Performance of Denitrifying Phosphorous Removal Process Employing Nitrite as Electron Acceptor and the Characterization of Dominant Functional Populations
作者： Hong Xu Bao , Xi Ping Ma , Jian Wang , Kui Jing , Man Li Shen
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.455-456.1019
关键词:
摘要: A sequencing batch reactors (SBR) was adopted to investigate the denitrifying phosphorus removal efficiency employing nitrite as electron acceptor under anaerobic/anoxic condition. The experimental results showed that high nitrogen and could be obtained following conditions: concentration of 30~40 mg/L, COD 400 pH 8.0±0.2 in anaerobic stage 7.2±0.2 anoxic stage, sludge retention time (SRT) 22 days. When reactor performed steadily, a dominant functional strain screened from activated sludge, which has efficiency. Batch tests degree reach 99.18% 84.94% respectively when their concentrations were 20mg/L 10mg/L. according morphology physio-biochemical characteristics, 16S rDNA sequencing, it is determined belongs Genus Sphingobacterium. achieved this study might offer guidance development shortcut process.
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