Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfield
With the continuous development, processing and utilization of coal resources in our province, the existence of typical harmful elements in coal is bound to have a negative impact on the efficient and clean utilization of coal resources. Based on the mass data analysis of typical hazardous elements...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Coal Science and Technology
2023-05-01
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| Series: | Meitan kexue jishu |
| Subjects: | |
| Online Access: | http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2021-1033 |
| _version_ | 1827631107210739712 |
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| author | Guangqing HU Dun WU Chao WEI Guijian LIU Wenyong ZHANG Qingye SUN Youde WANG |
| author_facet | Guangqing HU Dun WU Chao WEI Guijian LIU Wenyong ZHANG Qingye SUN Youde WANG |
| author_sort | Guangqing HU |
| collection | DOAJ |
| description | With the continuous development, processing and utilization of coal resources in our province, the existence of typical harmful elements in coal is bound to have a negative impact on the efficient and clean utilization of coal resources. Based on the mass data analysis of typical hazardous elements in coal of Huainan coalfield, taking the main coal seams (No.13-1, No.11-2, No.8, No.6, No.4 and No.1) as the research objects, the occurrence characteristics and geological genesis of typical hazardous elements were comprehensively analyzed by the means of ICP-MS, AFS, stepwise chemical extraction and cluster analysis. The results were as follows: ① Typical hazardous elements Cr, Co, Se and Pb in coal of Huainan coalfield are “lightly enriched”, Hg is “highly enriched” and other elements are in “normal range”; ② The high value area of As element content in Huainan coalfield was mainly located in the west of coalfield; the high value region of Hg element was located in the east of coalfield, followed by the west; the remaining eight elements (Cr, Mn, Co, Ni, Se, Cd, Sb and Pb) were all higher in coal of Panji mining area of Huainan coalfield (especially near Pansan coal mine). The late magmatic hydrothermal process in Panji-Zhuji region may be the main reason for the relative enrichment of hazardous elements such as Cr, Mn, Co, Ni, Se, Cd, Sb and Pb. ③ There were many ion-exchange States in the occurrence state of Hg, and the inorganic components brought by magmatic hydrothermal action may have little influence on the enrichment degree of Hg element. The magmatic hydrothermal intrusion in the late diagenesis period had no obvious influence on As, and the low content of As in coal may be related to the low content of As in coal-forming plants. |
| first_indexed | 2024-03-09T14:16:24Z |
| format | Article |
| id | doaj.art-19c9cd3befba456fa0f7189a95a8b2c9 |
| institution | Directory Open Access Journal |
| issn | 0253-2336 |
| language | zho |
| last_indexed | 2024-03-09T14:16:24Z |
| publishDate | 2023-05-01 |
| publisher | Editorial Department of Coal Science and Technology |
| record_format | Article |
| series | Meitan kexue jishu |
| spelling | doaj.art-19c9cd3befba456fa0f7189a95a8b2c92023-11-29T01:27:46ZzhoEditorial Department of Coal Science and TechnologyMeitan kexue jishu0253-23362023-05-0151516117310.13199/j.cnki.cst.2021-10332021-1033Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfieldGuangqing HU0Dun WU1Chao WEI2Guijian LIU3Wenyong ZHANG4Qingye SUN5Youde WANG6Green Mining Engineering Technology Research Center of Anhui Province, Exploration Research Institute, Anhui Provincial Bureau of Coal Geology, Hefei 230088, ChinaGreen Mining Engineering Technology Research Center of Anhui Province, Exploration Research Institute, Anhui Provincial Bureau of Coal Geology, Hefei 230088, ChinaGreen Mining Engineering Technology Research Center of Anhui Province, Exploration Research Institute, Anhui Provincial Bureau of Coal Geology, Hefei 230088, ChinaSchool of Earth and Space Sciences, University of Science and Technology of China, Hefei 230088, ChinaGreen Mining Engineering Technology Research Center of Anhui Province, Exploration Research Institute, Anhui Provincial Bureau of Coal Geology, Hefei 230088, ChinaSchool of Resources and Environmental Engineering, Anhui University, Hefei 230039, ChinaHuainan Mining Group Department of Resources and Environmental Management， Huainan 232001，ChinaWith the continuous development, processing and utilization of coal resources in our province, the existence of typical harmful elements in coal is bound to have a negative impact on the efficient and clean utilization of coal resources. Based on the mass data analysis of typical hazardous elements in coal of Huainan coalfield, taking the main coal seams (No.13-1, No.11-2, No.8, No.6, No.4 and No.1) as the research objects, the occurrence characteristics and geological genesis of typical hazardous elements were comprehensively analyzed by the means of ICP-MS, AFS, stepwise chemical extraction and cluster analysis. The results were as follows: ① Typical hazardous elements Cr, Co, Se and Pb in coal of Huainan coalfield are “lightly enriched”, Hg is “highly enriched” and other elements are in “normal range”; ② The high value area of As element content in Huainan coalfield was mainly located in the west of coalfield; the high value region of Hg element was located in the east of coalfield, followed by the west; the remaining eight elements (Cr, Mn, Co, Ni, Se, Cd, Sb and Pb) were all higher in coal of Panji mining area of Huainan coalfield (especially near Pansan coal mine). The late magmatic hydrothermal process in Panji-Zhuji region may be the main reason for the relative enrichment of hazardous elements such as Cr, Mn, Co, Ni, Se, Cd, Sb and Pb. ③ There were many ion-exchange States in the occurrence state of Hg, and the inorganic components brought by magmatic hydrothermal action may have little influence on the enrichment degree of Hg element. The magmatic hydrothermal intrusion in the late diagenesis period had no obvious influence on As, and the low content of As in coal may be related to the low content of As in coal-forming plants.http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2021-1033huainan coalfieldhazardous elementsoccurrence characteristicgeological genesiselement distributionelement occurrence |
| spellingShingle | Guangqing HU Dun WU Chao WEI Guijian LIU Wenyong ZHANG Qingye SUN Youde WANG Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfield Meitan kexue jishu huainan coalfield hazardous elements occurrence characteristic geological genesis element distribution element occurrence |
| title | Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfield |
| title_full | Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfield |
| title_fullStr | Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfield |
| title_full_unstemmed | Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfield |
| title_short | Distribution, occurrence characteristics and geological origin of typical hazardous elements in low-medium ash coal of Huainan coalfield |
| title_sort | distribution occurrence characteristics and geological origin of typical hazardous elements in low medium ash coal of huainan coalfield |
| topic | huainan coalfield hazardous elements occurrence characteristic geological genesis element distribution element occurrence |
| url | http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2021-1033 |
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