Table 3.
Independent Variables | Range and Levels | ||
---|---|---|---|
−1 | 0 | 1 | |
Initial pH, x1 | 5.0 | 5.5 | 6.0 |
DO, x2 (%) | 10.0 | 20.0 | 30.0 |
Temperature, x3 (°C) | 26.0 | 28.0 | 30.0 |
Independent Variables | Range and Levels | ||
---|---|---|---|
−1 | 0 | 1 | |
Initial pH, x1 | 5.0 | 5.5 | 6.0 |
DO, x2 (%) | 10.0 | 20.0 | 30.0 |
Temperature, x3 (°C) | 26.0 | 28.0 | 30.0 |