Treatment of Cd²⁺ and Cu²⁺ Ions Using Modified Apatite Ore

Table 1

Composition of elements in apatite ore before and after modifying and the solid after filtering.

Element	Apatite ore		Modified apatite		Solid after filtering
	% m	% a	% m	% a	% m	% a
O	50.19	68.21	37.67	54.59	47.74	57.49
Ca	21.40	11.61	36.73	21.25	0.44	0.21
P	10.79	7.57	17.75	13.29	0.92	0.57
F	2.76	3.16	2.58	3.15	1.07	1.08
Si	5.35	4.14	0.42	0.35	33.65	23.09
Al	3.06	2.47	0.46	0.40	1.69	1.21
Mn	1.19	0.47			0.80	0.28
Mg	0.36	0.32	0.17	0.16	0.11	0.09
K	0.82	0.46			0.37	0.18
Fe	4.08	1.59	0.66	0.27	2.93	1.01
N					6.91	9.50
C			3.34	6.44	3.28	5.26
Cu			0.16	0.06	0.11	0.03
Cl			0.07	0.04