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

Table 1

Parameters and goodness-of-fit measures from the linear form of the Langmuir 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
(L/mol of dye)	-91066.73	-236581.17	-3105.98	888.02
(mol of dye/mol of Pec)	-196.27	-574.12	-72.39	875.29
Intercept
Std. deviation of the intercept
Slope
Std. deviation of the slope
	0.271	0.032	0.509	0.776
Average relative error	0.434	0.515	0.676	0.392
Std. deviation of the model