Production of nitrate spikes in a model of ammonium biodegradation

I. R. Moyles; A. C. Fowler

doi:10.1007/s12080-018-0370-7

Production of nitrate spikes in a model of ammonium biodegradation

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Abstract

Nitrification at the site of a contaminant ammonium plume from a former coal carbonisation plant can be modelled with three competing bacterial populations of Nitrosomonas, Nitrobacter, and Brocadia anammoxidans. Oscillations of chemical species at the site can be explained by a reduced model of ammonium competition between Nitrosomonas and B. anammoxidans which effectively acts as an activator-inhibitor system. Stable oscillations occur in conditions of low nutrient (ammonium) supply and this causes a spatial travelling wave in a borehole profile when diffusion is introduced.

Original language	English
Pages (from-to)	333-350
Number of pages	18
Journal	Theoretical Ecology
Volume	11
Issue number	3
DOIs	https://doi.org/10.1007/s12080-018-0370-7
Publication status	Published - 1 Sep 2018

Keywords

Ammonium plume
Bacterial competition
Nitrification
Spatial oscillations

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10.1007/s12080-018-0370-7

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title = "Production of nitrate spikes in a model of ammonium biodegradation",

abstract = "Nitrification at the site of a contaminant ammonium plume from a former coal carbonisation plant can be modelled with three competing bacterial populations of Nitrosomonas, Nitrobacter, and Brocadia anammoxidans. Oscillations of chemical species at the site can be explained by a reduced model of ammonium competition between Nitrosomonas and B. anammoxidans which effectively acts as an activator-inhibitor system. Stable oscillations occur in conditions of low nutrient (ammonium) supply and this causes a spatial travelling wave in a borehole profile when diffusion is introduced.",

keywords = "Ammonium plume, Bacterial competition, Nitrification, Spatial oscillations",

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AU - Fowler, A. C.

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AB - Nitrification at the site of a contaminant ammonium plume from a former coal carbonisation plant can be modelled with three competing bacterial populations of Nitrosomonas, Nitrobacter, and Brocadia anammoxidans. Oscillations of chemical species at the site can be explained by a reduced model of ammonium competition between Nitrosomonas and B. anammoxidans which effectively acts as an activator-inhibitor system. Stable oscillations occur in conditions of low nutrient (ammonium) supply and this causes a spatial travelling wave in a borehole profile when diffusion is introduced.

KW - Ammonium plume

KW - Bacterial competition

KW - Nitrification

KW - Spatial oscillations

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JO - Theoretical Ecology

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Production of nitrate spikes in a model of ammonium biodegradation

Abstract

Keywords

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