淮南煤田深部A组煤中有害微量元素地球化学特征
|
摘要
以淮南煤田深部A组煤为研究对象,全层刻槽采集了煤、夹矸和顶底板岩石样品,采用电感耦合等离子质谱仪(ICP-MS)测试分析了样品中13种有害微量元素的含量,对比研究了其分布特征,结合Tessier五步形态提取法和相关性分析探讨了煤中有害微量元素的赋存形态。结果表明:(1)与中国上陆壳中各种微量元素含量均值相比,淮南深部A组煤中B,As,Se,Mo,Cd,Pb,Hg的富集系数均大于1,在A组煤中表现为富集;A组煤中B,As,Se,Cd的含量均高于淮南煤田上部B组煤、华北煤以及中国煤中的含量均值;(2)相关性分析和逐级提取实验结果表明,A组煤中微量元素主要以残渣态和铁锰氧化物结合态存在,两者质量分数之和达到55%～98%,其中Ni,Mo,Cd,Hg,Cu,Pb和Zn主要赋存于硫化物矿物中,Mn主要赋存于碳酸盐矿物中,V,Cr,Se,B和As主要赋存于硅铝酸盐等黏土矿物中。(3) B元素示踪物源及沉积环境结果显示,淮南煤田深部A组煤成煤环境为海相咸水沉积环境,稳定的咸水沉积环境以及受海水影响等因素导致A组煤中微量元素出现不同程度的富集。
Samples of coal, gangue, roof and floor rocks were collected from the deeply-buried group A coal seam from Huainan coalfield, Anhui, China. The concentrations of thirteen hazardous trace elements were determined by Inductively Coupled Plasma-Mass Spectrometry(ICP-MS) to investigate the distribution characteristics of hazardous trace elements in the deeply-buried group A coal seam of Huainan coalfield. The occurrence of hazardous trace elements in the deeply-buried group A coals were analyzed by the Tessier five-step morphological extraction method and correlation analysis. The results show that,(1) Compared with the average contents of various trace elements in the Chinese upper continental crust, the calculated enrichment coefficients of B, As, Se and Cd are all greater than 1 in the deeply-buried group A coal seam from Huainan coalfield, indicating relative enrichment; the concentrations of B, As, Se and Cd in the deeply-buried group A coals seam of Huainan coalfield were relatively higher than those in the upper part of the Group B coals of Huainan, Northern China coals and Chinese coals.(2) Correlation analysis and Sequential extraction experiments show that most of the trace elements in the group A coals mainly existed in the residual form and Fe-Mn Oxide binding state, and the sum of quality fractions ranged from 55%～98%. Ni, Mo, Cd, Hg, Cu, Pb and Zn mainly occurred in sulfide minerals, whereas Mn occurred in carbonate minerals. V, Cr, Se, B and As mainly occurred in clay minerals such as aluminosilicate.(3) Deposition environment of the deeply-buried group A coals was traced by boron and the results show that the deeply-buried group A coals was formed a brackish water-influenced sedimentary environment. Concentration of trace elements in the deeply-buried group A coals could be explained by the stable salt water sedimentation environment and the influence of seawater.
Samples of coal, gangue, roof and floor rocks were collected from the deeply-buried group A coal seam from Huainan coalfield, Anhui, China. The concentrations of thirteen hazardous trace elements were determined by Inductively Coupled Plasma-Mass Spectrometry(ICP-MS) to investigate the distribution characteristics of hazardous trace elements in the deeply-buried group A coal seam of Huainan coalfield. The occurrence of hazardous trace elements in the deeply-buried group A coals were analyzed by the Tessier five-step morphological extraction method and correlation analysis. The results show that,(1) Compared with the average contents of various trace elements in the Chinese upper continental crust, the calculated enrichment coefficients of B, As, Se and Cd are all greater than 1 in the deeply-buried group A coal seam from Huainan coalfield, indicating relative enrichment; the concentrations of B, As, Se and Cd in the deeply-buried group A coals seam of Huainan coalfield were relatively higher than those in the upper part of the Group B coals of Huainan, Northern China coals and Chinese coals.(2) Correlation analysis and Sequential extraction experiments show that most of the trace elements in the group A coals mainly existed in the residual form and Fe-Mn Oxide binding state, and the sum of quality fractions ranged from 55%～98%. Ni, Mo, Cd, Hg, Cu, Pb and Zn mainly occurred in sulfide minerals, whereas Mn occurred in carbonate minerals. V, Cr, Se, B and As mainly occurred in clay minerals such as aluminosilicate.(3) Deposition environment of the deeply-buried group A coals was traced by boron and the results show that the deeply-buried group A coals was formed a brackish water-influenced sedimentary environment. Concentration of trace elements in the deeply-buried group A coals could be explained by the stable salt water sedimentation environment and the influence of seawater.
