ML20126H646
| ML20126H646 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 05/10/1985 |
| From: | Maine Yankee |
| To: | |
| Shared Package | |
| ML20126H622 | List: |
| References | |
| 1-18-4, NUDOCS 8506100377 | |
| Download: ML20126H646 (15) | |
Text
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' COMPLETED: Dept. Head h 3g Proc. No.1-18-4 Plt. Mgr. f ud . Class. A DATE/ TIME PORC g a .- - Rev. No. 12 74 Mgr. of Ops /.EF Issue Date 5-10-84 U' P.S.S.' REVIEW Review Date 5/86 l-18-4 SPENT RESIN STORAGE AND PROCESSING W NtFonssA m N T s...
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This procedure provides the operator with specific steps required to store,'
condition.and solidify Spent Resins.
R 4.0 Spent Resin Conditioning in the Waste Resin Storage Tank TK 85 & Resin itidup Tk-lO9 4.1 Spent Resin Conditioning in TK-85 and Water Transfer to TK-109 4.2 Resin & Water Transfer from TK-85 to TK-109 4.3 Dewatering Resin Holdup TK-109 4.4 Resin Transfer from TK-85 to Liner 4.5 Transfer' of Resin from TK-109 to Liner 6- 1.0 OBJECTIVE
-To store, condition and prepare Spent Resins for processing.
i To pr'ocess Spent Resins to achieve a free standing solid in a suitable shipping p container.
2.0 PRECAUTIONS j 2.1 Always observe the radiation reading in mr/hr on the panel prior to entrance 1 to the Waste Holoup Tank Cubicle. Personnel should have a radiation survey meter when entering this cubicle.
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l 2.2 Be aware of high radiation levels in waste resin storage area, RCA, and waste
". holdup tank during these opirations.
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( 2.3 Ensure there is room in the ADT's to receive water when dewatering TK-lO9 to the ADT's.
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2.4 .When operating the dewatering pump, ensure oiler in air supply is full.
- 3.0 INITIAL CONDITIONS INITIALS 3.1 Ensure that the RCA Storage Building Ventilation System is in
. operation.
3.2 ' Proper plastic, paper or canvas has been applied to the RCA Building floor or Decon Pad to assure that the truck trailer or container is not contaminated.
3.3 A Radiation Work Permit has oeen obtaineo for all phases of solidification / Resin Transfer.
3.4. Spent Resin has been sluiced to the Waste Resin Storage Tank for storage and decay.
- 3.5' Fill out batch report attached and return to HP. Ensure PEQAG nas r checked liner for. free standing water prior to covering up. liner.
h- - 3.6. Ensure all outside doors to the RCA are closed when_ waste is being processed.
3.7 Have the Chemistry Dept. sample the waste holdup tank bottoms.
NOTE: Chemistry must have activity levels for cask shipping '
' records.
' . 3.8 . To prevent rupturing FL-90 when starting the dewatering pump, (P-145) ensure it has a discharge path, and air regulator is set at 15 psi i ~or less.
}' -3.9 Obtain or manufacture a rig for determining water content in cask via 1 cewatering pump (P-123) discharge.
4 3.10 Vendors procedure available for use.
J 3.11' Flexible hose is connected to WSS-91 and WSS-72 for resin fill and 1
( dewatering.
- 1 NOTE: Douole hose clamps snall be used to connect flexible
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- Proc. No.1-18-4 ' '
Rev. No. 12 Page 3 of 15 INITIALS
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3.12 Assure that the Waste Solidification System Flush Tank, TK-80, level
.within the operating bano as inoicated by the Level Gage Glass.
Keep water level in the RED ZOE.
3.13 Assure that the Waste Solidification System Flush Tank, TK-80 is
. pressurized to 85-100 psig and is open to the Service Air System.
3.13.1 I'f makeup to TK-80 is necessary, open PW-17 to admit primary water and maintain TK-80 pressure at 100 psig by throttling the muffled vent, SA-206. .
3.14 Assure that the main Flush Water Isolation Valve, WSS-65 is open.
NOTE: This valve should De left open.
3.15 Assure that the main Instrument Air Isolation Valve, IA-201, is open.
-NOTE: This valve is located behind the RCA Storage Building Condensate Return Unit.
