Decomplexation of Ni-EDTA by Three-Dimensional Electro-Fenton
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...
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MDPI AG
2022-04-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/9/1420 |
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| author | Juan Peng Yameng Ma Xiao Huang Jianghua Yu Fengjiao Yu Jingsi Gao |
| author_facet | Juan Peng Yameng Ma Xiao Huang Jianghua Yu Fengjiao Yu Jingsi Gao |
| author_sort | Juan Peng |
| collection | DOAJ |
| description | 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, Fe<sup>2+</sup> 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. |
| first_indexed | 2024-03-10T03:33:41Z |
| format | Article |
| id | doaj.art-dcab598fe9164610a8c01a6aa4e11478 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T03:33:41Z |
| publishDate | 2022-04-01 |
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| series | Water |
| spelling | doaj.art-dcab598fe9164610a8c01a6aa4e114782023-11-23T09:35:33ZengMDPI AGWater2073-44412022-04-01149142010.3390/w14091420Decomplexation of Ni-EDTA by Three-Dimensional Electro-FentonJuan Peng0Yameng Ma1Xiao Huang2Jianghua Yu3Fengjiao Yu4Jingsi Gao5State Environmental Protection Engineering Center (Shenzhen) for Hazardous Waste Utilization and Disposal, Shenzhen Environmental Technology Group Co., Ltd., Shenzhen 518055, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaSchool of Materials and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, ChinaSchool of Materials and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, ChinaNi-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, Fe<sup>2+</sup> 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.https://www.mdpi.com/2073-4441/14/9/1420Ni-EDTAthree-dimensional electro-Fentonneutral pHdecomplexation |
| spellingShingle | Juan Peng Yameng Ma Xiao Huang Jianghua Yu Fengjiao Yu Jingsi Gao Decomplexation of Ni-EDTA by Three-Dimensional Electro-Fenton Water Ni-EDTA three-dimensional electro-Fenton neutral pH decomplexation |
| title | Decomplexation of Ni-EDTA by Three-Dimensional Electro-Fenton |
| title_full | Decomplexation of Ni-EDTA by Three-Dimensional Electro-Fenton |
| title_fullStr | Decomplexation of Ni-EDTA by Three-Dimensional Electro-Fenton |
| title_full_unstemmed | Decomplexation of Ni-EDTA by Three-Dimensional Electro-Fenton |
| title_short | Decomplexation of Ni-EDTA by Three-Dimensional Electro-Fenton |
| title_sort | decomplexation of ni edta by three dimensional electro fenton |
| topic | Ni-EDTA three-dimensional electro-Fenton neutral pH decomplexation |
| url | https://www.mdpi.com/2073-4441/14/9/1420 |
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