Mercury Speciation Adsorption (Mesa) Method for Combustion Flue Gas: Methodology, Artifacts, Intercomparison, and Atmospheric Implications

  • Eric M. Prestbo
  • Nicolas S. Bloom
Chapter

Abstract

Chemical speciation of mercury (Hg) in a wide variety of combustion flue gas matrices has been determined using the mercury speciation adsorption (MESA) method. The MESA sampling system for gas phase Hg species employs a series of heated, solid phase adsorbent traps. Flue gas oxidized Hg species (Hg(II) and MMHg) are adsorbed by a potassium chloride (KC1) impregnated soda lime sorbent. Elemental Hg (Hg°) is collected by an iodated carbon sorbent after passing through the KCl/soda lime sorbent. Total Hg (Hgt) is determined by summation of species. In the laboratory, cold vapor atomic fluorescence spectroscopy (CVAFS) is used for detection of Hg collected on the solid sorbents, after appropriate sample digestion and preparation. The MESA method has been evaluated for species stability, matrix effects, breakthrough, artifacts and precision. Based on eight duplicate samples a mean precision of 6.8% 11% and 4.5% (relative percent difference) has been calculated for Hg°, Hg(II) and Hgt respectively. Intercomparison of the MESA method with other methods shows very good agreement for Hgt. Mass balance calculations at 5 sites range from 75 to 140%, with a mean of 97±25%. Overall mean speciation results from 19 separate determinations suggest that Hg(II) has a 1 sigma range of 40 to 94% in coal combustion flue gas at, the inlet to pollution control devices.

Keywords

Mass Balance Calculation Relative Percent Difference Sample Train Combustion Facility Collection Temperature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References