- R 3'.16 Ensure P-108 suction aligned to TK-85.
NOTE: RS-14 is located in a High Radiation, Airborne Acitivity Area and does not have a reach rod. This valve is visible from above and should be checked in this manner.
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Proc. No.1-18-4 Rev. No. 12
. Page 4 of 15
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4.0 . SPENT RESIN CONDITIONING IN THE WASTE RESIN STORAGE TANK / RESIN HOLOUP TANK DISCUSSION This section gives two methods of transferring and processing resin. The old method of transfer to the radwaste holdup tank (TK-85) allows no means of returning the cecant back to the ADT's. The new method allows transfer of water and resin to the resin holdup tank (TK-109) from TX-85. The resin may then be transferred to TK-95 for. solidification or directly to a liner. The water may-be pumped to the ADT's or TK-85.
The maximum capacity of TK-85 is 100 ft3 of resin or three charges. This assures that the resin level is below the 3 inch sluice line. Normally, processing of resin should be considered when two charges have been stored in
- TK-85 for at least 90 days and longer if possible.
The maximum capacity of TK-109 is 704 ft3 of resin or 22 charges. Charts at rear of this procedure and at TK-109 correlate tank level with number of charges and gallons of water to tank level.
NOTE: Prior to transferring spent resin to the Spent Resin Storage Tank'(TK-85), the water level in the Spent Resin Storage Tank
~
must be reduced to achieve a pumpable slurry. This will be accomplished by recircing the spent resin bed for 30 minutes with C"- the SCREEN PLUG CLOSED, After this operation, the excess water-will be pumped to TK-109. After this operation has been accomplished, the spent resin is ready for transfer to the Waste Solidification System.
INITIALS 4.1 Spent Resin 00nditioning in TK-85 and Water Transfer to TK-109. .
4.1.1 Assure that the Resin Storage. Tank SCREEN PLUG IS CLOSED.
4.1.2 Place the MODE SELECTOR SWITCH in 'RESINS.
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- Proc..No. 1-18-4 Rev. No. 12
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INITIALS 4.1.3 - Place the PHASE SELECTOR on FILL HOPPER.
4.1.4 Close the RESIN INLET VALVE, WSS-A-28.
4.1.5 .Open the Resir! Transfer pump Recirc. Valve, RS-15.
R 4.1.6 Cneck shut RS-27 Hope Connection. ,
R 4.1.7_ Close WSS-89 Resin Transfer to TK 95 manual stop and WSS-92 P-144 Resin Transfer to TK 85/TK 95.
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NOTE: With WSS-89 closed, we will be filling TK-109, not the hopper.
-4.1.8 Hook up the air hose, to the air supply connection to TK-85.
Fully open the air valve at the tank and then crack open 1/2 turn the air supply root valve to allow air to be injected into the tank for agitation of resin.
CAUTION: 'The root valve at the air supply line should just be cracked to prevent blowing resin out of the tank.
CAUTION: If level in TK-85 reaches 100%, secure air to TK-85.
Restore minimal air flow after TK-85 level has decreased and stabilized.-
4.1.9 Start the Resin Transfer Pump, P-108.
4.1.10 ' Run in tnis mode for 30 minutes, or until radiation levels stacilize.
. NOTE: The resin bed above the screen will purify the recirc.
stream and capture any resin beads below tne screen.
4.1.11 Open WSS-90, TK-109 inlet. ,
b 4.1.12 Transfer excess water to TK-109 by opening tne RESINS INLET VALVE, WSS-A-28 and closing recirc. valve RS-15.
4.1.13 Ccntinue decant transfer until Waste Resin Storage Tank level decreases to 35%.
CAUTION: At levels less than 35%, resin clogging of P-108 ,
may occur.
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Proc. No. 1-18-4, Rev. No. 12 Page 6 of 15 1
- INITIALS 4.1.14 Stop resin transfer pump P-108.
R 4.1.15 Close WSS-A-28 TK-85 Resin Inlet.
4.1.16 .Open recire. valve RS-15.
4.1.17 Close WSS-90 TK 109 Inlet. .
R 4.1.18 Open WSS-89 Resin Transfert at TK 95 manual stop.
