Application of nitrifying granules to improvement of nitrification activity in activated sludge process

Naohiro Kishida, Ryo Totsuka, Atsushi Kono, Mikiya Kurasawa, Motoki Ogiwara, Satoshi Tsuneda

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Nitrifying granules were used to improve nitrification performance of activated sludge process under high organic load. After inoculation of nitrifying granules, nitrification activity immediately increased, and kept for at least 70 days. Fluorescence in situ hybridisation analysis confirmed that nitrifying bacteria were retained in the granules even though nitrifying granules had been served in the organic wastewater treatment reactor for 70 days. Nitrification performance strongly depended on C/N ratio of the influent wastewater. Nitrifying granules that had been statically stored for 100 days could completely recover ammonia removal rate within 15 days after inoculation to ammonia-rich solution.

    Original languageEnglish
    Pages (from-to)103-111
    Number of pages9
    JournalInternational Journal of Environment and Waste Management
    Volume7
    Issue number1-2
    DOIs
    Publication statusPublished - 2011

    Fingerprint

    Activated sludge process
    Nitrification
    activated sludge
    nitrification
    inoculation
    Ammonia
    ammonia
    nitrifying bacterium
    Wastewater treatment
    Bacteria
    Wastewater
    fluorescence
    Fluorescence
    wastewater

    Keywords

    • Aerobic granules
    • Bioaugmentation
    • Biological nitrogen removal
    • Granulation
    • Microbial immobilisation
    • Nitrification
    • Nitrifying granules
    • Wastewater treatment

    ASJC Scopus subject areas

    • Environmental Engineering
    • Waste Management and Disposal

    Cite this

    Application of nitrifying granules to improvement of nitrification activity in activated sludge process. / Kishida, Naohiro; Totsuka, Ryo; Kono, Atsushi; Kurasawa, Mikiya; Ogiwara, Motoki; Tsuneda, Satoshi.

    In: International Journal of Environment and Waste Management, Vol. 7, No. 1-2, 2011, p. 103-111.

    Research output: Contribution to journalArticle

    Kishida, Naohiro ; Totsuka, Ryo ; Kono, Atsushi ; Kurasawa, Mikiya ; Ogiwara, Motoki ; Tsuneda, Satoshi. / Application of nitrifying granules to improvement of nitrification activity in activated sludge process. In: International Journal of Environment and Waste Management. 2011 ; Vol. 7, No. 1-2. pp. 103-111.
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