Cu_2O/氧化石墨烯催化氧化垃圾渗滤液的因素分析

Influencing Factors of Catalytic Oxidation of Landfill Leachate by Cu_2O/Graphene Oxide

采用Cu_2O、氧化石墨烯、Cu_2O/氧化石墨烯复合催化剂处理垃圾渗滤液,分析催化剂种类、投加量、反应时间对处理效果的影响。试验结果表明,Cu_2O/氧化石墨烯复合催化剂处理垃圾渗滤液的效果最好,最佳试验条件为复合催化剂质量∶渗滤液COD质量=0.7,反应时间为1h。在最佳试验条件下,处理后的垃圾渗滤液的NH_4^+-N浓度达到2 454 mg/L,对COD的去除率可达93.33%,BOD_5/COD值为0.84。

Cu2O, graphene oxide and composite catalytic oxidant were used to treat landfill leachate, and the influences of catalyst type, dosage of catalyst and reaction time on the treatment effect were analyzed. The results showed that the best effect of catalytic oxidation of landfill leachate was achieved by Cu2O/graphene oxide composite catalyst, and the optimal experiment condition was mass ratio of catalyst to leaehate COD = 0.7 and the reaction time of 1 h. Under the optimal reaction condition, NH4＋ -N concentration of the effluent reached 2 454 mg/L, and the removal rate of COD and BOD5/ COD were up to 93.33% and 0.84 respectively.