Using Modified Fly Ash for Removal of Heavy Metal Ions from Aqueous Solution

Table 2

Weight percent of elements in FA0, FAN, and modified FAN particles.

Element	Sample
	FA0	FAN	FASDS	FAMBT
C	28.10	26.49	26.94	17.89
O	44.35	48.40	47.61	49.62
Al	7.56	8.32	7.87	11.80
Si	10.65	11.42	12.07	14.93
Na	—	1.08	0.99	0.92
K	1.71	1.57	1.56	1.96
Fe	2.48	1.84	2.09	1.97
Mg	1.55	0.31	0.33	0.27
Ca	0.25	0.28	0.27	0.31
N	3.01	—	—	—
Ba	0.33	—	—	—
Ti	—	0.28	0.28	0.34
Total	100	100	100	100