Table 8 Zeta potential measurements [mV] for selected concentrations (test with dispersions performed in Erlenmeyer flasks)
TiO2 concentration [mg/L] | |||||||||
|---|---|---|---|---|---|---|---|---|---|
0 (Control) | 7 | 22 | 66 | 100 | |||||
With algae | Without algae | With algae | Without algae | With algae | Without algae | With algae | Without algae | With algae | |
Smaller particles | |||||||||
Day 0 (test start) | (–20.3)1 | –23.6 | –23.6 | –23.4 | –24.3 | –23.2 | –23.6 | –23.8 | –23.8 |
Day 3 (test end) | –33.3 | –24.0 | –35.9 | –25.1 | –25.9 | –23.5 | –25.1 | –23.7 | –23.9 |
Larger particles | |||||||||
Day 0 (test start) | (–20.3)1 | –26.2 | –26.6 | –25.8 | –26.1 | –26.0 | –26.4 | –25.3 | –25.7 |
Day 3 (test end) | –33.3 | –25.1 | –32.3 | –21.8 | –24.9 | –25.2 | –25.9 | –24.4 | –27.2 |