摘要
用自制负载型CuO-CeO2/γ-Al2O3粒子和活性炭颗粒作混合填料,利用三维电化学体系处理垃圾渗滤液。考察了槽电压、pH、气体流量和极间距等因素对渗滤液降解的影响。结果表明,该体系对渗滤液具有较好的催化降解效果。当槽电压为15.0V、pH为中性、气体流量为0.08m3/h、极间距为3.0cm时,垃圾渗滤液COD和NH3-N的去除率分别达到92.9%和94.7%。采用紫外-可见光谱对反应中间产物进行定性分析,探讨体系电催化氧化反应机理。
The electrochemical oxidation of landfill leachate was studied in a batch electrochemical reactor. A three-dimensional electrode system for electrochemical oxidation was developed in which Cu-Ce complex metal oxides supported on γ-Al2O3 and granular activated carbon were packed between the main electrodes. The experimental results indicated that the reactor had positive effect on degradation of landfill leachate. The effect of cell voltage, pH, airflow and electrode span on the treatment of landfill leachate was elucidated. On the condition of applied voltage 15.0V, pH value 7.0, airflow 0.08mVh, electrode span 3.0cm, the removal efficiency of COD and NH3-N can reach 92.9% and 94.7%, respectively. The interim product was analyzed by means of UV-vis absorption spectrum, and degradation mechanism of electrocatalytic oxidation was discussed.
出处
《水处理技术》
CAS
CSCD
北大核心
2008年第4期65-68,共4页
Technology of Water Treatment
关键词
粒子电极
电催化氧化
废水处理
垃圾渗滤液
particle electrode
electrocatalytic oxidation
wastewater treatment
landfill leachate
