Record Display for the EPA National Library Catalog


Main Title University of Washington electrostatic scrubber tests : combined particulate and SO2 control /
Author Pilat, Michael J.
Other Authors
Author Title of a Work
Harmon, Dale L.
CORP Author Washington Univ., Seattle. Dept. of Civil Engineering.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Office of Research and Development,
Year Published 1979
Report Number EPA-600/7-79-245; EPA-R-806035
Stock Number PB80-182603
OCLC Number 54101648
Subjects Scrubber (Chemical technology)--Testing. ; Electrostatic separators--Testing.
Additional Subjects Air pollution control equipment ; Scrubbers ; Electrostatics ; Particles ; Industrial wastes ; Combustion products ; Boilers ; Fines ; Sulfur dioxide ; Aerosols ; Pilot plants ; Sodium carbonates ; Performance evaluation ; Design
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-7-79-245 Headquarters Library/Washington,DC 06/11/2013
EKBD  EPA-600/7-79-245 Research Triangle Park Library/RTP, NC 01/30/2004
ESAD  EPA 600-7-79-245 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-182603 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 51 p. : ill., charts, photo. ; 28 cm.
The report gives results of tests of a 1700 a cu m/hr University of Washington electrostatic spray scrubber pilot plant on a coal-fired boiler to demonstrate its effectiveness for controlling fine particle and SO2 emissions. The multiple-pass portable pilot plant operates by combining oppositely charged aerosol particles and water droplets in two spray towers. Aerosol charging sections at a negative polarity precede each spray tower. For these tests, the pilot plant used only one charging section and one spray tower. A liquor recycle system was constructed, permitting the pilot plant to operate in an open- or closed-loop mode. All SO2 tests were run in an open-loop mode using either water or Na2CO3 solution as the scrubbing liquor. Simultaneous inlet and outlet source tests using cascade impactors provided size-dependent and overall mass basis particle collection efficiency data. Measured over-all particle collection efficiencies were 98.99%-99.80%, depending on scrubbing operating conditions. SO2 collection efficiencies were 8.02%-97.41%, depending on the scrubber operating conditions, inlet SO2 concentration, and the type of scrubbing liquor used.
Project Officer: Dale L. Harmon. University of Washington, Department of Civil Engineering "November 1979." Includes bibliographical references (p. 50). "EPA-600/7-79-245."