摘要
采用铝电极对经生化处理的垃圾渗滤液进行电混凝深度处理。结果表明,在反应时间为45 min、电流密度为20 mA/cm2、极板间距为30 mm的最佳条件下,电混凝工艺对COD的去除率可达64%,对TP的去除率在90%以上,出水TP浓度可达到《生活垃圾填埋场污染控制标准》(GB 16889—2008)的要求,但出水COD和氨氮浓度都不能达标,还需增加后续处理工艺。
Landfill leachate pretreated by biochemical methods was treated by electrocoagulation using aluminum electrode. The results showed that under the optimal conditions of reaction time 45 rain, current density 20 mA/cm^2 and electrode distance 30 mm, the removal rates of COD and TP were 64% and more than 90% respectively. The effluent TP concentration met the Standard for Pollution Control on the Landfill Site for Domestic Waste （GB 16889 -2008 ）. Subsequent treatment processes were necessary because the effluent concentrations of COD and ammonia nitrogen did not meet the discharge standards.
出处
《中国给水排水》
CAS
CSCD
北大核心
2012年第17期99-101,共3页
China Water & Wastewater
基金
重庆大学研究生创新基金资助项目(CDJXS11210010)
重庆大学本科生创新基金资助项目(SRTP5605510)
关键词
电混凝
垃圾渗滤液
深度处理
electrocoagulation
landfill leachate
advanced treatment
