processes have significant disadvantages such as incomplete metal
removal particularly at low concentrations, low thermal and radiological
stability of materials, production of large quantities of solid
sludge for disposal and high requirements of energy and reagents.
Of the conventional treatment technologies, adsorption is considered
the most practical and economical method for wastewaters
decontamination. This process is based on the binding of metal
ions by the various functional groups on the adsorbent