Sediment |
Initial pH of water |
Water column |
Interface water/sediment |
Sediment (middle part) |
Kaolinite + A.s. |
7.8 |
7.76 |
7.04, 7.13* |
6.05 |
Kaolinite control |
7.8 |
7.5 |
7.7 |
7.9 |
Art. SiO2 + A.s. |
7.8 |
8.20-8.25 |
8.35-8.44 |
7.78-7.80 |
Art. SiO2 control |
7.8 |
7.71-7.81 |
8.6 |
7.70-7.76 |
Clinochlore + A.s. |
7.8 |
8.7 |
8.80-8.92 |
8.17-8.22 |
Clinochlore control |
7.4-7.8 |
7.1-7.4 |
6.22-6.45 |
5.9-7.3 |
Chamosite + A.s. |
7.8 |
8.48 |
7.00-7.04 |
6.83-6.91 |
Chamosite control |
7.8 |
8.05-8.07 |
7.4 |
7.09-7.11 |
Montmorillonite + A.s. |
7.0 |
9.63-9.70** |
9.77-10.1*** |
10.9-11.0**** |