三维电极-电Fenton法处理垃圾渗滤液  

Treatment of Landfill Leachate by Three-Dimensional-Electrode Electro-Fenton Process

作　　者：石岩[1] 王启山[1] 岳琳[1] 何士忠[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071

出　　处：《天津大学学报》2009年第3期248-252,共5页Journal of Tianjin University(Science and Technology)

摘　　要：研究了以活性炭和涂膜炭为填充电极的三维电极-电Fenton法处理垃圾渗滤液的影响因素和处理效果.通过单因素试验确定的最佳电解条件为:电流密度57.1,mA/cm2,曝气量0.2,m3/h,Fe(Ⅱ)投加量1.0,mmol/L,初始pH为4.0.在此条件下电解180,min后,COD、氨氮和色度去除率分别达80.8%、55.2%和98.6%,BOD5/COD由0.125提高至0.486.由GC-MS分析结果可知,三维电极-电Fenton法对垃圾渗滤液中芳烃、烷烃、羧酸和酯类等有机物具有很好的降解效果,能有效处理垃圾渗滤液.Three-dimensional-electrode elcctro-Fenton reactor,which activates carbon and coated carbon as filled electrode, was employed to treat landfill leachate. Impact factors and treatment efficiency were studied. Experimental results showed that the optimal operating conditions were as follows ： cun＇ent density 57.1 mA/cm^2, airflow 0.2 m^3/h, dosage of Fe（ Ⅱ ） 1.0 mmol/L,initial pH 4.0. Under these conditions, the removal rates of COD, ammonia-nitrogen and TOC were up to 80.8%, 55.2% and 98.6 % ,and the value of BODJCOD was improved from 0.125 to 0.486 within 180 min of electrochemical oxidation. Analytical results of GC-MS indicate that the organic compounds such as aromatic hydrocarbon, alkane, carboxylic acid and ester are well degraded by three-dimensional-electrode electro-Fenton process which is proved to be an effective way to treat landfill leachate.

关 键 词：三维电极-电Fenton法 垃圾渗滤液 粒子电极 影响因素 GC-MS 

分 类 号：X703.1[环境科学与工程—环境工程]