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RECORD NUMBER: 2 OF 2

Main Title Field Study to Obtain Trace Element Mass Balances at Kingston Steam Plant.
Author Zielke, R. L. ; Bittman, Richard M. ;
CORP Author Tennessee Valley Authority, Chattanooga. Div. of Energy Demonstrations and Technology.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Year Published 1982
Report Number EPA-600/7-82-042;
Stock Number PB82-257247
Additional Subjects Mass flow ; Water pollution ; Trace elements ; Sampling ; Field tests ; Boilers ; Fly ash ; Concentration(Composition) ; Coal ; Surveys ; Design ; Kingston steam plant ; Coal fired power plants
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB82-257247 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 180p
Abstract
The report gives results of a study to help characterize the various waste streams by identifying the mass flow rates of the minor and trace elements in each waste stream of a coal-fired utility boiler. In obtaining the mass balances for 28 elements, the inlet and outlet flows associated with three major pieces of equipment were used: the pulverizer, boiler, and electrostatic precipitator (ESP); Kingston Unit 6 has two ESPs. Thus, the mass balance presented reflected a good picture of Unit 6 at near-full-load operation. The mass imbalance for the entire system ranged from -12.5 to +6.3%. However, the mass imbalance for each element was quite different: in many cases, it greatly exceeded + or -12.5%. Nevertheless, 10 elements--Al, Be, Ca, Cr, Fe, Mg, S, Si, Ti, and V--had imbalances of < + or -10%; these elements represented about 93% of the total fly ash and bottom ash mass flow rates. Improved sampling for elements in the vapor phase is needed because most concentrations were below detection limits. Improved sampling for both the bottom ash and inlet to the mechanical collector would drastically improve the mass flow rate estimates and remove some of the assumptions of this report.