Antinuclear

Australian news, and some related international items

UK nuclear waste canisters decaying faster than expected – (could this happen in South Australia?)

Telegraph 19th June 2018 , Highly dangerous plutonium canisters are “decaying faster than anticipated”at the Sellafield nuclear plant and present an “intolerable risk” if they started to leak, the spending watchdog has warned.

Government scientists have now agreed to spend an extra £1billion to make them safe by wrapping them in packaging, the National Audit Office said today. Britain has the largest amount of civil plutonium – a bi-product of nuclear fuel reprocessing – in the world, around 40 per cent of the global total.

Most of the plutonium is stored at Sellafield in Cumbria, where it is managed by the Nuclear Decommissioning Authority (NDA). The problems have occurred because some of the plutonium canisters are judged to be “unsuitable” for storage in a new facility which only opened in 2012, the NAO said.

Staff are now racing against the clock to build a new £1.5billion facility – and are having to make contingency plans for the next two years while the new depot is constructed. The NAO report – titled ‘Progress with reducing risk at Sellafield’ – said: “Some canisters that have already been transferred into modern storage will have to be repackaged through the SRP [the residue store retreatment plant] facility to ensure they do not degrade.”

The report adds: “A leak from any package would lead to an ‘intolerable’ risk as defined by the Office for Nuclear Regulation. “The NDA has therefore decided to place the canisters more at risk in extra layers of packaging until SRP is operational. It has not yet submitted a new business case to support these contingency arrangements.”

Dr Doug Parr, chief scientist for Greenpeace UK, said: “In some ways it is fortunate that this failure was detected whilst the plutonium was still accessible, and the cost of patching the canisters is only £1billion. If an inaccessible deep waste dump were to fail in a similar way, who knows what the full cost might be?”
https://www.telegraph.co.uk/politics/2018/06/19/sellafield-plutonium-decaying-faster-anticipated-intolerable/

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June 22, 2018 - Posted by | General News

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