Record Display for the EPA National Library Catalog

RECORD NUMBER: 29 OF 42

OLS Field Name OLS Field Data
Main Title Modeling Chemical Interactions in Anaerobic Biofilm Systems.
Author Flora, J. R. V. ; Suidan, M. T. ; Biswas, P. ; Sayles., G. D. ;
CORP Author Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher c1993
Year Published 1993
Report Number EPA/600/A-94/052;
Stock Number PB94-159290
Additional Subjects Anaerobic processes ; Mathematical models ; Bioreactors ; Reprint ; pH ; Methanol ; Acetate ; Reaction kinetics ; Mass transfer ; Thin films ; Waste water treatment ; Organic compounds ; Diffusion coefficient ; Flux(Rate) ; Concentration(Composition) ; Biofilm ; CSTR(Completely-stirred tank reactor) ; Electroneutrality
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB94-159290 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 14p
Abstract
Rigorous steady-state models of acetate- and methanol-utilizing methanogenic biofilms are developed taking into account the mass transfer of neutral and ionic species, pH changes within the biofilm, pH-dependent Monod kinetics, chemical equilibrium, electroneutrality, gas production within the biofilm, and the presence of a concentration boundary layer (CBL). The study shows that significant differences can exist between the flux predictions using the traditional models and when pH changes within the biofilm are taken into account. The biofilm models are coupled to a model of a completely-stirred tank reactor (CSTR) and strategies for the optimization of biofilm reactor performance are examined. (Copyright (c) 1993 Water Environment Federation.)