Asahi Headline: Incinerating radioactive material could contaminate environment

Published: May 22nd, 2012 at 10:34 am ET
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Subscription Only: Incinerating radioactive sewage sludge could contaminate environment
AJW by The Asahi Shimbun
By NOBUTARO KAJI/ Staff Writer
May 22, 2012

Incinerating the radioactive sludge that has piled up at sewage facilities across eastern Japan and burying it after mixing it with cement could increase the risk of cesium seeping into the environment, scientists say.

[...]

the results of a research team led by Hideo Yamazaki, a professor of environmental analysis at Kinki University, suggest the process may increase the risk of the transfer of radioactive cesium into the environment. Instead, the scientists found that adding clay to the incinerated material may offer a safer way of processing it.

[...]

The transfer rate soared to 2.87 percent when cement was added.

[...]

The Tokyo metropolitan government is burying it in landfill sites after mixing the ash with cement and water.

[...]

Published: May 22nd, 2012 at 10:34 am ET
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