The conditioning of nuclear waste that some states plan to bury deep underground (like France in Bure) does not take into account an interaction between certain compounds that could accelerate their degradation, warns a study published Monday. In several countries, the most radioactive ultimate waste is packaged in blocks of crystallized glass poured into stainless steel cylinders, a vitrification intended to ensure the confinement of radioactivity in the very long term for materials which can be radioactive during tens of thousands of years. But a study led by the American University of Ohio, published in the journal Nature Materials , highlights the fact that the corrosion of glass or ceramic used to confine this waste is “significantly accelerated” under certain conditions . “It’s unexpected. Until now, it was considered that stainless steel was inert, that it would end up oxidizing despite its name, but that vis-à-vis the glass which contains radioelements it played no role”, explained a the authors of the study Stéphane Gin, researcher at the French Atomic Energy Commission (CEA).
Le Quotidien 28th Jan 2020 read more »
Ars Technica 28th Jan 2020 read more »
The US is at risk of being contaminated with decades-old nuclear waste because of poor storage techniques, experts claim. New research published in the journal Nature Materials has revealed the material multiple countries intend to use to store high-level radioactive waste will probably degrade much more quickly than first thought.
Daily Star 28th Jan 2020 read more »