The Surface Parameters of a Natural Biosorbent: Giant Reed System

The surface layer parameters for bark-sodium nitrate solution systems were presented. The surface charge, the biosorption of proton, hydroxyl as a function of contact time, the ionic strength, the pH (initial and final) of the suspension medium-system, and the sorbent systems' concentration were presented. Through the use of pH variation resulting from protonation/deprotonation of the surface hydroxy groups <(>SOH)over bar>, the isoelectric point and the point of zero charges were determined. The surface charge (Q) of the electrical double layer was calculated. The ionization and complexation reactions were suggested to result in <(>(MOH, Cl-))over bar>, <(> MOH2+, Cl-)over bar> and <(> MOH, Na+)over bar> surface complexes.