Extraction of Phosphate from Polluted Waters Using Calcium Alginate Beads Doped with Active Carbon Derived from A. aspera Plant as Adsorbent

Table 4

Applications: extraction of phosphate ions from samples collected from polluted waters using method developed in this work.

S. number	Samples collected at different places	(mg/L); (concentration of phosphate in the sample)	(mg/L); (concentration of phosphate remaining after removal)	% of maximum extraction of phosphate
1	Sample 1	21.5	0.5	97.6
2	Sample 2	25.5	1.5	94.1
3	Sample 3	29.5	2.7	90.8