Environmental Sciences Europe

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

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