Film analysis of activated sludge microbial discs by the Taguchi method and grey relational analysis

M. Y. Chen, Mei-Jywan Syu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A biofilm model with substrate inhibition is proposed for the activated sludge growing discs of rotating biological contactor (RBC); this model is different from the steady-state biofilm model based on the Monod assumption. Both deep and shallow types of biofilms are examined and discussed. The biofilm models based on both Monod and substrate inhibition (Haldane) assumptions are compared. In addition, the relationships between substrate utilization rate, biofilm thickness, and liquid phase substrate concentration are discussed. The influence order of the factors that affect the biofilm thickness is studied and discussed by combining the Taguchi method and grey relational analysis. In this work, a Taguchi orthogonal table is used to construct the series that is needed for grey relational analysis to determine the influence priority of the four parameters SB, kXf, Ks, and Ki.

Original languageEnglish
Pages (from-to)83-92
Number of pages10
JournalBioprocess and biosystems engineering
Volume26
Issue number2
DOIs
Publication statusPublished - 2003 Dec 1

Fingerprint

Taguchi methods
Biofilms
Sewage
Substrates
Liquids

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Applied Microbiology and Biotechnology
  • Biotechnology
  • Bioengineering

Cite this

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Film analysis of activated sludge microbial discs by the Taguchi method and grey relational analysis. / Chen, M. Y.; Syu, Mei-Jywan.

In: Bioprocess and biosystems engineering, Vol. 26, No. 2, 01.12.2003, p. 83-92.

Research output: Contribution to journalArticle

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