The aim of the present study was to explore the feasibility
of using orange residues proceeding from the orange juice
and soft-drinks industries as an adsorbent for the removal of
cadmium. Orange waste contains cellulose, pectins, hemicellulose,
chlorophyll pigments and other low molecular weight
compounds, including limonene. Some authors have described
the functional carboxylic groups of the pectins and the alcoholic