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Is nuclear waste able to be recycled? Would that solve the  nuclear waste problem?

Radioactive Wastes from Nuclear Reactors, Questions and Answers, Gordon Edwards 28 July 24.

Well, you know, the very first reactors did not produce electricity. They were built for the express purpose of creating plutonium for atomic bombs. Plutonium is a uranium derivative. It is one of the hundreds of radioactive byproducts created inside every uranium-fuelled reactor. Plutonium is the stuff from which nuclear weapons are made. Every large nuclear warhead in the world’s arsenals uses plutonium as a trigger.

But plutonium can also be used as a nuclear fuel. That first power reactor that started up in 1951 in Idaho, the first electricity-producing reactor, was called the EBR-1 — it actually suffered a partial meltdown. EBR stands for “Experimental Breeder Reactor” and it was cooled, not with water, but with hot liquid sodium metal.

By the way, another sodium-cooled electricity producing reactor was built right here in California, and it also had a partial meltdown. The dream of the nuclear industry was, and still is, to use plutonium as the fuel of the future, replacing uranium. A breeder reactor is one that can “burn” plutonium fuel and simultaneously produce even more plutonium than it uses. Breeder reactors are usually sodium-cooled.

In fact sodium-cooled reactors have failed commercially all over the world, in the US, France, Britain, Germany, and Japan, but it is still the holy grail of the nuclear industry, the breeder reactor, so watch out.

To use plutonium, you have to extract it from the fiercely radioactive used nuclear fuel. This technology of plutonium extraction is called reprocessing. It must be carried out robotically because of the deadly penetrating radiation from the used fuel.

Most reprocessing involves dissolving used nuclear fuel in boiling nitric acid and chemically separating the plutonium from the rest of the radioactive garbage. This creates huge volumes of dangerous liquid wastes that can spontaneously explode (as in Russia in 1957) or corrode and leak into the ground (as has happened in the USA). A single gallon of this liquid high-level waste is enough to ruin an entire city’s water supply.

In 1977, US President Jimmy Carter banned reprocessing in the USA because of fears of proliferation of nuclear weapons at home and abroad. Three years earlier, in 1974, India tested its first atomic bomb using plutonium from a Canadian research reactor given to India as a gift.

The problem with using plutonium as a fuel is that it is then equally available for making bombs. Any well-equipped group of criminals or terrorists can make its own atomic bombs with a sufficient quantity of plutonium – and it only takes about 8 kilograms to do so. Even the crudest design of a nuclear explosive device is enough to devastate the core of any city.

Plutonium is extremely toxic when inhaled. A few milligrams is enough to kill any human within weeks through massive fibrosis of the lungs.

A few micrograms – a thousand times less– can cause fatal lung cancer with almost 100% certainty. So even small quantities of plutonium can be used by terrorists in a so-called “dirty bomb”. That’s a radioactive dispersal device using conventional explosives. Just a few grams of fine plutonium dust could threaten the lives of thousands if released into the ventilation system of a large office building.

So beware of those who talk about “recycling” used nuclear fuel. What they are really talking about is reprocessing – plutonium extraction – which opens a Pandora’s box of possibilities. The liquid waste and other leftovers are even more environmentally threatening, more costly, and more intractable, than the solid waste. Perpetual isolation is still required. ————

www.ccnr.org/Radioactive_Q&A_2024.pdf

July 29, 2024 - Posted by | - plutonium, reprocessing

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