Using Gypsum to Help Reduce Phosphorus Runoff | USDA
In 2003, over 420,000 tons of synthetic gypsum from FGD systems was used at portland cement plants out of the nearly 12 million tons produced by the electric power industry [ACAA 2004]. In 2005, 20 portland cement plants were using FGD materials in the cements (as shown in figure 3). USE OF POWER PLANT BYPRODUCTS The Buzzi Unicem plant in