摘要
采用强制性电解-絮凝的方法对铝粉废水进行预处理,结果表明预处理后废水的COD去除率达到60%。电解过程主要考察停留时间、pH和电压对电解效果的影响,絮凝主要考虑絮凝剂种类不同对预处理效果的影响,通过多组数据控制参数找出最佳运行参数。当电解时间为45 min时铝粉废水的BOD5/COD达0.46,此时废水便可以进入生化系统进行处理。
Aluminum powder wastewater was pretreated by mandatory electrolysis-flocculation method.After pretreatment,COD re-moval rate reached 60%.During electrolysis process,Effect of residence time,pH and voltage on electrolysis was investigated.During flocculation process,effect of different types of flocculants on pretreatment was discussed.At last,the best operating parameters were gained by experiments.
出处
《辽宁化工》
CAS
2010年第8期800-802,共3页
Liaoning Chemical Industry
关键词
电化学技术
絮凝
铝粉废水
可生化性
Electrochemical technology
Flocculation
Aluminum powder wastewater
Biodegradability
