ML20083F372
| ML20083F372 | |
| Person / Time | |
|---|---|
| Site: | West Valley Demonstration Project |
| Issue date: | 07/30/1991 |
| From: | WEST VALLEY NUCLEAR SERVICES CO., INC. |
| To: | |
| Shared Package | |
| ML20079E011 | List: |
| References | |
| REF-PROJ-M-32 WVNS-TSR-025, WVNS-TSR-025-R00, WVNS-TSR-25, WVNS-TSR-25-R, NUDOCS 9110040225 | |
| Download: ML20083F372 (10) | |
Text
, _ - ._ . _ _ _ _ . - __ ___
4 MVNS-TSR-02S TEST
SUMMARY
REPORT Rev. O TEST / TEST SERIES Waste Form Oualification for Cement Solidi"ication of Sludae Was) Liouids DESCRIPT10ii Develooment of the Nominal Recioe for Cement Solidification of
$1udae Wash Liouids TEST REQUEST NO. ,_WV_N'-T.80-025
_ TEST PLAN NO. WVNS-TPL-70-011 ,
i TEST COMMENCEMENT DATE 5/1/91 TEST COMPLETION DATE 5/17/91 '
En ng Re h e M l.0 OBSERVATIONS / COMMENTS:
The purpose of this test procedure was to determine the nominal recipe for cement solidification of sludge wash liquids using the existing recipe for supernatant solidification as a first approximation. This test procedure verified that the existing supernatant recipe will be the nominal recipe used in future testing with the exception that the waste.
liquid will be 29 to 33% solids instead of 37 to 41% used for -
supernatant.
2.0 REFEREN(U.L-
- 1) Lettur No. EK:91:0047, " Preliminary Flowsheet: Sludge Wash with Existing 80-2 Heel", dated March 7, 1991.
- 2) COE/NE/44139-49 Topical Report on Development of the Recipe for Solidification of Decontaminated Supernatant, McVay, et. al.
- 3) USNRC Branch Technical Position on Waste Form, Rev.1, dated January 1991.
- 4) letter No. FH:91:0089, " Test Results on Nominal Recipe Qualification",
dated June 21, 1991.
3.0 OBJECTIVES MET:
3.1 Determine the acceptable range of percent solid:: (by weight) in the waste liquid.
STATUS: Complete OBSERVATION: Increasing the percent solids in the waste liquid above the " nominal" range lowers the compressive strength of the waste form.
DATA: Refer to Table 1 SRC4166:3RM l 1
l 9110040225 911001 PDR 1 - - - _ , - . . . . . . , . . _ -
4 UVHS-TSR-025 Rev. 0 3.2 Determine the acceptable range of calcium nitrate recipe enhancer to be blended with Portland Type I cement.
STATUS: Complate OBSERVATION: The waste form produced with no calcium nitrate in the cement blend exhibited lower compressive strength as well as slow gel times. Large amounts of calcium nitrate in the cement blend also resulted in lower compressive strength.
DATA: Rofer to Table 2 3.3 Determine the acceptable range of water-to-cement ratio.
STATUS: Complete OBSERVATION: The waste form exhibits lower compressive strength at high water-to-cement ratios.
DATA: Refer to Table 3 '
3.4 Determine the acceptable range of antifoam recipe enhancer to be added to the waste.
STATUS: Complete OBSERVATION: .None -
DATA: Refer to Table 4 3.5 Determine the acceptable range of sodium silicate recipe enhancer to be added to the waste / cement mixture.
STATUS: Complete OBSERVATION: The waste form _ produced with no sodium silicate exhibited a slow gel time, and bleed water.
DATA: Refer to Table 5 3.6 Determine the maximum practical compressive strength of the waste L ' form.
! STATUS:-- Complete l' OBSERVATION: The average compressive strength exhibited by the waste form at the " nominal" recipe was '403 psi, with a 2 sigma (90% confidence band) of 316 psi.
DATA: Refer to Table 6 SRC4166:3RM L
- - , ... - - _ . - - - - ~ -, . ~ -- -, - - - ~ ~
6VNS-TSR 025
- Rev. 0 3.7 Evaluate the effects of the recipe parameters on " gel ti:ne" and free liquid in the waste mixture.
