AW: [ RadSafe ] The world's first permanent disposal sitefor usednuclear fuel will be at Forsmark, Sweden's SKB announcedtoday.

Franta, Jaroslav frantaj at
Fri Jun 5 14:38:28 CDT 2009


<snip>the longer sits before you reprocess, the easier the reprocessing can be. <end>

.....OTOH, much of the valuable Pu241 (fissile fuel) in SNF decays to useless Am241 (non-fissile TRU waste).



If you REALLY want non-retrievable, drop it into a deep ocean subduction zone.  Then wait a couple of eons.  

-----Original Message-----
From: radsafe-bounces at [mailto:radsafe-bounces at] On Behalf Of George Stanford
Sent: Thursday, June 04, 2009 4:46 PM
To: radsafe at
Subject: Re: AW: [ RadSafe ] The world's first permanent disposal sitefor used nuclear fuel will be at Forsmark, Sweden's SKB announcedtoday.

Franz & All:

      Thanks to Bjorn Cederval for the additional info.  At one of the sites
there is this:

>"The Swedish technique consists of storing two tonnes of spent fuel in 
>copper-coated canisters that weigh 25 tonnes each.
>"Each canister is welded shut using a special technique and then 
>mechanically deposited in a tunnel in the repository.
>"A buffer of bentonite clay, a volcanic ash that when mixed with water 
>swells to provide a watertight barrier and protect against earthquakes, 
>is then injected to fill the hole in the rock.
>"'The canisters are buried several metres apart so he rock can absorb 
>the heat generated by the radioactive materials in each copper 
>Engholm explains.
>"Once a tunnel in the repository is full, the tunnel is filled in with 
>a mixture of bentonite and rock."

      It does not appear that ease of retrievability is one of the design requirements.

         -- George


This e-mail, and any attachments, may contain information that
is confidential, subject to copyright, or exempt from disclosure.
Any unauthorized review, disclosure, retransmission, 
dissemination or other use of or reliance on this information 
may be unlawful and is strictly prohibited.  


Le présent courriel, et toute pièce jointe, peut contenir de 
l'information qui est confidentielle, régie par les droits 
d'auteur, ou interdite de divulgation. Tout examen, 
divulgation, retransmission, diffusion ou autres utilisations 
non autorisées de l'information ou dépendance non autorisée 
envers celle-ci peut être illégale et est strictement interdite.

More information about the RadSafe mailing list