Preparation of Mesoporous-Activated Carbon from Branches of Pomegranate Trees: Optimization on Removal of Methylene Blue Using Response Surface Methodology

Table 2

ANOVA results for MB removal by BPAC.

Source	Sum of squares	Degree of freedom	Mean square	𝐹 value	Prob > 𝐹
Model	1843.81	9	204.87	14.77	0.0001
𝑋1	414.38	1	414.38	29.87	0.0003
𝑋2	0.83	1	0.83	0.060	0.8119
𝑋3	1002.34	1	1002.34	72.25	0.0001
𝑋^21	16.84	1	16.84	1.21	0.2964
𝑋^22	0.56	1	0.56	0.040	0.8448
𝑋^23	164.55	1	164.55	11.86	0.0063
𝑋1𝑋2	220.50	1	220.50	15.89	0.0026
𝑋1𝑋3	0.50	1	0.50	0.036	0.8532
𝑋2𝑋3	32.00	1	32.00	2.31	0.1598