Numerical modeling of a composting process with aeration

Fujio Kuwahara, Yoshihiko Sano, Akira Nakayama, Kiyohiko Nakasaki, Tatsunori Fukazawa

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A mathematical model has been proposed for numerical simulation of composting processes under aeration controls. Exploiting the local volume-averaging theory, an appropriate set of governing equations has been introduced so as to describe complex transport phenomena associated with microbe species, substrates, and water in composting operations. A two-dimensional numerical experiment has been conducted to reveal the temporal and spatial variations of the system temperature, substrates, and microbial concentrations within an open channel-type composting system, aerated by forced ventilation. The effects of mechanical agitation on the composting process have also been investigated in terms of temperature and concentrations over the pile cross section.

Original languageEnglish
Pages (from-to)927-938
Number of pages12
JournalJournal of Porous Media
Volume12
Issue number10
DOIs
Publication statusPublished - Sep 25 2009

ASJC Scopus subject areas

  • Modelling and Simulation
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Kuwahara, F., Sano, Y., Nakayama, A., Nakasaki, K., & Fukazawa, T. (2009). Numerical modeling of a composting process with aeration. Journal of Porous Media, 12(10), 927-938. https://doi.org/10.1615/JPorMedia.v12.i10.10