Research Article
Optimization of C/N Ratio and Inducers for Wastewater Paper Industry Treatment Using Trametes versicolor Immobilized in Bubble Column Reactor
Table 1
Values of real values and coded levels used in the factorial designs.
| (a) |
| | Treatment | Factor | Factor | Decolorization (%) | COD removal (%) | Laccase volumetric activity (U/L) | MnP volumetric activity (U/L) |
| | 1 | −1 | −1 | 7.24 | 10.26 | 0 | 0.3 | | 2 | +1 | −1 | 20.13 | 72.47 | 23.08 | 1.57 | | 3 | −1 | +1 | 10.57 | 15.60 | 0 | 0.89 | | 4 | +1 | +1 | 60.36 | 51.40 | 60.36 | 8.64 | | 5 | 0 | 0 | 55.97 | 19.05 | 44.67 | 0.16 | | 6 | 0 | 0 | 57.14 | 23.81 | 48.04 | 0.13 | | 7 | 0 | 0 | 59.20 | 18.18 | 44.5 | 1.6 |
|
|
Numeric value equivalent to the code level (−1), (+1) (0).
|
| (b) |
| | Factor level | C/N ratio ()
| Inductor concentration () mM MnSO4/mM CuSO4 |
| | Lower level | 10/1 | 0.029/1 | | Upper level | 169/1 | 0.071/2 |
| | Central point | 90/1 | 0.05/1.5 |
|
|
