HVPD + TiO2 was used to treat biotreated landfill leachate. Activity species such as H2O2 and OH were enhanced by HVPD + TiO2. Refractory organics were further removed with 58.9% of COD removal by HVPD + TiO2. Aromatic and fluorescence organic matters were effectively degraded by HVPD + TiO2.