Recycling one metric ton of gypsum will save 28 kwh of energy and 4 pounds of Al, 28/25 pounds of S, 800 kilograms of Pb, 7/5 metric tons of limestone, 2 kilograms of P, 3,479/4,100 pounds of Ca
Recycling one ton of gypsum saves 1,600 pounds of Pb, 7/5 tons of limestone, 4 pounds of P, 14,600 btus of energy