Biosorption Study of Methylene Blue (MB) and Brilliant Red Remazol (BRR) by Coconut Dregs

Table 2

Anova (analysis of variance) for 2-level factorial of BRR adsorption capacity.

Source	Sum of squares	Df	MeanSquare	F Value	p-value Prob > F
Model	85.6013	7	12.2288	215.4148	<0.0001	Significant
A-time	24.9532	1	24.9532	439.5619	<0.0001	Significant
B-dosage	41.0835	1	41.0835	723.7029	<0.0001	Significant
C-concentration	2.36792	1	2.36792	41.7119	<0.0001	Significant
D-pH	1.52880	1	1.5288	26.9305	<0.0001	Significant
AB	13.6367	1	13.6367	240.2169	<0.0001	Significant
BC	1.18126	1	1.1813	20.8084	0.0001	Significant
BD	0.84988	1	0.8499	14.9711	0.0007	Significant
Curvature	1.83158	1	1.8316	32.2641	<0.0001	Significant
Residual	1.47598	26	0.0568
Pure error	0.05767	18	0.0032
Cor total	88.9089	34
Std. Dev.	0.24		R-squared		0.9830
Mean	1.67		Adj R-Squared		0.9785
C.V. %	14.27		Pred R-Squared		0.9699
PRESS	2.62		Adeq precision		41.4950