Effect of roughness and thickness of biofilms on external mass transfer resistance

Tian C. Zhang, Paul L. Bishop, James T. Gibbs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

The effect of roughness and thickness of biofilms on the dissolved oxygen (DO) concentration boundary layer thickness (DO CBLT) and the external mass transfer process in a biofilm system were investigated using a microelectrode technique. The experimental results indicated that (a) an increase of biofilm roughness would reduce the external mass transfer resistance; and (b) the absolute roughness increased with an increase in the biofilm maximum thickness, but this increase diminished when the biofilm thickness exceeded 1200 μm. The microelectrode technique is a useful tool to study the external mass transfer process.

Original languageEnglish (US)
Title of host publicationCritical Issues in Water and Wastewater Treatment
EditorsJoseph N. Ryan, Marc Edwards
PublisherPubl by ASCE
Pages593-600
Number of pages8
ISBN (Print)0784400318
StatePublished - 1994
EventProceedings of the 1994 National Conference on Environmental Engineering - Boulder, CO, USA
Duration: Jul 11 1994Jul 13 1994

Publication series

NameNational Conference on Environmental Engineering
ISSN (Print)0731-1516

Other

OtherProceedings of the 1994 National Conference on Environmental Engineering
CityBoulder, CO, USA
Period7/11/947/13/94

ASJC Scopus subject areas

  • Environmental Engineering

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  • Cite this

    Zhang, T. C., Bishop, P. L., & Gibbs, J. T. (1994). Effect of roughness and thickness of biofilms on external mass transfer resistance. In J. N. Ryan, & M. Edwards (Eds.), Critical Issues in Water and Wastewater Treatment (pp. 593-600). (National Conference on Environmental Engineering). Publ by ASCE.