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Title	Field Experiences with Measurement Techniques for Characterizing Toxic Emissions from Coal Fired Boilers
Creator	McGrath, Thomas P.; Zimperman, R.; England, Glenn C.
Publisher	Digitized by J. Willard Marriott Library, University of Utah
Date	1995
Spatial Coverage	presented at Monterey, California
Abstract	EPA is currently assessing health risks posed by emissions of hazardous air pollutants from electric utility plants. Recent measurements of toxic emissions from coal-fired power plants show the levels of emissions are significantly lower than previously thought. This is largely due to advances in measurement techniques over the past decade leading to more specific measurements with lower detection limits. Nevertheless, many of the available methods for such classes of pollutants as trace metals and semivolatile organic compounds have been validated only for hazardous waste combustion sources and their application to flue gas from coal-fired sources may not be straightforward. This paper describes test methods used to characterize trace metals, volatile and semivolatile organic compounds, hydrogen chloride and hydrogen fluoride, hexavalent chromium, and other substances in coal fired power plants. Field measurements on a utility boiler equipped with an electrostatic precipitator and on a flue gas slipstream treated by a semi-dry scrubber, electrostatic precipitator, and pulse-jet fabric filter are discussed.
Type	Text
Format	application/pdf
Language	eng
Rights	This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
Conversion Specifications	Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth.
Scanning Technician	Cliodhna Davis
ARK	ark:/87278/s6x92dwc
Setname	uu_afrc
ID	10132
Reference URL	https://collections.lib.utah.edu/ark:/87278/s6x92dwc

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Title	Page 14
Format	application/pdf
OCR Text	Show TABLE 3 . COMPARISON OF ELEMENTAL MASS BALANCE TO EMISSION FACTORS FOR THREE COMPREHENSIVE TOXICS ASSESSMENTS ESP SNRB GSA Parameter Emission Mass Emission Mass Emission Factor, Balance, Factor, Balance, Factor, Mass Balance, Ib/l012 Btu % Ib/l012 Btu 0/0 lb/l 012 Btu % Total Mass - 107 - - - 86-94 Metals As 3 140 1 556 .04 - 0.1 29 - 228 Ba 0.9 24 5 19 3 - 14 74 - 197 Be 0.07 130 8 73 - - Cd 0.9 73 3 34 0.09 - 1 37 - 203 Cr 8 100 8 101 2-20 49- 80 Co 0.6 150 7 106 1-4 53 - 236 Hg 0 .4 180 13 155 0.1 - 1 30-73 Ni 5 100 34 84 - - Mn 15 69 3 104 1-70 83 - 131 Pb 4 66 0.5 77 0.2 - 13 21- 37 Sb 2 330 0 .8 66 0.06 - 0.2 1750 - 4540 Se 93 15 0.1 138 0.05 - 20 4 - 107 V 2 110 8 121 6-42 42- 83 Particulate 42500 102 27000 100 5000 - 12000 - Chloride 24000 44 470 - 7 - 210 46 - 122 TABLE 4. EMISSION FACTOR UNCERTAINTY Parameter Emission Factor Uncertainty, % Cardinal SNRB* GSA Trace Metals As 57 - 16 - 238 Ba 73 81 13 - 17 Cd 211 132 52 - 229 Pb 71 - 60 - 382 Hg 109 18 121 - 196 Se 54 - 13 - 293 Ni 143 144 - VOC 25 - 246 6 - 172 - SVOC 53 - 408 16 - 160 - Chlorides 56 89 16-413 *Uncertalnty not calculated; relative standard deviation, 0/0, reported. 14
Setname	uu_afrc
ID	10128
Reference URL	https://collections.lib.utah.edu/ark:/87278/s6x92dwc/10128