Vapor-phase concentrations of arsenic, selenium, bromine, iodine, and mercury in the stack of a coal-fired power plant

✍ Scribed by Germani, Mark S.; Zoller, William H.

• Book ID: 126258292
• Publisher: American Chemical Society
• Year: 1988
• Tongue: English
• Weight: 954 KB
• Volume: 22
• Category: Article
• ISSN: 0013-936X
• DOI: 10.1021/es00174a013

✦ Synopsis

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w A sampling and analysis procedure is described for determining vapor-phase concentrations of As, Se, Br, I, and Hg in the stack of a coal-fired power plant. The percentages of the total in-stack concentrations for these elements present in the vapor phase are as follows: Br, 98%; Hg, 98%; Se, 59%; As, 0.7-52%; and I, 199%. A lower limit of 99% was obtained for C1. The vapor-phase concentration of As appears to be dependent upon the in-stack or filter mass loading. This indicates that a vaporization-condensation mechanism may control the vapor-phase concentrations of As. The results for Se indicate that the efficiency of the electrostatic precipitator affects particle vapor-phase fractionation. The results obtained in this study are compared with previous mass balance calculations.