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Better Nuclear Waste Storage Plans than Yucca Mountain
NuclearRampage writes "Technology Review has an in-depth article about A New Vision for Nuclear Waste based on the premise that 'storing nuclear waste underground at Yucca Mountain for 100,000 years is a terrible idea.' The article looks at the current DOE plans for Yucca, its shortcomings and what temporary solutions we have to use while a better permanent plan is formulated."
A Slashdot / The Onion Tagteam Special
we'll have genetically engineered winged monkeys who will fly all our nuclear waste into outer space.
Those won't work, the wings are useless in space. We have to wait for the genetically engineered monkeys with liquid oxygen and fuel tanks. That'll be another few hundred years.
Trolling is a art,
One, is storing nuclear waste at Yucca Mountain really a "terrible" idea? Storing nuclear waste in the middle of a major city would be a terrible idea. Storing nuclear waste in a volcano would be a terrible idea. Dumping nuclear waste in the ocean would be a terrible idea. Storing nuclear waste at Yucca mountain may not be the best idea, or a great idea, it may even be a bad idea, but is it really a "terrible" idea? Or is saying it's a "terrible" idea one of those little pieces of hyperbole designed to subconsiously sway an argument.
Second, after about a thousand years even high-level radioactive waste is only going to be about as radioactive as the ore it was mined from. Not that 1000 years is a trivial length of time, but is saying we can't protect this material for "100,000 years" really a valid argument, or is it another one of those bits of hyperbole?
But I forgot, this is Slashdot, where we're pro nuclear power, but anti nuclear waste.
I know, -1 troll, but I had to say it.
The real problem with Yucca Mountain is the water table issue and the fact that most of these waste materials are extremely toxic. Nuclear reactors do not produce large amounts of isotopes "hundreds of thousands of times more radioactive" than "natural" uranium. And if they did, the half-life for them would be extremely short. The reason it takes millions of years for these waste materials to become functionally inert is because they are alpha emitters with very long half-lives. In other words, they do not produce large amounts of dangerous radiation. As they decay they will hit stages of greater radiation, but remember, alpha particles cannot even penetrate the layer of dead skin cells covering our bodies. A sheet of paper is strong enough shielding. Beta emmiters are somewhat more dangerous, but not significantly so. Additionally, while alpha particle radiation can still cause mutagenic aberrations if it can get passed your clothes and skin; the real danger is application to an open wound, inhalation, or ingestion of the radioactive materials. Not only does this allow the alpha particles to damage sensitive internal organ tissue, but the materials themselves are highly toxic. This is one of the reasons that radon (the end product of the uranium in the earth naturally decaying) in our basements is such a concern. Radon being gaseous enters our lungs where the alpha particles can actually do damage.
Chernobyl's problem was not the release of radiation into the atmosphere. That is disapated very rapidly by prevailing winds and does not affect the surrounding area significantly (not from a single event such as that). The problem with Chernobyl was that when the top blew chunks of radioactive debris like pieces of the graphite cooling system rained down over the surrounding countryside and got into the ground and the water supply.
Most of the deaths in Nagasaki and Hiroshima were caused by the shockwave and the subsequent fires, not the radiation. This is not to say that there weren't many people killed by radiation, there were. But those individuals dying of cancer caused by those blasts are the individuals that were present at the time of the attacks. Both areas are still thickly settled and do not have higher than normal cancer rates outside of the population of the bomb drop survivors.
Additionally, far larger amounts of the same materials used and produced in nuclear power production (including uranium 235, uranium 238, and thorium among others) are pumped into our atmosphere every day by coal burning plants. In fact, if we took all the radioactive materials we send into the air every year and put them in nuclear reactors, we'd be able to make more energy that the coal plants that put them into the atmosphere did during the same timeframe.
On top of that, if breeder and pellet based plutonium reactors were actual in service we could use the waste from standard light water reactors to feed breeder reactors whose waste would feed the pellet based reactors. Drastically reducing the amount and lethality of the nuclear waste that we'd ultimately have to store.
Uranium-238 Decay Series
Nuclide Half-Life Radiation
U-238 4.468 109 years alpha
Th-234 24.1 days beta
Pa-234m 1.17 minutes beta
U-234 244,500 years alpha
Th-230 77,000 years alpha
Ra-226 1,600 years alpha
Rn-222 3.8235 days alpha
Po-218 3.05 minutes alpha
Pb-214 26.8 minutes beta
Bi-214 19.9 minutes beta
Po-214 63.7 microseconds alpha
Pb-210 22.26 years beta
Bi-210 5.013 days beta
Po-210 138.378 days alpha
Pb-206 stable
Once more unto the breach dear friends...