Selection and dominance mechanisms of denitrifying phosphate-accumulating organisms in biological phosphate removal process

Johwan Ahn; Tomotaka Daidou; Satoshi Tsuneda; Akira Hirata

doi:10.1023/A:1013726812529

Selection and dominance mechanisms of denitrifying phosphate-accumulating organisms in biological phosphate removal process

Johwan Ahn, Tomotaka Daidou, Satoshi Tsuneda, Akira Hirata

School of Advanced Science and Engineering

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

21 Citations (Scopus)

Abstract

A sequencing batch reactor under different electron acceptor conditions was operated serially to investigate the selection and dominance mechanisms of denitrifying phosphate-accumulating organisms (DNPAOs) in a biological nutrient removal process. The presence of a small amount of NO₃^- at the start of the anaerobic phase stimulated the selection of DNPAOs in an anaerobic/aerobic system, and switching O₂ to NO₃^- as an electron acceptor enhanced the activity of anoxic phosphate uptake.

Original language	English
Article number	391608
Pages (from-to)	2005-2008
Number of pages	4
Journal	Biotechnology Letters
Volume	23
Issue number	24
DOIs	https://doi.org/10.1023/A:1013726812529
Publication status	Published - 2001 Jan 1

Keywords

Denitrifying phosphate-accumulating organisms
Electron acceptor
Enhanced biological phosphate removal
Fluorescent in situ hybridization

ASJC Scopus subject areas

Biotechnology
Bioengineering
Applied Microbiology and Biotechnology

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abstract = "A sequencing batch reactor under different electron acceptor conditions was operated serially to investigate the selection and dominance mechanisms of denitrifying phosphate-accumulating organisms (DNPAOs) in a biological nutrient removal process. The presence of a small amount of NO3- at the start of the anaerobic phase stimulated the selection of DNPAOs in an anaerobic/aerobic system, and switching O2 to NO3- as an electron acceptor enhanced the activity of anoxic phosphate uptake.",

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AU - Daidou, Tomotaka

AU - Tsuneda, Satoshi

AU - Hirata, Akira

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Y1 - 2001/1/1

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AB - A sequencing batch reactor under different electron acceptor conditions was operated serially to investigate the selection and dominance mechanisms of denitrifying phosphate-accumulating organisms (DNPAOs) in a biological nutrient removal process. The presence of a small amount of NO3- at the start of the anaerobic phase stimulated the selection of DNPAOs in an anaerobic/aerobic system, and switching O2 to NO3- as an electron acceptor enhanced the activity of anoxic phosphate uptake.

KW - Denitrifying phosphate-accumulating organisms

KW - Electron acceptor

KW - Enhanced biological phosphate removal

KW - Fluorescent in situ hybridization

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Selection and dominance mechanisms of denitrifying phosphate-accumulating organisms in biological phosphate removal process

Abstract

Keywords

ASJC Scopus subject areas

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