This may be explained by the unsaturation of biosorption sites,
particle interactions and less active sites at high biosorbent doses.
Bivalve shells were treated with Zea mays L. (maize) husk leaves and used for malachite green adsorption.
As the adsorbent dosage decreased,
the number of unsaturated adsorption sites decreased,
which resulted in a higher number of Malachite green ions adsorbed per unit surface area of adsorbent.
The removal percentages and biosorption capacities of the metal ions were at their maximum values at 2.5 mg biosorbent amount; hence,
this value was adopted in the other experiments. capacity