Division 21

BAT for primary emissions from sinter strands is to prevent or reduce mercury emissions by selecting raw materials with a low mercury content (see BAT 7) or to treat waste gases in combination with activated carbon or activated lignite coke injection.

The BAT-associated emissions level for mercury is < 0,03 – 0,05 mg/Nm³, as the average over the sampling period (discontinuous measurement, spot samples for at least half an hour).