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Nitrogen removal of anammox cultures under different enrichment conditions

机译：不同富集条件下厌氧氨氧化菌的脱氮

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摘要

Anammox bacteria in sludge from an anoxic tank of a municipal wastewater treatment plant at Nongkhaem, Bangkok, Thailand were enriched in two sequencing batch reactors (SBRs; SBR-1 and SBR-2), under different conditions. SBR-1 was open to the atmosphere, while SBR-2 was closed and flushed with a mixture of 95% argon and 5% CO_2 during the fill period in order to provide strict anaerobic conditions. The specific nitrogen removal rates of SBR-1 and SBR-2 were 0.43 g N/g VSS-d and 2.59 g N/g VSS-d, respectively. Denaturing gradient gel electrophoresis (DGGE) analyses showed differences in band patterns among the Nongkhaem sludge and the two enrichment cultures. Based on fluorescent in situ hybridization (FISH), the anammox bacteria in both systems were either "Candidatus Brocadia anammoxidans" or "Candidates Kuenenia stuttgartiensis". The results from this study demonstrate the potential of alternative anammox systems for nitrogen removal and provide information on the microbial communities of anammox cultures under different enrichment conditions.
机译：来自泰国曼谷Nongkhaem的市政废水处理厂的缺氧槽中污泥中的厌氧菌细菌在不同条件下的两个顺序分批反应器（SBR，SBR-1和SBR-2）中富集。 SBR-1向大气开放，而SBR-2关闭并在填充期间用95％氩气和5％CO_2的混合物冲洗，以提供严格的厌氧条件。 SBR-1和SBR-2的比氮去除率分别为0.43 g N / g VSS-d和2.59 g N / g VSS-d。变性梯度凝胶电泳（DGGE）分析显示，Nongkhaem污泥和两种浓缩培养物的能带模式存在差异。基于荧光原位杂交（FISH），两个系统中的厌氧细菌均为“ Canaidatus Brocadia anammoxidans”或“ Candidates Kuenenia stuttgartiensis”。这项研究的结果证明了替代性厌氧氨氧化系统除氮的潜力，并提供了有关在不同富集条件下厌氧氨氧化菌培养物微生物群落的信息。

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  • 来源
    《Journal of Environmental Science and Health》 |2010年第14期|p.1832-1838|共7页
  • 作者

    KULLAYA SARICHEEWIN; SANYA SIRIVITHAYAPAKORN; PONGSAK (LEK) NOOPHAN; CHALERMRAJ WANTAWIN; SOMKIET TECHKARNJANARUK; JUNKO MUNAKATA-MARR;

  • 作者单位

    Department ofEnvironmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand;

    Department ofEnvironmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand;

    Department ofEnvironmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand;

    Department of Environmental Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, Bangkok, Thailand;

    Biochemical Engineering and Pilot Plant Research and Development Unit, National Center for Genetics Engineering and Biotechnology, King Mongkut 's University of Technology Thonburi, Bangkhuntien, Bangkok, Thailand;

    Environmental Science and Engineering Division, Colorado School of Mines, Golden, Colorado, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    anammox; enrichment; nitrogen removal; SBR; FISH; DGGE;

    机译：厌氧菌丰富;脱氮SBR;鱼;DGGE;

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