摘要
本研究采用电絮凝技术预处理垃圾渗滤液,在以铁为阳极、不锈钢为阴极,极板距离1·5cm,电流密度50mA/cm2,不外加电解质的情况下,电解90min,渗滤液的CODCr去除率达到57·6%,NH4+去除率达40·1%,BOD5/CODCr比值由0·15提高到0·32,达到了较好的预处理效果。
A study of pretreatment of leachate by electro-coagulation method was carried out.Using Fe anode and stainless steel cathode,electrode spacing was 1.5 cm,current intensity was 50 mA/cm^2 and electrolytic time was 90 minutes without adding electrolyte.The removal rates of COD_ Cr and NH^+_4 reached 57.6% and 40.1% respectively,the BOD_5/COD_ Cr ratio was improved from 0.15 to 0.32.So this method reached a good pretreatment effect.
出处
《环境工程》
CAS
CSCD
北大核心
2006年第5期29-30,37,共3页
Environmental Engineering
基金
国家自然科学基金项目(50478006)
关键词
渗滤液
预处理
电絮凝
可生化性
leachate,pretreat,eletro-coagulation and biochemical degradability
