this post was submitted on 24 Aug 2025
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Operated from 1972 to 1996 and produced 119 billion kilowatt hours of energy

Dry cask storage is a method for safely storing spent nuclear fuel after it has cooled for several years in water pools. Once the fuel rods are no longer producing extreme heat, they are sealed inside massive steel and concrete casks that provide both radiation shielding and passive cooling through natural air circulationβ€”no water is needed. Each cask can weigh over 100 tons and is engineered to resist earthquakes, floods, fire, and even missile strikes. This makes it a robust interim solution until permanent deep geological repositories are available. The casks are expected to last 50–100 years, though the fuel inside remains radioactive for thousands. Dry cask storage reduces reliance on crowded spent fuel pools, provides a secure above-ground option, and buys time for nations to develop long-term disposal strategies. In essence, it’s a durable, self-contained β€œvault” for nuclear waste

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[–] Inucune@lemmy.world 81 points 3 weeks ago (1 children)

We have disposal technology, it just isn't economical or politically supported: the material can be reprocessed, splitting it into the transuranic elements. The uranium and plutonium can be reused as fuel, americium and other elements with industrial use directed as such. The waste left that has no use can then be stored in a smaller footprint... And as a bonus to reprocessing, would only be hazardously radioactive for 150 years rather than thousands.

[–] andyburke@fedia.io 39 points 3 weeks ago (7 children)

All that shit costs money. Just toss the waste wherever and wait for public funds to appear, amiright?

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[–] Derpenheim@lemmy.zip 47 points 3 weeks ago (2 children)

This post is incorrect, and harmful. Casks do not only last for up to 100 years. They are given a 20 year certificate, and a renewable 40 year certificate inperpetuity pending safety inspection of the casket.

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[–] Track_Shovel@slrpnk.net 15 points 3 weeks ago (1 children)

That's similar to what's done with a lot of mine wastes, which are just as harmful, if not more.

Millions of tonnes of metal-rich tailings are held back at a given mine by their engineered dams. The only thing stopping a 'tee hee whoops' is routine inspection and maintenance, even in post-closure

[–] Derpenheim@lemmy.zip 13 points 3 weeks ago (1 children)

It is not at all similar. Those mines were just sealed off from the outside world with the dangerous materials therein left to polluted surrounding ground waters. These are stand alone and separated containers meant to hold these wastes indefinitely, until such time as their half lives render them no longer a threat.

[–] Track_Shovel@slrpnk.net 12 points 3 weeks ago

You're thinking abandoned mines. Closed mines are different, and the difference is big. With closed mines the objective is to return the land to its preexisting land use or one that supports something else equally as valuable.

To do that, wastes are managed in a variety of ways. Usually the biggest issues are related to water quality and preventing contamination. Landscapes are re-established and reclaimed. It's not just dust your hands and walk away like it used to be.

[–] Cethin@lemmy.zip 10 points 3 weeks ago* (last edited 3 weeks ago)

Edit: sorry, I thought you were arguing they dontast that long. My brain skipped the "only" at the beginning.

The image you linked literally says they last 100+ years. Sure, they need to be checked on to make sure nothing is going wrong, but when is that not the case with hazardous material storage?

[–] AA5B@lemmy.world 40 points 3 weeks ago (1 children)

Wow. That’s excellent perspective on how little waste nuclear plants create!

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[–] snake@lemmy.world 38 points 3 weeks ago (1 children)

Doesn’t seem like much, tbh

It really isn't burning coal etc. Will kill way more people and do way more damage than just having this sit around chilling

[–] GreenKnight23@lemmy.world 35 points 3 weeks ago (1 children)

there's an awful lot of people here that don't understand volume over output. this is a small amount for 24 years when compared to the volume of toxic waste that fossil fuel plants put out.

[–] phoenixz@lemmy.ca 28 points 3 weeks ago (1 children)

Even the amount of radiation is lower, as coal power plants output quite a bit of radioactive material

[–] corsicanguppy@lemmy.ca 26 points 3 weeks ago* (last edited 3 weeks ago) (2 children)

This makes it a robust interim solution until permanent deep geological repositories are available.

Molten Salt Reactors can mostly eat these; until the newer ones come out that can eat these more easily.

Technology will find a way, with proper resourcing.

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[–] Skysurfer@slrpnk.net 24 points 3 weeks ago (2 children)

"The casks are expected to last 50–100 years...". Let's see 2025-1972=53 years. Sounds like it is nearing time to start replacing these or to figure out a better solution to reuse the high level waste.

