摘要
以江西萍乡煤矿集中开采区作为研究区域,运用Pearson相关性分析、地统计插值法、主成分分析法(PCA)、正定因子矩阵分解法(PMF)等对研究区地下水中Cr、Mn、Cu、Zn、As、Cd、Pb等7种重金属元素的相关性、空间分布特征进行分析,并对其来源进行解析。结果表明:研究区地下水中Mn、Zn、Cu、Pb、Cd、Cr等元素表现为强变异程度,As表现为中等变异程度;重金属空间分布呈现东南低、西北高的特点,污染区域呈面状、片状或斑块状分布特征;PCA和PMF解析结果表明,地下水重金属受工业企业排放、煤矸石淋溶、地质成因、养殖场加油站排放等4种来源影响,主要来源为工业企业排放和煤矸石淋溶。
Taking the concentrated mining area of Pingxiang coal mine in Jiangxi province as the study area,Pearson correlation analysis,statistics interpolation method,principal component analysis(PCA)and positive definite factor matrix decomposition(PMF)were used to analyze the correlation and spatial distribution characteristics of 7 heavy metal elements(Cr,Mn,Cu,Zn,AS,Cd and Pb)in the groundwater of the study area,and its source was analyzed.The results show that Mn,Zn,Cu,Cb,Cd and Cr in groundwater in the study area show strong variation degree,and As shows moderate variation degree;The spatial distribution of heavy metals is low in the southeast and high in the northwest,and the distribution characteristics of contaminated areas are planar,sheet or patchy.The analysis results of PCA and PMF show that heavy metals in groundwater are affected by four sources:discharge from industrial enterprises,leaching of coal gangue,geological origin,and discharge from farms and gas stations,and the main sources are discharge from industrial enterprises and leaching of coal gangue.
作者
胡骞
郭巧玲
杨云松
黄传胜
姜烈
HU Qian;GUO Qiaoling;YANG Yunsong;HUANG Chuansheng;JIANG Lie(School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China;State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China;Faculty of Economics and Management,Nanchang Institute of Science and Technology,Nanchang 330013,China;School of Civil and Architecture Engineering,East China University of Technology,Nanchang 330013,China;Jiangxi Coalfield Geological Survey and Research Institute,Nanchang 330013,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2024年第4期111-119,177,共10页
Nonferrous Metals（Extractive Metallurgy)
基金
江西省人文社会科学项目(22JL15D)
国家自然科学基金资助项目(42162021)
东华理工大学博士基金资助项目(DHBK2019093)
江西省高校人文社会科学研究项目(JJ22111)
江西省教育厅科学技术项目(GJJ2202918)。
关键词
地下水
重金属
污染特征
来源解析
煤炭集中开采区
PCA
PMF
groundwater
heavy metals
pollution characteristics
source analysis
centralized coal mining areas
PCA
PMF
