ML19282B801

Requests Addl Info Re Typical Liquid Radwaste Feed Characteristics to Solidification Sys,Cement Mixing Ratios, Const Matls & Design Criteria,To Complete Review of Topical Rept ATC-132-A,Radioactive Waste Solidification Sys

ML19282B801
Person / Time
Issue date:	02/27/1979
From:	Baer R Office of Nuclear Reactor Regulation
To:	Brownstein M ATCOR ENGINEERED SYSTEMS, INC.
References
NUDOCS 7903160204
Download: ML19282B801 (6)

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UNITED STATES g., b f f!,

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.. 't NUCLEAR REGULATORY COMMisslON I

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Mr. Martin Brownstein Director of Engineering ATCOR Park Mall Peekskill, New York 10566

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION ON TOPICAL REPORT ATCOR NO.

ATC-132-A

. As a result of our review of the ATCOR Topical Report No. ATC-132-A, " Radio-active Waste Solidification System," and the response dated Novem::er 29, 1979, to our ini.tial questions, we find we need additional information concerning typical liquid,'radwaste feed characteristics to the ATCOR solidi-fication system, the basis for the waste and cement mixing ra-ios, equip-ment construction materials, and conformance with the design criteria of Regulatory Guide 1.143 (formerly BTP, ETSB 11-1).

Our request for additional information is enclosed.

Please advise me of your schedule for responding to this request for additional information within two weeks of receipt of this letter so that we can schedule our review.

Sincerely,

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,cm ovez).:

Robert L. Bser, Chief Light Water Reactors Branch No. 2 Division of Project Management

Enclosure:

Request for Additional Infor.na tion

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REC'.EST :CR ADDITIC"AL II;FCR:'.ATIO.

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In Section 3.3, you show typical licuia radaa te feed charac:aris:i:3

.hich are normally sciidified. tith the Airo', system. Referer.:e cr

rocids the source of this inf

rma: ion.

2.

In Section 3.3, Tabies 2 through 5 lisu the wasta/ cement mix:ure ratios and associated,+.olerances for the wastes to be solidified with rasonry cement and Portland Tyre i cement.

Provide the basis for these mixture ratios. Describe the importance of maintaining waste flows and cement flows within the coerating tolerances described (for example, will a cement flo'.. of 0.5 cfm + 115, or 0.29 cf, rasult in a product ahich is not free standing and homogeneous?).

State what fraction of waste proc essed during a year will have operating tolerances in excess of thcse gihen in the tables and not result in a free standing homogeneous product.

3.

In Section 3.4, _ycu reference Brookhaven National Labcratory (5NL) study results on leachability of waste solidified with portland cement. State if ATCCR concurs with Bi:L test results and provide the results of ycur o'.I:n investigation of leachability of waste solidified with casonry cement.

In Section 2.1, you cescribe the functicnal moda selector for the

.aste ;rs:ess. ' ith the selector switch in au:omati:

de, ::1:s if an c;erator can manually )verrice any phase of cperation cr cr: cess.

5.

In Section 2.1, you describe the 'aste tank flushing coeraticn.

Sta:e the cmount of flushing water required to adequately flush the sn ire ;r.:srice cf the...:s;e :ani.

5.

In Section 2.4, you descrice the tans dewatering fil:srs.

Das:r'ce the fil:ers in detail (ccmplete.;ith the filter type and rating in micr0ns) and the filtbr back flush c eration.

7.

In Section 2.4, you describe the removal of excess water fror tne resin slurry in the waste tank.

State if. the pressure gauge ir, the puro discharge line which indicates a loss of the oumo suction is required for the proper a,justmen; of water level in the.[aste tank and if it is within the scope of ATCOR supply. State also if a cressure switch in the pump suction line, as shown in your P&ID, can perform the same function as the pressure gauge.

S.

In Section 2.4, you describe heating of the waste tank to prevent crystallization of the evaoorator concentrates.

Provide the bour.dary conditions for process temperature in the waste tank and state re-medial actions provided or required if the process terperature lies Outside the boundary conditions.

9.

InSection2.4,youdescribethathighandlowlehelalarmc:9di:i:ns ara dete::2d in the..aste tank by fixed level pr:bes.

5:a:e s.r3:'11 actions crovided or required if such conditions are detectec.

10.

InSsction2.5,ycudescribet'.;cfixedlehelconductanceprc:es.

Describe in detail the conductance orobe furnished, including its rscuired lencth.

11.

I; 5e::ica 2.7, ycu ces: ribe radiation ::ni:cring.

escribe ::e r:diati:nleheice:et:rsindetail,cacciatewith:jpe,rar;s, boundary conditions (alarm se:pcint), and scnsitivity.

12.

In Section 2.10, you describe crane system interlocks.

7:2:s if a speedcontrolisprohidedwiththecranecontrolsystem.

13.

In Section 4.0, you provide the equipmen: descripticn.

Stata ths type of stainless stael (316 or 30?) used as constructicn ma:eriais for a'll surf aces wetted by waste or solidification process fluics (equipment,halhes, piping,decontaminationbooth,etc).

14.

InSection4.0,youprohidetheintegratedradiationdoserates cher 40 years for various sections of ATCCR equipment.

Prohide:he source of this inrormation.

15. Provide the size of canholes in the waste tank and cement bin.

16.

In Secticn 4.-3, you attached a case history on the vibrating y;e

'le believe this marketing tyce cass hi t:ry scrse dry cement feedar.

sh:uld not be incorporated into the report.

Rather, technical

i'.f cr.atiCn describinC_ ecuiprent desiC.U ar.d O.srf:rmance sh Jld e iA ir:ted and includ2d -in the tex cesCribing :ne Cem3n! feeder.

17.

irur res:cnse 0 Ques:icn 2 is iridecuate.

Pr vide arc:ess ca: ability

f AT:CR rad'.:aste solidificatien system (RSS) in terms of '..aste halurecr0cessedceryearutilizing55gallendrunandlargarvolume t.iste liners.

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2.1;ula: Cry 3 cide 1.143, ferrerly.';RC Erancn Technical Fositica ET55 11-1, 2.ev. 1.

State the applicable ecuipr.ent ccces for ea:h c: accen: furnished'by nTCOR :o shoe. the s:ecific conferr.ance.

19.

In your response to Questien 10, you showed the typical flush '..ater siphon system.

State the fabrication raterial used for the flexible hcse and any other flexible connecticns used in the RSS.

20.

In your response to Cuestion 7, you referenced the pump and feeder calibration procedures of Section 9.0, page: 35 through 38, and 50 to 53, which are not included in your Topical Report ATC-132A submittal. Provide these referenced pages for the pump and feeder calibratien pr_ccedures.

21.

In ycur response to Question 17, ycu state only that the filter for venting the displaced air during the waste container filling pr:-

vides filtration equal to the cement bin ventilation fi. iter.

33cribe the filter cesign and filter h2ntila:icn syster in rs

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