α and γ Alumina Spheres for Azo Dye (Allura Red) Removal from Aqueous Media

Table 1

Kinetic parameters from the PFO, PSO, ID, and ELOV models applied to the adsorption process of R40 on the γ-Alu spheres at  =10, 50, and 100 mg/L.

Kinetic model	=10 mg/L
	R40 removal =81.9793 ± 0.4782%
	Parameters
PFO	(mg/g)	8.1979
	(h^-1)	0.0177
		0.9818
PSO	(g/mgh)	21.2427
		0.9699
ID	(mg/g/min)	0.6146
		0.9966
ELOV		0.6268
		0.1662
		0.9952
Kinetic model	= 50 mg/L
	R40 removal =27.1959 ± 0.5776%
	Parameters
PFO	(mg/g)	13.5980
	(h^-1)	0.0166
		0.9830
PSO	(g/mgh)	76.5649
		0.9409
ID	(mg/g/min)	1.0129
		0.9913
ELOV		0.9393
		0.0943
		0.9944
Kinetic model	=100 mg/L
	R40 removal =18.9865 ± 4.9235%
	Parameters
PFO	(mg/g)	18.9865
	(h^-1)	0.0223
		0.9045
PSO	(g/mgh)	433.017
		0.9357
ID	(mg/g/min)	1.5623
		0.9483
ELOV		2.6635
		0.0879
		0.9396