Record Display for the EPA National Library Catalog


Main Title Charged droplet scrubber for fine particle control : laboratory study /
Author Lear, Charles William.
CORP Author TRW Systems Group, Redondo Beach, Calif.;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 600/2-76-249a; EPA-68-02-1345; EPA-ROAP-21ADL-043
Stock Number PB-258 823
OCLC Number 41713616
Subjects Air--Pollution--United States ; Drops ; Dust ; Scrubber (Chemical technology)
Additional Subjects Air pollution control equipment ; Particles ; Scrubbers ; Fines ; Efficiency ; Experimental design ; Drops(Liquids) ; Electrostatic charge ; Performance evaluation ; Design criteria ; Industrial wastes ; Combustion products ; Measuring instruments ; Tests ; Numerical analysis ; Charged droplet scrubbers ; Procedures
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-600/2-76-249a Research Triangle Park Library/RTP, NC 09/07/2001
ELBD RPS EPA 600-2-76-249a repository copy AWBERC Library/Cincinnati,OH 01/13/2020
NTIS  PB-258 823 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 181 pages in various pagings : illustrations ; 27 cm.
The report gives results of a feasibility study of the application of charged droplet scrubbing for fine particle control. Results, using the TRW charged droplet scrubber, indicated that the method is feasible and applicable over a wide range of conditions. In the charged droplet scrubber the electrical interaction mechanisms exist in addition to the normal impact and diffusional scrubbing mechanisms. Electrical interaction is strong in the 0.1 to 1.0 micron particulate size range where the normal mechanisms lack effectiveness. Collection efficiencies as high as 80% for 0.1 micron and 90% for 1 micron particles were demonstrated in a three-stage unit. Induced charging or dry charging of particulate by charge transfer from droplets is an effective and major collection mechanism in the fine particulate size range. Large (100 micron) droplets give better performance characteristics than small (10 micron) droplets.
"EPA-600/2-76-249a." EPA contract no. 68-02-1345, ROAP no. 21ADL-043, program element no. 1AB012 ; EPA project officer: Dale L. Harmon. Includes bibliographical references (pages 7-1 to 7-2).
Contents Notes
[v. 1]. Laboratory study.