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.
摘要：
厌氧氨氧化被认为是一种环境友好、节能的生物脱氮技术。最近,发现了厌氧条件下氨氧化反应的新途径。除了亚硝酸盐,三价铁，硫酸盐,锰和来自电极的电子可能是铵氧化的潜在电子受体，它可以与传统的BNR废水处理工艺相结合。在本文中,全面研究了厌氧条件下各种电子受体氧化氨的途径和机理，并对具有潜在功能的微生物的研究进展进行了综述。讨论了各种电子受体在废水中铵氧化中的潜在应用，并讨论了脱氮过程中的N2O排放，这是全球气候变化的重要温室气体。本文还讨论了多电子受体和潜在相互作用对氨氧化的问题尚不清楚。