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[–] mojofrododojo@lemmy.world 22 points 3 weeks ago (9 children)

I'm pro-nuclear power. don't get me wrong. but....spent nuclear fuel does not account for all the radioactive waste produced in fission power production. even the majority of it by mass or volume. low and intermediate radioactive waste represents a MUCH larger footprint

[–] Track_Shovel@slrpnk.net 6 points 3 weeks ago

Very much so. Anything that gets too hot has to be interred.

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[–] starman2112@sh.itjust.works 16 points 3 weeks ago (6 children)

Nuclear energy is downright silly. "These rocks get really hot when we put them close to each other, let's boil water with it to turn turbines" lmao like something outta the scp foundation

[–] stringere@sh.itjust.works 13 points 3 weeks ago (1 children)

Computers run on magic runes written in gold.

on top of that, the information represented within them modifies itself, like characters dancing around and shaping new patterns, hence the nickname of "dancing spirits"

[–] Coil@lemmy.world 11 points 3 weeks ago

Even weirder when you think about cpus. "Here's a rock we filled with lightning and tricked into thinking."

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[–] BestBouclettes@jlai.lu 15 points 3 weeks ago (11 children)

It would be nice to see a comparison with the waste generated by other sources, over the same period and the same amount of energy generated

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[–] McNasty@sh.itjust.works 13 points 3 weeks ago (4 children)

I don't trust modern US corporations to manage anything.

How long until people can live near Chernobyl?

[–] Aeao@lemmy.world 8 points 3 weeks ago

People could live near Chernobyl on day one.

[–] GhostedIC@sh.itjust.works 6 points 3 weeks ago (1 children)

I get what point you're trying to make but it still is kind of ironic you're using a very distinctly communist failure which happened due to the communist power structure every step of the way as the example here.

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[–] flandish@lemmy.world 12 points 3 weeks ago (1 children)

I too have played satisfactory. Next step, more containers on top of these.

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[–] smokinliver@sopuli.xyz 12 points 3 weeks ago (13 children)

until permanent deep geological repositories are available

I have been growing up with the outlook that one day we might find these yet somehow this promise/hope still sounds exactly the same many many years later

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[–] chunes@lemmy.world 10 points 3 weeks ago (11 children)

What ever happened to Yucca Mountain? I thought that was supposed to solve America's nuclear waste problem for good.

[–] El_guapazo@lemmy.world 15 points 3 weeks ago (1 children)

They've been talking about that since I was in primary school in the 1980s.

The problem is the weak railroad and interstate infrastructure. There are too many derailments and crumbling bridges to transport such 'hot' materials safely. There's also the danger of hijacking and making of dirty bombs.

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[–] alsimoneau@lemmy.ca 6 points 3 weeks ago (2 children)

What I don't get is if the waste is emitting enough radiation to be harmful, why don't we use it to make power.

[–] douglasg14b@lemmy.world 15 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

Power generation is all about thermal differential.

If the differential is too low, then your power generation either doesn't work or is incredibly inefficient.

Spent fuel is not radioactive enough to produce a large enough thermal differential to run steam turbines. In some cases it can be reprocessed through some expensive means and then used again. However, the key word here is expensive. It's considerably more economical to use new fuel than it is to reprocess old fuel.

Breeding reactors are a thing but their economic viability is questionable.

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[–] mkhopper@lemmy.world 6 points 3 weeks ago (2 children)

The casks are expected to last 50–100 years, though the fuel inside remains radioactive for thousands.

In other words, kicking the can down the road. "I hope they find a solution, but I don't care. I'll be dead by then."

[–] Derpenheim@lemmy.zip 12 points 3 weeks ago (15 children)

Related

The casks are continuously recertified for as long as the material needs to be held. Radioactive material decays into non radioactive elements over the course of its half life. This is not kicking the can down the road.

The nuclear energy industry is the safest industry anyone has ever worked in, and it is intentionally so. Please go watch any number of resources on this fact.

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[–] Track_Shovel@slrpnk.net 8 points 3 weeks ago

Welcome to the world of mining. Metal leaching/acid rock drainage (ML/ARD) is a big issue associated with waste rock, and the solution is often an engineered cover that limits oxygen and water ingress (as these react with sulphur, lowering pH and releasing bound metals in the form of leachate). These covers often use geomembranes that have lifespans of 25 years... Yet you have 300 million tons of ML/ARD waste rock entombed by them.

Look up the Giant Mine - that one will make your head spin.

[–] docoptix@lemmy.world 6 points 3 weeks ago (2 children)

So I guess the high security double fencing is not necessary then?

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