Table 4. Constants of Kinetic Models for Biosorption of CV and CR Dyes on the CDA Biosorbent.

kinetic models	parameters	CV	CR
	Qe,exp	18.34	17.80
pseudo-first-order	R2	0.999	0.994
	k1 (1/min)	0.046	0.028
	Qe,cal.1 (mg/g)	18.54	18.08
pseudo-pseudo-order	R2	0.976	0.983
	k2 (mg/g·min)	0.0026	0.0014
	Qe,cal.2 (mg/g)	21.40	21.55
intraparticle diffusion	kint.1 (mg/g·min0.5)	2.579	3.429
	kint.2 (mg/g·min0.5)	0.050	1.059
	kint.3 (mg/g·min0.5)		0.040