Increase
in percentage adsorbed
with increase
in adsorbent dosage between 1 g/L and 2 g/L may be as a result
of increase
in the available adsorption sites.
Only about 3% increase was observed as adsorbent dosage was increased from 1 g/L to 2 g/L, overlap of adsorption sites may account for the small increase in percentage adsorption.
However, saturation viz-à-viz aggregation on adsorption site results into equilibrium after 2 g/L dosage (Fig. 7).