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Production of nitrate spikes in a model of ammonium biodegradation
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Production of nitrate spikes in a model of ammonium biodegradation
Moyles, Iain R.; Fowler, Andrew C.
Date:
2018
Publication:
Theoretical Ecology; 11 (3), pp. 333-350
Publication type:
Article
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.
Description:
peer-reviewed
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