Main Title |
Characterization of Individual Fly Ash Particles Emitted from Coal- and Oil-Fired Power Plants. |
Author |
Mamane, Y. ;
Miller, J. L. ;
Dzubay, T. G. ;
|
CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. |
Year Published |
1986 |
Report Number |
EPA/600/J-86/358; |
Stock Number |
PB87-195434 |
Additional Subjects |
Fly ash ;
Chemical analysis ;
Combustion products ;
Air pollution ;
Electron microscopes ;
Power plants ;
Reprints ;
Air pollution detection
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB87-195434 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
13p |
Abstract |
Individual particles from coal- and oil-fired power plants were analyzed by a scanning electron microscope equipped with an energy dispersive X-ray spectrometer to investigate the morphology and composition as a function of size. Samples were collected on filters by a dichotomous sampler in the fine (<2.5 micrometer aerodynamic diameter) and the coarse fractions (2.5 to 5-10 micrometers). In both fractions coal fly ash particles were predominantly smooth spheres, and no cenospheres (perforated hollow spheres) were detected. Almost 90% of the mass concentration occurred in the coarse fraction; the major elements included Al, Si, K, Ca, Ti, and Fe. Sulfur appeared as a surface layer on the mineral core. The abundances of Fe and S in each particle were highly variable. The ratio of Al to Si was fairly constant for most of the spheres but not for the relatively few Fe-rich or non-spherical coal fly ash particles. Over 90% of the mass of oil fly ash occurred in the fine fraction. |
Supplementary Notes |
Pub. in Atmospheric Environment v20 n11 p2125-2135 1986. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Characterization of Individual Fly Ash Particles Emitted from Coal- and Oil-Fired Power Plants. |
PUB Date Free Form |
1986 |
Category Codes |
68A |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
723225015 |
Origin |
NTIS |
Type |
CAT |