Insight into the overconsumption of ammonium by anammox consortia under anaerobic conditions

Zhang, Z.; Liu, S.

doi:10.1111/jam.12649

Cited by 30 publications

(9 citation statements)

References 24 publications

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“…Thus, Rhodocyclaceae could be an unknown DAMO microorganism, but its role remains to be elucidated. Fimbriimonadaceae (7%) belongs to phylum Armatimonadetes , which was previously detected in an Anammox consortia with the overconsumption of ammonium . The pyrosequencing results are broadly supported by FISH images acquired (Figure c), which confirmed the presence of DAMO archaea, and Anammox and DAMO bacteria in the community.…”

Section: Resultssupporting

confidence: 73%

Complete Nitrogen Removal from Synthetic Anaerobic Sludge Digestion Liquor through Integrating Anammox and Denitrifying Anaerobic Methane Oxidation in a Membrane Biofilm Reactor

Xie

Cai

et al. 2016

Environ. Sci. Technol.

134

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Partial nitritation and Anammox processes are increasingly used for nitrogen removal from anaerobic sludge digestion liquor. However, their nitrogen removal efficiency is often limited due to the production of nitrate by the Anammox reaction and the sensitivity to the nitrite to ammonium ratio. This work develops and demonstrates an innovative process that achieves complete nitrogen removal from partially nitrified anaerobic sludge digestion liquor through the use of a membrane biofilm reactor (MBfR), with methane supplied through hollow fiber membranes. When steady state with a hydraulic retention time (HRT) of 1 day was reached, the process achieved complete nitrite and ammonium removal at rates of 560 mg N/L/d and 470 mg N/L/d, respectively, without any nitrate accumulation. The process is relatively insensitive to the nitrite to ammonium ratio, achieving complete nitrogen removal when their ratio in influent varied in the range of 1.125-1.32. Pyrosequencing and fluorescence in situ hybridization analysis revealed that denitrifying anaerobic methane oxidation (DAMO) archaea, Anammox bacteria and DAMO bacteria jointly dominated the microbial community. Mass balance analysis showed that nitrate produced by Anammox (122.2 mg N/L/d) was entirely converted to nitrite by DAMO archaea, while nitrite in the feed and produced by DAMO archaea was jointly removed by Anammox (90%) and DAMO bacteria (10%). The nitrogen removal rate of over 1 kg N/m/d is comparable to the practical rates reported for side-stream nitrogen removal processes.

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Section: Resultssupporting

confidence: 73%

Complete Nitrogen Removal from Synthetic Anaerobic Sludge Digestion Liquor through Integrating Anammox and Denitrifying Anaerobic Methane Oxidation in a Membrane Biofilm Reactor

Xie

Cai

et al. 2016

Environ. Sci. Technol.

134

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“…However, the activity of nitrite-oxidizing bacteria (NOB) is questionable because AOB outcompete NOB in an environment with limited dissolved oxygen by taking advantage of their higher affinity for dissolved oxygen [38]. Previous research described the short-term overconsumption of NH 4 + -N over NO 2 ‾-N within an ANAMMOX community caused by oxidants such as super oxides or hydroxyl radials which are released under biomass stress conditions with a low concentration of ANAMMOX bacteria [39]. In Phase I, the rapid decay of bacteria which originated from the activated sludge, which did not adapt to the strict anaerobic and chemolithoautotrophic conditions, may have facilitated the release of reactive oxidants to remove NH 4 + -N.…”

Section: Anammox Reactor Performancementioning

confidence: 99%

Enrichment of ANAMMOX bacteria from conventional activated sludge entrapped in poly(vinyl alcohol)/sodium alginate gel

Bae

Choi

Lee

et al. 2015

Chemical Engineering Journal

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“…Giving special attention to the families that compose the core microbiome, we observed that the ammonia removal is significantly correlated with the Fimbriimonadaceae and Pirellulaceae families. Pirellulaceae are ammonia-oxidizing bacteria 31 , while Fimbriimonadaceae belong to the Armatinomonadetes phylum, detected in ANAMMOX (ANaerobic AMMonium OXidation) consortia 32 . The two families aforementioned are positively correlated (p < 0.001, Spearman's rank correlation coefficient = 0.495), implying that the Fimbriimonadaceae family either contains ammonia oxidizing taxons or has positive interactions with ammonia oxidizing bacteria, favouring the ammonia oxidizing processes.…”

Section: Discussionmentioning

confidence: 99%

Tuning up microbiome analysis to monitor WWTPs’ biological reactors functioning

Celis

Belda

Ortiz‐Álvarez

et al. 2020

Sci Rep

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Wastewater treatment plants (WWtps) are necessary to protect ecosystems quality and human health. Their function relies on the degradation of organic matter and nutrients from a water influent, prior to the effluent release into the environment. In this work we studied the bacterial community dynamics of a municipal WWTP with a membrane bioreactor through 16S rRNA gene sequencing. The main phyla identified in the wastewater were Proteobacteria, Bacteroidetes, Chloroflexi, Planctomycetes and Actinobacteria. The WWTP is located in Spain and, like other studied WWTP in temperate climate zones, the temperature played a major role in community assembly. Seasonal community succession is observed along the two years sampling period, in addition to a continual annual drift in the microbial populations. the core community of the WWtp bioreactor was also studied, where a small fraction of sequence variants constituted a large fraction of the total abundance. this core microbiome stability along the sampling period and the likewise dissimilarity patterns along the temperature gradient makes this feature a good candidate for a new process control in WWtps.

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Insight into the overconsumption of ammonium by anammox consortia under anaerobic conditions

Abstract: This investigation will have importance to better understand the anammox process operation. The overconsumption of ammonium could be used as an indicator for fluctuations in anammox cultivation.

Cited by 30 publications

References 24 publications

Complete Nitrogen Removal from Synthetic Anaerobic Sludge Digestion Liquor through Integrating Anammox and Denitrifying Anaerobic Methane Oxidation in a Membrane Biofilm Reactor

Complete Nitrogen Removal from Synthetic Anaerobic Sludge Digestion Liquor through Integrating Anammox and Denitrifying Anaerobic Methane Oxidation in a Membrane Biofilm Reactor

Enrichment of ANAMMOX bacteria from conventional activated sludge entrapped in poly(vinyl alcohol)/sodium alginate gel

Tuning up microbiome analysis to monitor WWTPs’ biological reactors functioning

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