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Table 6 Measured pH values 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 Control

Blank

Sorption

Blank

Sorption

Control

Blank

Sorption

Control

Blank

Sorption

A

7.63 ± 0.27

7.89 ± 0.01

7.84 ± 0.04

8.09 ± 0.13

7.89 ± 0.09

8.02 ± 0.06

7.91 ± 0.08

7.89 ± 0.03

8.01 ± 0.08

7.69 ± 0.13

7.84 ± 0.09

B

8.50 ± 0.34

8.76 ± 0.02

8.48 ± 0.03

9.08 ± 0.09

8.32 ± 0.03

8.98 ± 0.02

9.27 ± 0.04

9.01 ± 0.01

8.05 ± 0.04

9.26 ± 0.06

8.59 ± 0.02

C

8.72 ± 0.15

8.08 ± 0.02

8.70 ± 0.06

9.38 ± 0.04

8.66 ± 0.06

8.95 ± 0.20

8.30 ± 0.03

9.04 ± 0.04

9.64 ± 0.03

9.35 ± 0.14

8.89 ± 0.23

D

7.79 ± 0.04

8.97 ± 0.09

8.89 ± 0.03

8.57 ± 0.08

8.51 ± 0.06

9.54 ± 0.01

9.66 ± 0.03

9.63 ± 0.08

9.36 ± 0.10

9.50 ± 0.24

9.15 ± 0.03

E

8.40 ± 0.05

9.11 ± 0.17

9.01 ± 0.02

9.50 ± 0.05

8.75 ± 0.05

9.68 ± 0.01

9.85 ± 0.01

9.72 ± 0.01

8.54 ± 0.11

9.51 ± 0.14

9.28 ± 0.04