193

S a II (pH    I  I  I 3I.0)I
0   Sand I (pH 3.0)
Sand 1 (pH 4.0)
Sand 2 (pH 4.0)
*   Sand 5 (pH 4.0)
*   Sand 10 (pH 3.0)
E( Sand 12 (pH 4.0)_
EB

0        2        4       6        8       10       12
Total Iron Content (%)
0   Sand' 1 '(pH '3.0)x
olSand I (pH 3.0)
0   Sand 2 (pH 4.0)
x   Sand 2 (pH 4.0)
+   Sand 5 (pH 4.0)
+D  Sand 10 (pH 3.0)
[] Sand 12 (pH 4.0)
0
(d)

5.5

6.0

6.5

7.0

Final Solution pH

Fig. 7.13. Effect of (a) TOC, (b) Clay Content, (c) Total Iron
Effluent pH on Partition Coefficient (Continued).

Content, and (d)

80
70

0
._1
0
0-

60

50
40
30
20    +

10

0)
-
a,
a,
0D
O
0
0-

80
70
60
50
40
30
20
10
0

5.0

f)