引文
楚英军.2014.蔚县煤田侏罗纪主采煤层煤中微量元素研究[D].邯郸:河北工程大学.
代世峰,任德贻,李生盛,等.2003.华北地台晚古生代煤中微量元素及As的分布[J].中国矿业大学学报,32(2):111-114.
丁帅帅,郑刘根,程桦.2015.电感耦合等离子体发射光谱-逐级化学提取法研究低硫煤矸石中微量元素的赋存状态及其环境效应[J].岩矿测试,34(6):629-635.
黄晓雨,郑刘根,张强伟,等.2015.卧龙湖煤矿岩浆蚀变煤层中汞的分布与赋存特征[J].高校地质学报,21(2):280-287.
黄文辉,杨宜春.2002.中国煤中的硼[J].中国煤田地质,(S1):41-42.
黎彤.1994.中国陆壳及其沉积层和上陆壳的化学元素丰度[J].地球化学,23(2):140-145.
李晖,郑刘根,刘桂建.2011.淮南张集矿区煤中微量元素的含量分布特征分析[J].岩石矿物学杂志,30(4):696-700.
刘桂建,杨萍玥,彭子成,等.2003.兖州矿区山西组3煤层中微量元素的特征分析[J].地球化学,32(3):250-260.
平文文.2016.淮南潘集深部煤层微量元素分布特征及其地质意义[D].淮南:安徽理工大学.
秦身钧,高康,王金喜,等.2016.黔西南盘县火烧铺和金佳矿区晚二叠世煤中伴生元素的地球化学特征[J].煤炭学报,41(6):1507-1516.
任德贻,赵峰华,代世峰,等.2006.煤的微量元素地球化学[M].北京:科学出版社:9-20.
童文林,刘昆,陈肖.2010.淮南煤田丁集井田B组煤中硼元素与沉积环境演化分析[J].中国煤炭地质,22(9):1-3.
谢宏,聂爱国.2010.贵州西部地区煤中砷的赋存状态及其洗选特性[J].煤炭学报,35(1):117-121.
杨宁,唐书恒,张松航,等.2016.准格尔煤田串草圪旦煤矿5号煤元素地球化学特征[J].地学前缘,23(3):74-82.
张鸣,张品刚,周士荣,等.2016.淮南煤田新集二矿构造特征与控煤规律[J].中国煤炭地质,28(7):6-10.
Chen J,Chen P,Yao D,et al.2015.Mineralogy and geochemistry of Late Permian coals from the Donglin Coal Mine in the Nantong coalfield in Chongqing,southwestern China[J].International Journal of Coal Geology,149:24-40.
Chen J,Liu G J,Jiang M,et al.2011.Geochemistry of environmentally sensitive trace elements in Permian coals from the Huainan coalfield,Anhui,China[J].International Journal of Coal Geology,88(1):41-54.
Chen J,Liu G J,Li H,et al.2014.Mineralogical and geochemical responses of coal to igneous intrusion in the Pansan Coal Mine of the Huainan coalfield,Anhui,China[J].International Journal of Coal Geology,124(4):11-35.
Chen S C,Wu D,Liu G J,et al.2016.Geochemistry of major and trace elements in Permian coal:with an emphasis on No.8 coal seam of Zhuji coal mine,Huainan Coalfield,China[J].Environmental Earth Sciences,75(6):494-504.
Dai S F,Li T J,Jiang Y F,et al.2015.Mineralogical and geochemical compositions of the Pennsylvanian coal in the Hailiushu Mine,Daqingshan Coalfield,Inner Mongolia,China:implications of sediment-source region and acid hydrothermal solutions[J].International Journal of Coal Geology,137:92-110.
Dai S F,Ren D Y,Chou C L,et al.2012.Geochemistry of trace elements in Chinese coals:A review of abundances genetic types impacts on human health,and industrial utilization[J].International Journal of Coal Geology,94(3):3-21.
Dai S F,Ren D Y,Tang Y,et al.2002.Distribution,isotopic variation and origin of sulfur in coals in the Wuda coalfield,Inner Mongolia,China[J].International Journal of Coal Geology,51(4):237-250.
Dai S F,Hou X,Ren D Y,et al.2003.Surface analysis of pyrite in the no.9coal seam,Wuda coalfield,Inner Mongolia,China,using high-resolution time-of-flight secondary ion mass-spectrometry[J].International Journal of Coal Geology,55(2):139-150.
Dai S F,Seredin V V,Ward C R,et al.2015.Enrichment of U-Se-Mo-V in coals preserved within marine carbonate successions:Geochemical and minerlogical data from the Late Permian Guiding Coalfield,Guizhou China[J].Mineralium Deposita,50:159-186.
