Removal of Phosphate from Aqueous Solutions Using Chemically Synthesized Vaterite Polymorph of Porous Calcium Carbonate Nanoparticles under Optimized Conditions

Table 6

Phosphate removal behavior of natural water samples with a pretreatment.

Sample name (4 locations)	Initial concentration of phosphate (mg/L)	Final concentration of phosphate (mg/L)	Removal (%)
Location 1	2.916	0.000	100%
Location 2	0.784	0.000	100%
Location 3	1.411	0.000	100%
Location 4	2.369	0.000	100%