information about Fukushima published in English in Japanese media info publiée en anglais dans la presse japonaise
14 Juillet 2014
July 9, 2014
http://www3.nhk.or.jp/nhkworld/newsline/201407091317.html
Aired on Jul. 9
Report on the Horonobe research center where the Japan Atomic Agency is studying the possibilities of final disposal of radioactive waste.
Reprocessing leaves behind highly toxic wastewater which is then mixed with heated glass and put into steel containers 1,3 metres high that weigh 500 kg each. These unit still emit radiation at an extremely high level (enough to kill a person in 20 seconds)
The disposal facility must be safe for a very long time (ca 100.000 years) and buried deep into the ground. At the moment the research facility is 250 m deep and 120 tons of water must be pumped out daily. It would have a capacity of 40.000 units and a total length of tunnels of 270 km. Tremors are also monitored constantly.
However the Science Council of Japan are voicing their concerns about this disposal option.
Where and how to safely store radioactive waste definitively? The question is not yet answered.
It has to be noted also that Horonobe so far has been dealing with research without real material.
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