Ammonia oxidizing bacteria community dynamics in a pilot-scale wastewater treatment plant.

PloS One
Xiaohui WangKun Ding

Abstract

Chemoautotrophic ammonia oxidizing bacteria (AOB) have the metabolic ability to oxidize ammonia to nitrite aerobically. This metabolic feature has been widely used, in combination with denitrification, to remove nitrogen from wastewater in wastewater treatment plants (WWTPs). However, the relative influence of specific deterministic environmental factors to AOB community dynamics in WWTP is uncertain. The ecological principles underlying AOB community dynamics and nitrification stability and how they are related are also poorly understood. The community dynamics of ammonia oxidizing bacteria (AOB) in a pilot-scale WWTP were monitored over a one-year period by Terminal Restriction Fragment Length Polymorphism (T-RFLP). During the study period, the effluent ammonia concentrations were almost below 2 mg/L, except for the first 60 days, indicting stable nitrification. T-RFLP results showed that, during the test period with stable nitrification, the AOB community structures were not stable, and the average change rate (every 15 days) of AOB community structures was 10% ± 8%. The correlations between T-RFLP profiles and 10 operational and environmental parameters were tested by Canonical Correlation Analysis (CCA) and Mantel test. Th...Continue Reading

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Citations

Feb 21, 2014·Environmental Monitoring and Assessment·Gangavarapu SubrahmanyamJi-Zheng He
Feb 26, 2013·Applied Microbiology and Biotechnology·Marina ArnaldosKrishna R Pagilla
Feb 25, 2015·Current Opinion in Biotechnology·Francis L de los ReyesLing Wang
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Mar 24, 2015·Applied Microbiology and Biotechnology·Yan ZhangDonghui Wen
Apr 15, 2017·Environmental Science & Technology·Xiaohui WangNan Luo
Aug 24, 2021·Applied Microbiology and Biotechnology·Tamara J H M van BergenCornelia U Welte

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Methods Mentioned

BETA
electrophoresis
PCR

Software Mentioned

ClustalX
R
SPSS
GeneScan
Mega
Canoco

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