Effect of pH on the Microbial Community Structure of SBBR Autotrophic Nitrogen Removal Process

Yu Qin; Jing Song Guo; Fang Fang

doi:10.4028/www.scientific.net/AMR.378-379.428

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 378-379Effect of pH on the Microbial Community Structure...

Effect of pH on the Microbial Community Structure of SBBR Autotrophic Nitrogen Removal Process

Abstract:

PCR-DGGE was applied to analyze the relationship between pH and the microbial community structure of Sequence Batch Biofilm Reactor (SBBR) autotrophic nitrogen removal process. The reactor was possessed of a high nitrogen removal efficiency at pH=8.0 where the similarity of microbial community structure between active sludge and biofilm samples was the lowest about 84.6% and the richness of bacterial community was the most abundant in biofilm compared with other pH conditions. pH=7.0 was good for the microbes in active sludge but unfavorable for anaerobic bacteria. At pH=9.0, the effects were presented with both bacterial activities and microbial community structure and when pH=6.0 the amount of microbial types dramatically dropped

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Periodical:

Advanced Materials Research (Volumes 378-379)

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428-432

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.378-379.428

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October 2011

Authors:

Yu Qin, Jing Song Guo, Fang Fang

Keywords:

Autotrophic Nitrogen Removal, Microbial Community Structures, PCR-DGGE, pH

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