bold spirit - ArcelorMittal South Africa
bold spirit - ArcelorMittal South Africa
bold spirit - ArcelorMittal South Africa
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76<br />
<strong>ArcelorMittal</strong> <strong>South</strong> <strong>Africa</strong><br />
Annual Report 2010<br />
Environmental performance continued<br />
SO 2<br />
emissions have dropped significantly when compared<br />
with 2009 figures, from 3.26kg/tonne of crude steel to<br />
2.66kg/tonne of crude steel – an 18% improvement.<br />
but rather to the fact that monitoring<br />
systems were expanded and<br />
improved. The Vereeniging Works EAF<br />
dust extraction system is working<br />
well. There are no visible emissions<br />
escaping through the roof and the<br />
dust capture rate from the meltshop<br />
activities has improved by 45% to the<br />
current 16.84kg/tonne of liquid steel,<br />
which can be regarded as an optimum<br />
of what can be achieved. Improved<br />
maintenance of coke batteries and<br />
dust extraction systems and greater<br />
vigilance have also helped to lower<br />
visible particulate emissions. Monthly<br />
reporting highlights any potential<br />
problems and we have focused on<br />
improving our response time for<br />
rectifying such issues. The coke<br />
batteries ceramic welding project,<br />
completed last year, has also helped to<br />
reduce particulate emissions.<br />
SO 2<br />
emissions<br />
Kg/t CS<br />
4.91<br />
4.32<br />
2.32<br />
Vanderbijlipark<br />
2008<br />
2009<br />
2010<br />
8.16<br />
2.44<br />
3.42<br />
at this operation by 46% during the<br />
year under review in specific terms<br />
– a significant achievement. There<br />
was a fairly significant increase in the<br />
emissions from our Newcastle Works<br />
facility, which can be attributed to<br />
improved monitoring and problems<br />
experienced with the sulphur<br />
SO 2<br />
particulate emissions<br />
3.52<br />
2.35<br />
2.84<br />
0.8<br />
0.12<br />
0.12<br />
5.22<br />
3.26<br />
2.66<br />
Newcastle Saldanha Vereeniging AMSA<br />
recovery unit at the coke batteries.<br />
The increase in specific SO 2<br />
emissions from our Saldanha Works<br />
facility can also be attributed to<br />
improved monitoring and the higher<br />
utilisation of the coal-based Corex<br />
furnace to produce liquid iron.<br />
SO 2<br />
emissions<br />
SO 2<br />
emissions have dropped<br />
significantly when compared<br />
with 2009 figures, from 3.26kg/<br />
tonne of crude steel to 2.66kg/<br />
tonne of crude steel – an 18%<br />
improvement for the <strong>South</strong> <strong>Africa</strong><br />
group as a whole. The Vanderbijlpark<br />
Works coke clean-gas project,<br />
R327 million, was commissioned<br />
during the year and has played a<br />
pivotal role in reducing SO 2<br />
emissions<br />
Kg/t CS<br />
1.39<br />
0.95<br />
0.988<br />
Vanderbijlipark<br />
2008<br />
2009<br />
2010<br />
0.66<br />
0.52<br />
0.66<br />
0.17<br />
0.22<br />
0.2<br />
0.48<br />
0.12<br />
0.12<br />
0.98<br />
0.68<br />
0.72<br />
Newcastle Saldanha Vereeniging AMSA