Production of nitrate spikes in a model of ammonium biodegradation

I. R. Moyles, A. C. Fowler

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)333-350
Number of pages18
JournalTheoretical Ecology
Volume11
Issue number3
DOIs
Publication statusPublished - 1 Sep 2018

Keywords

  • Ammonium plume
  • Bacterial competition
  • Nitrification
  • Spatial oscillations

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