Table 3 Parameters of the adsorption isotherm following Langmuir and Freundlich models for 17α-ethinylestradiol (EE2) and progesterone, where R2 is the determination coefficient, n is the heterogeneity parameter and KL and KF are the constants of Langmuir and Freundlich models, respectively.

From: Biochar from fungiculture waste for adsorption of endocrine disruptors in water

 

Parameter

EE2

Progesterone

Langmuir model

n

0.016

0.001

KL (mg/L)

0.443

0.4334

R2

0.9268

0.7083

Freundlich model

n

1.1073

0.158

KF (mg/g)

48.323

122.49

R2

0.9478

0.3405