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- Title
Studies of mercury content in selected coal seams of the Upper Silesian Coal Basin.
- Authors
Klojzy-Karczmarczyk, Beata; Mazurek, Janusz
- Abstract
The structure of fuel consumption in Poland has changed very little in recent years, and coal and lignite are still the dominant fuels in the energy sector. The presence of mercury in coal is a common phenomenon. Its content in coal samples from various deposits from around the world typically ranges from 0.03 to 0.3 mg/kg; however, the amount of mercury in each seam varies. This paper presents the results of mercury content studies of nearly 100 samples collected from the coal seams of the Upper Silesian Coal Basin. The seams selected for examination represent different lithostratigraphic members (Libi¹¿, £aziska, Orzesze, Ruda, Siod³o, Porêba, and Jaklowiec horizons). Coal samples from a total of 35 seams in 17mines were studied. Themercury content analysis indicated that the amount of this element varied in the examined material. The average mercury content in the sampled seams was comparable with the data provided in exiting documentation or was much lower. The total mercury content measured in all the coal samples ranged from0.0029 to 0.3026 mg/kg, and averaged 0.0739 mg/kg. Frequently, in individual samples from genetically similar deposits, mercury content in coal varied by several orders of magnitude, which was evident primarily within the £aziska and Ruda horizons. There is no clear differentiation in mercury content between the eastern and the central-western mining regions. In the samples collected in all the mines, the average mercury content ranged from 0.0331 to 0.1589 mg/kg. There was no relationship between the average mercury content in coal from different mines and the lithostratigraphic origin of the mined seams. The total mercury content was provided in the air-dry (analytical) state of the samples. Due to the small number of samples collected from the mined seams and the wide range of variability discovered, the conducted studies do not allow for the relation of total mercury content in selected seams to their lithostratigraphic position. These results, however, have significantly extended the scope of knowledge about mercury content in coal from the USCB seams. Moreover, the study of coal content variability has a distinct cognitive aspect.
- Subjects
DABROWA Basin (Poland &; Czech Republic); POLAND; COAL reserves; MERCURY content of coal; ENERGY consumption; LIGNITE; ENERGY industries
- Publication
Mineral Resources Management / Gospodarka Surowcami Mineralnymi, 2013, Vol 29, Issue 4, p95
- ISSN
0860-0953
- Publication type
Article
- DOI
10.2478/gospo-2013-0047