Determination of mercury content in hard coal and fly ash using X-ray diffraction and scanning electron microscopy coupled with chemical analysis
The objective of the work was testing the suitability of X-ray Diffraction (XRD) and Scanning Electron Microscopy with X-ray microanalysis (SEM/EDS-Energy Dispersive X-ray Spectroscopy) for qualitative assessment of mercury present in coals and furnace wastes (slag, ash). Such information is essenti...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-12-01
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| Series: | Arabian Journal of Chemistry |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S187853521630003X |
| _version_ | 1811278502415040512 |
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| author | Przemysław Rompalski Adam Smoliński Hanna Krztoń Jarosław Gazdowicz Natalia Howaniec Leokadia Róg |
| author_facet | Przemysław Rompalski Adam Smoliński Hanna Krztoń Jarosław Gazdowicz Natalia Howaniec Leokadia Róg |
| author_sort | Przemysław Rompalski |
| collection | DOAJ |
| description | The objective of the work was testing the suitability of X-ray Diffraction (XRD) and Scanning Electron Microscopy with X-ray microanalysis (SEM/EDS-Energy Dispersive X-ray Spectroscopy) for qualitative assessment of mercury present in coals and furnace wastes (slag, ash). Such information is essential e.g. for determination of the potential effects of waste coal dumps on the environment (mercury compound emissions through leaching and erosion to water and soil). No minerals of mercury, i.e. containing mercury as a necessary and substantial component were identified with the application of the above mentioned techniques in studied hard coal and fly ash samples provided by a heat and power plant. In hard coal, mercury was detected as an impurity only in the alumina silicates. EDS spectra of pure coal grains did not show the emission lines of mercury. In fly ash, the minerals of mercury were also not detected; mercury was present in an amorphous component (mineral glass) and probably as an impurity in hauyne Na3Ca(Si3Al3)O12(SO4). Keywords: Mercury, Hard coal, Fly ash, XRD, SEM/EDS |
| first_indexed | 2024-04-13T00:37:04Z |
| format | Article |
| id | doaj.art-bf99e782f8b34e999ac5ff901acc590a |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-04-13T00:37:04Z |
| publishDate | 2019-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-bf99e782f8b34e999ac5ff901acc590a2022-12-22T03:10:18ZengElsevierArabian Journal of Chemistry1878-53522019-12-0112839273942Determination of mercury content in hard coal and fly ash using X-ray diffraction and scanning electron microscopy coupled with chemical analysisPrzemysław Rompalski0Adam Smoliński1Hanna Krztoń2Jarosław Gazdowicz3Natalia Howaniec4Leokadia Róg5Department of Solid Fuels Quality Assessment, Central Mining Institute, Pl. Gwarków 1, 40-166 Katowice, Poland; Corresponding author. Tel.: +48 32 2592609; fax: +48 32 2596533.Department of Energy Saving and Air Protection, Central Mining Institute, Pl. Gwarków 1, 40-166 Katowice, PolandDepartment of Investigations of Properties and Structure of Materials, Instytut Metalurgii Żelaza, K. Miarki Str. 12-14, 44-100 Gliwice, PolandDepartment of Investigations of Properties and Structure of Materials, Instytut Metalurgii Żelaza, K. Miarki Str. 12-14, 44-100 Gliwice, PolandDepartment of Energy Saving and Air Protection, Central Mining Institute, Pl. Gwarków 1, 40-166 Katowice, PolandDepartment of Solid Fuels Quality Assessment, Central Mining Institute, Pl. Gwarków 1, 40-166 Katowice, PolandThe objective of the work was testing the suitability of X-ray Diffraction (XRD) and Scanning Electron Microscopy with X-ray microanalysis (SEM/EDS-Energy Dispersive X-ray Spectroscopy) for qualitative assessment of mercury present in coals and furnace wastes (slag, ash). Such information is essential e.g. for determination of the potential effects of waste coal dumps on the environment (mercury compound emissions through leaching and erosion to water and soil). No minerals of mercury, i.e. containing mercury as a necessary and substantial component were identified with the application of the above mentioned techniques in studied hard coal and fly ash samples provided by a heat and power plant. In hard coal, mercury was detected as an impurity only in the alumina silicates. EDS spectra of pure coal grains did not show the emission lines of mercury. In fly ash, the minerals of mercury were also not detected; mercury was present in an amorphous component (mineral glass) and probably as an impurity in hauyne Na3Ca(Si3Al3)O12(SO4). Keywords: Mercury, Hard coal, Fly ash, XRD, SEM/EDShttp://www.sciencedirect.com/science/article/pii/S187853521630003X |
| spellingShingle | Przemysław Rompalski Adam Smoliński Hanna Krztoń Jarosław Gazdowicz Natalia Howaniec Leokadia Róg Determination of mercury content in hard coal and fly ash using X-ray diffraction and scanning electron microscopy coupled with chemical analysis Arabian Journal of Chemistry |
| title | Determination of mercury content in hard coal and fly ash using X-ray diffraction and scanning electron microscopy coupled with chemical analysis |
| title_full | Determination of mercury content in hard coal and fly ash using X-ray diffraction and scanning electron microscopy coupled with chemical analysis |
| title_fullStr | Determination of mercury content in hard coal and fly ash using X-ray diffraction and scanning electron microscopy coupled with chemical analysis |
| title_full_unstemmed | Determination of mercury content in hard coal and fly ash using X-ray diffraction and scanning electron microscopy coupled with chemical analysis |
| title_short | Determination of mercury content in hard coal and fly ash using X-ray diffraction and scanning electron microscopy coupled with chemical analysis |
| title_sort | determination of mercury content in hard coal and fly ash using x ray diffraction and scanning electron microscopy coupled with chemical analysis |
| url | http://www.sciencedirect.com/science/article/pii/S187853521630003X |
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