Heterotrophic nitrification and aerobic denitrification by Pseudomonas tolaasii Y-11 without nitrite accumulation during nitrogen conversion

He, Tengxia; Li, Zhenlun; Sun, Quan; Xu, Yi; Ye, Qing

doi:10.1016/j.biortech.2015.10.064

Cited by 268 publications

(87 citation statements)

References 27 publications

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“…For Salmonella enterica , genes encoding nitrate, nitrite and nitric oxide reductases can be found in GenBank, implying that this species can remove nitrogen by an aerobic denitrification process. Some Enterobacter , Citrobacter and Pseudomonas strains were reported to be capable of aerobic denitrification . Especially, Enterobacter and Pseudomonas strains exhibited good HN‐AD abilities .…”

Section: Resultsmentioning

confidence: 99%

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Simultaneous bisphenol F degradation, heterotrophic nitrification and aerobic denitrification by a bacterial consortium

Lü

Weng

Wei

et al. 2016

J of Chemical Tech & Biotech

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BACKGROUND Traditional aerobic autotrophic nitrification and anoxic heterotrophic denitrification have many limitations. Recently, the simultaneous heterotrophic nitrification–aerobic denitrification (HN‐AD) process has received increasing attention. Thus, the possibility of the simultaneous removal of bisphenols and NH4+‐N via HN‐AD was investigated. RESULTS A bisphenols‐degrading bacterial consortium was enriched and capable of degrading 50 mg L−1 bisphenol A, 300 mg L−1 4,4‐dihydroxybenzophenone, 375 mg L−1 bisphenol F (BPF) and 10 mg L−1 bis(4‐hydroxyphenyl)sulfide under aerobic conditions. Further studies showed that the bacterial consortium could completely degrade 300 mg L−1 BPF and remove NH4+‐N at 35 °C with 150 rpm at the C/N ratio of over 10. Moreover, BPF mineralization and NH4+‐N reduction to N2 were observed. Clone library analysis indicated that Salmonella enterica, Enterobacter,Citrobacter and Pseudomonas could cooperate to degrade BPF and reduce NH4+‐N to N2. Among these species, the isolated Pseudomonas sp. HS‐2 was capable of simultaneous BPF degradation and NH4+‐N removal via HN‐AD. CONCLUSION The experimental results demonstrated that the enriched bacterial consortium and the isolated strain HS‐2 could simultaneously remove BPF and NH4+‐N via HN‐AD, indicating that this is a potential way for the treatment of wastewaters containing these compounds. © 2016 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

“…Some Enterobacter , Citrobacter and Pseudomonas strains were reported to be capable of aerobic denitrification . Especially, Enterobacter and Pseudomonas strains exhibited good HN‐AD abilities . Moreover, some Enterobacter and Pseudomonas species had BPA‐degrading abilities .…”

Section: Resultsmentioning

confidence: 99%

Simultaneous bisphenol F degradation, heterotrophic nitrification and aerobic denitrification by a bacterial consortium

Lü

Weng

Wei

et al. 2016

J of Chemical Tech & Biotech

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“…), Pseudomonas tolaasii Y‐11 from paddy soil (He et al . ), Zobellella taiwanensis DN‐7 from a landfill (Lei et al . ), Klebsiella pneumoniae CF‐S9 from domestic sewage water (Padhi et al .…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of heterotrophic nitrifying and aerobic denitrifying Klebsiella pneumoniae and Klebsiella variicola strains from various environments

2018

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This study is one of only a few works to successfully isolate K. pneumoniae with heterotrophic nitrification and aerobic denitrification abilities in various natural environments. The physiological characterization K. variicola as having abilities to heterotrophically nitrify and aerobically denitrify is the first to be reported. Moreover, this study may provide alternative microbial resources for the removal of nitrogen from wastewater.

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“…However, the traditional method of biological nitrogen removal requires two separate systems: autotrophic nitrification (NH 4 + →NH 2 OH→NO 2 − →NO 3 − ) under aerobic conditions and heterotrophic denitrification (NO 3 − →NO 2 − →NO→N 2 O→N 2 ) under anoxic conditions [7,8], making it relatively more expensive. To date, more and more bacteria with abilities of heterotrophic nitrification and aerobic denitrification (HN-AD) have been reported since Roberson firstly separated the aerobic denitrifier [9][10][11][12]. These bacteria could not only realize nitrification and denitrification occurring in one aerobic system, but also balance the alkalinity produced via denitrification [9,13].…”

Section: Introductionmentioning

confidence: 99%

“…To date, more and more bacteria with abilities of heterotrophic nitrification and aerobic denitrification (HN-AD) have been reported since Roberson firstly separated the aerobic denitrifier [9][10][11][12]. These bacteria could not only realize nitrification and denitrification occurring in one aerobic system, but also balance the alkalinity produced via denitrification [9,13]. Thus, bacteria with HN-AD ability under aerobic conditions have shown more potential application prospects in the wastewater treatment field.…”

Section: Introductionmentioning

confidence: 99%

Heterotrophic Nitrification-Aerobic Denitrification Performance of Strain Y-12 under Low Temperature and High Concentration of Inorganic Nitrogen Conditions

Heterotrophic nitrification and aerobic denitrification by Pseudomonas tolaasii Y-11 without nitrite accumulation during nitrogen conversion

Cited by 268 publications

References 27 publications

Simultaneous bisphenol F degradation, heterotrophic nitrification and aerobic denitrification by a bacterial consortium

Simultaneous bisphenol F degradation, heterotrophic nitrification and aerobic denitrification by a bacterial consortium

Isolation and characterization of heterotrophic nitrifying and aerobic denitrifying Klebsiella pneumoniae and Klebsiella variicola strains from various environments

Heterotrophic Nitrification-Aerobic Denitrification Performance of Strain Y-12 under Low Temperature and High Concentration of Inorganic Nitrogen Conditions

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