Contamination of water, soil and groundwater caused by aromatic compounds induces great concern in most world areas .Among organic pollutants, phenol is mostly considered dangerous due to its high toxicity for human and animal. Advanced oxidation processes (AOPs) is considered as a most efficient method also the best one for purifying organic compounds which are resistant to conventional physical and chemical processes. This experimental study was carried out in laboratory scale. First, a synthetic solution was made of phenol. Then, Fenton, Fenton-like and photo-Fenton processes were applied removing phenol from aquatic solution. The effects of Hydrogen Peroxide concentration, catalyst, pH and time were studied to phenol removal efficiency. Results showed that Photo-Fenton process with removal efficiency (97.5%) is more efficient than Fenton and Fenton-like processes with removal efficiency (78.7% and 82.5% respectively), in pH=3, [H2O2 ]= 3mM, [Fe2+]= 0.1 mM, phenol concentration 100 mg L-1 and time reaction 60 min, the phenol removal was 97.5%.
Mohamadreza Rezaee Mofrad, Maryam Emamgholi Nezhad, Hossein Akbari, Mahmood Atharizade and Mohammad Bagher Miranzadeh
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