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Table 3

Different adsorption correlations and fitting parameters for Glycyrrhiza Glabra (Ahmadi et al., 2012).

Isotherm Correlation Parameters
Langmuir q e = (q o K ad C e)/(1 + K ad C e) R 2 q o K ad
0.9964 51.02 0.27
Freundlich R 2 n K f
0.9891 0.8412 9.7946
Temkin q e = B ln K t + B ln C e R 2 k T B
0.8733 5.31 10.599
Linear q e = K H C e + c R 2 K H C
0.9307 6.0665 4.8148

Here, is the equilibrium adsorption rate, is the equilibrium concentration, is the adsorption capacity, is adsorption equilibrium constant, n and are Freundlich constants, B is the Temkin constant, is the equilibrium binding constant, K H is the constant for linear isotherm, and c is the intercept of the linear isotherm.

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