| |
2009 |
2008 |
2007 |
| Material used, tonnes |
|
|
|
| Recycled steel |
1 131 144 |
1 367 858 |
1 480 332 |
| Recovered metals |
45 513 |
97 463 |
105 480 |
| Ferrochrome |
168 600 |
265 412 |
282 001 |
| Nickel alloys |
63 837 |
100 654 |
105 697 |
| Other alloys |
63 272 |
86 564 |
100 274 |
| |
|
|
|
| Additives, tonnes |
|
|
|
| Slag formers |
191 190 |
227 302 |
237 454 |
| Melt shop process gases |
155 978 |
179 851 |
181 048 |
| Pickling acids bought |
10 106 |
13 220 |
11 322 |
| Pollution prevention materials |
25 715 |
27 216 |
17 365 |
| Packaging materials used for final products |
10 876 |
14 885 |
11 797 |
| |
|
|
|
| Energy, million GJ |
|
|
|
| Electricity |
7.4 |
9.9 |
10.5 |
| Propane |
3.7 |
4.5 |
4.4 |
| Carbon monoxide gas |
0.7 |
1.4 |
1.7 |
| Natural gas |
0.5 |
0.7 |
0.6 |
| Light and heavy fuel oil |
0.7 |
0.8 |
1.4 |
| |
|
|
|
| Output, tonnes |
|
|
|
| Steel slabs, billets |
1 245 532 |
1 650 068 |
1 718 704 |
| |
|
|
|
| Emissions to air, tonnes |
|
|
|
| Carbon dioxide |
568 000 |
871 000 |
932 000 |
| Nitrogen oxides |
1 207 |
1 925 |
1 653 |
| Sulphur oxides |
179 |
277 |
451 |
| Dust |
134 |
216 |
265 |
| Ozone-depleting substances |
0 |
19 |
20 |
| |
|
|
|
| Emissions to water, tonnes |
|
|
|
| Metals (Cr, Ni, Mo, Zn) |
14.9 |
15.5 |
17.2 |
| Nitrates |
438 |
578 |
575 |
| |
|
|
|
| Hazardous waste, tonnes |
|
|
|
| Oily sludge to the treatment |
5 907 |
4 978 |
4 834 |
| Hydroxide sludge landfilled |
38 444 |
49 646 |
44 967 |
| Steel making dust to recovery |
25 265 |
37 240 |
39 000 |
| |
|
|
|
| Waste and by-products, tonnes |
|
|
|
| Slag, total |
324 832 |
593 777 |
547 620 |
| Slag utilised |
185 576 |
443 517 |
220 000 |
