期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 137, 期 2, 页码 1197-1205出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2006.04.009
关键词
dairy wastewater; DC; electrocoagulation (EC); iron electrode; COD; oil and grease
The removal of COD and oil-grease from dairy wastewater was experimentally investigated using direct current (DC) electrocoagulation (EC). In the EC of dairy wastewater, the effects of initial pH, electrolysis time, initial concentration of COD, conductivity and current density were examined. The COD and oil-grease in the aqueous phase were effectively removed when iron was used as sacrificial anode. The optimum operating range for each operating variable was experimentally determined. The batch experimental results revealed that COD and oil-grease in aqueous phase was effectively removed. The overall COD and oil-grease removal efficiencies reached 98 and 99%, respectively. The optimum current density, pH and electrolysis time for 18,300 mg COD/L and 4570 mg oil-grease/L were 0.6 mA/cm(2), 7 and 1 min, respectively. Mean energy consumption was 0.003 kWh/kg of COD. (c) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据