Environmental Engineering Reference
In-Depth Information
Table 1 (
continued)
Elements or groups
Conditional stability constants (log
10
K
)
pH
References
Fulvic acid
a
Humic acid
a
Tryptophan or
protein or EPS
a
Autochthonou DOM
or hydrophilic or
hydrophobic
a
Other organic
ligands
a
Cu
2
+
with fulvic acid
(extracted from soil) (Ex/
Em
=
335/350 nm)
4.78-5.70 (
K
1
)
-
-
-
-
5.0-7.0
Hays et al. (
2004
)
Fe
3
+
with fulvic acid (modeled)
5.66 (
K
1
)
-
-
-
-
4
Antunes et al.
(2007
)
Hg
2
+
with fulvic acid (modeled)
4.44 (
K
1
)
-
-
-
-
6
Antunes et al.
(2007
)
UO
2
2
+
with fulvic acid (mod-
eled)
5.46 (
K
1
)
-
-
-
-
3.5
Antunes et al.
(2007
)
Cu
2
+
with humic acid (modeled)-
4.83 (
K
1
)
-
-
-
6
Antunes et al.
(2007
)
Cu
2
+
with humic acid (modeled)-
8.55 (
K
1
); 4.02
(
K
2
)
-
-
-
?
Tipping
(1994
)
Cu
2
+
with humic acid (extraced
from soil)
-
3.99-4.49 (
K
1
)
-
-
-
4
Cao et al. (
2004
)
Fe
3
+
with humic acid (modeled) -
6.79 (
K
1
)
-
-
-
4
Antunes et al.
(2007
)
Hg
2
+
with humic acid (mod-
eled)
-
5.50 (
K
1
)
-
-
-
6
Antunes et al.
(2007
)
UO
2
2
+
with humic acid (mod-
eled)
-
4.27 (
K
1
)
-
-
-
3.5
Antunes et al.
(2007
)
As
3
+
with Aldrich humic acid
(modeled)
-
5.8-7.2 (
K
1
);
4.5-5.3 (
K
2
)
-
-
-
5.2-9.3
Liu and Cai
(2010
)
Cu
2
+
with tryptophan (modeled)
(Ex/Em
=
285/360 nm)
-
-
4.88-4.90 (
K
1
)
-
-
6
Hays et al.
(2004
)
Cu
2
+
with glycyl-tryptophan
(modeled) (C
13
H
15
N
3
O
3
)
(Ex/Em
=
285/360 nm)
-
-
5.81-6.02 (
K
1
)
-
-
6
Hays et al. (
2004
)
