ML20133K339
| ML20133K339 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 10/06/1960 |
| From: | Swallow L MALLINCKRODT, INC. |
| To: | Delaney J US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20133G976 | List:
|
| References | |
| FOIA-96-343 NUDOCS 9701210193 | |
| Download: ML20133K339 (4) | |
Text
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MALUNCKRODT CHEMICAL WORKS #4--b
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j RNE CHEMICALS FOR MEDICINAL, PHOTOGRAPHIC
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ANALYTIC AL AND INDUSTRIAL PURPOSES
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a"t:fA ST. LOUIS.7. M O.
j october 6, 1960
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Mr. J. C. Delaney b,
8f Licensin6 nrench
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Division of Licensing f
n U. S. Atomic Energy C-l hashington 25, D. C.
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SUBJECT:
StM 33 Extension:
contaminated Trash Incinerator Gentimmen i.e era currently instelling a gas fired incinerator for the purpose of oonoontrating uranium containing trash prior to i
j obemioal recovery.
The material to be incinerated will eensist of filters, rags, paper, etc. and floor mop waters.
4 In the ease g(filters, rags, etc., no limitation will be l
impened on U m enviahment.
In the osse of mop ter, the -
enrichment will be limited 'to a maximan of 55 u l
Deseristice of Inoinerator An outline deswing of the incinerator is, enclosed.
Basioally, the insinerator consists of an 18" diameter by 12 3/2" high pot on a 3" thiok fire betok annulas.
A heavy gage metal e above the pot completely enoloses all material l
La the pet and diavota combustion 6ases to the fluo.
The i
flee is a 6 ineh diameter galvanised duet.
As een be seen the foot combustion produote eennot pass from the drawing,ial in the pot and in fast no air ce gas the mater aan f ttuPough the pot with the ozooption of the products of combustion of the insinstated material.
The off gas from the Laeinerated matorist is ocabined with the fuel i
estestien produets at the top of the bonnet.
Eseept fee 3
the Des 1 hammer, the botten of the fire briek anam1me is semple y spee.
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l In all oases the uranium content of the matcrisi in the pot will not esosed the limited safe batch for the enriotument en.,etwinne%'u.inTableX112ofE1019,FifthRevisies.
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Pr, J. C. Lolnnoy Octeter 6,1%0 Poco Two j
liidden incniua conconbrations 17. th: incinorc'.cr :.ro impcasiblo nince tbs pot foins the only bottom of tho in0in-l oretor.
An accumulction in tba riuo is urlikoly cince cr.y uranium bonring pcrticlan entoring the fluo wou.'.d hava to l
be ao light that they weald ccrry cr. cut the fitw.
Thim.
I can be vorified by occporing the inego e en of the bonnat (low gas velocity) to the restricted aren of the fluo (high gas volooity) and recalling tbat the only gasen passing through tho trash are cotubustion prcducts of tho trash itself.
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Batch Properation Filters:
The filtera will be pra-cicanod by vacuuming 4
and tapping to remove loose material.
As a result tbo maximum uranium content in tho low enrichment filtors will i
not exceed two or threo pounds.
For high onrichmont filtors the maximum content will be cpproximately 100 grams.
a This difference is due to the size difference of low and high enrichment filters.
This weight will be knoun since all filters sro taro weighed prior to use and weighed again attor pre-cleaning with the weight difference attributed )
to the urenium matorial contained.
Tho low onrichment filters /
will be comprossed to fit in the incinerator pot.
All filters will be packaged in a polyethylene bag.
Rags, Paper., Etc.*
This matorial is not used directly in i
the plant procese as in the case of filters.
Consequently, l
the uranium content is less than 1% by weight.
It would therefore take a minimum of 74. pounds of this material to i
accumulate 350 grams of uranium.
The volume of the pot is not large enough to socomodate this quantity of trash.
i Trash that had been used in a manner which would result in a high uranium content will be treated tbs same as the filtera.
Mop Water:
All mop unter is analyzed for uranium content.
The mop water will have been concentrated by boiling down elsewhere in ths' plant prior to introduction into the insinopator or concentrated in the incineratoe itself depos!=
in6 on which method is found from experiones to be neat ofripient,-
Health Physios The filter preparation will be done in a ventilated hood i
elsewbore in tbs plant.
All filters will be wrapped la polyethylene at $he time of preparation.
The bag will'not
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bo vencved when hsy are pla :od in f.u ice.,'ra hor olir.l.unin; o potontici duct problot.t The eth'ar trrth./111 net nom 3117 havo o high uranium centsnt ett a Guat prob 1:n is not expected.
1 The entire oporction of tha incinraer in:1u.!ir,3 thu fluo uill be surveyed by our Hocith Phyniss Dspart:3nt to insure operation in necordeneo with AEC hoolth requirements.
Appropriato correctivo notion will bo taken to correct cny deficiencies found by this survey.
'Ohc incincroter is i
beig installed in en croc inc1: Mod within oar esisti:ig gamma alarm sys tom.
Plenso lot us kncu if you requiro cdditienal information in order to approvs this raquest for oxtension cf licenso a
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SHM 33.
l Roopactfully yours, MALLINCKRODT CHEMICAL 'r!OTES L. J. Suellow Nuclear Division Hematite Plant i
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