Skip to main content

Advertisement

Table 5 Measured redox potential Eh (mV), referenced to standard hydrogen electrode, in different treatments

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

Test ID Alluvium/J-13 Devitrified tuff/J-13 Zeolitic tuff/TCU Carbonate/LCA
  J-13 Controla Blank Sorption Blank Sorption Control Blank Sorption Control Blank Sorption
A 362 ± 13 368 ± 4.8 312 ± 9.9 341 ± 11 338 ± 10 357 ± 6.1 340 ± 5.7 319 ± 5.7 345 ± 4.5 353 ± 1.5 335 ± 4.2
B 207 ± 0.14 205 ± 0.64 206 ± 2.0 201 ± 2.4 203 ± 2.0 186 ± 0.215 191 ± 0.35 187 ± 1.2 195 ± 2.8 204 ± 0.4 195 ± 0.4
C (-50) ± 1.0 (-27) ± 2.8 (-31) ± 1.1 (-41) ± 0.21 (-22) ± 0.31 29.4 ± 0.64 (-8.3) ± 0.21 (-25) ± 0.36 (-35) ± 0.64 (-34) ± 1.6 (-22) ± 1.4
D (-55) ± 9.9 (-83) ± 0.07 (-82) ± 1.0 (-82) ± 0.78 (-70) ± 1.4 (-98) ± 1.3 (-102) ± 2.8 (-95) ± 0.60 (-54) ± 2.5 (-90) ± 0.14 (-82) ± 0.67
E (-50) ± 1.0 (-47) ± 1.8 (-63) ± 6.5 (-56) ± 2.4 (-59) ± 2.7 (-52) ± 0.78 (-69) ± 0.21 (-73) ± 0.38 (-52) ± 0.14 (-59) ± 2.2 (-68) ± 0.85
  1. a The alluvium/J-13 control is also applicable for devitrified tuff/J-13 treatment.