离子交换膜电解回收含镍废水中镍的研究  

Study on ion exchange membrane electrolytic recovery of nickel from nickel-containing wastewater

作　　者：周键[1,2] 王三反[1,2] 张学敏[1,2] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]寒旱地区水资源综合利用教育部工程中心,甘肃兰州730070

出　　处：《工业水处理》2015年第1期22-25,共4页Industrial Water Treatment

基　　金：国家科技支撑计划课题(2012BAF03B06)

摘　　要：采用双膜三室电解法处理含镍废水,阴极电沉积金属镍,同时可得副产品盐酸,并研究各因素对电解过程的影响规律。结果表明:在电流密度为60 A/m2,p H为4,温度为40℃,Ti/Ir Ta作为阳极,电解时间为4 h条件下,镍回收率可达82.3%,电流效率高达85.3%,中隔室盐酸浓度为0.5 mol/L,处理后出水经离子交换富集循环使用。The nickel-containing wastewater has been treated by double-membrane＆amp;three-room electrolysis process. Metal nickel can be electrodeposited on the cathode,and by-product,hydrochloric,can be obtained. In addition,the influence rules of factors on the electrolysis process have been studied. When the experimental conditions are as follow：current density is 60 A/m^2,pH=4,temperature 40℃,Ti/IrTa as anode,and electrolytic time 4 h,the nickel recovery rate can reach 82.3%,the current efficiency is as high as 85.3%,and the concentration of hydrochloric 0.4 mol/L in the middle compartment,the treated effluent,through ion exchange enrichment,can be used circularly.

关 键 词：含镍废水 膜电解法 回收镍 电流效率 

分 类 号：TQ028.8[化学工程]