Electroleaching: a Mobile Cleanup Process for Mercury Contaminated Materials
445
1.2
HgO
- -
0.8
- - - - -
0.4
Hg (l)
a a
2
4
6
8
10
12
(a)
pH
Eh/V
1.6
1.2
0.8
0.4
Hg (l)
a
(b)
a
2
4
pH 6
8
10
12
Fig. 3a,b. Potential pH diagrams comparing leaching conditions for mercury: 5 mmolll in a pure
aqueous solution and b with addition of complexing agent: 1 moll I NaC!. Hatching indicates areas
where soluble species predominate
445
1.2
HgO
- -
0.8
- - - - -
0.4
Hg (l)
a a
2
4
6
8
10
12
(a)
pH
Eh/V
1.6
1.2
0.8
0.4
Hg (l)
a
(b)
a
2
4
pH 6
8
10
12
Fig. 3a,b. Potential pH diagrams comparing leaching conditions for mercury: 5 mmolll in a pure
aqueous solution and b with addition of complexing agent: 1 moll I NaC!. Hatching indicates areas
where soluble species predominate