Efficiency evaluation of thermal, ultrasound and solvent techniques in activated carbon regeneration.

The regeneration of diclofenac saturated activated carbon was studied and compared by thermal, solvent and ultrasound techniques in this work. Thermal regeneration was performed at 673 K in atmospheric air for one hour. Different proportions of solvents (ethanol, ethyl acetate and HO) were used to evaluate the regeneration of the sorbent solid.