FGD-Gypsum Waste to Capture CO and to Recycle in Building Materials: Optimal Reaction Yield and Preliminary Mechanical Properties.

The use of waste to capture CO has been on the rise, to reduce costs and to improve the environmental footprint. Here, a flue gas desulfurization (FGD) gypsum waste is proposed, which allows us to obtain a CaCO-based solid, which should be recycled. The CO capture stage has primarily been carried out via the direct carbonation method or at high temperature.