Variable-order model of bacterial-film kinetics

Bruce Rittmann, P. L. McCarty

Research output: Chapter in Book/Report/Conference proceedingChapter

74 Scopus citations


A variable-order model provides a closely approximate, explicit solution for the flux of a limiting substrate into a 'deep' fixed bacterial film. The model incorporates concepts of liquid-layer mass transport, Monod kinetics, and molecular diffusion. The derived equation provides an explicit solution for the flux into a bacterial film, and for this reason, it should aid in the application of fundamental, fixed-film kinetics to practical reactor problems. Examples are given to illustrate use of the model.

Original languageEnglish (US)
Title of host publicationJ. ENVIRON. ENG. DIV. AM. SOC. CIV. ENG.
Number of pages12
Edition5 EE5
StatePublished - Oct 1978
Externally publishedYes


ASJC Scopus subject areas

  • Engineering(all)
  • Medicine(all)

Cite this

Rittmann, B., & McCarty, P. L. (1978). Variable-order model of bacterial-film kinetics. In J. ENVIRON. ENG. DIV. AM. SOC. CIV. ENG. (5 EE5 ed., Vol. 104, pp. 889-900)