205

103

w
0
E,
E
..r

102
10 1

100

7

9

10

Clay Content (%)
Fig. 7.19.  Time to Equilibrium as a Function of Clay Content and Effluent
Solution pH.

_ I  I  I  I  I  I  I  I  I  I
Seepage Velocity= 0.1 m/d
Barrier Thickness = 1.0 m
Equilibrium pH 7
Equilibrium pH 5

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