Table 9 Variance analysis results of regression equation of diesel oil adsorption capacity.
From: Oil removal from wastewater with biomass-derived hydrochars laboratory insights
Source of variance | Square sum | Degrees of freedom | Mean square | F value | P value | Significance |
|---|---|---|---|---|---|---|
Model | 6941.26 | 9 | 771.25 | 102.25 | < 0.0001 | ** |
A | 1861.72 | 1 | 1861.72 | 246.82 | < 0.0001 | ** |
B | 1295.91 | 1 | 1295.91 | 171.81 | < 0.0001 | ** |
C | 352.19 | 1 | 352.19 | 46.69 | 0.0002 | ** |
AB | 397.20 | 1 | 397.20 | 52.66 | 0.0002 | ** |
AC | 13.99 | 1 | 13.99 | 1.85 | 0.2155 | |
BC | 1.12 | 1 | 1.12 | 0.15 | 0.7110 | |
A2 | 824.32 | 1 | 824.32 | 109.29 | < 0.0001 | ** |
B2 | 986.54 | 1 | 986.54 | 130.79 | < 0.0001 | ** |
C2 | 891.01 | 1 | 891.01 | 118.13 | < 0.0001 | ** |
Residual error | 52.80 | 7 | 7.54 | |||
Lack of fit | 40.39 | 3 | 13.46 | 4.34 | 0.0951 | |
Error | 12.41 | 4 | 3.10 | |||
Sum | 6994.06 | 16 |
