Record Display for the EPA National Library Catalog


Main Title Development of a mathematical basis for relating sludge properties to FGD-scrubber operating variable /
Author Phillips, J. L. ; Terry, J. C. ; Wilde, K. C. ; Behrens, G. P. ; Lowell., P. S. ;
Other Authors
Author Title of a Work
Phillips, J. L.
CORP Author Radian Corp., Austin, Tex.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1978
Report Number EPA/600-7-78-072; EPA-68-02-2608
Stock Number 22161
OCLC Number 04269005
ISBN pbk.
Subjects Air--Pollution ; Flue gases--Desulfurization ; Scrubber (Chemical technology) ; Flue gases--Desulphurization
Additional Subjects Air pollution control ; Mathematical models ; Scrubbers ; Flue gases ; Particle size distribution ; Industrial wastes ; Combustion products ; Settling ; Density(Mass/volume) ; Crystal growth ; Limestone ; Tests ; Calcium sulfites ; Limestone scrubbing ; Sludges
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-600/7-78-072 Research Triangle Park Library/RTP, NC 12/05/2003
ELBD ARCHIVE EPA 600-7-78-072 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-7-78-072 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-281 582 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 369 pages in various pagings : illustrations ; 28 cm.
The report gives results of research to investigate prospects for increasing the size of calcium sulfite sludge particles in flue gas desulfurization systems. The approach included four work packages: a literature survey and development of a mathematical basis for predicting calcium sulfite sludge distribution; a computer solution of the size distribution model to determine parameter sensitivity; a literature survey and screening of analytical methods for measuring settling rate, settled density, and particle size distribution; and planning a test program to investigate parameters not available from previous work to verify the size distribution model. The crystal population balance concept was introduced into the mathematical basis for predicting particle size distribution of calcium sulfite sludge. Relationships were derived that required nucleation and crystal growth rate expressions which must be obtained from experimental data. Available pilot and full-scale scrubber data were used to increase the usefulness of the theoretical model. The relationship derived was solved for a specific process configuration. An approximate solution was obtained assuming that crystal size distribution does not change in the scrubber. A computer routine was written to permit convenient parameter sensitivity studies using the size distribution model.
Prepared for U.S. Environmental Protection Agency, Office of Research and Development, under contract no. 68-02-2608, task 11, program element no. EHE624. "April 1978." "EPA/600-7-78-072." Includes bibliographical references.