Anoxic phosphorus removal in a pilot scale anaerobic-anoxic oxidation ditch process

Hou, HX, Wang, SY, Peng, YZ, Yuan, ZG, Yin, FF and Gan, W (2009) Anoxic phosphorus removal in a pilot scale anaerobic-anoxic oxidation ditch process. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING IN CHINA, 3 1: 106-111. doi:10.1007/s11783-009-0005-8

Author Hou, HX
Wang, SY
Peng, YZ
Yuan, ZG
Yin, FF
Gan, W
Title Anoxic phosphorus removal in a pilot scale anaerobic-anoxic oxidation ditch process
Journal name FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING IN CHINA   Check publisher's open access policy
ISSN 1673-7520
Publication date 2009-03
Year available 2009
Sub-type Article (original research)
DOI 10.1007/s11783-009-0005-8
Volume 3
Issue 1
Start page 106
End page 111
Total pages 6
Editor Yi Qian
Place of publication China
Publisher Gaodeng Jiaoyu Chubanshe
Collection year 2010
Language eng
Subject C1
Abstract The anaerobic-anoxic oxidation ditch (A2/O OD) process is popularly used to eliminate nutrients from domestic wastewater. In order to identify the existence of denitrifying phosphorus removing bacteria (DPB), evaluate the contribution of DPB to biological nutrient removal, and enhance the denitrifying phosphorus removal in the A2/O OD process, a pilot-scale A2/O OD plant (375 L) was conducted. At the same time batch tests using sequence batch reactors (12 L and 4 L) were operated to reveal the significance of anoxic phosphorus removal. The results indicated that: The average removal efficiency of COD, NH4+, PO43−, and TN were 88.2%, 92.6%, 87.8%, and 73.1%, respectively, when the steady state of the pilotscale A2/O OD plant was reached during 31–73 d, demonstrating a good denitrifying phosphorus removal performance. Phosphorus uptake took place in the anoxic zone by poly-phosphorus accumulating organisms NO2− could be used as electron receptors in denitrifying phosphorus removal, and the phosphorus uptake rate with NO2− as the electron receptor was higher than that with NO3− when the initial concentration of either NO2− or NO3− was 40 mg/L.
Keyword wastewater treatment
anaerobic-anoxic (A(2)/O)
oxidation ditch (OD)
biological phosphorus removal
denitrifying phosphorus removal
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
Advanced Water Management Centre Publications
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 12 Nov 2009, 12:03:34 EST by Mr Andrew Martlew on behalf of Advanced Water Management Centre