Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Performance of Trickle Bed Biofilters under High Toluene Loading.
Author Sorial, G. A. ; Smith, F. L. ; Pandit, A. ; Suidan, M. T. ; Biswas, P. ;
CORP Author Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher 1995
Year Published 1995
Report Number EPA-CR-821029; EPA/600/A-95/064;
Stock Number PB95-217634
Additional Subjects Trickling filtration ; Biotechnology ; Air pollution control ; Meetings ; Reprints ; Performance evaluation ; Toluene ; Separation ; Organic compounds ; Biodegradation ; Filters ; Backwashing ; Trickle bed biofilters ; Volatile organic compounds
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB95-217634 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/02/1995
Collation 19p
The performance of two pelletized media biofilters, highly loaded with toluene, was evaluated in this study. Both biofilters were operated at the same influent concentration of 250 ppmv toluene. Biofilter 'A' was operated at 1 minute EBRT and biofilter 'B' at 0.67 minute EBRT. The impact of backwash duration on performance was studied for both biofilters, primarily the stability of performance between backwashings. This biofilter behavior indicated that increasing the backwash period from 1 to 2 hours was effective in improving the performance stability of both biofilters. This improved performance stability is due to reduction of short circuiting within the media, caused by accumulating biomass.