Ding D S,Liu G J,Fu B,et al.2018.Characteristics of the coal quality and elemental geochemistry in Permian coals from the Xinjier mine in the Huainan Coalfield,north China:Influence of terrigenous inputs[J].Journal of Geochemical Exploration,186:50-60.
Fu B,Liu G J,Liu Y,et al.2016.Coal quality characterization and its relationship with geological process of the Early Permian Huainan coal deposits,southern North China[J].Journal of Geochemical Exploration,166:33-44.
Li C H,Liang H D and Wang S K.2018.Study of harmful trace elements and rare earth elements in the Permian tectonically deformed coals from Lugou Mine,North China Coal Basin,China[J].Journal of Geochemical Exploration,190:10-25.
Munir M A M,Liu G J,Yousaf B,et al.2018.Enrichment and distribution of trace elements in Padhrar,Thar and Kotli coals from Pakistan:comparison to coals from China with an emphasis on the elements distribution[J].Journal of Geochemical Exploration,185:153-169.
Riley K W,French D H,Farrell O P,et al.2012.Modes of occurrence of trace and minor elements in some Australian coals[J].International Journal of Coal Geology,94(8):214-224.
Sun R Y,Liu G J,Zheng L G,et al.2010.Geochemistry of trace elements in coals from the Zhuji Mine,Huainan Coalfield,Anhui,China[J].International Journal of Coal Geology,81(2):81-96.
Swaine D J and Goodarzi F.1995.Environmental aspects of trace elements in coal[J].Energy Environment,2(1):2-2.
Tessier A,Campbell P G C and Bisson M.1979.Sequential extraction procedure for the speciation of particulate trace metals[J].Analytical Chemistry,51(7):844-851.
Zheng L G,Liu G J and Chou C.2007.The distribution,occurrence and environmental effect of mercury in Chinese coals[J].Science of the Total Environment,384(1-3):374-383.
Zheng L G,Liu G J,Qi C C,et al.2008.The use of sequential extraction to determine the distribution and modes of occurrence of mercury in Permian Huaibei coal,Anhui Province,China[J].International Journal of Coal Geology,73(2):139-155.
Zheng Q M,Shi S L,Liu Q F,et al.2017.Modes of occurrences of major and trace elements in coals from Yangquan Mining District,North China[J].Journal of Geochemical Exploration,175:36-47.
Zhou C C,Liu G J,Wu D,et al.2014.Mobility behavior and environmental implications of trace elements associated with coal gangue:a case study at the Huainan coalfield in China[J].Chemosphere,95(1):193-199.
代世峰,任德贻,李生盛,等.2003.华北地台晚古生代煤中微量元素及As的分布[J].中国矿业大学学报,32(2):111-114.
丁帅帅,郑刘根,程桦.2015.电感耦合等离子体发射光谱-逐级化学提取法研究低硫煤矸石中微量元素的赋存状态及其环境效应[J].岩矿测试,34(6):629-635.
黄晓雨,郑刘根,张强伟,等.2015.卧龙湖煤矿岩浆蚀变煤层中汞的分布与赋存特征[J].高校地质学报,21(2):280-287.
黄文辉,杨宜春.2002.中国煤中的硼[J].中国煤田地质,(S1):41-42.
黎彤.1994.中国陆壳及其沉积层和上陆壳的化学元素丰度[J].地球化学,23(2):140-145.
李晖,郑刘根,刘桂建.2011.淮南张集矿区煤中微量元素的含量分布特征分析[J].岩石矿物学杂志,30(4):696-700.
刘桂建,杨萍玥,彭子成,等.2003.兖州矿区山西组3煤层中微量元素的特征分析[J].地球化学,32(3):250-260.
平文文.2016.淮南潘集深部煤层微量元素分布特征及其地质意义[D].淮南:安徽理工大学.
秦身钧,高康,王金喜,等.2016.黔西南盘县火烧铺和金佳矿区晚二叠世煤中伴生元素的地球化学特征[J].煤炭学报,41(6):1507-1516.
任德贻,赵峰华,代世峰,等.2006.煤的微量元素地球化学[M].北京:科学出版社:9-20.
童文林,刘昆,陈肖.2010.淮南煤田丁集井田B组煤中硼元素与沉积环境演化分析[J].中国煤炭地质,22(9):1-3.
谢宏,聂爱国.2010.贵州西部地区煤中砷的赋存状态及其洗选特性[J].煤炭学报,35(1):117-121.
杨宁,唐书恒,张松航,等.2016.准格尔煤田串草圪旦煤矿5号煤元素地球化学特征[J].地学前缘,23(3):74-82.
张鸣,张品刚,周士荣,等.2016.淮南煤田新集二矿构造特征与控煤规律[J].中国煤炭地质,28(7):6-10.
