10-3
10.5
10-7
10-9
10-11
10-13
10-15
10-17
10-19
10-21
10-23
10-25

' "   . . . . . .(a )'
C =2 mg/L
00=400 mg/L
L=0.5 m
L    1.5 m
L=2.Om  L=1.Om
)l m/d
A,!

1.0

10.0

Zero-Valent Iron Content (%)

C :2 mg/L-

C0=400 mg/L
L = 0.5 m
L = 1.0 m
1.5m

L=2.0m

1013
10-15
-Seepage Velocity =0. 1 m/d
1 0 -17  -  I I,  I III       I  I

,  I I, I     I -
6    8   10

Zero-Valent Iron Content (%)

Fig. 5.17. Required Barrier Thickness as a Function of Zero-Valent Iron
Content and Barrier Thickness: (a) Vs = 0.01 m/d and (b) Vs = 0.1
m/d.

126

o
0

Seepage Velocity= O.C

0.1

101
io-

'(b)

C
0

10-11

I         I     I    I    I  I   I  I  I              I    I    I  w  I    L    I  I   I

I      I    I   I

I      I-- -T

I    I

I    I