Toshiba Corp says it has developed a revolutionary new technology designed to decontaminate radioactive soil from the area surrounding the stricken Fukushima Daiichi nuclear power plant.
The equipment fits in a truck container
The equipment stored inside the trailer
The technology was originally designed to purify radioactive water at the nuclear power plant, but its developers say it also removes 97% of cesium from radioactive soil.Toshiba said in a statement that the device is currently capable of dealing with 1.7 tons of radioactive soil per day, but it is theoretically possible for a machine capable of processing 100 times that amount. The device uses crystalline adsorbents that have the ability to selectivity remove radioactive ions from liquids, soil and waste.
It pumps low-concentration contaminated water with a pump and removes radioactive caesium from the water in a container that stores adsorbent. It can process a ton of contaminated water in one hour and lower the density of radioactive caesium in the water to 10 becquerels per kilogram, which is the value that Japan's Health, Labour and Welfare Ministry is considering to use as the new upper limit of the contamination of drinking water, or lower.
Toshiba also claims that the machine is capable of decontaminating radioactive ash from garbage incineration plants. The company hopes it will provide a nationwide solution to the problem of dealing with radioactive materials.
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