First full-scale nitritation-anammox plant using gel entrapment technology for ammonia plant effluent

Kazuichi Isaka*, Yuya Kimura, Masahiro Matsuura, Toshifumi Osaka, Satoshi Tsuneda

*この研究の対応する著者

    研究成果: Article査読

    62 被引用数 (Scopus)

    抄録

    The first full-scale nitritation-anammox process using gel entrapment technology was evaluated for nitrogen removal. Ammonia plant effluents contained not only ammonium but also methanol, an anammox inhibitor. The nitrogen concentration and loading design were 690 mg/L and 400 kg-N/d, respectively. A nitritation reactor (170 m3) filled with nitrification gel carriers was started up on day 20, with a resulting nitrification efficiency of 58%. A stable nitritation performance was observed without significant nitrate production for >1 year. A nitrogen conversion rate of 3.2 kg-N/m3/d was observed on the anammox reactor (100 m3) filled with anammox gel carrier on day 69. The full-scale anammox reactor could be started up in approximately 2 months. Subsequently, stable nitrogen removal performance was observed for >1 year. The average nitrogen loading, nitrogen conversion rate, and total nitrogen removal on the anammox reactor were 3.6 kg-N/m3/d, 3.0 kg-N/m3/d and 330 kg-N/d, respectively. The nitrogen removal performance obtained in this study will facilitate further application of the anammox processes to many types of industrial wastewater treatment.

    本文言語English
    ページ(範囲)115-122
    ページ数8
    ジャーナルBiochemical Engineering Journal
    122
    DOI
    出版ステータスPublished - 2017 6月 15

    ASJC Scopus subject areas

    • バイオテクノロジー
    • バイオエンジニアリング
    • 環境工学
    • 生体医工学

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