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4.2 Design of Adsorption and Ion-Exchange Processes 281

The parameters c , c , and c are functions of the parameter and their value is dif , ferent,
1 2 3
depending on the charge of the exchanging ions (B—initially in the solid phase, and A—
initially in the liquid phase) (Helf 1995): ferich,
for z z and 0.1 10,
B A
1
c (4.74)
1 0.775
0.57 0.43
1
c (4.75)
2
0.26 0.782
1
c (4.76)
3
0.165 0.177
for z = 1, z = 2 and 1 20,
B A
1
c (4.77)
1 0.668
0.64 0.36
1
c (4.78)
2 0.4635
0.96 2
1
c (4.79)
3 1.14
0.27 0.09

for z 2, z 1, 0.05 1, and T 0.04,
B A B
1
c (4.80)
1 0.86
0.35 0.65
1
c (4.81)
2 2.06
0.030 1.1012
1
c (4.82)
3 1.071
0.00265 0.354

1,
for z 2, z 0.05 1, and T 0.04,
B A B
1
c (4.83)
1 0.777
0.438 0.652
1
c (4.84)
2 1.057
0.127 0.915
1
c =
3 0.335 (4.85)
0.008 0.365