tg/L

pIg/L

Seepage Velocity= 0.01 m/d

L=0.1m

L = 0.2m

1013
10L-
10-15
0     2

L=0.3m

0.4 m
I  \   II

(a)

4           6          8          10

Zero-Valent Iron Content (%)

100
10-1
10-2

o
0
C)

10-6

10-8

2          4         6          8

10

Zero-Valent Iron Content (%)
Fig. 6.16. Normalized Alachlor Concentrations as a Function of Zero-Valent
Iron Content and Barrier Thickness: (a) Vs = 0.01 m/d (b) Vs = 0.1
m/d.

10-1
10-3

161

0
0

10-9
10- 11

1\1 I I