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Table 3 The measured radionuclide compositions of spiked blank solutions

From: Effect of reducing groundwater on the retardation of redox-sensitive radionuclides

A. Measured initial radionuclide concentrations (μg/L) in synthetic J-13 water
Test ID Test Condition Sr Tc-99 I Cs Re Np-237 U Pu-242
A atm 3648 ± 117 9.88 12764 ± 1137 1112 ± 38.5 159 ± 5.09 199 ± 5.66 1192 ± 36.2 0.0785 ± 0.004
   (4.16 × 10-5)a (9.99 × 10-8) (1.01 × 10-4) (8.37 × 10-6) (8.54 × 10-7) (8.39 × 10-7) (5.01 × 10-6) (3.24 × 10-10)
B 1% O2 4695 ± 9.62 12.7 ± 0.06 19116 ± 62.2 1469 ± 0.57 209 ± 1.36 261 ± 1.19 1118 ± 34.5 0.113 ± 0.0001
C 0.1% O2 4598 ± 11.3 12.4 ± 0.00 18616 ± 679 1439 ± 2.26 204 ± 0.40 258 ± 0.06 1518 ± 11.3 0.111 ± 0.017
D 11 ppm FeCl2 3190 ± 162 8.91 ± 0.29 2071 ± 481 993 ± 40.7 151 ± 4.53 148 ± 6.62 393 ± 477 0.032 ± 0.036
E 24 ppm Na2S 3134 ± 50.9 8.63 ± 0.12 1090 ± 0.00 986 ± 44.1 159 ± 19.1 162 ± 21.0 656 ± 268 0.030 ± 0.023
Method detection limit 0.1 0.005 20 0.2 0.02 0.002 0.05 0.0005
a Average concentration (mol/L) in parentheses.
B. Measured initial radionuclide concentrations (μg/L) in synthetic LCA water
Test ID Test Condition Sr Tc-99 I Cs Re Np-237 U Pu-242
A atm 3630 ± 246 9.56 ± 0.61 11900 ± 990 1109 ± 78.6 159 ± 11.0 200 ± 1.48 1202 ± 91.6 0.100 ± 0.008
B 1% O2 4724 ± 76.4 12.4 ± 0.27 18516 ± 84.8 1473 ± 25.5 206 ± 4.41 262 ± 3.56 1587 ± 25.5 0.136 ± 0.001
C 0.1% O2 4629 ± 2.26 12.3 ± 0.00 19276 ± 119 1437 ± 9.05 204 ± 0.45 260 ± 0.11 1556 ± 2.83 0.133 ± 0.0002
D 11 ppm FeCl2 3656 ± 522 9.72 ± 1.39 1968 ± 87.7 1099 ± 158 162 ± 23.1 139 ± 21.0 62.1 ± 81.0 0.008 ± 0.008
E 24 ppm Na2S 3182 ± 83.2 8.53 ± 0.19 846 ± 7.35 966 144 ± 4.36 144 ± 5.32 207 ± 52.1 0.011 ± 0.006
C. Measured initial radionuclide concentrations (μg/L) in synthetic TCU water
Test ID Test Condition Sr Tc-99 I Cs Re Np-237 U Pu-242
A atm 3786 ± 3.39 9.88 ± 0.02 12252 ± 28.3 1166 ± 7.92 163 ± 0.45 207 ± 0.34 1252 ± 0.57 0.106 ± 0.0004
B 1% O2 4720 ± 41.9 12.7 ± 0.06 20788 ± 73.5 1483 ± 11.3 211 ± 1.19 266 ± 3.73 1114 ± 19.2 0.135 ± 0.003
C 0.1% O2 4601 ± 0.00 12.1 ± 0.01 18152 ± 67.9 1434 ± 2.26 200 ± 0.40 256 ± 2.66 1549 ± 11.9 0.134 ± 0.002
D 11 ppm FeCl2 3149 ± 24.3 8.39 ± 0.04 1896 ± 301 957 ± 10.8 141 ± 0.74 98.6 ± 33.1 962 ± 33.9 0.037 ± 0.042
E 24 ppm Na2S 3174 ± 215 8.54 ± 0.57 946 ± 46.4 1018 ± 22.6 180 ± 32.8 190 ± 44.3 1374 ± 314 0.107 ± 0.007