The photocatalytic activity of Mn doped TiO2 for the ozonation of tetradifon pesticide in aqueous solution was studied. Various loadings of catalysts Mn/TiO2 (1%, 2.5% and 5%) was prepared and characterized by standard analytical techniques. Photocatalyzed ozonation with 2.5% Mn/TiO2 yielded 100% degradation and mineralization of tetradifon in 2.0 h under basic pH conditions. The extent of degr...

In this study, the catalytic ozonation of pentachlorophenol (PCP) in presence aluminum oxide (Al2O3) and formation byproducts during ozonationhas been studied. Results showed that Al2O3 can substantially enhance PCP degradation efficiency compared with using only process. The influences severalenvironmental parameters including pH solution, initial concentration, dosage dissolved ozone concentr...

Using microbubble ozonation (MO) technique to disintegrate sludge is a promising treatment process. To enhance the lysis and reduction of sludge, catalytic consisting MO sewage derived char (SC) were combined. Total solids (TS), volatile (VS), total nitrogen phosphate (TN TP) selected as main parameters for evaluating performance both in supernatant. With utilization MO, ozone largely improved....

We report the effects of actinic illumination on the heterogeneous ozonation kinetics of solid pyrene films and pyrene adsorbed at air-octanol and air-aqueous interfaces. Upon illumination, the ozonation of solid pyrene films and pyrene at the air-aqueous interface proceeds more quickly than in darkness; no such enhancement is observed for pyrene at the air-octanol interface. Under dark conditi...