Research Article
Removal of High-Concentration Sulfate Ions from the Sodium Alkali FGD Wastewater Using Ettringite Precipitation Method: Factor Assessment, Feasibility, and Prospect
Figure 8
The effect of NO3− concentration. Vsolution = 1 L, n (Ca : Al : S) = 4 : 1 : 1, = 200 r/min, t = 30 min, T = 25°C, and pH = 7.0.