电絮凝技术处理洗车废水试验  

Treatment of Vehicle-washing Wastewater by Electro-coagulation Process

作　　者：储金宇[1] 李玉蓉[1] 李宁[1] 杜彦生[1] 

机构地区：[1]江苏大学环境学院,城市水资源与水环境国家重点实验室江苏大学研究中心,江苏镇江212013

出　　处：《工业安全与环保》2012年第5期18-20,30,共4页Industrial Safety and Environmental Protection

基　　金：江苏省成果产业化推进项目(JH07-025)

摘　　要：采用电絮凝技术处理洗车废水,以保证处理后出水能够循环利用。考察电流密度、初始pH值、NaCl浓度及电解时间等操作因素对COD与浊度去除效果的影响。结果表明,在最佳处理条件下,出水达到生活杂用水水质标准;另外,去除COD过程符合一级动力学模型,去除单位浓度COD产生4.02×10-3kg湿污泥、3.10×10-4kg干污泥。Electro - coagulation process is adopted to treat vehicle - washing wastewater for reuse. The effects of parameters （such as current density, initial pH, electrolyte NaC1 concentration, electrolysis time, and so on） on the removal efficiency of COD and turbidity in the wastewater are studied. The result shows treated water could meet Water Quality Standard for Urban Water Consumption under these optimal conditions. Furthermore, the kinetic model for COD reduction agrees with first- order reaction kinetic model. Removing 1 mg/L COD could produce 4.02×10-3 kg wet sludge and 3.10×10-4 kg dry sludge.

关 键 词：洗车废水 电絮凝 回用 动力学模型 污泥量 

分 类 号：X703[环境科学与工程—环境工程]