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

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

Isotherm Parameters Pb Mn Cu
PWB CWB PWB CWB PWB CWB
Linearized Freundlich Isotherm KF 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
qmax 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 KF 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
qmax 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