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

Johwan Ahn, Tomotaka Daidou, Satoshi Tsuneda, Akira Hirata

Research output: Contribution to journalArticle

20 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 languageEnglish
Article number391608
Pages (from-to)2005-2008
Number of pages4
JournalBiotechnology Letters
Volume23
Issue number24
DOIs
Publication statusPublished - 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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