Degradation of aromatic nitro-compound by photocatalytic-Fenton-like reaction

Industrial wastewater with aromatic nitro-compound has high toxic effects and physiological toxicity. Simplex biochemical treatment technology is impossible to completely achieve degradation of the aromatic nitro-compound, and the application cost of only Fenton reagent is too high, therefore, the wastewater treatment technology by combination of biochemical method and Fenton reagent has drawn more and more attention in recent years. Fenton-like can maintain a suitable neural or mild alkali operating environment for the degradation of aromatic nitro-compound, and combination with UV light and Fenton's reagent can create a synergistic effect. Meanwhile, photocatalytic can produce hydrogen peroxide, which can avoid not only the excessive consumption of hydrogen peroxide, but also the impact of the residual hydrogen peroxide on coupling biochemical system. For this reason, the united technology of Photo-Fenton-like and photochemical catalysis, which can produce hydrogen peroxide, can be expected to create a low-cost degradation of aromatic nitro-compound by coupling of Fenton and biochemical processes.