Research On Catalytic Wet Peroxide Oxidation Degradation Of Organic Wastewater

Catalytic Wet Peroxide Oxidation （referred to CWPO） is a method which has the mildreaction conditions and good treatment effect. In this paper Fe₂O₃/γ-Al₂O₃catalyst wereprepared by impregnation,with Acid Orange52azo dye,anthraquinone dye Reactive BrilliantBlue KN-R as the goal degradation was investigated in catalytic wet hydrogen peroxidemethod （CWPO） of the catalytic activity.Using COD,TOC and colour removal as indicators,Fe₂O₃/γ-Al₂O₃degradation effect on the two kinds of dyes to explore the best reactionconditions.The results showed that though catalytic wet hydrogen peroxide degradated organicwastewater, Fe₂O₃/γ-Al₂O₃catalyst which achieved two kinds of dye wastewater degradationrate increased from26%to90%,increased the degradation effect greatly.It was found the bestconditions which dealed with the initial concentration of Reactive Brilliant Blue KN-R wastewater200mg/L:temperature150℃, pressure0.5MPa, H₂O₂33mg/L, pH6, reaction time1hour. on the optimum conditions, TOC, COD and colour removal rate reached95.6%,82.5%and99.8%respectively. Which dealed with the initial concentration of Acid orange52200mg/L:temperature175℃, pressure0.3MPa, H₂O₂66mg/L, pH7, reaction time2h.On thebest conditions, TOC, COD and colour removal rate reached94.4%,92.3%and99.7%respectively.The results showed that Fe₂O₃/γ-Al₂O₃was used for treatment of high concentrationorganic wastewater by catalytic wet hydrogen peroxide which has very good results.