Temperature dependence for anammox bacteria enriched from freshwater sediments

• OSAKA Toshifumi

  Department of Life Science and Medical Bioscience, Waseda University

• KIMURA Yuya

  Hitachi Plant Technologies Ltd.

• OTSUBO Yosuke

  Department of Life Science and Medical Bioscience, Waseda University

• SUWA Yuichi

  Department of Biological Science, Chuo University

• TSUNEDA Satoshi

  Department of Life Science and Medical Bioscience, Waseda University

• ISAKA Kazuichi

  Hitachi Plant Technologies Ltd.

抄録

The anoxic ammonium oxidation (anammox) process has been regarded as an attractive alternative process to treat wastewater containing high ammonium concentrations. By the implementation of anammox process at moderately low temperatures (<25℃), the anammox process will be applied to more various industrial wastewater treatments. In this study, we established enrichment cultures of anammox bacteria from freshwater sediments by using an up-flow column reactor equipped with porous polyester nonwoven fabric at moderately low temperatures. Their nitrogen conversion rates reached 0.07-0.26 kg-N/m^3/d. Phylogenetic analysis based on 16S rRNA gene from enrichment cultures revealed the presence of various anammox bacteria affiliated with unknown anammox bacteria as well as known anammox candidates, i.e., Candidatus Kuenenia stuttgartiensis and Candidatus Brocadia fulgida, Candidatus Scalindua wagneri. Anammox bacterial populations were influenced by enrichment conditions, i.e., seed sediments and temperature.

収録刊行物

• Journal of bioscience and bioengineering

  Journal of bioscience and bioengineering 114 (4), 429-434, 2012-10-25

  公益社団法人日本生物工学会

キーワード

• Anammox
• Biological nitrogen cycle
• Moderately low temperature
• Freshwater environment
• 16S rRNA phylogenic analysis

詳細情報

• CRID: 1571698602795621504
• NII論文ID: 110009543729
• NII書誌ID: AA11307678
• ISSN: 13891723
• 本文言語コード: en
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