Performance and microbial community in a single-stage simultaneous carbon oxidation, partial nitritation, denitritation and anammox system treating synthetic coking wastewater under the stress of phenol

Zhou, Xin; Wang, Gonglei; Yin, Zeyang; Chen, Jiabo; Jin, Zhen; Liu, Yu

doi:10.1016/j.chemosphere.2019.125382

Cited by 38 publications

(4 citation statements)

References 28 publications

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“…As the running of the reactor operation, the anammox bacteria were relative stable. This finding was consistent with the previous report (Zhou et al, 2020). It demonstrated that some anammox bacteria could exist under the phenol stress.…”

Section: Resultssupporting

confidence: 94%

“…For the AOB, the metabolic activity increased in the 40 th day and then kept stable which provided the increasing nitrite for the nitrifying bacteria. The anammox bacteria competed for nitrite with heterotrophic nitrification bacteria (Zhou et al, 2020), and the change trend of SAA was first decrease before 40 th day then increase. The denitrifying bacteria activity of sludge increased from 45.6 ± 3.0 mg NOx ‐ ‐N g −1 MLVSS d −1 on 20th day to 54.9 ± 3.2 mg NOx − ‐N g −1 MLVSS d −1 on 40th day, and then gradually decreased to 38.9 ± 1.8 mg NOx − ‐N g −1 MLVSS d −1 on 60th day.…”

Section: Resultsmentioning

confidence: 99%

“…It demonstrated that some anammox bacteria could exist under the phenol stress. When the anammox bacteria were prominent, it would compete for nitrites with denitrifiers, which was also served as electron donor during the denitritation (Zhou et al, 2020). The interaction among phenol‐degrading bacteria, AOB, NOB, denitrifying bacteria, and anammox bacteria might be the decisive factor for the enrichment of anammox bacteria.…”

Section: Resultsmentioning

confidence: 99%

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Performance of single‐stage partial nitritation and anammox reactor treating low‐phenol/ammonia ratio wastewater and analysis of microbial community structure

Ren

et al. 2021

Water Environment Research

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Phenol and ammonia are common pollutants in many industrial wastewaters. The partial nitritation and anammox process is a very promising technology for treating phenol–ammonia wastewater. This study was the first time to rapidly achieve the start‐up and operation of the single‐stage partial nitritation /anammox reactor treating phenol–ammonia wastewater. The optimized ratio of phenol and nitrogen (phenol/NH4+‐N=0.3) was set to start‐up the reactor. After 60 days of operation, the total nitrogen and COD removal efficiencies were around 73.0% and 79.5%, respectively. The activity of ammonium‐oxidizing bacteria was291.1 ± 3.0 mg NH4+‐N g−1MLVSS d−1 and the specific anammox activity was 20.9 ± 1.0 mg NH4+‐N g−1MLVSS d−1. The results indicated that the anammox bacteria had adapted to phenol condition and remained stable activity after the 60 days’ operation in the reactor. The sequence analysis of 16SrRNA showed that the microbial community structure evolved to a balanced distribution that the removals of phenol and ammonia could be achieved simultaneously. Practitioner Points Phenol/N ratio of 0.3 was set to start up the single‐stage partial nitritation/anammox reactor. The single‐stage partial nitritation /anammox reactor was rapidly started up when treating the phenol‐ammonia wastewater. Total nitrogen removal rate and COD removal efficiencies could achieve to 73.0% and 79.5%, respectively. Microbial community structure evolved to stable distribution of which AOB, anammox bacteria, denitrification bacteria and heterotrophic nitrification bacteria coexisted.

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Section: Resultssupporting

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Performance of single‐stage partial nitritation and anammox reactor treating low‐phenol/ammonia ratio wastewater and analysis of microbial community structure

Ren

et al. 2021

Water Environment Research

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“…Respirometric studies were performed using the BM‐Advance respirometer (Surcis). Free ammonia (FA), nitrite accumulation rate, and ammonium oxidation efficiencies were calculated as described by Zhou et al 28 . Free nitrous acid (FNA) was determined as given by Asik et al 29 …”

Section: Methodsmentioning

confidence: 99%

Specific ammonium oxidation and denitrification rates in an MBR treating real textile wastewater for simultaneous carbon and nitrogen removal

Yılmaz

Demir

Basaran

et al. 2023

J of Chemical Tech & Biotech

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BackgroundDissolved oxygen (DO) and aeration on/off time are the determining parameters for simultaneous carbon and nitrogen removal in biological treatment processes. The most effective way to decide the optimum operational conditions, e.g. aeration on/off time or dissolved oxygen concentration during the aeration period, is to determine specific nitrification/denitrification rates. For this purpose, the effects of the dissolved oxygen (DO) (6 and 3 mg/L) and aeration on/off time (from 2/2 min to 90/360 min) on the specific ammonium oxidation and denitritation/denitrification rates in a membrane bioreactor (MBR) treating real textile wastewater were deeply investigated.ResultsThe highest specific ammonium oxidation and denitritation/denitrification rates were obtained as 5.4, 3.8 and 5.3 mg N/(g VSS.h), respectively, at the aeration on/off time of 90/360 min, which corresponded to the increase of specific ammonium oxidation rates by 1.8 and 2.1 times compared to continuous aeration conditions where DO was 6 and 3 mg/L, respectively.ConclusionHigher specific ammonium oxidation and denitrification rates can be achieved with the intermittent aeration compared to continuous aeration. Hence, the existing treatment plants can be retrofitted for higher performance with reduced energy requirements.This article is protected by copyright. All rights reserved.

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Anaerobic Ammonium Oxidation Process

Dawen,

Nabi

2024

Springer Water

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Performance and microbial community in a single-stage simultaneous carbon oxidation, partial nitritation, denitritation and anammox system treating synthetic coking wastewater under the stress of phenol

Cited by 38 publications

References 28 publications

Performance of single‐stage partial nitritation and anammox reactor treating low‐phenol/ammonia ratio wastewater and analysis of microbial community structure

Performance of single‐stage partial nitritation and anammox reactor treating low‐phenol/ammonia ratio wastewater and analysis of microbial community structure

Specific ammonium oxidation and denitrification rates in an MBR treating real textile wastewater for simultaneous carbon and nitrogen removal

Anaerobic Ammonium Oxidation Process

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