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Surface characterization of different particles arising as a result of coal combustion process in selected power plants from Central Poland using ToF-SIMS

100%
Grams J., Bawolak K.
Polish Journal of Chemical Technology
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2007
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vol. 9
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issue 4
77-80
EN
The aim of this work was the ToF-SIMS investigations of different particles arising as a result of a coal combustion process in selected power plants from Central Poland. The chemical composition and distribution of particular compounds on the studied surfaces were determined. Moreover, the ratio of the quantity of aromatic and aliphatic hydrocarbons adsorbed on the surface of the particles was estimated. A qualitative analysis of the studied samples demonstrated the presence of a big number of various compounds, including heavy metals such as Pb, Cd and As on the investigated surfaces. In the prevailing number sample components were distributed non-homogenously on the surface and the larger areas richer in a certain type of ions were observed.
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The mercury analysis in airborne particles emitted from coal-combustion processes

61%
Szynkowska M., Leśniewska E., Pawlaczyk A., Albińska J., Bawolak K., Paryjczak T.
Polish Journal of Chemical Technology
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2007
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vol. 9
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issue 2
46-48
EN
Determination of trace elements in combusted materials has always been an interesting field of environmental studies. Particulate matter, in particular, is a serious problem which, can lead to air pollution especially by heavy metals emissions in urban and industrial areas. There is a considerable concern about the elevated level of mercury released during combustion and the proportion of anthropogenic mercury in the environment. Nowadays, small-scale installations have been identified as a significant source-pathway for mercury pollution, particularly those that use coal. A total amount of mercury was determined using Mercury Analyzer. The investigated material consists of bottom ash, fly ash, slag, soot or dust. The obtained results varied according to the type of the material and plant. The developed methodology was checked by carrying out the analysis of certificate material of Soil NCS ZC 73001 and the reference material of Soil-7.
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