Electrochemical Degradation of Ammonia Nitrogen in Mariculture Wastewater Using an Activated Carbon Fiber Composite Anode
- Autores: Xiaocai Yu 1, Yang H.1, Liu J.1, Wang L.1, Guo M.1
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Afiliações:
- College of Marine Science and Environment, Dalian Ocean University
- Edição: Volume 55, Nº 5 (2019)
- Páginas: 587-594
- Seção: Article
- URL: https://journals.rcsi.science/1068-3755/article/view/231349
- DOI: https://doi.org/10.3103/S1068375519050144
- ID: 231349
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Resumo
This work studied the electrochemical degradation of \({\text{NH}}_{4}^{ + }\)-N in mariculture wastewater using an activated carbon fiber composite anode. The effects of the operating parameters and by-products were investigated. Based on the analysis of the removal rate of \({\text{NH}}_{4}^{ + }\)-N, energy consumption, and current efficiency under various operating conditions, the optimal conditions were ascertained as follows: an initial \({\text{NH}}_{4}^{ + }\)-N concentration of 40 mg/L, a current density of 1.4 mA/cm2, a pH value of 8, no extra electrolyte, an electrode gap of 17 mm and the degradation rate of \({\text{NH}}_{4}^{ + }\)-N could reach 94% after 90 min of electrolysis. At the same time, the energy consumption needed in the whole reaction process was extremely low and by-product mass generated from the reaction was negligible. In addition, dynamic fitting indicates the degradation procedure was in accordance with the first-order kinetic model.
Sobre autores
Xiaocai Yu
College of Marine Science and Environment, Dalian Ocean University
Autor responsável pela correspondência
Email: 978404210@qq.com
República Popular da China, Dalian, 116000
Hang Yang
College of Marine Science and Environment, Dalian Ocean University
Email: 978404210@qq.com
República Popular da China, Dalian, 116000
Jinghua Liu
College of Marine Science and Environment, Dalian Ocean University
Email: 978404210@qq.com
República Popular da China, Dalian, 116000
Liping Wang
College of Marine Science and Environment, Dalian Ocean University
Email: 978404210@qq.com
República Popular da China, Dalian, 116000
Meichen Guo
College of Marine Science and Environment, Dalian Ocean University
Email: 978404210@qq.com
República Popular da China, Dalian, 116000
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