LAPSE:2023.35174
Published Article
LAPSE:2023.35174
Short Review of Self-Powered Nitrogen Removal via Abiotic Electrochemical Catalysis
Binbin Yu, Wei Xu, Yanxian Jin
April 28, 2023
Microbial nitrification and denitrification are efficient technologies for the treatment of nitrogen-containing wastewater. However, these biotic technologies are inapplicable for the treatment of toxic substances such as heavy metals, polyaromatic hydrocarbons, adsorbable organic halogens, and polychlorinated biphenyls, which have an inhibitory effect on microbial metabolism. It is therefore necessary to develop abiotic nitrogen removal technology with comparable cost efficiency. Nitrogen contaminants are promising indirect fuel sources. The integration of electrocatalysis energy conversion with nitrogen contaminants could drive an entire electrochemical system to obtain nitrogen removal in a self-powered fashion. Research advances in the development of fuel cells have corroborated their promising application for nitrogen removal. This work aims to review the most recent advances in the utilization of ammonia and nitrate as fuels for self-powered nitrogen removal and demonstrate how close this technology is to integration with future applications. The mechanism of ammonia−oxygen fuel cells is first summarized, followed by an overview of recent research on self-powered systems based on various noble-metal-free catalysts. We then introduce different harvesting and conversion methods using nitrate with a desired power output and nitrogen removal efficiency. The final section demonstrates the shortcomings of research and future innovative perspectives for self-powered wastewater treatment.
Keywords
abiotic electrocatalysts, Fuel Cells, nitrogen removal, self-power
Subject
Suggested Citation
Yu B, Xu W, Jin Y. Short Review of Self-Powered Nitrogen Removal via Abiotic Electrochemical Catalysis. (2023). LAPSE:2023.35174
Author Affiliations
Yu B: School of Environment, Nanjing University, Nanjing 210008, China; School of Pharmaceutical, Taizhou University, Taizhou 318000, China
Xu W: Zhejiang Tianxiang Environmental Service Co., Ltd., Hangzhou 310000, China
Jin Y: School of Pharmaceutical, Taizhou University, Taizhou 318000, China
Journal Name
Processes
Volume
11
Issue
4
First Page
1096
Year
2023
Publication Date
2023-04-04
Published Version
ISSN
2227-9717
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PII: pr11041096, Publication Type: Review
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LAPSE:2023.35174
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doi:10.3390/pr11041096
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Apr 28, 2023
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CC BY 4.0
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