Modeling and Optimization for Production of Rice Husk Activated Carbon and Adsorption of Phenol

Table 3

Regression statistics for adsorption capacity (model for response ).

Source	Standard Deviation		Adjusted	Predicted	Comment
Linear	0.19	0.9173	0.9018	0.8114
2FI	0.073	0.9897	0.9850	0.9442
Quadratic	0.036	0.9981	0.9963	0.9819	Suggested
Cubic		1.0000	1.0000	0.9902	Aliased