STATUS: Complete OBSERVATION: See section 3.2 and 3.5 abbve.
DATA: Refer to Table 7 4.0 @KLVSIONS:
4.1 The nominal recipe for supernatant processing will be used for sludge wash waste form qualification testing. This .'ecipe is shown in table 7.
t:
4.2 There is a practical upper limit to the water-to-cement ratio, as well as to the percent solids in the waste stream and calcium nitrate cement blend.
These are three variations of the same effect: cement must be hydrated by water, and any parameter which changes the amount of ,
u ter (solids in the waste liquid) or cement (calcium nitrate in the blend) will affect the hydration reaction.
5.0 ACCEPTABILITY OF RESULTS:
5.1 The results of this test are acceptable. It is felt that a reasonable number of test specimens were prepared and that the results clearly demonstrate where an effect is encountereo.
5.2 The results of tests where no effect is seen are sufficiently close in order of magnitude to establish that no concern is justified.
6.0 ACTIONS OUTSTANQ1HQ:
6.1 The exact limits for recipe parameters, as well as the possible interaction of all variables will be evaluated during multi-variant teIting as described in WVNS-TP 028.
6.2 Characterization of the solids in the waste liquid, discussed in WVNS-TRQ 025, was not performed, but the effect of sulfates, nitrates, nitrites, aluminum, ect., will be evaluated during WVNS-TP-028/028A.
APPROVAL (S) M ff [ # ADDITIONAL REVIEWERS: h NO ,
(Test Requester)
[IJ.won !r V r b1 C. Cwynar y L % 'l .A lmn 1.1 )i -
J: . Mahoney .
QA G SRC4166:3RM _ . _ _ _ _ _ _ . _ _ _. _ _
UVNS-TSR-025 Rev. O TABLE 1 COMP GEL TIME PEHETRATION BLEED WATER STRENGTH SLURRY DENSITY SAMPLE 102 (mins) _ (esi) (mis) (osii (c/mli Total Solids Variations SWCF4 28.79% 10 >700 <1 2021 1.75 SWCF4 30.14% 10 >700 <1 1817 1.77 SWCF4 32.23% 5 >700 <1 1601 1.76 SWCF4 34.91% 7 >700 <1 1343 1.79 SWCF4 41.46% SS >700 <1 859 1.81 SRC4166:3RM ._ _ _ _- _ __ _ _ _ _ _ _ _ _ .
WVNS-TSR-025
- Rev.-0 i
TABLE 2
{
CONP GEL TINE PENETRATION BLEED WATER STRENGTH SLURRY DENSITY -
fosi)
SAMPLE ID. (mins) (mis) _,[gsi) (c/mt) i calcium Nitrate Variations SWCF4 NR 0% 7 >700 <1 1054 NA SWCF4 NR 0% 10 >700 <1 1334 1.80 SWCF4 NR 0% 20 >700 <1 822 1.74 SWCF4 NR 3% 5 >700 <1 1535 1.79 SWCF4 NR 3% 5 >700 <1 1359 1.74 ,
SWCF4 NR 4% 5 >700 <1 1331 1,74 -
SWCF4 NR 5.7% 5 >700 <1 1581 1.71 SWCF4 NR 9% 5 >700 <1 1518 1,66 SWCF4 NR 11.4% 5 >700 <1 1274 1.67 SWCF4 NR 17.1% 5 >700 <1 481 1,63 t
SRC4166:3RM . . . - - . . . . . . - - .._ . . . . . . - . - - . - - ..- . .- - . - . - . . , _ - . - - _ . - _ - - . . . . _ - . _ . - _ _ _ . .
UVHS-TSR-025 Rev. 0 TABLE 3 COMP GEL TIME PENETRATION BLEED WATER STRENGTH SLURRY DENSITY SAMPLL'lL, (mins) (DSi) (mis) (DSi) (Q/ml)
Water to Cc;nent ibtio SWCF4 0.50 5 >700 <1 2174 NA SWCF4 0.55 5 >700 <1 1731 NA SWCF4 0.61 5 >700 <1 1434 1.77 SWCF4 0.70 5 >700 <1 1089 NA SWCF4 0.70 7 >700 <1 1216 1.71 .
