3.1.3. Effect of shaking method and particle size on heavy metal
ion removal by MOSB
Fig. 3 shows that the general % removal of heavy metals in this
method followed the trend Pb(II) > Cu(II) > Cd(II) > Ni(II) > Mn(II).
For orbiter shaking, all the metals were better removed at
seed particle size of 106 m in the order Pb(II) > Cu(II) > Cd(II) >
Ni(II) > Mn(II). For 250 m, only Pb(II) and Cu(II) were better
removed with Pb(II) being removed more than Cu(II) whereas
Ni(II), Cd(II) and Mn(II) being the least removed metals. Also at
500 m, the percentage metal ion removal followed the order
Pb(II) > Cu(II) > Cd(II) while Ni(II) and Mn(II) metals had the least
% removal.
T