Equilibrium, Kinetic, and Thermodynamic Studies on the Adsorption of Cadmium from Aqueous Solution by Modified Biomass Ash

Table 1

Elemental composition of biomass ash analyzed by ICP-OES.

Element	Si	Ca	K	Al	Fe	Mg	Na	P	S	Mn	Ni	Zn	Cu	Cr	Pb	Cd
Proportion (%)	12.04	4.31	3.31	2.11	1.08	0.65	0.42	0.41	0.073	0.034	0.018	0.015	0.0035	0.0022	0.0005	0.0002