Table 2 Box Behnken design for Temperature (°C, X1), pH (X2) and carbon source (g/L, X3) exhibiting actual and predicted value of PET degradation.
Trial 1 | Temperature (°C) | pH | Carbon source (g/L) | Weight loss PET powder (%) | |
|---|---|---|---|---|---|
Actual value | Predicted value | ||||
1 | 30 | 6 | 0 | 0.00 | 0.00 |
2 | 30 | 7 | 1 | 73.48 | 71.089 |
3 | 30 | 8 | 0 | 0.00 | 0.00 |
4 | 40 | 8 | 1 | 66.23 | 65.228 |
5 | 40 | 7 | 0 | 0.00 | 0.00 |
6 | 30 | 7 | 1 | 73.52 | 71.12 |
7 | 40 | 6 | 1 | 65.87 | 64.85 |
8 | 30 | 6 | 2 | 70.01 | 68.76 |
9 | 20 | 7 | 2 | 59.01 | 56.23 |
10 | 20 | 7 | 0 | 0.00 | 0.00 |
11 | 30 | 7 | 1 | 73.44 | 71.22 |
12 | 20 | 8 | 1 | 57.25 | 56.45 |
13 | 40 | 7 | 2 | 67.25 | 68.77 |
14 | 30 | 8 | 2 | 68.56 | 70.22 |
15 | 20 | 6 | 1 | 55.99 | 56.55 |
