Table 1.

Regression coefficients for pseudo first and pseudo second order models for the adsorption of (a) total phenolics (as mg gallic acid equivalents/g resin) and (b) ABTS radical scavenging compounds (as mg Trolox equivalents/g resin) present in winery wastes.

a	Pseudo First Order Model				Pseudo Second Order Model
	k1 (min−1)	qe calc (mg/g)	R2		k2 (g/mg·min)	qe calc (mg/g)	R2
Amberlite
XAD2	2.74	0.80	0.8544		0.025	1.98	0.9998
XAD4	2.25	1.54	0.9376		0.011	2.18	0.9929
XAD7HP	22.5	0.49	0.9716		0.190	1.98	0.9998
XAD16HP	29.0	0.89	0.9826		0.118	2.33	0.9997
XAD761	17.9	0.70	0.9612		0.103	2.29	0.9997
XAD1180	22.8	0.47	0.9597		0.197	2.18	0.9999
Diaion
HP20	24.5	0.56	0.9614		0.170	2.19	0.9999
HP2MG	26.8	0.38	0.9716		0.281	1.93	0.9999
Sepabeads
SP70	16.2	0.52	0.8779		0.139	2.43	0.9998
SP207	22.3	0.65	0.9855		0.139	2.57	0.9998
SP700	26.1	0.46	0.9681		0.240	2.60	0.9999
SP825	28.6	0.55	0.9558		0.220	2.39	0.9999
SP850	20.1	0.72	0.9630		0.112	2.45	0.9998
b	Pseudo First Order Model				Pseudo Second Order Model
	k1 (min−1)	qe calc (mg/g)	R2		k2 (g/mg·min)	qe calc (mg/g)	R2
Amberlite
XAD2	5.54	3.81	0.9475		9.59	7.91	0.9998
XAD4	9.11	7.97	0.9916		2.42	8.51	0.9983
XAD7HP	30.3	1.49	0.9169		105	6.90	0.9996
XAD16HP	21.2	2.77	0.9478		29.3	8.26	0.9997
XAD761	8.63	1.41	0.5970		40.1	7.90	0.9992
XAD1180	13.5	1.80	0.9828		38.7	8.04	0.9996
Diaion
HP20	15.7	1.33	0.7960		50.9	8.09	0.9999
HP2MG	15.7	0.80	0.7926		105	6.90	0.9999
Sepabeads
SP70	17.1	1.23	0.6610		62.5	8.94	0.9999
SP207	43.8	2.65	0.9722		61.1	9.05	0.9999
SP700	36.0	1.84	0.9579		60.9	9.06	0.9999
SP825	28.4	1.32	0.9453		125	8.92	0.9999
SP850	19.4	1.80	0.8165		40.6	9.06	0.9999