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Updated: Jul 9, 2026

Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
Potential electron acceptors for ammonium oxidation in wastewater treatment system under anoxic condition: A review
Weizhuo Ye1, Jiaqi Yan1, Jia Yan1
1School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China; Guangzhou University-Linköping University Research Center on Urban Sustainable Development, Guangzhou University, 510006, Guangzhou, China.
Abstract:
Anaerobic ammonium oxidation has been considered as an environmental-friendly and energy-efficient biological nitrogen removal (BNR) technology. Recently, new reaction pathway for ammonium oxidation under anaerobic condition had been discovered. In addition to nitrite, iron trivalent, sulfate, manganese and electrons from electrode might be potential electron acceptors for ammonium oxidation, which can be coupled to traditional BNR process for wastewater treatment. In this paper, the pathway and mechanism for ammonium oxidation with various electron acceptors under anaerobic condition is studied comprehensively, and the research progress of potentially functional microbes is summarized. The potential application of various electron acceptors for ammonium oxidation in wastewater is addressed, and the N2O emission during nitrogen removal is also discussed, which was important greenhouse gas for global climate change. The problems remained unclear for ammonium oxidation by multi-electron acceptors and potential interactions are also discussed in this review.
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