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Updated: Feb 8, 2026

Biology of Microbial Communities - Interview
Published on: May 28, 2007
[Aerobic Denitrification and Microbial Community Shift in SBR Bioaugmented with Strains YH01 and YH02]
Hai-Sheng Chen1, Gang Cao1,2, Di Zhang1
1School of Environment, Jinan University, Guangzhou 510630, China.
Abstract:
The enhanced aerobic denitrification capability of the mixed strains YH01+YH02 in utilizing potassium nitrate, and the dynamic changes in the microbial community component during the period of operation, were evaluated. The microbial community in different stages of the SBR was analyzed by using high-throughput sequencing technology after inoculation with YH01+YH02. The results showed that the NO3--N, TN, and COD removal efficiencies increased by 12.1%, 9.2%, and 9.4%, respectively. The relative abundances of the microbes in the microbial community increased at the genus level, and the diversity in the microbial community decreased after enhancement. Principal component analysis and UPGMA analysis revealed that the period of SBR operation was roughly divined into four phases. The relative abundances of Delftia and Acidovorax increased during the period of operation, and YH01+YH02 exhibited excellent compatibility with the SBR ecosystem and played an important part in aerobic denitrification.
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