Table 3.

Kinetic parameters of adsorption of Cr⁶⁺ ions to activated TETA-PP

Sorbent dose (g/L)	Cr6+ conc. (mg/L)	ELH			IPD
		β	α	R2	Kdif	C	R2
1.0	100	0.084	2.03 × 102	0.9801	3.213	56.017	0.9761
	150	0.088	7.55 × 103	0.8889	2.861	96.524	0.7738
	200	0.105	5.26 × 105	0.6686	2.477	122.980	0.6142
	250	0.073	1.23 × 105	0.8977	3.819	148.630	0.9617
	300	0.085	3.57 × 106	0.9731	3.164	170.450	0.9643
	400	0.075	1.05 × 108	0.9392	3.604	235.600	0.9459
1.5	100	0.606	2.03 × 1015	0.8785	0.413	60.713	0.7511
	150	0.097	9.10 × 102	0.9488	2.696	66.223	0.8854
	200	0.235	1.74 × 1011	0.9653	1.122	112.350	0.9144
	250	0.069	4.65 × 103	0.8455	3.617	113.060	0.7205
	300	0.098	2.91 × 106	0.9877	2.750	147.090	0.9836
	400	0.086	3.41 × 106	0.8179	3.243	166.250	0.8799
2.0	100	1.415	9.24 × 1027	0.6281	0.167	47.261	0.4810
	150	0.179	3.21 × 104	0.6822	1.338	60.125	0.5362
	200	0.282	1.68 × 1010	0.8863	0.941	85.762	0.8533
	250	0.159	5.13 × 106	0.8626	1.577	98.043	0.7460
	300	0.105	1.83 × 105	0.9443	2.614	111.750	0.9678
	400	0.147	9.83 × 109	0.8916	1.905	155.950	0.9530
2.5	100	1.532	6.37 × 1023	0.9015	0.170	37.336	0.8319
	150	0.863	1.56 × 1020	0.8626	0.293	56.042	0.7526
	200	0.811	3.53 × 1025	0.9592	0.320	74.660	0.8847
	250	0.406	3.19 × 1015	0.9489	0.657	90.277	0.9258
	300	0.297	1.67 × 103	0.8537	0.937	104.360	0.9057
	400	0.161	1.86 × 109	0.7282	1.534	134.250	0.6051
3.0	100	5.079	2.89 × 1069	0.5121	0.059	32.135	0.6225
	150	1.173	1.19 × 1023	0.9001	0.221	47.092	0.8249
	200	1.109	4.35 × 1029	0.9635	0.243	63.294	0.9578
	250	0.629	3.31 × 1020	0.9421	0.439	77.286	0.9830
	300	0.628	9.60 × 1024	0.9544	0.4283	93.801	0.9458
	400	0.203	6.02 × 109	0.9516	1.3383	112.35	0.9585