SWCF4 0.80 30 >700 <1 565 NA SWCF4 0.80 20 >700 <1 788 1.62 SRC4166:3RM . __ _ _ _ ___ _ _ _ _ _ _ _ _ _
BVNS-TSR-025 Rev. 0 TABLE 4 C0hP GEL TIME PENETRATION BLCED WATER 3TRENGTH SLURRY DENSITY SAMPLE 10. (minsi fosii (mis) -fosil fo/mli Antifoam Variation SWCF4 0 ml 5 >700 <1 1777 1.69 SWCF4 0.075 ml 5 >700 <1 1695 1.78 ~
SWCF4 0.15 ml 5 >700 <1 947 1.76 SWCF4 0.30 ml 5 >700 <1 1443 1,76 SWCF4 0.375 ml 5 >700 <1 1591 1.75 SWCF4 0.45 ml 5 >700 <1 1418 1.75 SWCF4 0.60 ml 5 >700 <1 1479 1.72 SRC4166:3RH -7
- - - - - _ - - - - - _____m____ _
, WVNS-TSR-025 Rev. 0 TABLE 5 COMP GEL TIME PENETRATION BLEED WATER STRENGTH SLURRY DENSITY SAHPLE 10. (mins)- fosii (mls) _(osi) fo/ml) _ _ . ,
Sodium Silicate Variations SWCF4 NR 0 g 10 >700 2 1926 1.80 l SWCF4 NR 2.75 g 5 >700 <1 1400 NA SWCF4 NR 5.09 g 0 >700 <1 1367 1/66 SWCF4 NR 8.25 g 5 >700 <1 1500 1/76 SWCF4 NR 10.04 g 5 >700 <1 1489 1.74 SWCF4 NR 13.75 g 5 >700 <1 1321 1,77 SWCF4 NR 15.38 g 7 >700 <1 1308 NA SWCF4 NR 16.88 g 20 >700 <1 1281 1.71 l
\
SRC4166:3RM UVHS-TSR-025 Rev. 0 TABLE 6 COMP GEL TIME PENETRATION BLEED WATER STRENGTH SLURRY DENSITY SAMPLE 10. (mins)- fosi) (mis) fosi) (cfml)
Nominal Recipe SWCF4 NR E >700 <1 1339 1.73 SWCF4 NR 5 >700 <1 1435 1.71 SWCF4 NR 5 >700 <1 1203 1.74 SWCF4 NR S >700 <1 1253 1.75 SWCF4 NR 5 >700 <1 1438 1.70 SWCF4 NR 5 >700 <1 1263 1.75 SWCF4 NR 5 >700 <1 1694 NA SWCF4 NR 5 >700 <1 1296 NA SWCF4 NR S >700 <1 1303 NA SWCF4 NR 5 >700 <1 1722 1.75 -
SWCF4 NR 5 >700 <1 1432 1.77 SWCF4 NR 5 >700 <1 1401 1.76 SWCF4 NR 5 >700 <1 1464 1.77 SRC4166:3RH .
' l
' WVNS-TSR-025 l Rev. 0 l TABLE 7
" NOMINAL" RECIPE SATISFACTORY RANGE FOR SUPERNATANT FROM THIS PARAMETER PROCESSING TEST PRQq{ DURE
% Solids in Waste 37 to 41% 28.79 to 34.91%
Calcium Nitrate 4.7 to 7.4% 3.0 to 11.4%
W/C Ratio 0.54 to 0.70 0.50 to 0.70 Antifoam 0.30 mL 0 mL to 0.60 mL Sodium Silicate 10.5 to 11.5 grams 2.75 to 15.3 grams
, Compressive Strength >500 PSI 1403 PSI Average ,
Gel Time o to 90 minutes 5 to 10 minutes l
l l
l l
l SRC4166:3RM _ , ___ _ _ . _ _ . _ . .