乙二胺四乙酸
螯合作用
离子
化学
人类健康
电极
无机化学
环境化学
核化学
有机化学
医学
环境卫生
物理化学
作者
Juan Peng,Yameng Ma,Xiao Huang,Jianguo Yu,Fengjiao Yu,Jingsi Gao
出处
期刊:Water
[MDPI AG]
日期:2022-04-29
卷期号:14 (9): 1420-1420
摘要
Ni-ethylenediaminetetraacetic acid (Ni-EDTA) poses serious threats to the ecological environment and human health, due to its acute toxicity and low biodegradability. The decomplexation efficiency of Ni-EDTA through the conventional Fenton process has been constrained to pH; thus, other appropriate approaches are required to destroy the stable chelate structure at a neutral pH. In this study, the effect of operating parameters such as the pH, Fe2+ concentration, particle electrode dosage, current density, and coexisting ions was studied. The results revealed that the 3D-EF system owned advantages for the removal of Ni-EDTA in the broadening of the pH application window. The Ni-EDTA removal efficiency in the 3D-EF system reached 84.89% after 120 min at a pH of 7. In addition, the presence of coexisting ions slightly affected the decomplexation efficiency of Ni-EDTA.
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