Magnus R. on nuclear wastes

Rolf Martens rolf.martens at mailbox.swipnet.se
Thu Aug 1 23:37:33 MDT 1996


Magnus R. on nuclear wastes                    [Posted: 02.08.96]


[I'm (re)posting the below by Magnus Redin, with only one small=20
note added by me, as "Appendix H" to my posting today:
{3} Why "reds" are "nukes" - Debate with Louis N. P.]


From: redin at lysator.liu.se (Magnus Redin)=20
Newsgroups: sci.energy=20
Subject: Re: Nuclear Waste Question=20
Date: 31 Jul 1996 17:20:49 GMT=20

(Andrew McNeil) writes:=20

> When I see the US's seemingly eternal debate over nuclear waste=20
> I can't help but wonder what OTHER countries do with there waste.=20
> I am especially interested in the disposal of high level waste.=20
> The problem would seem to be very tough for countries such as=20
> Germany or Sweden, since they are small and densely populated.=20
> Further, these countries have smaller economies and populations=20
> to spread disposal cost over.=20

Sweden is not densely populated, we are 8 591 000 (1990) on=20
410 929 km2 (excluding large lakes). Today's population density=20
dosen't matter for the final storage except for PR reasons.=20

If the storage fails it will probably happen somewere around the=20
next ice age. The problem with having it right below Stockholm is=20
that there is a larger risk that someone will drill thru the storage=20
area for whatever reason.=20

The cost for storage and disposal is not distributed on the=20
population via taxes but is payed by a small fee on each kwh=20
produced in nuclear powerplants.=20

[That fee is approximately SKR 0.02, or $ 0.003, per kWh. - RM]

The high level waste is now stored for something like two years in
pools inside the nuclear reactors. After that it is shipped by sea=20
to a storage facility (CLAB) near Oskarshamn where the spent fuel=20
and hot reactor parts are stored in large pools for about 20 years.=20

After that the intention is to package it in steel containers with=20
a thick copper cladding. Those containers are then to be=20
permanently stored/disposed in bedrock at 500m depth where=20
they probably will be put in individual holes drilled in tunnel=20
floors and surrounded with bentonite clay that stops waterflows by=20
expanding when it absorbs water. The tunnels will then be=20
backfilled with bentonite and sand. This disposal method also=20
makes it fairly easy to reach the fuel if future generations wish
to reuse it or if they figure out a better disposal method.=20

Regards,

 -- -- Magnus Redin=20

Lysator Academic Computer Society redin at lysator.liu.se=20
Mail: Magnus Redin, Bj=F6rnk=E4rrsgatan 11 B 20, 584 36=20
LINK=F6PING, SWEDEN Phone: Sweden (0)13 260046=20
(answering machine) and (0)13 214600=20



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