摘要
分别用3种不同材料电极（不锈钢、Ti／Pt和Ti／RuO2-IrO2）作阳极、石墨电极作阴极在同一条件下分别对循环式准好氧填埋垃圾场渗滤液进行电解处理对比研究。研究结果表明，随着电解时间的变化，渗滤液中的COD、BOD5、BOD5／COD、重金属离子浓度、色度和pH值均会发生改变。当电解时间为10—20min时，用上述3种电极作阳极电解均会出现渗滤液COD、BOD5、BOD5／COD增大的现象；当电解时间为30—40min时，用Ti／RuO2-IrO2或Ti／Pt电极作阳极电解均可使渗滤液的色度降为0；当电解时间为120min时，分别用3种电极作阳极电解都可使渗滤液中的COD、BOD5和重金属得到有效的去除，其中用Ti／RuO2-IrO2电极作阳极电解对COD、BOD5的去除效果最好：用Ti／Pt电极作阳极电解对Pb^2＋的去除效果最好。
This paper compared the electrochemical treatment result for recycling semi-aerobic landfill leachate by using respectively Ti/RuO2-IrO2, Fe and Ti/Pt as anodes, graphite as cathode. The result showed that ： the COD,BOD5 BOD5/COD,metal ion, pH, color of the leachate changed with the electrolysis time. If the electrolysis time is 10 -20 minutes,the COD,BOD5, BOD5/COD will increase when use above three electrodes as anodes;If the electrolysis time is 30 - 40 minutes, the color of the leachate can decrease to 0 when use Ti/RuO2- IrO2 or Ti/Pt ;If the electrolysis time is 120 minutes, the COD, BOD5,BOD5/COD ,metal ion of the leachate can be removed effectively when use above three electrodes as anodes respectively. The removal efficiency of Pb^2＋ is highest when use Ti/Pt. The removal efficiency of COD and BOD5 is highest when use Ti/RuO2-IrO2.
出处
《环境污染治理技术与设备》
CAS
CSCD
北大核心
2006年第7期53-57,共5页
Techniques and Equipment for Environmental Pollution Control
基金
四川省教育厅资助自然科学研究项目资助(2004B009)
关键词
循环式准好氧填埋
渗滤液
电极材料
影响
recycling semi-aerobic landfill
leachate
electrode material
effect
