Environmental Engineering Reference
In-Depth Information
J
J- Jarosite - XFe
3
(SO
4
)
2
(OH)
6
I - Iron Sulphate Hydrate- 2Fe
2
O
3
SO
3
5H
2
O
L- Lead sulphate -PbSO
4
IS-Iron sulphate -FeSO
4
IH-Iron hydroxide -Fe(OH)
3
C- Calcium sulphate -CaSO
4
C
I, L, C
J, IS
I, IS
IH, L
L, J
I
IH
(a)
Q - Quartz - SiO
2
M - Mullite - 3Al
2
O
3
Q
.
2SiO
2
H - Hematite - Fe
2
O
3
A - Amorphous (Glassy phase)
M
H
M
H
H
M
A
(b)
K
V - Vertumnite - Ca
4
Al
4
Si
4
O
6
(OH)
24
.3H
2
O
F - Ferroaetinolite (Calcium Iron Silicate hydroxide
- Ca
2
Fe
5
(Si
8
O
22
) (OH)
2
C - Cristobalite Quartz - SiO
2
K - Kaolinite - Al
2
O
3
, 2SiO
2
, 2H
2
O
K
C
F
C
K
F
V
V
C
V
K
(c)
Figure 6. Mineralogical phases in the (a) Jarosite waste, (b) CCRs and (c) Clay.
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