Recent, widespread additions of scrubbers and selective catalytic reduction (SCR) systems at U.S. coal-fired power plants have significantly reduced concentrations of the pollutants SO 2 and NO x in ...
Flyash and condensed sulfur trioxide (SO 3) are the major components of flue gas that contribute to the opacity of a coal plant’s stack emissions (stack opacity). Estimates are that 75% to 85% of ...
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