Table 3.

The parameters calculated from breakthrough curves

Service cycle No	VB BV	tB h	qB mmol g−1	qE mmol g−1	η -	F -	hz, cm
1st	305	69.12	0.451	0.547	0.83	0.500	5.54
2nd	340	76.83	0.528	0.650	0.81	0.380	5.77
3rd	395	89.33	0.604	0.692	0.87	0.445	3.42
4th	210	47.42	0.564	0.631	0.89	0.435	1.96
5th	420	63.25	0.624	0.726	0.86	0.319	3.83
6th	348	52.50	0.578	0.786	0.74	0.636	2.08
7th	353	26.58	0.593	0.703	0.84	0.520	1.23
8th	271	10.21	0.443	0.714	0.62	0.430	3.39
9th	294	7.39	0.482	0.759	0.63	0.474	3.07

V_B – the volume at breakthrough point (BV), BV – the number of bed volume, t_B – the time at breakthrough point (h), q_B – the capacity at the breakthrough point (mmmol/g), q_E – the capacity at the exhaustion point (mmol/g), η – the column efficiency (q_B/q_E), F – the parameter measuring the symmetry of the breakthrough point (-), h_z – the height of the mass transfer zone (cm)