云南化工2024，Vol.51Issue(3)：33-35,43,4.DOI:10.3969/j.issn.1004-275X.2024.03.08
贵州某煤矸石堆场重金属迁移研究
Study on Heavy Metal Migration in a Coal Gangue Yard in Guizhou
摘要
Abstract
Coal gangue contains a variety of heavy metals,there is a certain risk of pollution to the surrounding cultivated land.In this paper,the soil around a coal gangue yard in Guizhou was taken as the research object.The heavy metals were dissolved by digestion method,and the con-tents were determined by atomic absorption spectrometry.The results showed that the contents of Pb,Cu,Cd,Zn and Cr(mg/kg)are 24.735-73.22,67.2-239.28,6.40-9.97,60.96-104.70 and 13.33-41.67,respectively.Heavy metals migrate regularly along the direction of slope elevation reduction,downwind direction and mountain water ditch direction.Finally,through the geological accumulation index(Igeo),it was found that Cd was slightly polluted,Cu was slightly polluted to moderately polluted,and Pb at some points reached severe pollution and very serious pollution.关键词
煤矸石/重金属/污染/迁移/地质积累指数Key words
coal gangue/heavy metals/pollution/migration/geological accumulation index分类
矿业与冶金引用本文复制引用
石开仪,刘品祯,周静..贵州某煤矸石堆场重金属迁移研究[J].云南化工,2024,51(3):33-35,43,4.基金项目
贵州省高等学校工程研究中心(黔教技[2023]046) （黔教技[2023]046）
青年科技人才成长项目(黔教合KY字[2019]219). （黔教合KY字[2019]219）
