催化臭氧-Fenton氧化工艺处理垃圾渗滤液研究与应用  

APPLICATION RESEARCH ON CATALYTIC OZONE-FENTON OXIDATION PROCESSES TO TREAT LANDFILL LEACHATE

作　　者：马兴冠[1] 贺一达 高强[2] 王磊[3] 张荣新[1] 傅金祥[1] 

机构地区：[1]沈阳建筑大学辽河流域水污染防治研究所,110168 [2]沈阳建筑大学管理学院,110168 [3]沈阳市环境监测中心站,辽宁沈阳110016

出　　处：《水处理技术》2015年第5期93-97,共5页Technology of Water Treatment

基　　金：辽河流域水污染治理技术评估及长效运行机制(2012ZX07505-002-002)

摘　　要：通过研究催化臭氧-Fenton氧化工艺各因素变量对垃圾渗滤液中难降解有机物处理效果的影响,确定整体工艺的优化运行工况条件,以达到最佳处理效果;同时模拟工程应用,对工艺处理预期效果及经济做以分析。实验结果表明,在室温、p H为3、臭氧的质量流量为5.2 mg/min、催化剂投加量为150 g/L、反应时间为120 min的条件下,COD去除率可达81.74%,预处理效果最佳。在p H为2、H2O2投加量为2.40 g/L、Fe SO4·7H2O投加量为3.94 g/L、Fenton反应时间为2 h的条件下,COD去除率达86.51%,处理效果为佳。整体工艺COD去除率可达97.54%,出水水质达到GB 16889-2008排放标准。工程预期处理效果较好,总处理成本6.90元/t。The effects of ozone pretreatment-Fenton catalytic oxidation method and parameter variables on the treatment of refractory organics in landfill leachate were studied. Simulating engineering applications, further analysis was done to determine the best conditions overall process parametcrs to achieve the best treatment effect and engineering economics. The results showed that under the conditions of room temperature, pH being 3, ozone mass flow rate being 5.2 mg/min, catalyst dosage being 150 g/L, the reaction time being 120 min, the COD removal rate reached 81.74%, which indicated best results ofpretreatment. Under the conditions ofpH being 2, H202 dosage being 2.40 g/L, dosage of FeSO4·7H2O dosage being 3.94 g/L, Fenton reaction time being 2 h, the COD removal rate reached 86.51%, achieving the best treatment efficiency. Water quality met the discharge standard of the GB 16889-2008. Engineering expected processing effect was good, and treatment cost was 6.90 yuan/t.

关 键 词：垃圾渗滤液 催化臭氧氧化 预处理 FENTON氧化 工程应用 

分 类 号：TQ031.7[化学工程] X703.1[环境科学与工程—环境工程]