After biosorption, biosorbents were separated from the solution
by passing through a Watman 0.45 µm GF/C filter and the filtrate
was subjected to residual cadmium concentration determination.
The residual concentrations of the cadmium ions were analyzed
by flame atomic absorption spectrophotometer (Perkin Elmer
AAnalyst 200).
The percent removal of cadmium ion by banana peel material
was calculated using the equation:
% R = (C0- Ce)*100/C0 (1)
Where;
R = cadmium ion removal
C0 = initial cadmium ion concentration cadmium in solution used
(mg/l);
Ce = cadmium ion concentration in solution at equilibrium (mg/l)