Design and production of Hg° calibrator, Hg~(2+) calibrator, and Hg~(2+) to Hg° converter for a continuous Hg emission monitor

摘要

Hg calibration and conversion systems, which are integral parts of a continuous emission monitor for were designed, produced, and tested. First, both Hg° and Hg~(2+) calibrators showed less than 10X difference between measured and theoretical values. Next, a Hg~(2+) to Hg° thermal converter with a scrubber and heated gas lines showed a conversion efficiency higher than 95%. Finally, the laboratory-prepared Hg converter was tested at a full-scale medical waste incinerator. The Ontario Hydro Method was used for measurement and speciation of Hg. The results showed that the laboratory-prepared Hg converter was highly effective with highest conversion efficiency close to 94%. KMercury;; Hg calibration;; Hg oxidation;; Hg reduction;; CEM;; Medical waste incinerator