. 2021 Jun 4;18(11):6075. doi: 10.3390/ijerph18116075

Table 4.

Characteristic parameters of Langmuir and Freundlich isotherms.

Metal	Reactive Materials	Langmuir					Freundlich
		q_m	K_L	RL	R²	RMSE	K_f	n	R²	RMSE
		(mg/g)	(mg/L)	RL	R²	RMSE	(L/g)	(g/L)	R²	RMSE
Zn	Cabuya fiber	11.20	0.74	0.016	0.97	0.010	5.33	4.21	0.95	0.071
	Clinoptilolite	12.53	3.13	0.004	0.95	0.010	8.00	5.12	0.88	0.020
	Mordenite	14.00	2.10	0.006	0.88	0.014	9.10	6.58	0.92	0.072
	Sodium mordenite	13.40	0.63	0.018	0.90	0.009	8.00	8.23	0.80	0.155
Cu	Cabuya fiber	16.47	0.11	0.123	0.99	0.015	3.42	2.29	0.95	0.025
	Clinoptilolite	15.60	0.59	0.028	0.96	0.029	4.21	2.41	0.93	0.188
	Mordenite	17.17	0.20	0.074	0.99	0.008	2.80	1.50	0.97	0.888
	Sodium mordenite	12.74	2.96	0.006	0.94	0.046	6.22	3.98	0.78	0.382
Cd	Cabuya fiber	7.67	0.41	0.152	0.99	0.172	1.66	1.83	0.98	0.192
	Clinoptilolite	15.58	0.13	0.287	0.99	0.019	2.65	2.29	0.92	0.364
	Mordenite	6.10	0.46	0.145	0.91	0.090	1.41	1.57	0.99	0.121
	Sodium mordenite	18.52	0.05	0.440	0.99	0.020	1.11	1.40	0.99	0.118