Record Display for the EPA National Library Catalog


Main Title High-velocity, high-efficiency aerosol filtration /
Author Leith, David.
Other Authors
Author Title of a Work
Rudnick, Stephen N.
First, Melvin W.
CORP Author Harvard School of Public Health, Boston, Mass.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory,
Year Published 1976
Report Number EPA 600/2-76/020; EPA-R801399-02; EPA-ROAP-21ADJ-057
Stock Number PB-249 457
OCLC Number 39842467
Subjects Aerosols ; Fabric filtration
Additional Subjects Air pollution control equipment ; Dust filters ; Dust collectors ; Aerosols ; Particle size ; Fly ash ; Cakes ; Porosity ; Filtration ; Combustion products ; Mass flow ; Industrial plants ; Electrostatic precipitators ; Design criteria ; Performance evaluation ; Shakers ; Fabric filters ; Pulsejet filters ; Shaker filters
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-76-020 Headquarters Library/Washington,DC 02/11/2014
EKBD  EPA-600/2-76-020 Research Triangle Park Library/RTP, NC 06/13/2003
ESAD  EPA 600-2-76-020 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-249 457 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 182 p. : ill. ; 28 cm.
The report gives results of bench- and pilot-scale studies of the dust collection characteristics of fabric filters. Techniques for measuring dust deposit porosity as a function of cloth characteristics and filtration velocity on a bench-scale filter have been developed and are described. A method for impregnating and slicing the dust deposit for examination under the electron microscope is also described. For the pulsejet pilot-scale filter, flyash penetration decreased as the dust deposit thickened, increased with increasing filtration velocity, and remained relatively constant for particles down to 0.30 micrometers diameter. Three dust emission mechanisms were investigated, using chemically tagged flyash. Penetration by straight-through dust loss falls off rapidly after cleaning, but later increases. Seepage of dust through the fabric was constant throughout the filtration cycle. Dust lost as pinhole plugs increased after cleaning, but later declined; however, the pinholes may open the way for further emission by the straight-through mechanism. Fabric cleaning was a problem in both the pulsejet and shaker cleaned filters during high velocity operation; redesign of commercial equipment is necessary.
"EPA-600/2-76-020." EPA grant no. R801399-02, program element no. 1AB012, ROAP no. 21ADJ-057. EPA project officer: J.H. Turner. Includes bibliographical references (p. 139-181).