“…In literatures, it has been reported that the toxic nitro-aromatic pollutants could not be mineralized effectively by the conventional biological treatment processes because electron-withdrawing nitro group ( -NO 2 ) would inhibit the activity of electrophilic enzymes [5,6] . To mineralize these nitroaromatic compounds, many physico-chemical methods including combined ultrasound and Fenton (US-Fenton) process [1] , Electro-Fenton [7,8] , sonoelectroFenton oxidation [9] , absorption [10] , vacuum distillation [11] and * Corresponding author.…”