Dynamic modeling and simulation of a three-phase fluidized bed batch process for wastewater treatment

Satoshi Tsuneda*, Joseph Auresenia, Takayuki Morise, Akira Hirata

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


Batch operation with different starting substrate concentrations (biological oxygen demand (BOD5)) and biomass concentrations (mixed liquor volatile solid (MLVS)) were performed on a completely mixed three-phase fluidized bed reactor used in treating simulated domestic waste water. The mixed culture microorganisms used were contained in a biofilm attaching to cement balls. The data obtained were fitted to five different kinetic rate equations. The kinetic parameters of each model were obtained using a Gauss - Newton nonlinear regression analysis method. It was found that the Haldane model incorporating endogenous metabolic consumption (Endo - Haldanc model), best described the kinetics of the biological reaction inside the three-phase fluidized bed reactor. This is due to the fact that this model can both account for the effects of cell death and/or endogenous metabolism at low concentration and of substrate inhibition at high concentration.

Original languageEnglish
Pages (from-to)599-604
Number of pages6
JournalProcess Biochemistry
Issue number4
Publication statusPublished - 2002 Dec 2


  • Batch operation
  • Biological wastewater treatment
  • Endogenous metabolism
  • Kinetic parameters
  • Nonlinear regression analysis
  • Reaction rate equation

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology


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