4.1.19 Place the Phase Selector on Recirc.
4.1.20 Refer to Section 5.3 to return oecant to ADT's.
AUX. OPERATOR DATE/ TIME 4.2 Resin and Water Transfer from TK-85 to TK-lO9 -
4.2.1 Check open the resin transfer pump (P-108) suction valve, RS-14.
4.2.2 Open recirc. valve RS-15. -
4.2.3 ' Hook up the air hose to the air supply connection to TK-85.
Fully open.the air. valve at the tank and then' crack open .
1/2 turn the air supply root valve to allow air to be injected for agitation.
CAUTION: The root valve should just= be_ cracked to prevent blowing resin out of the tank.
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CAUTION: If TK-85 level reaches 100%, secure air to TK-85.J Restore minimal air flow after TK-85 level has l decreased and stabilized.
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4.2.4 Start the resin transfer ptnp, P-108.
[ 4.2.5 After 15 minute recirc. stop P-108 and close RS-15.
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- 4. 2.6 _ Open the spent resin storage tank screen plug.
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R -- 4.2.7 Close WSS-69 Resin Transfer to TK 95 man stop ar.d close WSS-92 '
P-144 Resin Transfer to TK 85/TK 95.
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e I4. 2. 8 ' Place the MODE SELECTOR ON RESINS.
4.2.9 = Place tne SELECTOR ON FILL HOPPER.
i NOTE: With WSS-89 closed we will be~ filling TK-109, not the hopper.
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- 4.2.'10 J Open WSS-90, inlet .to TK-109.
- 4.2.11 l Open WSS-A-28.
4.2.12 Start transfer of spent -resin to TK-109 by starting the waste
. resin transfer. pump, P-108.
' 4.2.13 Continue resin transfer until the hign level alarm is reached in TK-109.
4.2.14 Stop P-108.
4.'2.15 Dewater TK-109 'as 'per Step 6.3.
- NOTEi If all resin has been transferred to TK-109, do not
. El -
dewater as this water will act as shielding.
4.2.16 Transfer remaining resin and water to~ TK-109 by, starting- P-108.
4.2.17 If hign' level is not reached before all resin is transferred fill TX-109 witn primary water by' closing WSS-102 and WSS-98
.c and opening WSS-102 if shielding is needed. Reference TK-109, -
P Volume Curve attached.
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NOTE:- Do not use more water than needed for shielding.
Bi; NOTE: : There is no automatic protection against overfilling 0;
with water. . .
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p 4.2.18 Stop P-108 and close WSS-A-28 when transfer is complete. ,
v 4.2.19 'Close RS-15 and WSS-90. -
4 4.2.20 Place phase selector in recire.
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Page 8 of 15
- INITIALS
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R'4.3 Dewatering Resin Holdup Tank, TK-109 to ADT or WHT 4.3.1 Ensure there is room in ADT's-to accept decant.
--~. R .. 4.3.2- Close WSS-98 P-145 Bypass.
.R
~4.3.3' ~Open WSS-97 FL-89 Inlet. ,
R 4.3.4 Open WSS-99 P-145 Outlet.
R 4.3.5 Open WSS-100 FL-90 IQtlet. ,
-R 4.3.6 Open WSS-101 FL-90 Outlet.
R- 4'.3.7 To send decant to WHT open RS-20. RS-20 Open
- To send decant to ADT open RS-21. RS-21 Open
'4.3.8 Close vent WSS-103 (in pipe just above WSS-101).
R 4.3.9 Close WSS 102 nose c6nnection.
4.~3.10 - Using 15 psi or less start dewatering pump P-145.
CAUTION: Do not use greater than 15 psi or FL-90 could rupture - adjust as necessary after start.
CAUTION: When' operating P-145, ensure air line oiler is full.
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4.3.11 When dewatering 'is complete stop P-145.
4.3.12 Close WSS-97, 99,.100, and 101.
4.3.13 Close RS-21 and 20 as opened above.
AUX. OPERATOR 0 ATE / TIME
.4;4. RESIN TRANSFER FROM TK-85 TO LINER DISCUSSION
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During this evolution, the discharge of the dewatering pump is directed back J'-~ c to TK-85. A level increase in TK-85 should be noted soon after cask b S? dewatering is started. Resin transfer should be considered complete when f E- ~ radiation levels on the liner fill line drop significantly.,.
