Population dynamics in a sequencing batch reactor fed with glucose and operated for enhanced biological phosphorus removal

Gülsüm Emel Zengin; Nazik Artan; Derin Orhon; Adeline S.M. Chua; Hiroyasu Satoh; Takashi Mino

doi:10.1016/j.biortech.2010.01.044

Population dynamics in a sequencing batch reactor fed with glucose and operated for enhanced biological phosphorus removal

Gülsüm Emel Zengin^*
, Nazik Artan
, Derin Orhon
, Adeline S.M. Chua
, Hiroyasu Satoh
, Takashi Mino

^*Corresponding author for this work

Department of Environmental Engineering

Istanbul Technical University
Turkish Academy of Sciences
University of Malaya
The University of Tokyo

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

The study investigated the effect of glucose feeding as the sole carbon source on population dynamics in a sequencing batch reactor (SBR) operated for enhanced biological phosphorus removal (EBPR). The lab-scale SBR operation was started with a biomass taken from a WWTP plant performing EBPR and continued around two months. It exhibited a sequence of periods with different performance and biomass characteristics. The first period indicated predominant EBPR activity, involving phosphorus release in the anaerobic phase with PHA production as expected. Lactate generated from glucose fermentation was presumably converted to PHA by PAOs as an essential part of the EBPR activity. In the second period a major shift occurred in the population dynamics favoring the preferential growth and the predominance of GAOs which have the advantage of utilizing glucose directly and eventually the EBPR activity was deteriorated. The significant feature of the third period was the proliferation of filamentous microorganisms.

Original language	English
Pages (from-to)	4000-4005
Number of pages	6
Journal	Bioresource Technology
Volume	101
Issue number	11
DOIs	https://doi.org/10.1016/j.biortech.2010.01.044
Publication status	Published - Jun 2010

Funding

This work was conducted in the University of Tokyo, Graduate School of Frontier Sciences, Institute of Environmental Studies, Mino&Satoh Laboratory by the support of the Japanese Government Monbukagakusho:Mext 2003 Research Scholarship .

UN SDGs

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

SDG 6 Clean Water and Sanitation
SDG 14 Life Below Water

Keywords

Enhanced biological phosphorus removal
Glucose utilization
Glycogen accumulating organisms
PHA formation
Polyphosphate accumulating organisms

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10.1016/j.biortech.2010.01.044

Cite this

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title = "Population dynamics in a sequencing batch reactor fed with glucose and operated for enhanced biological phosphorus removal",

abstract = "The study investigated the effect of glucose feeding as the sole carbon source on population dynamics in a sequencing batch reactor (SBR) operated for enhanced biological phosphorus removal (EBPR). The lab-scale SBR operation was started with a biomass taken from a WWTP plant performing EBPR and continued around two months. It exhibited a sequence of periods with different performance and biomass characteristics. The first period indicated predominant EBPR activity, involving phosphorus release in the anaerobic phase with PHA production as expected. Lactate generated from glucose fermentation was presumably converted to PHA by PAOs as an essential part of the EBPR activity. In the second period a major shift occurred in the population dynamics favoring the preferential growth and the predominance of GAOs which have the advantage of utilizing glucose directly and eventually the EBPR activity was deteriorated. The significant feature of the third period was the proliferation of filamentous microorganisms.",

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T1 - Population dynamics in a sequencing batch reactor fed with glucose and operated for enhanced biological phosphorus removal

AU - Zengin, Gülsüm Emel

AU - Artan, Nazik

AU - Orhon, Derin

AU - Chua, Adeline S.M.

AU - Satoh, Hiroyasu

AU - Mino, Takashi

PY - 2010/6

Y1 - 2010/6

N2 - The study investigated the effect of glucose feeding as the sole carbon source on population dynamics in a sequencing batch reactor (SBR) operated for enhanced biological phosphorus removal (EBPR). The lab-scale SBR operation was started with a biomass taken from a WWTP plant performing EBPR and continued around two months. It exhibited a sequence of periods with different performance and biomass characteristics. The first period indicated predominant EBPR activity, involving phosphorus release in the anaerobic phase with PHA production as expected. Lactate generated from glucose fermentation was presumably converted to PHA by PAOs as an essential part of the EBPR activity. In the second period a major shift occurred in the population dynamics favoring the preferential growth and the predominance of GAOs which have the advantage of utilizing glucose directly and eventually the EBPR activity was deteriorated. The significant feature of the third period was the proliferation of filamentous microorganisms.

AB - The study investigated the effect of glucose feeding as the sole carbon source on population dynamics in a sequencing batch reactor (SBR) operated for enhanced biological phosphorus removal (EBPR). The lab-scale SBR operation was started with a biomass taken from a WWTP plant performing EBPR and continued around two months. It exhibited a sequence of periods with different performance and biomass characteristics. The first period indicated predominant EBPR activity, involving phosphorus release in the anaerobic phase with PHA production as expected. Lactate generated from glucose fermentation was presumably converted to PHA by PAOs as an essential part of the EBPR activity. In the second period a major shift occurred in the population dynamics favoring the preferential growth and the predominance of GAOs which have the advantage of utilizing glucose directly and eventually the EBPR activity was deteriorated. The significant feature of the third period was the proliferation of filamentous microorganisms.

KW - Enhanced biological phosphorus removal

KW - Glucose utilization

KW - Glycogen accumulating organisms

KW - PHA formation

KW - Polyphosphate accumulating organisms

UR - https://www.scopus.com/pages/publications/76749152222

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DO - 10.1016/j.biortech.2010.01.044

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VL - 101

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EP - 4005

JO - Bioresource Technology

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IS - 11

ER -

Population dynamics in a sequencing batch reactor fed with glucose and operated for enhanced biological phosphorus removal

Abstract

Funding

UN SDGs

Keywords

Access to Document

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