Hjörleifur Guttormsson 10 February 2004
Alcoa and the Icelandic Government
|
Comparison of emissions from the Norsk Hydro aluminium smelter (420 thousand tonnes annually), with and without |
||||||||||
an anode plant, and the Alcoa aluminium smelter (322 thousand tonnes annually) |
||||||||||
|
|
|
|
|
|
|
|
|
||
Emissions annually (tonnes) |
||||||||||
|
HF |
Particulate fluoride |
SO2 |
PAH |
Particulates |
C02- x1000 |
PFC as CO2 equivalents x 1000 |
NOx |
||
Norsk Hydro smelter |
54.6 |
50.4 |
190 |
0.022 |
25.6 |
626.1 |
58 |
13 |
||
N. Hydro electrode plant |
0.4 |
0.43 |
638 |
1.95 |
3.7 |
84 |
- |
120 |
||
Total Norsk Hydro |
55 |
50.83 |
828 |
1.972 |
29.3 |
710.1 |
58 |
133 |
||
Alcoa smelter |
78.8 |
27.5 |
3864 |
0.167 |
38.4 |
530.5 |
34.42 |
27 |
||
|
|
|
|
|
|
|
|
|
||
Smelter Emissions per tonne of aluminium produced |
||||||||||
|
HF |
Particulate fluoride |
SO2 |
PAH |
Particulates |
C02 |
PFC - CO2 equivalents |
NOx |
||
|
g |
g |
kg |
g |
g |
tonnes |
kg |
g |
||
Norsk Hydro smelter |
130 |
120 |
0.45 |
0.05 |
61 |
1.49 |
138 |
31 |
||
Alcoa smelter |
245 |
85 |
12 |
0.52 |
119 |
1.65 |
107 |
84 |
||
Notes:
HF = hydrogen fluoride, SO2 = sulphur dioxide, PAH = polycyclic aromatic hydrocarbons, CO2 = carbon dioxide, PFC = perfluorcarbons, NOx = Nitrogen oxides
[Enclosures: (Legal Case and Comparision of Alcoa and Norsk Hydro smelters, only available in Icelandic)]
……………………….