International Scholarly Research Notices

Research Article

Sorption of Tetracycline, Oxytetracycline, and Chlortetracycline in Illite and Kaolinite Suspensions

Table 2

Freundlich adsorption isotherm constants of three antibiotics adsorption on illite and kaolinite, saturated with Na-, K-, Ca-, and Al-cations.


Sorbent	Tetracycline						Oxytetracycline						Chlortetracycline
	K			1/n			K			1/n			K			1/n
	293	308	323 K	293	308	323 K	293	308	323 K	293	308	323 K	293	308	323 K	293	308	323 K

Al-illite	108	100	94	0.880	0.855	0.825	113	105	99	0.895	0.865	0.840	117	109	103	0.915	0.885	0.865
Na-illite	103	97	90	0.865	0.835	0.800	106	101	96	0.880	0.850	0.820	111	104	99	0.895	0.865	0.840
K-illite	98	93	85	0.845	0.820	0.795	102	98	93	0.860	0.830	0.805	106	100	95	0.875	0.855	0.830
Ca-illite	93	88	80	0.835	0.805	0.785	96	92	85	0.845	0.820	0.805	102	96	90	0.860	0.835	0.815
Al-kaolinite	105	98	92	0.865	0.850	0.820	109	103	97	0.885	0.860	0.835	115	107	102	0.890	0.865	0.845
Na-kaolinite	101	95	88	0.855	0.830	0.810	103	98	93	0.875	0.850	0.820	110	103	97	0.880	0.850	0.835
K-kaolinite	96	91	86	0.840	0.810	0.790	101	95	90	0.860	0.835	0.805	105	99	93	0.865	0.845	0.820
Ca-kaolinite	91	86	79	0.830	0.800	0.775	95	90	86	0.845	0.820	0.795	99	93	89	0.855	0.830	0.810