微电极耦合MBR处理垃圾渗滤液  

Treatment of Landfill Leachate by Coupled Process of MBR and Microelectrode

作　　者：章茹[1,2] 曹济[2] 冯斐[1,2] 

机构地区：[1]南昌大学鄱阳湖环境与资源利用教育部重点实验室,江西南昌330031 [2]南昌大学环境与化学工程学院,江西南昌330031

出　　处：《南昌大学学报（工科版）》2013年第2期107-111,共5页Journal of Nanchang University(Engineering & Technology)

基　　金：江西省博士后择优项目(13006439)

摘　　要：针对垃圾渗滤液难降解、高氨氮和高CODCr的特点,提出了微电极与MBR联合工艺对其进行降解。实验探讨了电流密度、极板间距、氯离子质量浓度和停留时间等4个主要参数对CODCr和氨氮去除率的影响。利用De-sign-Expert.V8.0.6.1软件设计响应面实验确定最佳工艺条件:电流密度13 mA.cm-2、极板间距10 cm、氯离子质量浓度4 200 mg.L-1、停留时间10 h。在此条件下CODCr去除率89.56%,氨氮去除率92.29%,且出水氨氮和CODCr都达到垃圾渗滤液处理排放标准。This paper proposed microelectrode and MBR combined process to the degradation of the landfill leachate for its characteristics of recalcitrance,high ammonia nitrogen and high CODCr.In the experiment,the influence of four main parameters of current density,distance between plates,concentration of chloride ion and residence time to the removal rate of CODCr and ammonia nitrogen were probed.The Design-Expert-V8.0.6.1 was used to design response surface for determination the optimum conditions：current density 13 mA·cm-2,the distance between plates 10 cm,concentration of chlorine ion 4 200 mg·L-1 and reaction residence time 10 h.Under these conditions,the removal rate of CODCr reached 89.56%,and the removal rate of ammonia nitrogen reached 92.29%,and the effluent ammonia and CODCr achieve landfill leachate treatment discharge standards.

关 键 词：微电极 MBR工艺 垃圾渗滤液 响应面法 

分 类 号：X703[环境科学与工程—环境工程]