 |
|
|
|
Table 2. Codified values of the variables for the experimental design. |
|
Run |
Aeration rate |
Agitation rate |
Impeller height |
| 1 |
-1 (1 vvm) |
-1 (500 rpm) |
-1 (8 cm) |
| 2 |
1 (3 vvm) |
-1 |
-1 |
| 3 |
-1 |
1 (900 rpm) |
-1 |
| 4 |
1 |
1 |
-1 |
| 5 |
-1 |
-1 |
1 (12 cm) |
| 6 |
1 |
-1 |
1 |
| 7 |
-1 |
1 |
1 |
| 8 |
1 |
1 |
1 |
| 9 |
-a (0.3 vvm) |
0 (700 rpm) |
0 (10 cm) |
| 10 |
a (3.7 vvm) |
0 |
0 |
| 11 |
0 (2.0 vvm) |
-a (370 rpm) |
0 |
| 12 |
0 |
a (1040 rpm) |
0 |
| 13 |
0 |
0 |
-a (6.7 cm) |
| 14 |
0 |
0 |
a (13.4 cm) |
| 15 |
0 |
0 |
0 |
| 15a |
0 |
0 |
0 |
| 15b |
0 |
0 |
0 |
|
|