Study about Doping Ion La³⁺ onto Surface of Pyrolusite Ore for Removing Simultaneously Both Fluoride and Phosphate from Wastewater

Figure 6

Pseudo-second-order models of LDPO-G for fluoride and phosphate removal. (a) Removal of phosphate at 30, 50, and 100 mg/L. (b) Removal of fluoride at 10, 15, and 20 mg/L.

(a)

(b)