电解法处理电镀含镍浓缩废液的试验研究  

Experimental study on the treatment of highly concentrated electroplating nickel-containing waste liquid by electrolytic method

作　　者：熊正为[1] 陈齐玮 王劲松[1] 张炜铭[2] 虢清伟[3] 朱雷[4] 

机构地区：[1]南华大学土木工程学院,湖南衡阳421001 [2]南京大学环境学院,江苏南京210046 [3]环境保护部华南环境科学研究所,广东广州510655 [4]湖南大学土木工程学院,湖南长沙410000

出　　处：《工业水处理》2017年第8期70-73,104,共5页Industrial Water Treatment

基　　金：国家科技重大专项项目(2012ZX07206-003)

摘　　要：以电解法处理含镍浓缩液并回收镍,考察了电流强度、镍离子浓度、温度、pH和缓冲溶液对镍回收效果的影响。结果显示,以钌铱涂层钛板为阳极,在极距为20 mm、电流15 A、温度50℃、镍离子质量浓度为20 g/L并通气搅拌的条件下,镍回收率最高达到85.1%,相应的电流效率为51.8%。正交试验结果表明,镍回收率影响因素的大小顺序是电流>镍离子浓度>pH>温度。The concentrated nickel-containing solution has been treated by electrolytic method, and the nickel re- covered. The influences of current intensity, concentration of nickel ions, temperature, initial pH and buffer solu- tion on the recovery of nickel are investigated. The results show that under the following conditions ： using Ru-Ir coated titanium plate as anode, plate distance 20 mm, electric current 15 A, temperature 50 ℃, the initial mass concentration of nickel ions 20 g/L, and by aeration and agitation, the nickel recovery rate can be as high as 85.1%, and the corresponding current efficiency is 51.8%. The orthogonal experiments show that the sequence of influential factors on recovery rate is electric current 〉 concentration of nickel ion 〉 pH 〉 temperature.

关 键 词：电镀废水 镍 电解法 回收 

分 类 号：X703[环境科学与工程—环境工程]