ML20028A388

Forwards Request for Addl Info Re ATC-8019-1, Atcor Liquid Vol Reduction Process. Info Due by 830103

ML20028A388
Person / Time
Issue date:	11/08/1982
From:	Thomas C Office of Nuclear Reactor Regulation
To:	Brownstein M ATCOR ENGINEERED SYSTEMS, INC.
References
NUDOCS 8211190363
Download: ML20028A388 (5)

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DISTRIBUTION:

gf.entral Files NRC PDR NSIC NTIS PRC NOV 8 1982 C. Thomas J. Berggren P. Andergon

.S$fd B/F Mr. Martin Brownstein Director of Engineering ATCOR Engineered Systems, Inc.

270 Farmington Avenue Suite 203 Farmington, Connecticut 06032

SUBJECT:

REQUEST NUMBER 1 FOR ADDITIONAL INFORMATION ON ATC-8019-1 He are currently reviewing Atcor Engineered Systems, Inc., Licensing Topical Report ATC-8019-1 entitled "Atcor Liquid Volume Reduction Process" dated May 1982.

The initial review reveals the need for the additional information indicated in the enclosure.

This information is necessary to complete the review - its expeditious submittal will, therefore, be to Atcor's advantage. Please advise us as l

soon as possible of your planned submittal date to pemit us, in turn, to l

develop a review schedule. To provide for a timely continuation of the review, we suggest the response by January 3,1983.

The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, 9aIGInaL sIstui;D BY I

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l Cecil 0. Thomas, Acting Chief

, b' l Standardization & Special Projects Branch

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Division of Licensing

Enclosure:

DESIGNATED ORIGINAIl As stated

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METB QUEST 10tl5 ATCOR TOPICAL REPORT 8019-1 1.

Provide the source and date for the dollar values presented in Tables 3-1 through 3-4.

l 2.

In Section 2.2.2, it is stated that " complete dehydration appreciably improves the results of the encapsulation operation." That this is not always the case is indicated on page A.2-3 (proprietary) where it is noted that the embedding of resins does not require the drying of resins. On page 3.7, (non-proprietary) it is stated, "...ATCOR recommends that the resin and other particulate wastes be treated simply by dewatering. Re-moval of the free water...to reduce the water content to 50% for the resins (i.e., less than 1% free water)." The statement in Section 2.2.2 should be modified appropriately.

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3.

The entire document should be reviewed by a technical editor to pick up context errors, typographical errors, and the use of British or European phrasings and spelling which can be confusing or misleading to the.readei.

Several such problems exist throughout the document, but a revi'ew of page 1.1 is representative:

- Paragraph 1, line 6:

"The reduction of volume of the solidified wastes by factors ranging from 7:1 to 10:1 depending on the waste streams 1

processed."

- Paragraph 2, line 10:

"The combination of two compatible testing has resulted in the system described in this topical report."

(Same para-graph, continuation on page 1.2):

"The evaporated water vapor is condensed and monitored provide iondication (sic) of system operation."

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. 4.

In portions of the topical report, the tem " encapsulation" is used to describe the mixing of waste with the solidification agent, while other portions of the report use "embedment." Use one tem or the other; should be consistent throughout for clarity.

5.

On page 2-3, the dried product is described as a " fine powder" while on page 2-4, it is described as a " granular" powder.

6.

In.certain places in the text (pages 2-2 and 2-9, for example), reference is made to discharging system gaseous wastes to the station's "off gas system."

In U.S. teminology, a station off-gas system is usually the collection and processing system for primary coolant system off gases "5nd would not be utilized for a relatively low-level input such as would evolve from a radwaste volume reduction and solidification system. Such a system would most likely be vented to the station's ventilation exhaust system.

7.

On page 3.7, mention is made of the " proven" ATCOR dewatering fill head for the reduction of water content in resins. Please proiide more infomation on this device.

8.

Section 3.2.2, page 3:6, discussing mixing of dried resin and asphalt, also notes that expansion of resins with other binders, such as Dow polymer, will result in disintegration of the solid. Does this also apply to cement binders?

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9.

Section 4.8.4, page 4.22, describing instrumentation for maintaining a given level in the condensate tank, seems to say that level control will be proiided by controlling the speed of the condensate pump. Does the fixed level detector, described in Section 4.8.2, also proiide input to the pump speed controller? Speed control of the pump, as the only means of level control, without some mechanism of feedback on level, does not appear to be an adequate means of control.

10. Page 6-4, Section 6.3.3.

The quoted values for release of radiciodine for each site are correct for release from the entire plant.

Your submittal, however, does not address the quantity or fraction of radiciodine, which could potentially be released from a volume control and solidification wa-system, such as you propose. Provide a discussion of the fraction of the releases from a plant which would be attributed to system operation.

11. The data presented in ATC-8019-1 N/P on the embedment of the product of the ATCOR volume reduction process is almost entirely based on the use of l

"aluminous" cement. On page A.2-1 of Appendix 2, eight categories of Portland cements are given, none of which appear to be of the "aluminous" type. Please furnish information on the types of cement generally available in the U.S. which can be considered "aluminous," their costs relative to l

Portland. cements, and a general statement as to U.S. sources or availability.

12.

In several places in the text, it is proposed that dried wastes be embed-ded and solidified in cement, polymer, or bitumen (asphalt).

Appendix 3, l

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which provides the data on the experimental basis for the finished product of the ATCOR volume reduction process is limited to data on embedment and solidification in cement.

If the topical report is to be considered generic for cement, polymer, and bitumen (asphalt), additional data should be provided concerning embedment and solidification of the volume reduc-tion system product in polymer and bitumen (asphalt).

13. On page A.3-13 of Appendix 3, it is stated:

"...the leaching of insoluble radioisotopes is excessively smail..."

What does " excessively small" mean with respect to leaching characteristics?

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14. On page A.3-17 of Appendix 3, it is stated: "The gaseous vents are heated

• 'O~p to a set temperature by an electric heater E3 in order to descrease their moisture content." Such an action, while decreasing relative humidity through heating, would neither increase nor decrease moisture content.

15. On pages A.3-19 and -20 of Appendix 3, the "plus or minus symbol" (+) is used inappropriately in several locations. For example, the power absorbed by evaporator S1 isshown to be + 1 kW. Such potentially confusing entries should be corrected.

16. What is the source and year for the dollar values given in Table 3-1, beginning on page 3.9, and Table 3-2, beginning on page 3.14?

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