Adsorption of Lead, manganese, and copper onto biochar in landfill leachate: implication of non-linear regression analysis

Table 4 Linearized and non-linearized Freundlich isotherm constants for adsorption of Pb, Mn and Cu onto BC

Isotherm	Parameters	Pb		Mn		Cu
Isotherm	Parameters	PWB	CWB	PWB	CWB	PWB	CWB
Linearized Freundlich Isotherm	K_F	0.09	0.02	0.06	0.00	0.02	0.01
	n	1.99	0.74	1.14	0.67	1.11	0.67
	R²	0.994	0.994	0.992	0.990	0.991	0.991
	q_max	0.12	0.05	0.34	0.06	0.06	0.04
	SSE	0.374	0.312	5.086	5.536	0.446	0.528
Non-linearized Freundlich Isotherm	K_F	0.34	0.19	0.28	0.91	0.20	0.14
	n	2.03	0.81	1.11	0.72	1.22	0.71
	R²	0.967	0.990	0.988	0.989	0.993	0.998
	q_max	0.47	0.42	1.75	1.65	0.43	0.53
	SSE	0.0064	0.0012	0.0281	0.0216	0.0009	0.0004

ISSN: 2468-2039