoming far a lot more extensive than previously thought at three of the complex’s faulty reactors, it would adhere to its earlier roadmap of six-to-nine-month to bring the nuclear crisis to an finish.

The operator of the damaged Fukushima Daiichi nuclear power plant plans to build an iron wall on the ocean side of the plant to prevent radioactive water from leaking into the sea.

Tokyo Electric Power Company says more than 110,000 tons of highly radioactive water remains in the basements of reactor buildings at the plant.

The utility will use thousands of iron pipes to create an 800-meter-long wall surrounding the water intakes of 4 reactor facilities.

Each pipe, 22-meters long and one meter wide, will be installed deep below the sea bed to stop the flow of groundwater.

There is growing concern that the water may eventually pass via underground water into the ocean.

The firm says it will also prepare for a rise in underground water levels around the plant after the wall is built.

It says it will closely monitor the level of groundwater and consider pumping it away to prevent overflow.

Construction will begin as early as the end of this year and be completed in about 2 years.

Tuesday, September 06, 2011 07:11 +0900 (JST)

“As for the timetable of reaching the goals, there are several sorts of uncertain elements and dangers, but there is no adjust in the following target announced previously,” TEPCO officials mentioned in a press briefing on Tuesday, in an update to its original strategy.

TEPCOs  final week voided unique plans to flood the No. 1 containment chamber, which surrounds the reactor vessel, to prevent the fuel from overheating in a method that would have been known as water entombment.

The move came following the utility found that due to surprising low ranges of water, nuclear fuel rods had been completely exposed in a reactor at the crippled No. 1 Fukushima nuclear energy plan and melted fuel has dropped to the bottom of the pressure vessel



TEPCO stated a significant quantity of nuclear fuel is likely to have melted soon after becoming completely exposed and that almost all of the nuclear fuel at the Nos. 1-three units appeared to have melted in the early stages of the nuclear crisis soon after the earthquake and tsunami disrupted the cooling systems.

Also on Tuesday, Chief Cabinet Secretary Yukio Edano mentioned the government would accept an investigation by the International Atomic Power Agency into a series of accidents that have occurred at the plant and sparked domestic and international controversy.



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