By Jiang Wu, Yan Cao, Weiguo Pan, Weiping Pan
Mercury (Hg) is likely one of the such a lot poisonous heavy metals, destructive to either the surroundings and human health and wellbeing. Hg is published into the ambience from typical and anthropogenic resources and its emission keep watch over has brought on a lot problem. This ebook introduces readers to Hg pollutants from ordinary and anthropogenic resources and systematically describes coal-fired flue fuel mercury emission regulate in undefined, specifically from coal-fired energy stations. Mercury emission regulate thought and experimental examine are proven, together with how elemental mercury is oxidized into oxidized mercury and the impact of flue gasoline contents at the mercury speciation transformation procedure. Mercury emission keep watch over equipment, akin to latest APCDs (air toxins keep an eye on units) at energy stations, sorbent injection, ingredients in coal combustion and photo-catalytic tools are brought intimately. Lab-scale, pilot-scale and full-scale experimental reviews of sorbent injection carried out by means of the authors are provided systematically, aiding researchers and engineers to appreciate how this technique reduces the mercury emissions in flue fuel and to use the equipment in mercury emission keep watch over at coal-fired energy stations. Readers will arrive at a entire realizing of assorted mercury emission keep watch over equipment which are appropriate for commercial applications.
The publication is meant for scientists, researchers, engineers and graduate scholars within the fields of power technological know-how and expertise, environmental technology and expertise and chemical engineering.
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Additional info for Coal Fired Flue Gas Mercury Emission Controls
Water Air Soil Pollut 137(1–4):149–65 27. Shia R-L, Seigneur C, Pai P, Ko M, Sze ND (1999) Global simulation of atmospheric mercury concentrations and deposition fluxes. J Geophys Res 104:23747–23760 28. Pacyna EG, Pacyna JM, Steenhuisen F, Wilson S (2006) Global anthropogenic mercury emission inventory for 2000. Atmos Environ 40:4048–4063 29. DME (Department of Minerals and Energy) (2005) Digest of South African Energy Statistics. Department of Minerals and Energy, Pretoria Chapter 3 Coal-Fired-Derived Flue Gas Mercury Measurement Abstract Coal-fired-derived flue gas mercury measurement mainly includes Ontario Hydro Method, semicontinuous emission monitor, and Appendix K.
DME (Department of Minerals and Energy) (2005) Digest of South African Energy Statistics. Department of Minerals and Energy, Pretoria Chapter 3 Coal-Fired-Derived Flue Gas Mercury Measurement Abstract Coal-fired-derived flue gas mercury measurement mainly includes Ontario Hydro Method, semicontinuous emission monitor, and Appendix K. The Ontario Hydro Method (OHM) is the standard method of measuring and speciating mercury in flue gas, and its solutions were analyzed using a Leeman Labs Hydra AA.
The sameness and difference between them and their fate need to be studied. In this paper, a simultaneous test between a dry- and wet-based SCEM system was conducted and its results were discussed. In wet-based SCEM system, the module wholly finished the pre-handle of mercury. A KCl solution traps oxidized mercury and SnCl2 solution reduces oxidized mercury into elemental mercury. NaOH solution traps acid gases in flue gas, which will affect measured mercury data and are harmful to the gold trap and other devices in the analyzer.