nuclear-news

Danger of MOX nuclear reprocessing: it’s the plutonium, stupid

From Plutonium to Power, Spiegal Online 09/07/2012 Russia To Produce Electricity with Former Nukes By Kerstin Brandt  “…….What makes the new reactor a particularly delicate case, though, is its fuel.

Of all the bequests of the atomic age, the heavy metal that takes its name from Pluto, god of the underworld, is considered the most dangerous. A nuclear chain reaction initiated with six kilograms (13 pounds) of the material over Nagasaki, Japan, on Aug. 9, 1945, immediately killed 80,000 people. Breathing in just a few milligrams of plutonium dust is fatal to humans.

Vast amounts of this element, which almost never occurs naturally, now exist on Earth. Well more than 1,000 tons of the plutonium, which is one component of spent fuel from nuclear reactors, now sits in spent fuel pools and interim storage facilities, awaiting an indeterminate fate.

Then there are a further estimated 250 tons of weapons-grade plutonium, which consists of the fissile isotope Pu-239 at its highest possible concentration. This is a material produced for a single, military purpose: to trigger the most devastating detonations possible, as reliably as possible.

But what meant power during the arms race has since become a curse. Plutonium is enormously expensive to secure — and completely useless for civilian purposes.

For many years, permanent storage facilities for nuclear waste were the solution of choice among experts in the field. Melted down in a glass matrix and mixed with other highly radioactive nuclear waste, plutonium could be made to disappear deep into the Earth, protected from the elements and from the reach of untrustworthy militaries.

These days, though, that method is essentially off the table, because tough disarmament negotiations reach their goals more quickly when the end result is profit rather than unpredictable storage facility costs. The world’s military superpowers have done this once before: In 1993, as part of the “Megatons to Megawatts” nonproliferation program, the US pledged to buy 500 tons of weapons-grade uranium from Russia. Diluted down to a level suitable for use in a nuclear plant, fuel obtained from Soviet nuclear bombs currently generates one tenth of the United States’ electricity……http://www.spiegel.de/international/world/energy-from-the-bomb-russia-to-produce-electricity-with-former-nukes-a-854318.html

September 10, 2012 - Posted by Christina Macpherson | - plutonium, reprocessing