Anammox (anaerobic ammonium oxidation) is an environment-friendly and cost-efficient nitrogen-removal process currently applied to high-ammonium-loaded wastewaters such as anaerobic digester effluents. In these wastewaters, dissolved methane is also present and should be removed to prevent greenhouse gas emissions into the environment. Potentially, another recently discovered microbial pathway, n-damo (nitrite-dependent anaerobic methane oxidation) could be used for this purpose. In the present paper, we explore the feasibility of simultaneously removing methane and ammonium anaerobically, starting with granules from a full-scale anammox bioreactor. We describe the development of a co-culture of anammox and n-damo bacteria using a medium containing methane, ammonium and nitrite. The results are discussed in the context of other recent studies on the application of anaerobic methane- and ammonia-oxidizing bacteria for wastewater treatment.
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December 2011
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Conference Article|
November 21 2011
Combined anaerobic ammonium and methane oxidation for nitrogen and methane removal
Baoli Zhu;
Baoli Zhu
*Department of Microbiology, IWWR, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
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Jaime Sánchez;
Jaime Sánchez
*Department of Microbiology, IWWR, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
†Universidad del Valle, P.O. Box 25360, Cali, Colombia
‡Universidad de los Andes, Mérida, Venezuela
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Theo A. van Alen;
Theo A. van Alen
*Department of Microbiology, IWWR, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
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Janeth Sanabria;
Janeth Sanabria
†Universidad del Valle, P.O. Box 25360, Cali, Colombia
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Mike S.M. Jetten;
Mike S.M. Jetten
*Department of Microbiology, IWWR, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
§Delft University of Technology, Department Biotechnology, Delft, 2628 BC, The Netherlands
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Katharina F. Ettwig;
Katharina F. Ettwig
*Department of Microbiology, IWWR, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
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Boran Kartal
Boran Kartal
1
*Department of Microbiology, IWWR, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
1To whom correspondence should be addressed (email kartal@science.ru.nl).
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Publisher: Portland Press Ltd
Received:
August 22 2011
Online ISSN: 1470-8752
Print ISSN: 0300-5127
© The Authors Journal compilation © 2011 Biochemical Society
2011
Biochem Soc Trans (2011) 39 (6): 1822–1825.
Article history
Received:
August 22 2011
Citation
Baoli Zhu, Jaime Sánchez, Theo A. van Alen, Janeth Sanabria, Mike S.M. Jetten, Katharina F. Ettwig, Boran Kartal; Combined anaerobic ammonium and methane oxidation for nitrogen and methane removal. Biochem Soc Trans 1 December 2011; 39 (6): 1822–1825. doi: https://doi.org/10.1042/BST20110704
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