Sample

Langmuir model

Frendaulich model

Xm

K

R2

K

n

R2

A4

1429

0.0200

0.99

229

3.44

0.98

Faujasite X

909

0.0060

0.98

49

2.37

0.99

Faujasite Y

(667)

(0.0008)

(0.60)

1.0

1.22

0.94

Na-P1

250

0.0027

0.96

4.0

1.70

0.94

Modernite

192

0.0110

0.92

28

3.40

0.92

Montmorillonite

116

0.0057

0.99

9.0

2.74

1.00

Clinoptilolite

(74)

(0.0016)

(0.55)

0.57

1.54

0.88