A Novel Bioflocculant from Raoultella planticola Enhances Removal of Copper Ions from Water

Table 4

ANOVA analysis for quadratic model.

Source	Sum of squares	DF	Mean square	value	value
Model	36978.58	20	1848.93	9.84	<0.0001
B: pH	3752.76	1	3752.76	19.97	0.0001
C: time	1162.27	1	1162.27	6.18	0.0189
D: bioflocculant	16684.25	1	16684.25	88.78	<0.0001
E: GO inducer	827.94	1	827.94	4.41	0.0446
AE	1291.13	1	1291.13	6.87	0.0138
Residual	5450.09	29	187.93
Lack of fit	5449.06	22	247.68	1682.20	<0.0001
Pure error	1.03	7	0.15
-squared	0.87
Adj -squared	0.78
Adeq precision	11.12