Kinetics and stoichiometry in the biological phosphorus removal process with short cycle times

Takahiro Kuba, M. C M Van Loosdrecht, E. Murnleitner, J. J. Heijnen

研究成果: ジャーナルへの寄稿記事

28 引用 (Scopus)

抄録

Aerobic or denitrifying biological phosphorus removal in a sequencing batch rector (SBR) with short repetitive anaerobic-aerobic (A/O) or anaerobic-anoxic (A2) cycling has been studied. These conditions resemble processes with large internal recycle flows. Under these conditions the fatty acid dosage per anaerobic phase is low compared to a conventional SBR or plug how process. It was shown that at the same sludge retention time (SRT) the average poly-β-hydroxybutyrate (PHB) content of the biomass decreased, with increasing the number of A/O or A2 cycles. This had no direct effect on the biological phosphorus removal. In the A2 SBR, however, phosphorus removal was deteriorating due to transfer of nitrate to the anaerobic phase. Most mathematical models for biological phosphorus removal processes show a relation between the biomass growth rate and the PHB content. This research shows that such a unique relation does not exist, since at one SRT different 'steady state' PHB levels could be obtained, depending on the cycle number and the use of oxygen or nitrate as an electron acceptor. This indicates the need for an alternative kinetic model.

元の言語英語
ページ(範囲)918-928
ページ数11
ジャーナルWater Research
31
発行部数4
DOI
出版物ステータス出版済み - 4 1 1997
外部発表Yes

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stoichiometry
Stoichiometry
Phosphorus
phosphorus
kinetics
Kinetics
Nitrates
Biomass
sludge
nitrate
biomass
Fatty acids
fatty acid
Mathematical models
electron
oxygen
Oxygen
removal
Electrons

All Science Journal Classification (ASJC) codes

  • Earth-Surface Processes

これを引用

Kinetics and stoichiometry in the biological phosphorus removal process with short cycle times. / Kuba, Takahiro; Van Loosdrecht, M. C M; Murnleitner, E.; Heijnen, J. J.

:: Water Research, 巻 31, 番号 4, 01.04.1997, p. 918-928.

研究成果: ジャーナルへの寄稿記事

Kuba, Takahiro ; Van Loosdrecht, M. C M ; Murnleitner, E. ; Heijnen, J. J. / Kinetics and stoichiometry in the biological phosphorus removal process with short cycle times. :: Water Research. 1997 ; 巻 31, 番号 4. pp. 918-928.
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