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

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)605-614
    Number of pages10
    JournalProcess Biochemistry
    Volume43
    Issue number6
    DOIs
    Publication statusPublished - 2008 Jun

    Fingerprint

    Phosphorus
    Polyphosphates
    Phosphates
    Acetates
    Nitrogen
    Biological Oxygen Demand Analysis
    Chemical oxygen demand
    Organic carbon
    Theoretical Models
    Carbon
    Software
    Mathematical models
    Growth

    Keywords

    • Anaerobic/aerobic/anoxic process (AOA process)
    • AQUASIM
    • Denitrifying polyphosphate-accumulating organisms (DNPAOs)
    • Enhanced biological phosphorus removal (EBPR)
    • Process modeling
    • Sequencing batch reactor (SBR)

    ASJC Scopus subject areas

    • Biochemistry
    • Organic Chemistry
    • Engineering (miscellaneous)
    • Industrial and Manufacturing Engineering

    Cite this

    Modeling and experimental study on the anaerobic/aerobic/anoxic process for simultaneous nitrogen and phosphorus removal : The effect of acetate addition. / Soejima, Koichi; Matsumoto, Shinya; Ohgushi, Satoshi; Naraki, Kensuke; Terada, Akihiko; Tsuneda, Satoshi; Hirata, Akira.

    In: Process Biochemistry, Vol. 43, No. 6, 06.2008, p. 605-614.

    Research output: Contribution to journalArticle

    Soejima, Koichi ; Matsumoto, Shinya ; Ohgushi, Satoshi ; Naraki, Kensuke ; Terada, Akihiko ; Tsuneda, Satoshi ; Hirata, Akira. / Modeling and experimental study on the anaerobic/aerobic/anoxic process for simultaneous nitrogen and phosphorus removal : The effect of acetate addition. In: Process Biochemistry. 2008 ; Vol. 43, No. 6. pp. 605-614.
    @article{0594ee4bcee04d85a70ce921e5426aa7,
    title = "Modeling and experimental study on the anaerobic/aerobic/anoxic process for simultaneous nitrogen and phosphorus removal: The effect of acetate addition",
    abstract = "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.",
    keywords = "Anaerobic/aerobic/anoxic process (AOA process), AQUASIM, Denitrifying polyphosphate-accumulating organisms (DNPAOs), Enhanced biological phosphorus removal (EBPR), Process modeling, Sequencing batch reactor (SBR)",
    author = "Koichi Soejima and Shinya Matsumoto and Satoshi Ohgushi and Kensuke Naraki and Akihiko Terada and Satoshi Tsuneda and Akira Hirata",
    year = "2008",
    month = "6",
    doi = "10.1016/j.procbio.2008.01.022",
    language = "English",
    volume = "43",
    pages = "605--614",
    journal = "Process Biochemistry",
    issn = "0032-9592",
    publisher = "Elsevier BV",
    number = "6",

    }

    TY - JOUR

    T1 - Modeling and experimental study on the anaerobic/aerobic/anoxic process for simultaneous nitrogen and phosphorus removal

    T2 - The effect of acetate addition

    AU - Soejima, Koichi

    AU - Matsumoto, Shinya

    AU - Ohgushi, Satoshi

    AU - Naraki, Kensuke

    AU - Terada, Akihiko

    AU - Tsuneda, Satoshi

    AU - Hirata, Akira

    PY - 2008/6

    Y1 - 2008/6

    N2 - 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.

    AB - 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.

    KW - Anaerobic/aerobic/anoxic process (AOA process)

    KW - AQUASIM

    KW - Denitrifying polyphosphate-accumulating organisms (DNPAOs)

    KW - Enhanced biological phosphorus removal (EBPR)

    KW - Process modeling

    KW - Sequencing batch reactor (SBR)

    UR - http://www.scopus.com/inward/record.url?scp=42749093859&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=42749093859&partnerID=8YFLogxK

    U2 - 10.1016/j.procbio.2008.01.022

    DO - 10.1016/j.procbio.2008.01.022

    M3 - Article

    AN - SCOPUS:42749093859

    VL - 43

    SP - 605

    EP - 614

    JO - Process Biochemistry

    JF - Process Biochemistry

    SN - 0032-9592

    IS - 6

    ER -