This study employed the electrodeposition method to extract zinc from an ammonia re-extraction solution. The effects of different current densities, electrodeposition durations, electrode spacing, and stirring times on the electrodeposition efficiency were investigated. The experimental results showed that the best zinc electrodeposition performance and the highest current efficiency of 92.8% were achieved when the current density was 400 A/m2, the electrode spacing was 3 cm, no stirring was applied, and the electrodeposition process lasted for 5h. Electrodeposited zinc can convert and extract Zn2+, realizing resource recycling and showing promising industrial application prospects.
WuXYXieWJYeJ, et al.Progress in heavy metals-containing wastewater treatment via microbial electrolysis cell: a review. J Water Process Eng2023; 55: 104228.
2.
PietrelliLFerroSVoccianteM. Raw materials recovery from spent hydrochloric acid-based galvanizing wastewater. Chem Eng J2018; 341: 539–546.
3.
ZhengXHZhangJPShenJD, et al.Extraction and recovery of zinc from spent pickling solution: experimental design and mechanism analysis. J Mol Liq2024; 404: 125007.
4.
CaiJCGuoF. Mass transfer during membrane distillation treatment of wastewater from hot-dip galvanization. Sep Purif Technol2020; 235: 116164.
5.
GuecciaRWinterDRabdazzoS, et al.An integrated approach for the HCl and metals recovery from waste pickling solutions: pilot plant and design operations. Chem Eng Res Des2021; 168: 383–396.
6.
HuSXZhangHTanXZ, et al.Extraction of zinc from spent pickle liquor using primary amine extraction system. Hydrometallurgy2024; 224: 106259.
7.
LiQGLiuGHQiL, et al.Heavy metal-contained wastewater in China: discharge, management and treatment. Sci Total Environ2022; 808: 152091.
8.
JhaABarsolaBPathaniaD, et al.Nano-biogenic heavy metals adsorptive remediation for enhanced soil health and sustainable agricultural production. Environ Res2024; 252: 118926.
9.
Castro-MuñozRGonzález-MelgozaLLGarcía-DepraectO. Ongoing progress on novel nanocomposite membranes for the separation of heavy metals from contaminated water. Chemosphere2021; 270: 129421.
10.
LiewCSKiatkittipongWLimJW, et al.Stabilization of heavy metals loaded sewage sludge: reviewing conventional to state-of-the-art thermal treatments in achieving energy sustainability. Chemosphere2021; 227: 130310.
11.
HuZJZhangTLvL, et al.Extraction performance and mechanism of TBP in the separation of Fe3+ from wet-processing phosphoric acid. Sep Purif Technol2021; 272: 118822.
12.
GuJNLiangJXChenC, et al.Treatment of real deplating wastewater through an environmental friendly precipitation-electrodeposition-oxidation process: recovery of silver and copper and reuse of wastewater. Sep Purif Technol2020; 248: 117082.
13.
Garcia-RodriguezOMoussetEOlvera-VargasH, et al.Electrochemical treatment of highly concentrated wastewater: a review of experimental and modeling approaches from lab- to full-scale. Crit Rev Env Sci Tec2020; 52(2): 240–309.
14.
VivasELAlfafaraCGMigoVP, et al.Comparative evaluation of alkali precipitation and electrodeposition for copper removal in artisanal gold smelting wastewater in the Philippines. Desalin Water Treat2019; 150: 396–405.
15.
LiSDaiMAliI, et al.Recovery of nickel from actual electroplating wastewater by integrated electrodeposition with adsorption pretreatment technique. Process Saf Environ2023; 172: 417–424.
16.
DengDDengCJLiuTT, et al.Selective recovery of copper from electroplating sludge by integrated EDTA mixed with citric acid leaching and electrodeposition. Sep Purif Technol2022; 301: 121917.
17.
YangLMGaoZLiuT, et al.Direct electrochemical leaching method for high-purity lithium recovery from spent lithium batteries. Environ Sci Technol2023; 57: 4591–4597.
18.
WuCCGaoJLiuYZ, et al.High-gravity intensified electrodeposition for efficient removal of Cd2+ from heavy metal wastewater. Sep Purif Technol2022; 289: 120809.
19.
WuLGargSWaiteTD. Electrochemical treatment of wastewaters containing metal-organic complexes: a one-step approach for efficient metal complex decomposition and selective metal recovery. J Hazard Mater2024; 466: 133526.
20.
LiSDaiMAliI, et al.A new idea for efficient copper recovery from wastewater by electrodeposition: adsorption pretreatment. Desalination2023; 562: 116683.
21.
MatsumiyaMSumiMUchinoY, et al.Recovery of indium based on the combined methods of ionic liquid extraction and electrodeposition. Sep Purif. Tech2018; 201: 25–29.
22.
NepelTCDLandersRVieiraMGA, et al.Metallic copper removal optimization from real wastewater using pulsed electrodeposition. J Hazard Mater2020; 384: 121416.
