In Situ Generated Colloid Transport of Cu and Zn in Reclaimed Mine Soil Profiles Associated with Biosolids Application
Table 3
Total, colloidal, and percent-bound Cu and Zn for eluents from the Virginia and Kentucky treatments*.
VNα
VR
VS
VB
KN
KR
KS
KB
Total Cu (mg)
0.04 a (<0.01)
0.32 a (0.27)
0.04 a (0.05)
0.93 a (0.72)
0.12 b (0.04)
0.0 b (na)
0.49 b (0.10)
3.30 a (0.91)
Dissolved Cu (mg)
0.03 a (<0.01)
0.05 a (0.05)
0.04 a (0.05)
0.87 a (0.66)
0.02 b (<0.01)
0.0 b (na)
0.75 b (0.10)
3.04 a (0.87)
Colloid Cu (mg)
0.01 a (<0.01)
0.23 a (0.21)
0.01 a (<0.01)
0.07 a (0.06)
0.10 b (0.03)
0.0 c (na)
0.0 c (na)
0.26 a (0.04)
Bound Cu (%)
27.3 b (9.69)
82.0 a (1.64)
29.9 b (28.37)
6.5 b (1.18)
80.9 a (3.1)
0.0 c (na)
0.0 c (na)
8.2 b (1.08)
Total Zn (mg)
5.13 b (0.46)
3.29 b (2.60)
6.78 b (3.09)
21.53 a (8.53)
11.76 a (0.04)
2.75 a (1.47)
50.73 a (39.2)
7.04 a (6.8)
Dissolved Zn (mg)
5.09 b (0.45)
2.93 b (2.73)
6.74 b (3.10)
20.75 a (8.30)
11.44 a (0.08)
2.41 a (1.54)
50.73 a (39.2)
6.39 a (6.20)
Colloid Zn (mg)
0.04 b (<0.01)
0.36 b (0.13)
0.04 b (0.01)
0.78 a (0.22)
0.32 a (0.13)
0.34 a (0.07)
0.0 a (na)
0.65 a (0.60)
Bound Zn (%)
0.7 a (0.09)
18.2 a (18.4)
0.5 a (0.37)
3.7 a (0.46)
2.7 ab (1.05)
15.4 a (10.78)
0.0 b (na)
9.7 ab (0.78)
* = Statistical differences (LSD = 0.05) are represented by letters and are compared within row by sites only, standard deviations are in parenthesis, na = not applicable. = VN: Virginia Natural, VR: Virginia Reclaimed, VS: Virginia Spoil, VB: Virginia Biosolids, KN: Kentucky Natural, KR: Kentucky Reclaimed, KS: Kentucky Spoil, KB: Kentucky Biosolidsg.
