电絮凝-超滤组合技术处理含铜废水  

Removal of copper from wastewater by hybrid electrocoagulation and ultrafiltration processes

作　　者：赵凯[1,2] 杨春风[2] 孙境求[1,3] 王云飞[1,2] 李静 胡承志[1] 

机构地区：[1]中国科学院饮用水科学与技术重点实验室中国科学院生态环境研究中心,北京100085 [2]河北工业大学土木与交通学院,天津300401 [3]中国科学院大学,北京100049

出　　处：《环境工程学报》2017年第6期3352-3356,共5页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51378490);国家水体污染控制与治理科技重大专项(2015ZX07402003-3)

摘　　要：采用电絮凝-超滤(electrocoagulation-ultrafiltration,EC-UF)组合技术对含铜废水中的铜离子进行了处理实验研究。讨论了电流密度、初始pH、初始铜浓度和初始电导率等因素对铜的去除效果和膜污染的影响,并分析了这些影响因素对EC-UF组合技术效率的作用机制。结果表明,在电流密度J=50 A·m^(-2)、初始铜浓度C(Cu^(2+_)≤40 mg·L^(-1)、初始pH=4~8、初始电导率σ=2 m S·cm^(-1)、电解时间20 min的条件下,废水中铜的去除率达到99.6%并有效的减缓了膜污染。本研究为EC-UF组合技术除铜的实践应用提供了科学依据。This study investigated the performance of copper removal from synthetic model wastewater by hybrid electroeoagulation and ultrafihration processes （EC-UF）. The effects of current density, initial pH, initial copper concentration, solution conductivity, and other factors on the removal of copper and membrane-fouling were stud- ied, and the influence mechanism of these factors on EC-UF efficiency was analyzed. The copper removal rate was found to reach 99.6% , and membrane-fouling was effectively alleviated at a current density of 50 A · m-2, initial C（Cu2＋） ≤40 mg · L-1, initial pH of 4 to 8, solution conductivity of 2 mS · cm- 1 , and electrolysis time of 20 min. These results provide a scientific basis for further research on EC-UF removal of copper ions.

关 键 词：电絮凝 超滤膜 铜 膜污染 

分 类 号：X703[环境科学与工程—环境工程]