Article View: alt.engineering.nuclear
Article #192Re: Disposal of Radioactive Waste
From: Bullwinkle J. Moose
Date: Tue, 09 May 2000 00:00
Date: Tue, 09 May 2000 00:00
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3723 bytes
The bigest technical dificulty to overcome would be how to place a large object very deep with in a subduction zone. A potential asset would be that the devivery vehicle could be thought of as 'disposable', so if the journy eventualy destroyed the vehicle, that would not be a prolem. If some sort of 'motor' or engin could be devised, that were in some way powered by water pressure, so that going deeper would inturn propel the vehicle further, a sort of sub-oceanic ramjet, it would be possible to get the object sufficently deep (several kilometers). At this depth, it is concivable that the surounding water would never come with in so much as a kilometer or two of the surface. Flow paterns of water at extreme depths would need to be studied to ensure this. If, infact the water at such depths esential stays there, then it would be practicle to deposit nuclear waste there. Security would be provided by placeing the material so deep, that it would be imposible to retreave. It is a ideal soloution, and a friendly one, as it is in effect placeing the material in as close to a natural habitat as radioactive material has available. indigo wrote: > -- > > "Ross Bradley" <ross@tarms.com> wrote in message > news:957754941.595999@server.tarms.com... > > Hi, > > > > A similar idea, but use a former uranium mine as the repository. Bind the > > waste into a glass/ceramic base (e.g.. Synrock (sp?)) and inter it at the > ex > > mine. If it is diluted enough with the binding agent then the waste could > > actually be less radioactive than the extracted ore, i.e. the dump would > > actually reduce the amount of radiation in the environment. Also if > > plutonium (half life 24,000 years?) and replaced the U238 (half life 4.3 > > billion years?) then you could argue that the site would be safer sooner > > :-). > > > > How fast to sub-sea subduction zones (if that is the correct term) move. > > i.e. drum of waste was buried where one part of the crust moves under > > another part a few km underwater, how long would it take the waste to move > > under the crust. For that matter, aren't most sub-sea oil wells stable? > If > > they weren't stable for a geological age then the oil would leak out. > > The idea of using subduction zones has been well studied. It would be > impossible to implement (my opinion) because of environmental concerns, even > though it is near/at the top of the methods for permanent disposal.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10ecc0,76584cf5b626f783 X-Google-Attributes: gid10ecc0,public X-Google-Thread: 107e5d,76584cf5b626f783 X-Google-Attributes: gid107e5d,public X-Google-Thread: 10c480,76584cf5b626f783 X-Google-Attributes: gid10c480,public X-Google-Thread: 102359,76584cf5b626f783 X-Google-Attributes: gid102359,public X-Google-Thread: fb19c,76584cf5b626f783 X-Google-Attributes: gidfb19c,public X-Google-Thread: 10df0c,76584cf5b626f783 X-Google-Attributes: gid10df0c,public From: "Bullwinkle J. Moose" <mcx2@tcac.net> Subject: Re: Disposal of Radioactive Waste Date: 2000/05/09 Message-ID: <39186F24.9D1EBB6A@tcac.net> X-Deja-AN: 621255613 Content-Transfer-Encoding: 7bit References: <8f1vof$fas$1@possum.melbpc.org.au> <8f2n6g$61p$1@nntp9.atl.mindspring.net> <39162523@news.rivernet.com.au> <957754941.595999@server.tarms.com> <shf6v3i05uh22@corp.supernews.com> X-Accept-Language: en Content-Type: text/plain; charset=us-ascii X-Complaints-To: newsabuse@supernews.com Organization: Posted via Supernews, http://www.supernews.com MIME-Version: 1.0 Newsgroups: alt.engineering.nuclear,aus.environment.misc,aus.politics,sci.energy,sci.engr.mining,sci.environment.waste