Multidimensional modelling of anaerobic granules

C. Picioreanu, D. J. Batstone, M. C.M. van Loosdrecht

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

A multispecies, two- and three-dimensional model was developed, based on a previously published planar biofilm model, and the biochemical structure of the ADM1. Several soluble substrates diffuse and react in the granule. Local pH is calculated from acid-base equilibria and charge balance. The model uses individual-based representation of biomass particles within the granule (biofilm), and describes spreading by an iterative pushing technique. The overall computational domain consists of one granule, and is divided into a grid with Cartesian coordinates. The number of grid elements does not limit the number of biomass particles, and it is not necessary to use grid-spreading techniques, such as cellular automata, which result in Cartesian artefacts. The model represents both microscopic and macroscopic features in granule structure, previously observed using in-situ molecular techniques, and can be effectively used to interpret these results. © IWA Publishing 2005.
Original languageEnglish (US)
Pages (from-to)501-507
Number of pages7
JournalWater Science and Technology
Volume52
Issue number1-2
DOIs
StatePublished - Jan 1 2005
Externally publishedYes

ASJC Scopus subject areas

  • Water Science and Technology
  • Environmental Engineering

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