Record Display for the EPA National Library Catalog


Main Title Particulate control highlights : research on electrostatic precipitator technology /
Author Oglesby, Sabert, ; Oglesby, Jr., S. ; Nichols., G.
Other Authors
Author Title of a Work
Nichols, Grady B.,
CORP Author Southern Research Inst., Birmingham, Ala.;Industrial Environmental Research Lab., Research Triangle Park, N.C. Particulate Technology Branch.
Publisher U.S. Environmental Protection Agency, Office of Research and Development,
Year Published 1977
Report Number EPA-600/8-77-020a; SORI-EAS-77-677; EPA-68-02-2114
Stock Number PB-276 643
OCLC Number 38045003
Subjects Electrostatic precipitation. ; Dust--Removal. ; Coal ash.
Additional Subjects Particles ; Air pollution control equipment ; Electrostatic precipitators ; Technology ; Fly ash ; Electric power plants ; Coal ; Combustion products ; Industrial wastes ; Particle size distribution ; Mathematical models ; Performance evaluation ; Precipitation(Chemistry) ; Electric corona ; Chemical composition ; Electrical resistance ; Coal fired power plants
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-8-77-020a Headquarters Library/Washington,DC 02/19/2019
EKBD  EPA-600/8-77-020a Research Triangle Park Library/RTP, NC 02/27/2004
ERAD  EPA 600/8-77-020a Region 9 Library/San Francisco,CA 02/19/2013
ESAD  EPA 600-8-77-020A Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-276 643 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation iv, 15 pages : illustrations ; 28 cm.
The report gives highlights of a major EPA research program on electrostatic precipitator (ESP) technology, directed toward improving the performance of ESPs in controlling industrial particulate emissions, notably fly ash from coal combustion in electric power plants. Relationships between electrical effects, such as reverse corona, caused by high resistivity of the deposited fly ash, have been investigated. The influence of fly ash particle size and chemical composition on the resistivity and dielectric strength of the deposited fly ash has also been studied. Relationships have been established between fly ash resistivity and chemical composition, especially its alkali metal content, for ESP operating temperatures below about 250C. Based on these relationships, a mechanism for ionic surface conduction has been proposed that complements the ionic mechanism in bulk conduction in fly ash particles at higher operating temperatures. The efficacy of conditioning fly ash by adding SO3 to flue gas (to lower fly ash resistivity) was established in trials at electric power plants. Reentrainment of particles from deposited fly ash has also been investigated in relation to ESP rapping procedures and gas flow distribution. A mathematical model of the ESP process has been developed, using fundamental relationships together with measurements of ESP geometry, electrical conditions, and particle size distribution.
As of 04/18/2016, GPO could not validate the distribution status of this title for the FDLP. "Particulate Technology Branch."--Cover. "December 1977." "EPA project officer: Dennis C. Drehmel." "Prepared for U.S. Environmental Protection Agency, Office of Research and Development." Sponsored by the EPA, Office of Research and Development, Industrial Environmental Research Laboratory Contract Number: 68-02-2114 Includes bibliographical references (pages 13-14). Final report;