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Tokyo Bay cesium even higher than levels reported off Fukushima — Nearly entire sea floor contaminated by 2014 (VIDEO)
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One facility for removing cesium was created by Kurion Inc. of Irvine, Calif., featuring equipment so big it could only be transported by a special Russian aircraft, Tepco officials said. Another was made by France's Areva SA, which came up with an intricate system of pipes and valves that took 50 welders more than a month to put together, Tepco said. The Areva system isn't being used now.
A third cesium-removal facility was made by Toshiba Corp. 6502.TO -3.46% Tepco says that one is the main decontamination system in use. Toshiba and support companies deploy 140 workers to operate and monitor the water-processing system, and another 20 to oversee pumping and circulation, through a 2.5-mile line of pressure-resistant hoses. Tepco has two sets of backup lines in place as well, in case the main line gets blocked and needs to be flushed out.
Some of this cleaned-up water goes back up to the truck at the top of the hill, to get rerouted through the reactors.
But much of it gets stored in the squat, gray tanks that have replaced the trees that once grew throughout the sprawling Fukushima Daiichi compound.The tanks store water that has a high saline content, which can damage equipment, explains one Tepco official. Water at other stages of processing are stored in containers of other shapes and colors. Tepco has the capacity to store 165,000 tons of contaminated water, said Katsuhiko Iwaki, deputy manager of the Fukushima Daiichi stabilization center. About 125,000 tons of water already is being stored. The company plans to expand capacity to about 205,000 tons, he said.
Fukushima Daiichi also has one floating container for contaminated water. "There's Megafloat,'' said Mr. Iwaki, pointing to a big, flat AstroTurf-covered barge quietly anchored in the sea by the side of reactor No. 1. The barge was originally created to be a floating fishing pier for the southwestern city of Shizuoka.Source: [ link to online.wsj.com] Forgot the Date, this is from 29 Feb 2012
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