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- Title
MUCT 工艺反硝化除磷效率与Candidatus Accumulibacter 的群落演替.
- Authors
曾摇薇; 李摇超; 孟庆安; 马晨阳
- Abstract
In this study, Modified University of Cape Town (MUCT) process was used to treat domestic sewage with low 籽(C) / 籽(N) ratio, and the relationship between population dynamics of dominant Candidatus Accumulibacter and efficiency of denitrifying phosphorus removal under nitration and nitrification was studied. Flow cytometry based quantification showed that Accumulibacter accounting for 22郾1% of total bacteria were dominant phosphate accumulating organisms (PAOs) in system under nitrification. qPCR based estimation indicated that dominant species IIC, IIC(ppk1 excluding OTU NS D3) and IIF grew fast and accounted for 11郾53%, 34郾31% and 17郾97% of Accumulibacter, respectively, while their ability using nitrite to achieve denitrifying phosphorus removal were stronger than that of other clades and were important for nitrite removal in system. As the most important clade in N and P removal in system, IID was always dominant along entire operation, which accounted for 80% of Accumulibacter under nitrification, but not as competitive as other Type II clades under nitration.
- Subjects
SEWAGE; FLOW cytometry; NITRATION; NITRIFICATION; UNIVERSITY towns
- Publication
Journal of Beijing University of Technology, 2019, Vol 45, Issue 12, p1243
- ISSN
0254-0037
- Publication type
Article
- DOI
10.11936/bjutxb2018050003