ML19249D572
| ML19249D572 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 07/23/1979 |
| From: | Banaszak L WASHINGTON UNIV., ST. LOUIS, MO |
| To: | Hendrie J NRC COMMISSION (OCM) |
| Shared Package | |
| ML19249D571 | List: |
| References | |
| NUDOCS 7909240854 | |
| Download: ML19249D572 (2) | |
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WASHINGTON UNIVERSITY SCHOOL OF MEDICINE ese souTM Eucun avtMut S T. L o UIS. MISSOURI 63110 Y
8 DEPA RTMENT o r eso LOGICAL CHEMISTRY g
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Dr. Joseph M. Hendrio., Chairman j
U.S. Nuclear Regulatory Commission
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Washington, D.C.
20555 y.";A Q.<
Dear Dr. Hendrie:
D Through discussions with a friend, Mrs. Kay Drey, I have learned of the proposed " pipe cleaning" or decontamination of the primary coolant system at the Dresden Nuclear power plant.
'.dm many others fn the U.S., I have become interested in both the positive and negative factors of nue. ear energy.
I'm writing to you with the hope that you will provide me with environmental impact information about this cleanup operation.
First of all, ignoring the f act that I am uninformed about the pipe system, it would saem of questionable valut. to clean up a clogged plumbing system. Frequently the chemicals used in cleaning can them-selves cause damage. Those in charge presu= ably have data indicating that the coolant piping system is itself in good shape and will not suffer any ill effects,from a chemical cleaning with a chelating agent.
However, the more serious problem seems to be related to the disposal of the radioactive crud bound to the proprietary Dow chelating agent, the cleaning fluid.
Is it true that 3000 curies are expected to be washed free from the pipes with the chelating agents? How was this estimate obtained? According to Mrs. Drey, this vaste is to be dis-pqsed of by solidifying the aqueous chelated waste in 1200 x 55 gallen drums and then moving to a disposal site. My rough calculations indi-4 cate that the solidified waste will have a specific activity of 1.2x10 nanocuries/ gram.
Is this about the nor=al specific activity of buried radioactive waste?
Since the solidification process apparently involves entrapment in a vinyl ester matrix, what is the rate of leaking from such a = atrix (assuming that the container is absent!)?
Is the container constructed of metal?
Is the temperature of the container and polymer measurably affected by the radioactivity?
If the containee is metal, is the
( } corrosion rate notably affected by any heating effects due to radia-
' tion? or the chelating agents? or unpolymerized solidifying monomer?
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I realize that data is available on many of these more obvious problems and 1;would'like to help in disseminating this information to worried citizens.
Is it possible to be put on some sort of mailing list 9'n 324
' 9 0 9 2n dCp
3 J
Dr.. Joseph M. Hendrie - Page 2.
normally used to send out information about hearings and/or reports on potentially hazardous procedures associated with nuclear energy?
I will be grateful for any data you have on these problems.
Sincerely yours,
. Leonard J. Banaszak Professor of Biological Chemistry IJB:ss cc:
Representative Clay Senator Eagleton Senator Danforth 4
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