摘要
以湘潭锰矿红旗矿区为研究区,对锰矿区土-水界面重金属污染流中Mn、Ni、Cu、Zn、Cd、Pb重金属相关性和主成分进行分析。结果表明:各元素的最大值与最小值之间差异较大,离散程度较大,表现出中到强的变异性;重金属Mn、Zn、Cd、Pb、Cu、Ni在第一主成分上都有很高荷载,且在第一主成分上的载荷远大于在其他两个主成分上的载荷。6种重金属主要来源于矿区内的矿石开采、矿料运输、尾矿库废渣、渗滤液及冶炼厂、随意堆放的废石废渣及废弃私采矿洞,元素Ni在第一、二、三主成分上均有较高的荷载,说明Ni的来源广泛,与矿区农业耕作中污水灌溉、矿石矿渣运输中的洒落等人为活动相关。
Taking the red flag in Xiangtan manganese mine area as the study area,the correlation and principal component of Mn,Ni,Cu,Zn,Cd,Pb were analyzed in contaminated flow from soil water interfaces of Xiangtan manganese ore. The results showed that the difference between the maximum value and minimum value of each element was bigger,and discrete degree was large,the heavy metals of Mn,Zn,Cd,Pb,Cu,Ni had very high load in the first principal component,and the load on the first principal component was much larger than the load at the other two principal components. 6 kinds of heavy metals mainly came from mining ore mining,ore materials transport,waste slag,percolate and smelting plant,waste rock and waste slag pile at the private mining tunnel. Ni had higher load in the first,second or third principal components,indicating that Ni associated to human activities,such as sewage irrigation farming,mining slag transport.
出处
《环境工程》
CAS
CSCD
北大核心
2014年第7期54-58,共5页
Environmental Engineering
基金
国家自然科学基金(51174090)
湖南省自然科学基金资助项目(12JJ8007)
关键词
土-水界面流
重金属
相关分析
主成分分析
soil-water flow interface
heavy metal
correlation analysis
principal component analysis
