The distance from the cathode [cm] Time [d]
0 1 2 3 4 7 14 21 28
1 8.88 10.45 10.36 10.35 10.11 9.23 9.73 9.64 9.05
3 8.88 10.26 10.00 9.98 9.97 8.77 9.70 9.22 8.78
5 8.88 10.21 9.98 9.95 9.09 8.88 9.60 8.89 8.65
7 8.88 10.14 9.89 9.82 9.76 9.77 9.50 8.79 8.67
9 8.88 7.96 8.72 8.5 8.63 7.75 8.55 8.00 8.00
Table 9: pH profile of the sample used for test ECR_Sa.