Record Display for the EPA National Library Catalog

RECORD NUMBER: 43 OF 90

OLS Field Name OLS Field Data
Main Title Modeling Substrate Transport into Biofilms: Role of Multiple Ions and pH Effects.
Author Flora, J. R. V. ; Suidan, M. T. ; Biswas, P. ; Sayles., G. D. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.;Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.
Publisher c1993
Year Published 1993
Report Number EPA/600/J-94/145;
Stock Number PB94-157328
Additional Subjects Bioengineering ; Waste water treatment ; Diffusion ; Mathematical models ; Aquatic algae ; Electrostatic charge ; Ion transport ; Mass transfer ; Reaction kinetics ; Diffusion coefficients ; pH ; Ion mobility ; Transport properties ; Trickling filters ; Thin films ; Reprint ; GAC(Granular activated carbon) ; Biofilms
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB94-157328 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/01/1994
Collation 25p
Abstract
Steady-state substrate utilization in biofilms has traditionally been modeled by coupling Fickian diffusion with Monod reaction kinetics. An inherent assumption in most of the previous models was that the pH remains constant within the biofilm. Experiments have shown differences between the pH in the bulk solution and in the biofilm. A fundamental approach incorporating the effects of pH in any chemical or biological system involving diffusion with reaction is presented. The approach is applied to a steady-state model of substrate utilization in carbon-limited algal biofilms. (Copyright (c) ASCE 1993.)