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电絮凝-超滤组合技术处理含铜废水 被引量:6

Removal of copper from wastewater by hybrid electrocoagulation and ultrafiltration processes
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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.
出处 《环境工程学报》 CAS CSCD 北大核心 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)
关键词 电絮凝 超滤膜 膜污染 electrocoagulation uhrafiltration copper membrane fouling
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