Recovery and utilization of copper from electroplating wastewater with high concentration by membrane electrolysis

被引：0
|
作者：
Zhou J. [1 ,2 ]
Song X. [1 ,2 ]
Wang S. [1 ,2 ]
机构：
[1] School of Environment and Municipal Engineering, Lanzhou Jiaotong University, Gansu, Lanzhou
[2] Engineering Center of Water Resources Comprehensive Utilization, Ministry of Education, Gansu, Lanzhou
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / S2期
关键词：
copper recovery; current efficiency; electroplating wastewater; membrane electrolysis;
D O I：
10.16085/j.issn.1000-6613.2021-1006
中图分类号：
学科分类号：
摘要：
With the development of the electroplating industry, the pollution caused by electroplating wastewater discharge has been bothering us. Aiming to low pollution and recovery of high concentration copper-containing electroplating wastewater, a new process of single-membrane double-chamber membrane electrolysis was developed. In this experiment, the operation mode, recovery effect, and mechanism were studied, and the recovered products were characterized. An anion exchange membrane was placed between anode and cathode in an electrolytic cell. The effects of operating parameters such as initial Cu2+ concentration, current density, pH, plate spacing, temperature, and additives on copper's recovery rate and energy consumption were studied. Under the optimal conditions of Cu2+ initial concentration of 50g/L, cathode plate current density of 400A/m2, the temperature of 30℃, plate spacing of 30mm, cathode chamber pH=6, adding 2g/L ammonium nitrate, the measured copper recovery can reach more than 95%, the current efficiency of more than 70%, and reaction energy consumption of 5300 —5400kWh/t. At the same time, it is found that the copper recovered by electrolysis under the best technical conditions has small particles, uniform size, sharp angle, high purity and high economic value. © 2021, Chemical Industry Press Co., Ltd.. All rights reserved.
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页码：434 / 442
页数：8
相关论文
共 22 条
  • [1] VASKELIS A, NORKUS E, JACIAUSKIENE J., Kinetics of electroless copper deposition using cobalt(Ⅱ)-ethylenediamine complex compounds as reducing agents, Journal of Applied Electrochemistry, 32, 3, pp. 297-303, (2002)
  • [2] CUI Guofeng, LI Ning, LI Deyu, Applications and prospects of electroless Cu plating in microelectronic field, Electroplating & Pollution Control, 23, 5, pp. 5-7, (2003)
  • [3] XU H, LI Bo, WEI Yonggang, Et al., Extracting of copper from simulated leaching solution of copper-cadmium residues by cyclone electrowinning technology, Hydrometallurgy, 194, (2020)
  • [4] ZOU Yongbin, GONG Weihui, LI Hao, Et al., Research on electroplating wastewater treatment technology, Guangdong Chemical Industry, 41, 11, pp. 200-201, (2014)
  • [5] HU Xuewei, HU Yuanwei, CHEN Kai, Et al., Treatment of simulation of copper-containing pit wastewater with sulfate-reducing bacteria (SRB) in biofilm reactors, Environmental Earth Sciences, 75, 19, pp. 1-10, (2016)
  • [6] DONG Yue, LIU Junfeng, SUI Mingrui, Et al., A combined microbial desalination cell and electrodialysis system for copper-containing wastewater treatment and high-salinity-water desalination, Journal of Hazardous Materials, 321, pp. 307-315, (2017)
  • [7] LIU Xuheng, HE Yang, ZHAO Zhongwei, Et al., Study on removal of copper from nickel-copper mixed solution by membrane electrolysis, Hydrometallurgy, 180, pp. 153-157, (2018)
  • [8] TRAN T K, LEU H J, CHIU K F, Et al., Electrochemical treatment of heavy metal-containing wastewater with the removal of COD and heavy metal ions, Journal of the Chinese Chemical Society, 64, 5, pp. 493-502, (2017)
  • [9] ZENG Miao, FENG Kaili, YE Chenhao, Et al., Treatment of copper-containing wastewater by electrolysis method, Plating & Finishing, 38, 11, pp. 43-46, (2016)
  • [10] DAEHN K, ALLANORE A., Electrolytic production of copper from chalcopyrite, Current Opinion in Electrochemistry, 22, pp. 110-119, (2020)
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