Investigation on Heavy Metal Pollution Risk of Sediment in a Human-disturbed River, China

2019 3rd International Conference on Environmental and Energy Engineering

生态环境科学

Huang, Senjun^1 ; Wei, Jun^1 ; Chen, Qiuwen^2 ; Zheng, Heng^1 ; Xu, Jianqiang^1 ; Zhao, Wei^1

Power China Huadong Engineering Corporation Limited, Hangzhou

311122, China^1

Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing

100085, China^2

关键词: Correlation analysis;    Direct readings;    Dredging depths;    Heavy metal elements;    Heavy metal pollution;    Potential ecological risk;    Sediment samples;    Vertical distributions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/281/1/012009/pdf
DOI  :  10.1088/1755-1315/281/1/012009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Analysis of heavy metal pollution in sediment is of importance to water treatment. In the present study, borehole columnar sediment samples with 3∼4 m thickness from 86 points along Maozhou River were collected to determine the concentrations of six main metal elements (Cu, Cr, Cd, Pb, Zn, Ni) using plasma direct reading spectroscopy. Then, the vertical distribution of heavy metal among sediment is revealed. What's more, the pollution risk levels at different depths are determined by potential ecological risk index. The heavy metal source is also discussed through correlation analysis between different heavy metal elements. The result of this study provide valuable reference for dredging depth determination as well as treatment of malodorous black water body.