摘要
利用膜电解技术,分别采用硫酸铜、氢氧化钠、草酸和氨水作为阴极膜室电解质对含铜电镀废水进行废水中Cu2+的去除率和回收的实验研究。结果表明:以氨水为电解质,电解4h后,废水中Cu2+的去除率和质量浓度分别为90.72%和10.16mg/L,和其他电解质相比,具有去除效率高、反应时间短等特点。对于废水中Cu2+的回收,由于电解质的不同,回收方式也有差异。
An experimental study was performed on the removal rate and recovery of Cu^2＋ in electroplating wastewater containing Cu^2＋ by using membrane electrolytic technology with CuSO4, NaOH, oxalic acid and ammonia as electrolyte for cathode membrane chamber respectively. The results show that when ammonia is used as electrolyte, Cu^2＋ removal rate and concentration in the wastewater are 90. 72 % and 10. 16 mg/L respectively. Compared with other electrolytes, it has the features of higher removal rate and short reaction time, etc. The form of Cu^2＋ recovery is different when different electrolytes are used in recovering the Cu^2＋ in the wastewater.
出处
《电镀与环保》
CAS
CSCD
北大核心
2012年第2期37-39,共3页
Electroplating & Pollution Control
关键词
膜电解
含铜电镀废水
Cu2+的去除
Cu2+的回收
membrane electrolysis
electroplating wastewater containing Cu^2＋
Cu^2＋ removal
Cu^2＋ recovery