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l Proc. No.1-18-4 Rev. No. 12 Page 9 of 15 INITIALS 4.4.1- Perform the following valve line ups.
'4.4.1.1. TK-85 cubicle.
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NOTE: RS-14 is located in a High Radiation, Aircorne P '
Activity Area and does not have a reach rod. j This valve is visible from above and should be I checked in this manner.
l k:- a). .. RS-14', P-108 suction . Check open b) RS-15, TK-108 recirc Open c) TK-85, screen plug valve Open
- p. d)' TK-85 air sparger supply valve Open e) ' WSS-67 P-123 air supply
~
.Open f) WSS-68 P-123 air supply Open
. g) .WSS-34 P-123 suction Closed I
!. R 4.4.1.2 Waste Solidification Panel-(; a) WSS-A-28 Resin Inlet to TK 85. Closed l l-.
b) WSS-A-35 TK-85 suction of P 123. Closed l q
4.4.1.3 TK-109 Cubicle L a) - WSS-93, ik-109 recirc Closed t-b) WSS-94, P-144 discharge Closed c) WSS-91, liner fill stop Closed I d) WSS-92, P-108 discharge Open !
e) WSS-95, TK-109 H.C. Closed 4.4.2 Hookup flexible hose from WSS-91 to connection at Liner IAW ,
b Vendor instructions, r
4.4.3 Hook up dewatering hose IAW Vendor instructions.
4.4.4 Check Service Air supply to TK-85 sparger closed, then hook up air hose to service air supply valve.
l 4.4.5 Start P-108 to recirc TK-85 for at least 15 minutes.
4.4.6 Crack open the Service Air supply valve to agitate resin, open no more tnan 1/2 turn to prevent blowing resin out of tank.
CAUTION: If level in TK-85 reaches 100%, secure air to TK-85. Restore minimal air flew after TK-85 level ~
has decreased and stabilizeo.
NOTE: If P-108 should clog with resin, secure P-108, shut .
RS-14 connect hose from flush water upstream of RS-27, f ./. <
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and flusn system thru P-108 to liner by opening RS-27. ,
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INITIALS-4'.4.7 ' When recirc is complete, open WSS-91 and close RS-IS to transfer resin to liner.
CAUTION: Radiation levels _ at'the top of the cask may reach as hign as 25 rem /hr. Use a temporary mirror at the top of the cask to visually ~ determine level.
-4.4.8- Open liner dewatering hose isolation WSS-72.
4.4.9 Start the dewatering pump'(P-123) when liner level reaches 2.5" r' _ from fill heao. Adjust pump speed to maintain a slowly decreasing level. Ensure WSS-A-44 opens. Note level increase in TK-85.
NOTE: When operating P-123 ensure air line oiler is full.
4.4.10 When resin transfer is complete, perform the following:
4.4.10.1 -Stop P-108.
4.4.10.2 Shut WSS-91.
_4'.4.10.3 Shut the Service Air supply valve to TK-85.
-4.4.11 Cbntinue oewatering Liner IAW Vendor instructions.
NOTE: To measure the amount of water in cask, hook up a temporary leak rig to discharge of P-123 and run P-123 in accordance with vendors ~proceedure.
b 4.4.12 Stop dewatering pump when liner is dewatered and disconnect hose IAW Vendors instructions.
L 4.4.13 Drain hose into liner.
4.4.14 Place hose in yellow poly bag and return to its storage area.
j 4.4.15 Perform the following valve line ups: -
P' 4.4.15.1 TK-85 cubicle.
a) RS-15, TK-85 recirc Closed b) TK-85 screen plug valve Closed c) TK-85 air sparger supply valve Closed 4.4.15.2' Waste Solidification Panel.
a) WSS-A-28 Auto
[ b) WSS-A-35 Auto
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Rev. No. 12 Page 11 of 15 PCR No.84-520, 84-521-84-522 INITIALS 4.4.15.3 On wall near WSS-91.
-a) WSS-92 Clocec
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. 4. 4.- 16 Fill out attached data sheet and forvtard to Chemistry /HP.
