Anammox bacterial abundance and biodiversity in greenhouse vegetable soil are influenced by high nitrate content

Qin, Hongyi; Deng, Huan; Han, Cheng; Zhong, Wang

doi:10.1016/s1002-0160(18)60023-2

Cited by 8 publications

(1 citation statement)

References 48 publications

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“…N fixation, mineralization, nitrification, and denitrification were discovered 100 years ago, and they have been successfully applied to wastewater treatment ever since 23,24 . Anammox (i.e., NO 2 − that is reduced to N 2 by NH 4 + under anaerobic conditions) was first discovered from an experimental wastewater treatment reactor in 1995; 25 later, anammox bacteria was found in the marine environment 26 and in different soil environments, including permafrost soil, 27 greenhouse vegetable soil, 28 paddy soil, 29 and alpine wetland soils 30 . The anammox process has upended the understanding of the N cycle and it was the last major discovery made regarding the N cycle in the past few decades 31,32 .…”

Section: Introductionmentioning

confidence: 99%

A review on new ammonium oxidation alternatives for effective nitrogen removal from wastewater

Zhao

Feng

et al. 2022

J of Chemical Tech & Biotech

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As a highly oxidizing ion, ammonium (NH4+) is easily reduced by other reducing substances. Recently, NH4+ oxidation coupled with Fe3+, SO42−, and Mn4+ reduction (i.e., Feammox, Sulfammox, and Mnammox) has been confirmed and their collaborative roles in removing NH4+ have been revealed in several studies. However, only limited knowledge could be obtained on observed interactions with several variable parameters due to the exiguous research in this field, which makes it challenging to draw basic and mechanistic conclusions. This review focuses on these new NH4+ oxidation alternatives and provides a systematic and comprehensive overview of recent advances in these processes. Specifically, based on the summaries of their reaction conditions, nine influencing factors (including microorganisms, concentrations of reactants, pH, redox potential, temperature, organic carbon, oxygen concentration, salinity, and inhibitory substances) are discussed in detail. Then, the drawbacks of the three processes are pointed out. The results show that, at present, the practical engineering applications for NH4+ removal are not suitable due to their harsh reaction conditions and low removal efficiency. Finally, suggestions for further research on these processes are presented to inspire more interest from researchers in related fields and to promote and realize their large‐scale engineering application in the near future. © 2022 Society of Chemical Industry (SCI).

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