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Table 3 ANOVA for the response surface reduced quadratic model for the PS process

From: Degradation of paraquat herbicide using hybrid AOP process: statistical optimization, kinetic study, and estimation of electrical energy consumption

Source Sum of squares df Mean square F-value p-value prob > F
Model 2443.11 5 488.62 110.37  < 0.0001
A- S2O82− 2346.59 1 2346.59 530.06  < 0.0001
B- pH 19.06 1 19.06 4.30 0.0569
C- TiO2 24.86 1 24.86 5.61 0.0327
AB 16.44 1 16.44 3.71 0.0746
B2 36.17 1 36.17 8.17 0.0126
Residual 61.98 14 4.43   
Lack-of-fit 59.79 9 6.64 15.15 0.0040
Pure error 2.19 5 0.44   
Cor Total 2505.09 19