Application of the Zimm-Bragg Model to the Removal of Azo Dyes with Pectin

Table 2

Parameters and goodness-of-fit measures from the linear form of the Freundlich model obtained by linear regression to experimental data from each Pec-dye-Ca system.

	Pec-DR80-Ca	Pec-CR-Ca	Pec-MO-Ca	Pec-MR-Ca
(mol of dye/mol of Pec)(mol of dye/L)	1,127,755,625	1,934,791,921	135,987,109	48,105
	0.785	0.868	0.637	1.393
Intercept log	9.052	9.287	8.133	4.682
Std. deviation of the intercept	0.263	0.562	0.714	0.065
Slope	1.274	1.152	1.570	0.718
Std. deviation of the slope	0.044	0.085	0.178	0.016
	0.983	0.925	0.838	0.992
Average relative error	0.082	0.164	0.270	0.044
Std. deviation of the model	0.113	0.236	0.381	0.070