Research Article

Biosorption of Fe(II) and Mn(II) Ions from Aqueous Solution by Rice Husk Ash

Table 1

XRF analysis on the RHA before and after adsorption of Fe(II) and Mn(II) (%).

ElementUnloaded biomassFe(II)-loaded biomassMn(II)-loaded biomass

O26.65024.53024.183
Na0.040
Mg0.3010.0900.057
Al0.1320.0140.012
Si29.43327.53827.276
P0.5110.0540.054
S0.1020.1540.069
Cl0.1900.3420.097
K2.1230.3380.290
Ca0.9420.0610.048
Mn0.1830.1870.293
Zn0.0110.0020.003
Fe0.1750.013
Cu0.0030.004