Modeling the aerobic metabolism of polyphosphate-accumulating organisms enriched with propionate as a carbon source

Adrian Oehmen; Raymond J. Zeng; Jurg Keller; Zhiguo Yuan

doi:10.1002/j.1554-7531.2007.tb00347.x

Modeling the aerobic metabolism of polyphosphate-accumulating organisms enriched with propionate as a carbon source

Adrian Oehmen
, Raymond J. Zeng
, Jurg Keller
, Zhiguo Yuan

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

34 Citations (Scopus)

Abstract

In enhanced biological phosphorus removal (EBPR) systems, polyphosphate-accumulating organisms (PAOs) are primarily responsible for removing phosphate from wastewater. Propionate is an abundant carbon substrate in many EBPR plants and has been suggested to provide PAOs an advantage over their carbon competitors - the glycogen-accumulating organisms (GAOs). The aerobic metabolism of PAOs enriched with a propionate carbon source is studied in this paper. A metabolic model is proposed and experimentally validated to characterize the aerobic biochemical transformations by PAOs. The model predicts very well the experimental data obtained from the enriched PAO culture through solid-, liquid-, and gas-phase analyses. This model may be combined with previously formulated metabolic models to better describe the biochemical activity of PAOs with acetate and propionate as the primary carbon sources. Furthermore, it can also facilitate the study of the effect of different carbon sources on PAO-GAO competition.

Original language	English
Pages (from-to)	2477-2486
Journal	Water Environment Research
Volume	79
Issue number	13
DOIs	https://doi.org/10.1002/j.1554-7531.2007.tb00347.x
Publication status	Published - 2007
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

The authors thank the Cooperative Research Centre for Waste Management and Pollution Control (Sydney, Australia) for financial support of this work. Beatrice Keller-Lehmann and Jianguang Li (University of Queensland, St. Lucia, Australia) are gratefully acknowledged for providing analytical services. Adrian Oehmen acknowledges the financial support of Fundação para a Ciência e a Tecnologia (Lisbon, Portugal), for the postdoctoral grant SFRH/BPD/20862/2004.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 14 Life Below Water

Research Keywords

Enhanced biological phosphorus removal
Glycogen-accumulating organisms
Metabolic model
Polyphosphate-accumulating organisms
Propionate
Titration and offgas analysis

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title = "Modeling the aerobic metabolism of polyphosphate-accumulating organisms enriched with propionate as a carbon source",

abstract = "In enhanced biological phosphorus removal (EBPR) systems, polyphosphate-accumulating organisms (PAOs) are primarily responsible for removing phosphate from wastewater. Propionate is an abundant carbon substrate in many EBPR plants and has been suggested to provide PAOs an advantage over their carbon competitors - the glycogen-accumulating organisms (GAOs). The aerobic metabolism of PAOs enriched with a propionate carbon source is studied in this paper. A metabolic model is proposed and experimentally validated to characterize the aerobic biochemical transformations by PAOs. The model predicts very well the experimental data obtained from the enriched PAO culture through solid-, liquid-, and gas-phase analyses. This model may be combined with previously formulated metabolic models to better describe the biochemical activity of PAOs with acetate and propionate as the primary carbon sources. Furthermore, it can also facilitate the study of the effect of different carbon sources on PAO-GAO competition.",

keywords = "Enhanced biological phosphorus removal, Glycogen-accumulating organisms, Metabolic model, Polyphosphate-accumulating organisms, Propionate, Titration and offgas analysis",

author = "Adrian Oehmen and Zeng, \{Raymond J.\} and Jurg Keller and Zhiguo Yuan",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

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T1 - Modeling the aerobic metabolism of polyphosphate-accumulating organisms enriched with propionate as a carbon source

AU - Oehmen, Adrian

AU - Zeng, Raymond J.

AU - Keller, Jurg

AU - Yuan, Zhiguo

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2007

Y1 - 2007

N2 - In enhanced biological phosphorus removal (EBPR) systems, polyphosphate-accumulating organisms (PAOs) are primarily responsible for removing phosphate from wastewater. Propionate is an abundant carbon substrate in many EBPR plants and has been suggested to provide PAOs an advantage over their carbon competitors - the glycogen-accumulating organisms (GAOs). The aerobic metabolism of PAOs enriched with a propionate carbon source is studied in this paper. A metabolic model is proposed and experimentally validated to characterize the aerobic biochemical transformations by PAOs. The model predicts very well the experimental data obtained from the enriched PAO culture through solid-, liquid-, and gas-phase analyses. This model may be combined with previously formulated metabolic models to better describe the biochemical activity of PAOs with acetate and propionate as the primary carbon sources. Furthermore, it can also facilitate the study of the effect of different carbon sources on PAO-GAO competition.

AB - In enhanced biological phosphorus removal (EBPR) systems, polyphosphate-accumulating organisms (PAOs) are primarily responsible for removing phosphate from wastewater. Propionate is an abundant carbon substrate in many EBPR plants and has been suggested to provide PAOs an advantage over their carbon competitors - the glycogen-accumulating organisms (GAOs). The aerobic metabolism of PAOs enriched with a propionate carbon source is studied in this paper. A metabolic model is proposed and experimentally validated to characterize the aerobic biochemical transformations by PAOs. The model predicts very well the experimental data obtained from the enriched PAO culture through solid-, liquid-, and gas-phase analyses. This model may be combined with previously formulated metabolic models to better describe the biochemical activity of PAOs with acetate and propionate as the primary carbon sources. Furthermore, it can also facilitate the study of the effect of different carbon sources on PAO-GAO competition.

KW - Enhanced biological phosphorus removal

KW - Glycogen-accumulating organisms

KW - Metabolic model

KW - Polyphosphate-accumulating organisms

KW - Propionate

KW - Titration and offgas analysis

UR - https://www.scopus.com/pages/publications/39849086431

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U2 - 10.1002/j.1554-7531.2007.tb00347.x

DO - 10.1002/j.1554-7531.2007.tb00347.x

M3 - RGC 21 - Publication in refereed journal

C2 - 18198693

SN - 1061-4303

VL - 79

SP - 2477

EP - 2486

JO - Water Environment Research

JF - Water Environment Research

IS - 13

ER -

Modeling the aerobic metabolism of polyphosphate-accumulating organisms enriched with propionate as a carbon source

Abstract

Bibliographical note

Funding

UN SDGs

Research Keywords

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