Record Display for the EPA National Library Catalog


Main Title Engineered Biofilter for Removing Organic Contaminants in Air.
Author Liu, P. K. T. ; Gregg, R. L. ; Sabol, H. K. ; Barkley., N. P. ;
CORP Author Aluminum Co. of America, Pittsburgh, PA.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher cMar 94
Year Published 1994
Report Number EPA-R-816813; EPA/600/J-94/174;
Stock Number PB94-163532
Additional Subjects Filtration ; Scrubbers ; Air pollution control ; Adsorption ; Biodegradation ; Toluene ; Microorganisms ; Superfund ; Emission ; Organic compounds ; Toluene ; Reprint ; Air decontamination ; Biological treatment ; Bench-scale ; Biogrowth
Library Call Number Additional Info Location Last
NTIS  PB94-163532 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
Biofiltration is an established economic air pollution control technology for removing organic contaminants in air. An engineered biofilter using synthetic media, such as activated carbon, has been developed that shows improvements in removal efficiency, biodegradation and space requirements over the existing filters. This carbon filter has been operated for > 11 months in a bench-top unit, accomplishing > or = 90 percent removal efficiency consistently in a stream containing 10 to 20 ppm of toluene. The mass transfer zone remained stationary and extremely short (1 to 4 seconds of empty bed contact time) during the entire operating period. Compared with existing filters, this engineered filter showed 40 to 80 times greater biodegradation efficiency under the selected conditions, resulting in a decreased space requirement and other advantages in equipment sizing. (Copyright (c) 1994 - Air & Water Management Association.)