Latest News > Word of the Week: Flue-Gas Desulfurization (FGD)

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Word of the Week: Flue-Gas Desulfurization (FGD)

Flue-gas desulfurization is an environmental control technology installed in the smokestacks of coal-fired power plants designed to remove pollutants from the air.  These controls are also called “scrubbers”.  Once the scrubbers are full of sulfur dioxide, they are often used to create synthetic gypsum.  FGD gypsum can be used in drywall, but also in concrete and other applications where mined gypsum can be used.  FGD can contain heavy metals such as mercury that can be released into the air when it is incorporated into these products.