Evaluation of bisubstrate secondary utilization kinetics by biofilm

E. Namkung, Bruce Rittmann

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A bisubstrate system having S//s//1 greater than S//m//i//n//1 was testd with phenol and acetate as model compounds in completely mixed biofilm reactors. Two series of experiments compared the kinetics of phenol removal as a single substrate and as part of a bisubstrate system having a fixed total feed COD. Experimental results showed that, although the rate of utilization of either substrate was almost the same in a bisubstrate system as in a single substrate system, the utilization rate of either compound always was slightly greater in a bisubstrate system than in a single-substrate system. This slight enhanced removal of an individual compound in a bisubstrate system was attributed to the extra biomass accumulated from the utilization of the other substrate. As the fraction of the feed COD contributed by an individual compound decreased in a bisubstrate system, the effluent concentration of that compound decreased and its fractional removal efficiency increased.

Original languageEnglish (US)
Pages (from-to)335-342
Number of pages8
JournalBiotechnology and Bioengineering
Volume29
Issue number3
StatePublished - Jan 1 1987
Externally publishedYes

Fingerprint

Biofilms
Phenol
Biomass
Kinetics
Substrates
Phenols
Effluents
phenyl acetate
Experiments

ASJC Scopus subject areas

  • Biotechnology
  • Microbiology

Cite this

Evaluation of bisubstrate secondary utilization kinetics by biofilm. / Namkung, E.; Rittmann, Bruce.

In: Biotechnology and Bioengineering, Vol. 29, No. 3, 01.01.1987, p. 335-342.

Research output: Contribution to journalArticle

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