JIANG Bao-jun,LIU Zhuo-yi,GUO Hao-cheng,et al.Combined Oxidation Efficiency of Landfill Leachate by TiO2, Cu2O and Graphene Oxide[J].China Water & Wastewater,2021,37(5 5):86-90.
Combined Oxidation Efficiency of Landfill Leachate by TiO2, Cu2O and Graphene Oxide
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
5 5
Page:
86-90
Column:
Date of publication:
2021-03-01
- Keywords:
- landfill leachate; TiO2; Cu2O; graphene oxide; catalytic oxidation
- Abstract:
- In view of the complex composition of pollutants in landfill leachate, three composite catalysts including TiO2/graphene oxide (GO), Cu2O/GO and TiO2/Cu2O were used for catalytic oxidation of raw landfill leachate under natural light conditions. Among the three kinds of composite catalysts, the TiO2/GO composite catalyst had the best treatment effect on organic matters in landfill leachate. The optimum dosage of catalyst was obtained when mass ratio of catalyst and leachate COD was 0.7, and the best reaction time was 2 h. Under the optimum experimental conditions, the removal efficiency of COD reached 92.57% after catalytic oxidation of the raw landfill leachate. At this time, concentrations of COD and NH4+-N in the effluent were 964.79 mg/L and 2 015.84 mg/L, and the BOD5/COD value reached 0.83.
Last Update:
2021-03-01