AUX. OPERATOR DATE/TDE 4.5 Transfer of Resin from TK-109 to ' Liner CAUTION: Ensure there is enough room in TK-85 to receive decant from liner prior to commencing the following steps.
4.5.1 Hook flexible hose from WSS-91 to connection at liner.
^PCR #84-520 4.5.2 Install two stand' pipes and level electrodes - Hittman liner as
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per Westinghouse - H1Hnan Procedure STD P-03-010 Rev. 5, Section 5, equipment set up.
[ 4.5.3~ Connect air hose to WSS-102 for resin agitation.
PCR #84-521
.4.5.4 Open WSS-96 P-144 suction from TK-109 and check closed WSS-90
[ ;, and WSS-92.
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-4.5.5 Open WSS-94'P-144 discharge.
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- R 4.5.6 Open WSS-93 P-144 discharge' to TK 109.
R. 4.5.7 Close WSS-91 flexible hose connection.
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"i 4.5.8 . Start P-144 from solidification control panel and open WSS-102
.1 and air' supply to reirc. and agitate resin for 15 minutes.
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'4.5.9 When recirc. is conplete open WSS-91 and close WSS-93 to .
.j . transfer resin to liner, following Hittman Procedure STD-P-03-010
- 4. Rev. 5, Section 6.0, transfer and dewatering.
.f j- / CAUTION: Radiation levels at top of the cask may reach as high
.i as 25 rem /hr.' use a temporary mirror at the top of
[- the cask to visually determine level.
I ' 4.5.10 ' Place the control switch for WSS-A-35 in the closed position. j 5- ,
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Proc. No. 1-18-4 Rev. No. 12 Page 12 or 15
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INITIALS-
.. 4.5.11 0 pen liner dewatering hose isol. valve WSS-72.
4.5.12 Verify that the dewatering pump air supply isol. valves, WSS-67 and WSS-68 are open.
PCR #84-523 4.5.13 Start the dewatering pump (P-123) and follow Hittman Procedure STD-P-03-010 Rev. 5, Section 6.0, transfer and dewatering.
NOTE: When operating P-123 ensure air line oiler is full.
4.5.14 When resin transfer is complete perform the following:
4.5.14.1 Stop P-144.
4.5.14.2 Close WSS-96.
4.5.14.3 Connect primary water hose to WSS-95, then open WSS-95 ano start P-144.
4.5.14.4 After clear flush water issues from hose open WSS-93, h.) close WSS-91 and flush recirc. line for 1 minutes.
4.5.14.5 Stop P-144.
4.5.14.6 Close WSS-96.
4.5.14.7 Close WSS-95.
4.5.14.8 Close WSS-93.
4.5.14.9 Close WSS-94.
4.5.14.10 Shut WSS-102 and air supply to secure agitation.
PCR #84-524 4.5.15 Stop dewatering pump following Hittman Procedure.STD-P-03-010, Section 6, transfer and dewatering. -
NOTE: Well point will be left in the liner to be shipoed off site with the resin.
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NOTE: To measure the amcunt of water in cask, hook up temporary rig to discharge of P-123 and run P-123 in 7 accordance with vendors procedure. .
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4.5.16 Drain hoses into liner.
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1 4.5.17 Place yellow poly bag around hose and return to its storage area.
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Page 13 of.15 :
g-: INITIALS
- 4.5.18 - - Ensure resin liner is dewatered prior to capping.
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p gi : 4.5.19 . Fill out attached data sheet and forward to Chem /lf. -
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AUX. CPERATOR f
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u 1-18-4 ' WASTE SOLIDIFICATION DATA SHEET ,
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(HP) CONTAIER SERIAL #
.(OPS) WASTE TYPE: EV-1, EV-2, Resin Decant, Resin, Primary Water, Other (Circle One) i: -. .
.(OPS) WASTE TRANSFER CO W LETION TIME
.(OPS) . TOTAL- WASTE TRANSFERRED-
, . - . . 1.. _ .(W) TOTAL CEMENT ADDED S (HP) CONTAIER SURFACE DOSE RATE Rao Waste Co-ordinator Signature J 1
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. Operator Signature NOTE: Route this Batch Report to the Hazardous Waste Coordinator 9
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