Sorption of Pb^𝟐+ from Aqueous Solution unto Modified Rice Husk: Isotherms Studies

Table 1

Some physicochemical parameters of the phosphoric acid modified rice husk (PRH).

Properties	PRH
pH	6.30–6.50
% Moisture content	12
% Loss of mass on ignition	0.9
Bulk density (g/cm^3)	0.386
Particle size	300 μm < Φ < 250 μm
Surface area (m^2/g)	198