  1. Bloom, N.S. and Crecelius, E.A.: 1983, Mar. Chem. 14, 49.CrossRefGoogle Scholar
  2. Bloom, N.S., and Fitzgerald, W.F.: 1987, Anal. Chim. Acta 208, 151.CrossRefGoogle Scholar
  3. Bloom, N.S.: 1989, Can. J. Fish. Aq. Sci. 46, 1131.CrossRefGoogle Scholar
  4. Bloom, N.S., Watras, C.J. and Hurley J.P.: 1991, Water, Air, Soil, Poll., 56, 477.CrossRefGoogle Scholar
  5. Bloom, N.S.: 1993, in Managing Hazardous Air Pollutants: State of the Art, EPRI TR-101890, pp. 148–160, Chow, W. and Conner, K.K., eds., Lewis Publishers, Boca Raton, Florida.Google Scholar
  6. Bloom, N.S., Prestbo, E.M. and Miklavcic, V.L.: 1993, presented at the EPRI Conference on Managing Hazardous Air Pollutants, July 13–15, Washington D.C.Google Scholar
  7. Bloom, N.S. and Prestbo, E.M.: 1994, in proceedings Coal-Energy and Env., Int. Pittsburgh Coal Conf., Univ. of Pittsburgh, September 12–16, 1, 563–568.Google Scholar
  8. Bloom, N.S., Prestbo, E.M., Hall, B. and von der Geest, E J.: 1994, Water, Air, Soil, Poll., (in press).Google Scholar
  9. Bloom, N.S.: 1994, Environmental Lab, (in press).Google Scholar
  10. Brosset, C.: 1983, IVL Report EM 999, 1983-02-15, Göteborg, Sweden.Google Scholar
  11. Braun, H. and Metzger, M.: 1987, Chemosphere, 16,821.CrossRefGoogle Scholar
  12. Chu, P. and Schmidt, C.: 1994, in proceedings Coal-Energy and Env., Int. Pittsburgh Coal Conf., 1, 551–556.Google Scholar
  13. Cooper, J., Gruneback, M., Sarver, R., Peltier, R., Simons, C., Ritter, B., and Baikowski, T.: 1992, Draft Report to EPRI, July 22,1992, Chester Environmental, Tigard, Oregon.Google Scholar
  14. Cooper, J.A.: 1994, in proceedings 2nd Int. Conf. on Managing Hazardous Air Pollutants, EPRI TR-104295, p. 11–21, Chow, W. and Levin, L. eds.Google Scholar
  15. Danilchik, P., Imhoff R., Liang L., Valente R., Dismukes E., Brown C., Spurling D., Huang Z. and Prestbo E.M.: 1994, “A comparison of the fate of Hg in flues and plumes of coal fired boilers” presented as a poster at the Int. Conf. on Mercury as a Global Pollutant, Whistler, B.C. Canada, July 10–14.Google Scholar
  16. Fitzgerald W.F. and Qarkson T.W.: 1991, Env. Health Persp., 96, 159.CrossRefGoogle Scholar
  17. Germani, M.S. and Zoller W.H.: 1988, Env. Sci. Tech. 22, 1079.CrossRefGoogle Scholar
  18. Larjava, K., Laitinen, T., Vahlman, T., Artmann, S., Siemens, V., Broekaert J.A.C. and Klockow, D.: 1993, Int. J. Environ. Anal. Chem., 149, 73.Google Scholar
  19. Lee, Y.J. and Rochelle, G.T.: 1987, Env. Sci. & Technol ., 21, 266.CrossRefGoogle Scholar
  20. Liang, L., Hoivat, M. and Bloom N.S.: 1994, Talanta , 41, 371–379.PubMedCrossRefGoogle Scholar
  21. Lindberg, S.E.: 1980, Atmos. Environ., 14, 227.CrossRefGoogle Scholar
  22. Lindqvist, O.: 1991, Water, Air, Soil, Poll., 55, 1–261.CrossRefGoogle Scholar
  23. Mojtahedi, W., Backman, R. and Laijava, K.: 1987, “Fate of some trace elements in fluidised-bed combustion and gasification processes. Technical Research Centre of Finland, Publication 42, Espoo.Google Scholar
  24. Meij, R.: 1991a, Water, Air, Soil, Poll., 56, 21.CrossRefGoogle Scholar
  25. Meij, R.: 1991b, Water, Air, Soil, Poll., 56, 117.CrossRefGoogle Scholar
  26. Moffit, A.E. and Kupel, R.E.: 1971, Am. Ind. Hyg. Assn. /., 32,614.CrossRefGoogle Scholar
  27. Nott, B.R., Huyck, K.A., Dees, W., Prestbo, E.M., Olmez, I. and Tawney, C.W.: 1994, Proceedings of the Air and Waste Mngmt. Assoc. Conference, July, paper #94-MP6.02.Google Scholar
  28. Nriagu, J.O.:1989, in Control and Fate of Atmospheric Trace Metals, J.M. Pacyna and B Ottar, eds., pp 3–13.CrossRefGoogle Scholar
  29. Nriagu, J.O. and Pacyna J.M.: 1988, Nature, 333, 134–139.PubMedCrossRefGoogle Scholar
  30. Peterson, J.: 1994, personal communication.Google Scholar
  31. Prestbo, E.M. and Bloom, N.S.: 1993, in Proceedings of the Air. Waste. Mngmt. Assoc., 86th Annual Meeting, paper #93-TA-32.05.Google Scholar
  32. Schlager, R.J, Hyatt, D.E. and Durham, M.D.: 1993, in proceedings of the Air, Waste, Mngmt. Assoc, 86th Annual Meeting, paper #93-TA-32.02.Google Scholar
  33. Watras, C.J., Bloom, N.S., Hudson, R.J.M., et al.: 1994, in Mercury Pollution: Integration and Synthesis, C.J. Watras and J.W. Huckabee, eds., Lewis Publishers, Boca Raton, Florida.Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1995

Authors and Affiliations

  • Eric M. Prestbo
    • 1
  • Nicolas S. Bloom
    • 1
  1. 1.Frontier Geosciences Inc.North SeattleUSA

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