Table 6 Hg distribution under different sulfide concentration
Initial experimental parameters | |||
Sulfide conc. (μM) | 2 | 10 | 20 |
Hg conc. (μg L−1) | 16.61 | 17.53 | 18.60 |
pH | 6.83 | 7.43 | 6.96 |
Dissolved O2 (mg L−1) | 3.99 | 3.30 | 4.22 |
Hg partition after reaching equilibrium | |||
Dissolved Hg (%) | 25.2 | 35.1 | 25.0 |
Hg in AC (%) | 28.7 | 33.1 | 28.1 |
Particulate Hg (%) | 28.7 | 26.8 | 23.6 |