Study on Sono-photocatalytic Degradation of Chlorobenzene in Wastewater

Chlorobenzene(CB), one of the persistent organic pollutants (POPs), is a refractory semivolation organic compound and non-biodegradable. Treatment of CB contaminated wastewater by traditional method is essentially impossible. In the study, the sono-photocatalytic degradation of CB was examined in aqueous suspension using the TiO₂ as photo catalyst. Some factors affecting the degradation rate of CB were also studied. The results indicated the chlorobenzene underwent a fast degradation. In the process, the pH value of the dispersion had little effect on the degradation rate of CB, while the amount of TiO₂, initial concentration of CB and H₂O₂ affected it greatly.