Characterization of polyphosphate-accumulating bacteria community structure in enhanced biological phosphorus removal reactor
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Characterization of polyphosphate-accumulating bacteria community structure in enhanced biological phosphorus removal reactor
CIESC JournalIssue 5, Pages: 1282-1285(2010)
作者机构:
1. 哈尔滨工业大学城市水资源与水环境国家重点实验室
2. 北京工业大学北京市水质科学与水环境恢复工程重点实验室
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Online First:05 May 2010,
Published:05 May 2010
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MA Bin, PENG Yongzhen, WANG Shuying, et al. Characterization of polyphosphate-accumulating bacteria community structure in enhanced biological phosphorus removal reactor[J]. CIESC Journal, 2010, (5): 1282-1285.
DOI:
MA Bin, PENG Yongzhen, WANG Shuying, et al. Characterization of polyphosphate-accumulating bacteria community structure in enhanced biological phosphorus removal reactor[J]. CIESC Journal, 2010, (5): 1282-1285.DOI:
Characterization of polyphosphate-accumulating bacteria community structure in enhanced biological phosphorus removal reactor
In order to study the characterization of polyphosphate-accumulating organisms (PAOs) community structure in an enhanced biological phosphorus removal system
the phosphorus uptake of anaerobic-oxic (A/O) sludge and anaerobic-anoxic (A/A)sludge were investigated via batch tests.The experiment results indicated that the A/O sludge had a higher aerobic phosphorus uptake rate than the anoxic phosphorus uptake rate
however
the aerobic phosphorus uptake rate of the A/A sludge was less than the anoxic phosphorus uptake rate of that sludge.Based on these results
the presently used method
in which the ratio of the anoxic phosphorus uptake rate (qPa) to the aerobic uptake rate (qPo) gives the relative proportion of denitrifying polyphosphate-accumulating organisms (DPAOs) in the PAOs,is unreasonable.Furthermore
the PAOs community structure was related to the electron acceptor type.According to the type of electron acceptor
three groups of the PAOs could be proposed as follows:PON(using oxygen and nitrate as electron)
PO(using only oxygen as electron acceptor) and PN (using only nitrate as electron acceptor).