Chen J,Chen P,Yao D,et al.2015.Mineralogy and geochemistry of Late Permian coals from the Donglin Coal Mine in the Nantong coalfield in Chongqing,southwestern China[J].International Journal of Coal Geology,149:24-40.
Chen J,Liu G J,Jiang M,et al.2011.Geochemistry of environmentally sensitive trace elements in Permian coals from the Huainan coalfield,Anhui,China[J].International Journal of Coal Geology,88(1):41-54.
Chen J,Liu G J,Li H,et al.2014.Mineralogical and geochemical responses of coal to igneous intrusion in the Pansan Coal Mine of the Huainan coalfield,Anhui,China[J].International Journal of Coal Geology,124(4):11-35.
Chen S C,Wu D,Liu G J,et al.2016.Geochemistry of major and trace elements in Permian coal:with an emphasis on No.8 coal seam of Zhuji coal mine,Huainan Coalfield,China[J].Environmental Earth Sciences,75(6):494-504.
Dai S F,Li T J,Jiang Y F,et al.2015.Mineralogical and geochemical compositions of the Pennsylvanian coal in the Hailiushu Mine,Daqingshan Coalfield,Inner Mongolia,China:implications of sediment-source region and acid hydrothermal solutions[J].International Journal of Coal Geology,137:92-110.
Dai S F,Ren D Y,Chou C L,et al.2012.Geochemistry of trace elements in Chinese coals:A review of abundances genetic types impacts on human health,and industrial utilization[J].International Journal of Coal Geology,94(3):3-21.
Dai S F,Ren D Y,Tang Y,et al.2002.Distribution,isotopic variation and origin of sulfur in coals in the Wuda coalfield,Inner Mongolia,China[J].International Journal of Coal Geology,51(4):237-250.
Dai S F,Hou X,Ren D Y,et al.2003.Surface analysis of pyrite in the no.9coal seam,Wuda coalfield,Inner Mongolia,China,using high-resolution time-of-flight secondary ion mass-spectrometry[J].International Journal of Coal Geology,55(2):139-150.
Dai S F,Seredin V V,Ward C R,et al.2015.Enrichment of U-Se-Mo-V in coals preserved within marine carbonate successions:Geochemical and minerlogical data from the Late Permian Guiding Coalfield,Guizhou China[J].Mineralium Deposita,50:159-186.
Ding D S,Liu G J,Fu B,et al.2018.Characteristics of the coal quality and elemental geochemistry in Permian coals from the Xinjier mine in the Huainan Coalfield,north China:Influence of terrigenous inputs[J].Journal of Geochemical Exploration,186:50-60.
Fu B,Liu G J,Liu Y,et al.2016.Coal quality characterization and its relationship with geological process of the Early Permian Huainan coal deposits,southern North China[J].Journal of Geochemical Exploration,166:33-44.
Li C H,Liang H D and Wang S K.2018.Study of harmful trace elements and rare earth elements in the Permian tectonically deformed coals from Lugou Mine,North China Coal Basin,China[J].Journal of Geochemical Exploration,190:10-25.
Munir M A M,Liu G J,Yousaf B,et al.2018.Enrichment and distribution of trace elements in Padhrar,Thar and Kotli coals from Pakistan:comparison to coals from China with an emphasis on the elements distribution[J].Journal of Geochemical Exploration,185:153-169.
Riley K W,French D H,Farrell O P,et al.2012.Modes of occurrence of trace and minor elements in some Australian coals[J].International Journal of Coal Geology,94(8):214-224.
Sun R Y,Liu G J,Zheng L G,et al.2010.Geochemistry of trace elements in coals from the Zhuji Mine,Huainan Coalfield,Anhui,China[J].International Journal of Coal Geology,81(2):81-96.
Swaine D J and Goodarzi F.1995.Environmental aspects of trace elements in coal[J].Energy Environment,2(1):2-2.
Tessier A,Campbell P G C and Bisson M.1979.Sequential extraction procedure for the speciation of particulate trace metals[J].Analytical Chemistry,51(7):844-851.
Zheng L G,Liu G J and Chou C.2007.The distribution,occurrence and environmental effect of mercury in Chinese coals[J].Science of the Total Environment,384(1-3):374-383.
Zheng L G,Liu G J,Qi C C,et al.2008.The use of sequential extraction to determine the distribution and modes of occurrence of mercury in Permian Huaibei coal,Anhui Province,China[J].International Journal of Coal Geology,73(2):139-155.
Zheng Q M,Shi S L,Liu Q F,et al.2017.Modes of occurrences of major and trace elements in coals from Yangquan Mining District,North China[J].Journal of Geochemical Exploration,175:36-47.
Zhou C C,Liu G J,Wu D,et al.2014.Mobility behavior and environmental implications of trace elements associated with coal gangue:a case study at the Huainan coalfield in China[J].Chemosphere,95(1):193-199.