太子河本溪城区段水体中重金属分布特征及形态分析

doi:10.3969/j.issn.1673-503X.2019.01.013

气象与环境学报 ›› 2019, Vol. 35 ›› Issue (1): 94-100.doi: 10.3969/j.issn.1673-503X.2019.01.013

太子河本溪城区段水体中重金属分布特征及形态分析

王俭, 马博健, 于英潭, 陆冰, 王守鹏, 刘琳, 张雪, 张朝星

辽宁大学环境学院, 辽宁沈阳 110036

收稿日期:2018-01-04 修回日期:2018-04-03 出版日期:2019-02-28 发布日期:2019-02-28
作者简介:王俭,男,1974年生,教授,主要从事河流生态修复及优化管理工作,E-mail:neuwangjian@sina.com。
基金资助:
水体污染控制与治理科技重大专项（2015ZX07202-012）资助。

Distribution characteristics and speciation analysis of heavy metal in Taizi River flowing through Benxi urban area

WANG Jian, MA Bo-jian, YU Ying-tan, LU Bing, WANG Shou-peng, LIU Lin, ZHANG Xue, ZHANG Chao-xing

College of Environment, Liaoning University, Shenyang 110036, China

Received:2018-01-04 Revised:2018-04-03 Online:2019-02-28 Published:2019-02-28

摘要/Abstract

摘要：

为了解太子河本溪城区段河流水体中重金属分布特性及形态特征，对城区段河流干支流中的重金属Zn，Pb，Cd，Cu，Mn，Cr，Se的含量和分布状况进行了分析，并使用PHREEQC软件对重金属存在形态进行了模拟计算。结果表明：采样区河段7种重金属中污染较重的为Mn和Cr，平均值均超过国家地表水环境质量Ⅳ类标准（GB 3838-2002）。多元统计分析表明，7种重金属可以归为两个主成分，其中第一主成分PC-I （Mn，Cd，Se）主要受人为污染因素的影响；第二主成分PC-Ⅱ （Zn）主要受自然地质背景影响。重金属污染指数范围在28.49-473.76之间，表明采样区段部分水体的重金属污染程度已超过可接受水平。形态分析表明，在水体中7种重金属大多以胶体（Cu （OH）₂）或沉淀（ZnCO₃、PbCO₃、MnCO₃等）的形态存在，溶解态含量较低。本研究结果可为太子河本溪城区段水污染防治与河流水体修复提供参考。

关键词: 重金属, 重金属污染指数(HPI), 形态分析

Abstract:

In order to investigate the distribution characteristics and speciation of heavy metals in Taizi River flowing through Benxi urban area,the concentration and distribution of heavy metals including Zn, Pb, Cd, Cu, Mn, Cr, Se in the river were analyzed.At the same time,the speciations of heavy metals were simulated using PHREEQ software.The results show that Mn and Cr are more serious pollutants relative to the other five kinds of heavy metals due to their average concentrations exceeding the national surface water environmental quality standards IV(GB 3838-2002).Multivariate statistical analysis shows that the seven heavy metals can be classified into two principal components.More specifically,the first principal component i.e.PC-I including Mn, Cd and Se is mainly affected by anthropogenic pollution factors,while the second principal component i.e.PC-II containing Zn is mainly influenced by natural geological background factors.Heavy metal pollution index (HPI) ranges from 28.49 to 473.76,which indicates that the degrees of heavy metals pollution in some parts of the sampling area go beyond the acceptable level.The speciation analysis results show that the seven heavy metals in water exist mainly in the forms of colloform (Cu(OH)₂) or precipitate (ZnCO₃,PbCO₃,MnCO₃,et al) and the concentrations of dissolved forms are lower.The research conclusion can provide references for the water pollution control and river restoration in the Taizi River flowing through Benxi urban area.

Key words: Heavy metals, Heavy metal pollution index (HPI), Speciation analysis

中图分类号:

X522

王俭, 马博健, 于英潭, 陆冰, 王守鹏, 刘琳, 张雪, 张朝星. 太子河本溪城区段水体中重金属分布特征及形态分析[J]. 气象与环境学报, 2019, 35(1): 94-100.

WANG Jian, MA Bo-jian, YU Ying-tan, LU Bing, WANG Shou-peng, LIU Lin, ZHANG Xue, ZHANG Chao-xing. Distribution characteristics and speciation analysis of heavy metal in Taizi River flowing through Benxi urban area[J]. Journal of Meteorology and Environment, 2019, 35(1): 94-100.

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太子河本溪城区段水体中重金属分布特征及形态分析

Distribution characteristics and speciation analysis of heavy metal in Taizi River flowing through Benxi urban area

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