摘要
通过对云南省滇西聚煤亚区部分褐煤,尤其是临沧盆地的锗煤共生矿和潞西等呷、芒究煤矿的煤资源中伴生放射性水平采样调查,利用其伴生放射性水平调查值与云南省辐射环境监督站提供的天然放射性水平值进行对比分析,结果表明:煤层中的伴生放射性水平与其形成煤区的岩性、煤质以及有机质有一定的关系,煤化程度低的褐煤尤其以劣质煤和富含有机质及炭化植物碎屑的褐煤伴生放射性水平较高.由此提出了在大量使用煤资源的同时,对含有较高水平放射性的原煤、煤渣及煤灰对环境污染的累积效应是不容忽视的问题.
Investigated concomitant radioactivity of some lignite in the subregion of aggregative coal in west Yunnan Province, paying special attention to the concomitant radioactivity level about paragenesis between germanium and coal in the Lincang basin and another coal mine in Luxi. Compared the concomitant radioactivity level with the natural from Yunnan Provinceial Station of Environmental Radioactivity Supervision, and analyzed the relationship between radioactivity level and the lithology or coaly of coal mine, the results show that lower charred lignite, especially in the bastard coal and lignite that are rich in organic material or charred phytoclast, has a higher concomitant radioactivity level. Suggest that, in the course of depleting the source coal mine unboundedly, the cumulative effect on environment contamination from higher radioactivity level of coal, coal slag and coom, is a fateful matter that can not be neglected.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2007年第7期762-766,共5页
Journal of China Coal Society
关键词
伴生放射性
煤
放射性水平
污染防治
concomitant radioactivity
coal
radioactivity level
contamination prevention
