[ RadSafe ] Icy future for Japan???

Tue Sep 3 16:07:09 CDT 2013

To be fair to the EPA, as this isn't being put forward as a permanent
solution, I don't think they would be as hard about the "human
intervention" aspect.  

One advantage of the freeze wall over the underground concrete barrier
is that you just know that if they use concrete about the time they
finish they will need to lay some pipe or something through where they
now have a solid wall, and the debris from the wall would be a pain to
deal with (though they are going to be very good at handling
contaminated concrete before they are done.)

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of
JPreisig at aol.com
Sent: Tuesday, September 03, 2013 1:19 PM
To: radsafe at health.phys.iit.edu
Subject: Re: [ RadSafe ] Icy future for Japan???

Radsafe:

     If this project were in the USA (thankfully  not!!!), the EPA would
probably require a passive barrier system (not much human  intervention
allowed) and the system would have to remain in place for 300 or  more
years.
Concrete might pass these tests.  I doubt the freeze wall concept  would
pass these tests.

    Even if there were slight leaks in a concrete barrier  system, the
ocean would still provide considerable dilution.  However, the  project
is in Japan, and they can do what their regulators allow/approve.

    The Japanese should probably head up to Chernobyl and  see the
Sarcophagous around the Chernobyl reactor, and engineer a solution from
there.  My heavens, when will fusion come online???

    Joe Preisig

In a message dated 9/3/2013 2:21:05 P.M. Eastern Daylight Time,
Mike.Brennan at DOH.WA.GOV writes:

There  are a number of plusses and minuses for the freeze wall concept.
It can be  easier to ensure solid barrier (one with no leaks) than you
get by pumping  concrete into the ground.  As long as you keep the
refrigerant  pumping, it should be self-healing.  It is fairly easy to
expand in  almost any direction.  When you are done with it, it is easy
to make  go away.  

It does, however, require a lot of electricity, and  pipes in the
ground, and probably some chemicals that can cause  problems.  I don't
believe anyone's ever tried something this big  before, and certainly
not
expecting it to be in place for as long.   

-----Original Message-----
From:  radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu]  On Behalf Of Perle, Sandy
Sent: Tuesday, September 03, 2013 10:55 AM
To:  The International Radiation Protection (Health Physics) Mailing
List
Subject: Re: [ RadSafe ] Icy future for Japan???

And concrete  doesn't melt!

-----------------------------------
Sander C.  Perle
President
Mirion Technologies
Dosimetry Services  Division
2652 McGaw Avenue
Irvine, CA 92614

+1 (949) 296-2306  (Office)
+1 (949) 296-1130 (Fax)

Mirion Technologies:  http://www.mirion.com/ "Protecting people,
property and the  environment"

From:  "JPreisig at aol.com<mailto:JPreisig at aol.com>"
<JPreisig at aol.com<mailto:JPreisig at aol.com>>
Reply-To:  "The International Radiation Protection (Health Physics)
Mailing  List"
<radsafe at health.phys.iit.edu<mailto:radsafe at health.phys.iit.edu>>
Date:  Tuesday, September 3, 2013 10:51 AM
To:  "radsafe at health.phys.iit.edu<mailto:radsafe at health.phys.iit.edu>"
<radsafe at health.phys.iit.edu<mailto:radsafe at health.phys.iit.edu>>
Subject:  [ RadSafe ] Icy future for Japan???

Radsafe:
CNN  News is reporting that Japan is looking at  freezing the ground
around  the Fukushima reactors to keep the radioactivity from  reaching
the  Ocean.  Is there no concrete in Japan???  Isn't dilution   the
solution to pollution????
Regards,    Joe  Preisig
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