DSA电极处理垃圾渗滤液中污染物的研究  

Application of DSA electrode for treatment of pollutants in Landfill Leachate

作　　者：伍海辉 吴优 陈永恒 张欢欢 WU Haihui;WU You;Chen Yongheng;ZHANG Huanhuan(Shanghai Institute of Technology,Shanghai,China)

机构地区：[1]上海应用技术大学,上海201418

出　　处：《环境保护科学》2023年第4期93-97,共5页Environmental Protection Science

摘　　要：以垃圾渗滤液作为研究对象,使用自制的Ti-Ta_(2)O_(5)-SiO_(2)电极应用于电絮凝处理垃圾渗滤液中,探究其对总磷(TP)和悬浮物(SS)的去除效果。研究表明,在25 mA/cm^(2)和弱碱条件下,电絮凝处理垃圾渗滤液具有更高的处理效率;分别在稀释10倍原水和极板间距为4 cm时的各污染物去除率最高。当电流密度为25 mA/cm^(2),pH为9,极板间距为4 cm,原水稀释十倍后,经过电絮凝处理6 h后,总磷(TP)和悬浮物(SS)的去除率可分别达到99.6%和82.74%。该研究提供了一种电催化活性较高的新型钛基金属氧化物的电极,为电絮凝技术应用于垃圾渗滤液处理具有一定的指导意义。Taking landfill leachate as the research object,the self-made Ti-Ta_(2)O_(5)-SiO_(2) electrode was applied to the electro-flocculation treatment of landfill leachate to explore its removal effect on total phosphorus and suspended solids.The results showed that under the condition of 25 mA/cm^(2) and weak alkali,electrocoagulation had a higher treatment efficiency.When the raw water was diluted 10 times and the distance between plates was 4 cm,the removal rate of pollutants was the highest.When the current density was 25 mA/cm^(2),the pH was 9,the distance between plates was 4 cm,the raw water was diluted 10 times,and after electro-flocculation treatment for 6h,the removal rates of total phosphorus and suspended solids could reach 99.6% and 82.74%,respectively.A new type of titanium oxide electrode with a high electrocatalytic activity was provided,which had a certain guiding significance for the application of electrocoagulation technology in landfill leachate treatment.

关 键 词：垃圾渗滤液 DSA电极 电絮凝 总磷 悬浮物 

分 类 号：X523[环境科学与工程—环境工程]