Tailoring of highly efficient nitrifying biofilms in fluidized bed for ammonia-rich industrial wastewater treatment

Satoshi Tsuneda, T. Miyoshi, Y. Aoi, A. Hirata

    Research output: Contribution to journalArticle

    19 Citations (Scopus)

    Abstract

    We proposed two tailoring methods for efficient nitrifying biofilms on particles which are expected to be used in fluidized bed in nitrogen removal processes for industrial wastewaters. The first method was examined with gradual reduction of the hydraulic retention time in continuous feeding reactor to form biofilm with high nitrification ability. As a result, nitrification rate was successfully improved mainly due to acclimation of nitrifying bacteria to higher loading. The second tailoring method for nitrifying biofilm started with the biofilm which had been previously constructed in synthetic domestic wastewater containing high concentration of NH4 +-N as well as various biodegradable organic compounds. Stepwise reduction of C/N ratio in inlet wastewater was performed during one month simultaneously with observation of microbial population dynamics in the biofilm using fluorescent in situ hybridization (FISH) analysis. As a result, this acclimation process promoted occupation of the biofilm by ammonia-oxidizing bacteria and resulted in making suitable biofilm structure for nitrification of ammonia-rich industrial wastewater. Moreover, it is confirmed that this new tailoring method greatly shortened required time to obtain nitrifying biofilms.

    Original languageEnglish
    Pages (from-to)357-362
    Number of pages6
    JournalWater Science and Technology
    Volume42
    Issue number3-4
    Publication statusPublished - 2000

    Fingerprint

    Biofilms
    Wastewater treatment
    Fluidized beds
    biofilm
    Ammonia
    ammonia
    Nitrification
    Wastewater
    nitrification
    wastewater
    acclimation
    Bacteria
    nitrifying bacterium
    Population dynamics
    Nitrogen removal
    wastewater treatment
    Organic compounds
    occupation
    organic compound
    population dynamics

    Keywords

    • Biofilm
    • Fluidized bed
    • Fluorescent in situ hybridization
    • Industrial wastewater
    • Nitrification
    • Population dynamics

    ASJC Scopus subject areas

    • Water Science and Technology

    Cite this

    Tailoring of highly efficient nitrifying biofilms in fluidized bed for ammonia-rich industrial wastewater treatment. / Tsuneda, Satoshi; Miyoshi, T.; Aoi, Y.; Hirata, A.

    In: Water Science and Technology, Vol. 42, No. 3-4, 2000, p. 357-362.

    Research output: Contribution to journalArticle

    @article{1b5e406b4f1f4f9f8bc066b8197b7522,
    title = "Tailoring of highly efficient nitrifying biofilms in fluidized bed for ammonia-rich industrial wastewater treatment",
    abstract = "We proposed two tailoring methods for efficient nitrifying biofilms on particles which are expected to be used in fluidized bed in nitrogen removal processes for industrial wastewaters. The first method was examined with gradual reduction of the hydraulic retention time in continuous feeding reactor to form biofilm with high nitrification ability. As a result, nitrification rate was successfully improved mainly due to acclimation of nitrifying bacteria to higher loading. The second tailoring method for nitrifying biofilm started with the biofilm which had been previously constructed in synthetic domestic wastewater containing high concentration of NH4 +-N as well as various biodegradable organic compounds. Stepwise reduction of C/N ratio in inlet wastewater was performed during one month simultaneously with observation of microbial population dynamics in the biofilm using fluorescent in situ hybridization (FISH) analysis. As a result, this acclimation process promoted occupation of the biofilm by ammonia-oxidizing bacteria and resulted in making suitable biofilm structure for nitrification of ammonia-rich industrial wastewater. Moreover, it is confirmed that this new tailoring method greatly shortened required time to obtain nitrifying biofilms.",
    keywords = "Biofilm, Fluidized bed, Fluorescent in situ hybridization, Industrial wastewater, Nitrification, Population dynamics",
    author = "Satoshi Tsuneda and T. Miyoshi and Y. Aoi and A. Hirata",
    year = "2000",
    language = "English",
    volume = "42",
    pages = "357--362",
    journal = "Water Science and Technology",
    issn = "0273-1223",
    publisher = "IWA Publishing",
    number = "3-4",

    }

    TY - JOUR

    T1 - Tailoring of highly efficient nitrifying biofilms in fluidized bed for ammonia-rich industrial wastewater treatment

    AU - Tsuneda, Satoshi

    AU - Miyoshi, T.

    AU - Aoi, Y.

    AU - Hirata, A.

    PY - 2000

    Y1 - 2000

    N2 - We proposed two tailoring methods for efficient nitrifying biofilms on particles which are expected to be used in fluidized bed in nitrogen removal processes for industrial wastewaters. The first method was examined with gradual reduction of the hydraulic retention time in continuous feeding reactor to form biofilm with high nitrification ability. As a result, nitrification rate was successfully improved mainly due to acclimation of nitrifying bacteria to higher loading. The second tailoring method for nitrifying biofilm started with the biofilm which had been previously constructed in synthetic domestic wastewater containing high concentration of NH4 +-N as well as various biodegradable organic compounds. Stepwise reduction of C/N ratio in inlet wastewater was performed during one month simultaneously with observation of microbial population dynamics in the biofilm using fluorescent in situ hybridization (FISH) analysis. As a result, this acclimation process promoted occupation of the biofilm by ammonia-oxidizing bacteria and resulted in making suitable biofilm structure for nitrification of ammonia-rich industrial wastewater. Moreover, it is confirmed that this new tailoring method greatly shortened required time to obtain nitrifying biofilms.

    AB - We proposed two tailoring methods for efficient nitrifying biofilms on particles which are expected to be used in fluidized bed in nitrogen removal processes for industrial wastewaters. The first method was examined with gradual reduction of the hydraulic retention time in continuous feeding reactor to form biofilm with high nitrification ability. As a result, nitrification rate was successfully improved mainly due to acclimation of nitrifying bacteria to higher loading. The second tailoring method for nitrifying biofilm started with the biofilm which had been previously constructed in synthetic domestic wastewater containing high concentration of NH4 +-N as well as various biodegradable organic compounds. Stepwise reduction of C/N ratio in inlet wastewater was performed during one month simultaneously with observation of microbial population dynamics in the biofilm using fluorescent in situ hybridization (FISH) analysis. As a result, this acclimation process promoted occupation of the biofilm by ammonia-oxidizing bacteria and resulted in making suitable biofilm structure for nitrification of ammonia-rich industrial wastewater. Moreover, it is confirmed that this new tailoring method greatly shortened required time to obtain nitrifying biofilms.

    KW - Biofilm

    KW - Fluidized bed

    KW - Fluorescent in situ hybridization

    KW - Industrial wastewater

    KW - Nitrification

    KW - Population dynamics

    UR - http://www.scopus.com/inward/record.url?scp=0033732906&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0033732906&partnerID=8YFLogxK

    M3 - Article

    VL - 42

    SP - 357

    EP - 362

    JO - Water Science and Technology

    JF - Water Science and Technology

    SN - 0273-1223

    IS - 3-4

    ER -