Simulation of multispecies biofilm development in three dimensions

Daniel R. Noguera, Gonzalo Pizarro, David A. Stahl, Bruce E. Rittmann

Research output: Contribution to journalArticlepeer-review

76 Scopus citations

Abstract

A mathematical model to simulate the three-dimensional growth of multispecies anaerobic biofilms is developed and tested with a two-species biofilm composed of sulfate-reducing bacteria and methanogens. The numerical approach is based on the separation of biological, physical, and chemical phenomena so that quasi-steady-state conditions can be used in the solution. Simulations with Desulfovibrio vulgaris and Methanobacterium formicicum result in the formation of a biofilm heterogeneous in structure and composition. The model predicts different biofilm structures in the absence of sulfate, when a syntrophic association between the two organisms develops, and in the presence of sulfate, when the two organisms compete for the available hydrogen.

Original languageEnglish (US)
Pages (from-to)123-130
Number of pages8
JournalWater Science and Technology
Volume39
Issue number7
DOIs
StatePublished - Jun 5 1999
Externally publishedYes

Keywords

  • 3D modeling
  • Anaerobic biofilms
  • Biofilm
  • Methanogenesis
  • Sulfate reducing bacteria

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

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