我国部分地区煤及煤矸石中汞的分布特征Distribution characteristics of mercury in coal and gangue from Mid-west China and its environment impact
陈晶,黄文辉,张爱云,唐修义
CHEN Jing~(1,2),HUANG Wen-hui~1,ZHANG Ai-yun~1
摘要(Abstract):
采用原子荧光光谱仪测定了陕西、山西、云南、山东以及河南等地一些煤、电厂炉渣、飞灰等样品中汞元素的质量分数。检出限为0.01×10-6。除淮南地区的个别样品外,多数样品中汞的质量分数处于世界多数煤和中国多数煤中Hg质量分数范围内,少数高于世界煤炭汞质量分数的平均值(0.02×10-6~1.0×10-6)。不同地层间、不同类型样品间汞的质量分数有较大差别:上石盒子组中的>山西组中的>太原组中的;飞灰中的汞质量分数明显大于炉渣中的汞质量分数;褐煤中的汞质量分数高于无烟煤中的。
Mercury(Hg) in 62 samples of coal,gangue from Shaanxi,Shanxi,Yunnan,Shandong and Henan Provinces was analyzed by AFS(atomic fluorescence spectrometry)in order to investigate its environment impact.The detection limit of this method is 0.01×10~(-6).The results show that the average concentration of Hg is in the range of the data about coal published about the world and China,but higher than the mean of the world coal(0.02×10~(-6)~1.0×10~(-6)).And the concentration varied with its geologic origin.The concentration of Hg in coals from Shihezi Formation is higher than from Shanxi Formation,much higher than that from Taiyuan Formation;that in fly-ash is higher than the waster residue;According to these data and previous data,the situation of Hg in the coal is summarized and its environment impact is discussed.
关键词(KeyWords):
煤;煤矸石;微量元素;汞;环境效应
coal;gangue;trace element;mercury;environment impact
基金项目(Foundation): 国家自然科学基金(40272124)项目资助
作者(Author):
陈晶,黄文辉,张爱云,唐修义
CHEN Jing~(1,2),HUANG Wen-hui~1,ZHANG Ai-yun~1
参考文献(References):
- [1]U.S.EPA.Mercury Study Report to Congress[R];EPA 452 r R-97-003;U.S.Environmental Protection Agency,Office of Air QualityPlanning and Standards and Office of Research and Development,U.S.Government Printing Office:Washington,DC,December 1997.
- [2]Thomas D.Brown,Dennis N.Smith,Richard A.Hargis,Jr.,andWiniam J.O’Dowd.Mercury measurement and its control:What weknow,have learned,and need to further investigate[J].Journal of图1不同地点的样品中Hg平均质量分数Fig.1 The average concentration of Hg in different areas1———云南小龙潭;2———陕西神木;3———山东;4———安徽淮南;5———山西霍州;6———山西安太堡;7———河南姚孟电厂;8———河南新密图2不同类型样品中Hg平均质量分数Fig.2 The average concentration of Hg in different kinds of samples1———山西组煤;2———太原组煤;3———上石盒子组;4———电厂炉渣;5———电厂飞灰;6———煤矸石;7———褐煤;8———无烟煤The Air&Waste Management Association,1999,6.
- [3]刘俊华,王文华,彭安.北京市二个主要工业区汞污染来源的初步研究[J].环境科学学报,1998,18(3):331-336.
- [4]冯新斌,洪业汤,倪建宇,等.贵州煤中汞的分布、赋存状态及对环境的影响[J].煤田地质与勘探,1998,26(2):12-14.
- [5]王运泉,任德贻.煤中微量元素研究进展[J].煤田地质与勘探,1994,22(4):16-20.
- [6]周义平.老厂矿区煤中汞的成因类型和赋存特征[J].煤田地质与勘探,1994,22(3):17-21.
- [7]Swaine D J.Trace elements in coal[M].London:Butterworths,1990,278.
- [8]唐修义,黄文辉.中国煤中微量元素[M].北京:商务印书馆,2004.114-129.
- [9]Huang Wenhui,Che Yao,Yang Qi,Tang Dazhen.Geochemistry of sul-fer and hazardous elements late paleozoic coals and partings fromTaozao coalfield,Shandong Province,China[J].Journal of ChinaUniversity of Ceoscience,1990,15(1):15-22.
- [10]Linjdqvist.Waste Management and Research[M].1986,4(1):35.
- [11]任建莉,周劲松,骆仲映,岑可法.煤中汞燃烧过程析出规律试验研究[J].环境科学学报,2002,22(3),289-293.
- [12]王起超,马如龙.煤及灰渣中的汞[J].中国环境科学,1997,17(1):76-79.
- [13]Pacyna J M,Munch J.Anthropogenic mercury emission in Europe[J].Water,Air and Soil Pollution,1991,56:51-61.
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