Modeling and experimental study on the anaerobic/aerobic/anoxic process for simultaneous nitrogen and phosphorus removal: The effect of acetate addition

Koichi Soejima, Shinya Matsumoto, Satoshi Ohgushi, Kensuke Naraki, Akihiko Terada, Satoshi Tsuneda*, Akira Hirata

*この研究の対応する著者

研究成果: Article査読

19 被引用数 (Scopus)

抄録

A mathematical model based on the simulation software AQUASIM was developed to validate an anaerobic/aerobic/anoxic (AOA) process that enables simultaneous nitrogen and phosphorus removal in a single reactor by adding external organic carbon to preclude excess aerobic phosphate uptake by polyphosphate-accumulating organisms (PAOs) and provide phosphate for denitrifying PAOs (DNPAOs). Aerobic batch tests after anaerobic phosphate release with different chemical oxygen demand (COD) concentrations indicated that the effect of COD concentration on the phosphate uptake preclusion could be expressed by a simple formula. The reduction factor reflecting the formula, which retards the aerobic phosphate uptake in the presence of COD, was added to the process rates of aerobic polyphosphate storage and PAOs growth in the model. The improved model, which included the reduction factor, reasonably matched the experimental result regarding aerobic phosphate uptake behavior whereas the model without it did not; thus, the former precisely predicts the AOA process behavior.

本文言語English
ページ(範囲)605-614
ページ数10
ジャーナルProcess Biochemistry
43
6
DOI
出版ステータスPublished - 2008 6月

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 生化学
  • 応用微生物学とバイオテクノロジー

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