Utilization of Cactus Peel as Biosorbent for the Removal of Reactive Dyes from Textile Dye Effluents

Table 4

Equilibrium and calculated data for Langmuir and Freundlich isotherm model plots (solution initial pH = 4.0, biosorbent dose = 6.0 g, and contact time = 120 min).

Ce (mg/L)	qe (mg/g)	Langmuir isotherm model	Freundlich isotherm model
		Ce/qe	Log (Ce)	Log (qe)
11.3465	1.963	5.62	1.055	0.293
6.0256	2.245	2.56	0.78	0.251
18.6636	2.133	8.75	1.271	0.329
11.6412	1.958	5.95	1.066	0.292
1.7298	1.601	1.08	0.238	0.204