电絮凝强化陶瓷微滤膜出水水质研究  

Enhanced Effluent Quality of Ceramic Microfiltration Membrane Combined with Electrocoagulation

作　　者：周振[1] 姚吉伦[1] 庞治邦 刘波[1] 

机构地区：[1]后勤工程学院国家救灾应急装备工程技术研究中心,重庆401311

出　　处：《科学技术与工程》2016年第9期109-112,134,共5页Science Technology and Engineering

基　　金：国家科技支撑计划(2012BAK05B00)资助

摘　　要：为提高陶瓷微滤膜净化微污染水的效果,采用电絮凝预处理工艺提高陶瓷膜的出水水质。研究了电流密度、进水流量以及过滤模式对组合工艺出水水质的影响,得到了最佳运行参数:电流密度2.0 m A/cm2,进水流量4 L/min,过滤模式为错流过滤浓水全排除。同时,对比了化学絮凝和电絮凝对陶瓷微滤膜出水水质的影响,结果表明:电絮凝对有机物的去除效果不及化学絮凝,两者的差距随着Al3+浓度的增加而增大。In order to treat micro-polluted surface water more effective by using ceramic microfiltration membrane,electrocoagulation was employed to improve the effluent quality of ceramic membrane. Factors such as current density,influent flow and filtering mode that affected the effluent quality in hybrid process was studied. The optimized operating conditions were current density of 2. 0 m A / cm2,influent flow of 4 L/min and cross flow filtration with 100% excretion rate. At the same time,the comparison of ceramic microfiltration membrane performance with chemical-coagulation and electrocoagulation pretreatment were conducted. The results indicated that conventional chemical coagulation was superior to electrocoagulation in organic matter removal and the gap in it raised with the increasing of Al3 ＋concentration.

关 键 词：电絮凝 陶瓷微滤膜 化学絮凝 过滤模式 

分 类 号：X703[环境科学与工程—环境工程]