Comparison of spatial organization in top-down- and membrane-aerated biofilms: A numerical study

A. Bell, Y. Aoi, A. Terada, S. Tsuneda, A. Hirata

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The study of community structure in wastewater biofilms is made difficult by the slow growth rates and high environmental sensitivities of autotrophic nitrifiers. Simulations of such films can generate data quickly and without susceptibility to random environmental perturbation. This study uses a 2D cellular automaton model to compare the community structures of biofilms grown under top-down and membrane aeration conditions. This study found dramatic differences in community structure between the two approaches, most notably the emergence of a niche at the solid - biofilm interface that facilitates the growth of nitrite oxidizing bacteria.

Original languageEnglish
Pages (from-to)173-180
Number of pages8
JournalWater Science and Technology
Volume52
Issue number7
DOIs
Publication statusPublished - 2005 Jan 1

Keywords

  • Biological nitrogen removal
  • Cellular automaton
  • MABR
  • Simulation
  • Spatial organization

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

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