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
+
H
with humic acid of various
sources
-
7.15-9.80 ( K 1 );
2.80-4.94 ( K 2 )
-
-
-
Vidali et al. ( 2009 )
Be 2 +
-
4.0
-
-
-
7
Takahashi et al. (1997 )
Ca 2 +
-
1.0
-
-
-
7
Takahashi et al. (1997 )
Ca 2 +
with alpha-isosaccharinate -
-
-
-
1.70-1.80
van Loon et al. (2004 )
Sr 2 +
-
0.5
-
-
-
7
Takahashi et al. (1997 )
Ba 2 +
-
0.5
-
-
-
7
Takahashi et al. (1997 )
Ga 3 +
-
10.0
-
-
-
7
Takahashi et al. (1997 )
Transition metals
Cu 2 +
with river DOM/humic
substances
7.0-8.1 ( K 1 ); 5.4-6.1
( K 2 )
-
-
-
-
?
Breault et al. (1996 )
Cu 2 +
with river and canal
DOM/humic substances
8.3-8.5 ( K 1 ); 6.0-6.6
( K 2 )
-
-
-
-
?
Mcknight et al.
(1983 )
Cu 2 +
with river fulvic acid (Ex/
Em = 315-330/426-434 nm)
7.21-7.31 ( K 1 )
-
-
-
-
?
Wu et al. ( 2001 )
Cu 2 +
5.3
-
-
-
-
6
Konstantinou et al.
2009
Cu 2 +
with lake autochthonous
fulvic acid (M-like: 310-
320/376-386 nm) at 2.5 m
7.84-7.96 ( K 1 )
-
-
-
-
?
Wu et al. ( 2001 )
Cu 2 +
with lake autochtho-
nous fulvic acid (M-like:
250/414-438 nm) at 2.5 m
7.06-7.67 ( K 2 )
-
-
-
-
?
Wu et al. ( 2001 )
Cu 2 +
with lake autochthonous
fulvic acid (M-like: 310-
320/376-386 nm) at 70 m
9.23 ( K 1 )
-
-
-
-
?
Wu et al. ( 2001 )
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