Gypsum as an Agricultural Amendment: General Use Guidelines
gypsum from power plants. FGD gypsum represents a new and large volume source and is produced when coal is burned to produce electricity, heat, or other forms of energy (Figure 11). Figure 11. Flue gas desulfurization (FGD) product. is created by a scrubber that removes sulfur dioxide (SO₂) from the flue gas stream when energy sources containing high concentra tions of sulfur are burned ...