Air Pollution Control Equipment Services, Emissions

Scrubbers reducing emissions at coal-fired plant

16 November 2009– Detroit Edison’s 3,000 MW Monroe Power Plant has begun operating two flue gas desulfurization (FGD) systems. The first was activated in June and the second began Nov. 16.

Detroit Edison said sulfur dioxide (SO2) emissions are reduced by 97 percent and mercury emissions are reduced 80 to 90 percent from the coal-fired plant’s Unit 3. Similar reductions were seen on Unit 4 when the first FGD began operations.

In addition to the scrubbers, selective catalytic reduction (SCR) technology was installed on three of the plant’s generating units. The SCR’s reportedly cut nitrogen oxide (NOx) emissions by 90 percent.

Work is under way for construction of the third and fourth scrubbers and the fourth SCR at the plant. Some of the site work is expected to begin next year.
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