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 language | English (US) |
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Pages (from-to) | 123-130 |
Number of pages | 8 |
Journal | Water Science and Technology |
Volume | 39 |
Issue number | 7 |
DOIs | |
State | Published - 1999 |
Externally published | Yes |
Keywords
- 3D modeling
- Anaerobic biofilms
- Biofilm
- Methanogenesis
- Sulfate reducing bacteria
ASJC Scopus subject areas
- Environmental Engineering
- Water Science and Technology