摘要
采用淡水室填充阳离子交换树脂的电去离子(EDI)膜堆来处理低浓度含镍废水,考察了该EDI膜堆用于低浓度重金属废水处理的可行性,并探讨了膜堆电压和料液流量对EDI分离重金属离子性能的影响。结果表明,对于Ni2+浓度为50 mg/L,pH为4.5的料液工况,操作电压为25 V,料液处理量为20 L/h时,可保证淡水产水Ni2+浓度在2 mg/L以下,且浓缩水Ni2+浓度大于900 mg/L,电流效率达到24.2%。
Study on the feasibility of electrodeionization （EDI） device,whose dilute depart ments were filled with cation exchange resins and feed water was low concentration Ni2＋solu tion,for the treatment of low concentration heavy metal wastewater. The effects of operating voltage and dilute flow flux on the separation performances EDI processes were investigated. With the feed solution whose Ni2＋concentration was 50 mg/L and pH was 4.5,the results show that the out dilute Ni2＋concentration was lower than 2 mg/L and the Ni2＋concentration of out concentrate could higher than 900 mg/L when operating voltage was 25 V and dilute flow flux was 20 L/h.
出处
《中国工程科学》
北大核心
2014年第7期62-67,共6页
Strategic Study of CAE
基金
科技部科技型中小企业技术创新基金(12C26213302815)
