Annular slurry reactor (ASR) for photodegradation of commercial pesticides was tested.
Different AOPs were investigated in the presence of UVA and visible light irradiation.
7.2Fe/TiO2/H2O2 system using both type of irradiation was the most efficient.
ASR design showed the highest photodegradation efficiency for pesticide removal.
For ZnO/H2O2 system general reaction mechanism was assumed.