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Ammonia oxidizing bacterial community composition and process performance in wastewater treatment plants under low temperature conditions.

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Title: Ammonia oxidizing bacterial community composition and process performance in wastewater treatment plants under low temperature conditions.
Authors: Rodriguez-Caballero, A.1,2, Hallin, S.1,3, Pâhlson, C.1,4, Odlare, M.1, Dahlquist, E.1
Source: Water Science & Technology. 2012, Vol. 65 Issue 2, p197-204. 8p.
Subjects: Nitrification, Ammonia-oxidizing bacteria, Archaebacteria, Sewage disposal plants, Activated sludge process, Nitrosomonas, Low temperatures
Geographic Terms: Sweden
Abstract: Nitrification can be difficult to maintain at wastewater treatment plants (WWTPs) during cold periods resulting in disrupted nitrogen removal. The aim of this study was to relate nitrification process performance to abundance and composition of the ammonia oxidizer communities in two closely located municipal WWTPs in Sweden during an eight month period covering seasonal changes and low temperature conditions. Both facilities showed lower NH4+-N removal efficiency and nitrification rates as temperature decreased. However, one of the plants had a more stable nitrification rate and higher ammonia removal efficiency throughout the entire period. The differences in performance was related to a shift in the composition of the bacterial ammonia oxidizing community from a Nitrosomonas oligotropha-dominated community to a mixed community including also Nitrosomonas ureae-like ammonia oxidizers. This was likely a response to differences in NH4+-N and organic loading. [ABSTRACT FROM AUTHOR]
Copyright of Water Science & Technology is the property of IWA Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 73365852
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Ammonia oxidizing bacterial community composition and process performance in wastewater treatment plants under low temperature conditions.
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  Data: <searchLink fieldCode="DE" term="%22Nitrification%22">Nitrification</searchLink><br /><searchLink fieldCode="DE" term="%22Ammonia-oxidizing+bacteria%22">Ammonia-oxidizing bacteria</searchLink><br /><searchLink fieldCode="DE" term="%22Archaebacteria%22">Archaebacteria</searchLink><br /><searchLink fieldCode="DE" term="%22Sewage+disposal+plants%22">Sewage disposal plants</searchLink><br /><searchLink fieldCode="DE" term="%22Activated+sludge+process%22">Activated sludge process</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrosomonas%22">Nitrosomonas</searchLink><br /><searchLink fieldCode="DE" term="%22Low+temperatures%22">Low temperatures</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Sweden%22">Sweden</searchLink>
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  Data: Nitrification can be difficult to maintain at wastewater treatment plants (WWTPs) during cold periods resulting in disrupted nitrogen removal. The aim of this study was to relate nitrification process performance to abundance and composition of the ammonia oxidizer communities in two closely located municipal WWTPs in Sweden during an eight month period covering seasonal changes and low temperature conditions. Both facilities showed lower NH4+-N removal efficiency and nitrification rates as temperature decreased. However, one of the plants had a more stable nitrification rate and higher ammonia removal efficiency throughout the entire period. The differences in performance was related to a shift in the composition of the bacterial ammonia oxidizing community from a Nitrosomonas oligotropha-dominated community to a mixed community including also Nitrosomonas ureae-like ammonia oxidizers. This was likely a response to differences in NH4+-N and organic loading. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Water Science & Technology is the property of IWA Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.2166/wst.2012.643
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 197
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      – SubjectFull: Nitrification
        Type: general
      – SubjectFull: Ammonia-oxidizing bacteria
        Type: general
      – SubjectFull: Archaebacteria
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      – SubjectFull: Sewage disposal plants
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      – SubjectFull: Activated sludge process
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      – SubjectFull: Nitrosomonas
        Type: general
      – SubjectFull: Low temperatures
        Type: general
      – SubjectFull: Sweden
        Type: general
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      – TitleFull: Ammonia oxidizing bacterial community composition and process performance in wastewater treatment plants under low temperature conditions.
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            NameFull: Rodriguez-Caballero, A.
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              Text: 2012
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