典型雨源型河流底泥重金属静态释放规律研究  

Study on the Static Release of Heavy Metals From Typical Rain-Source Rivers Sediment

作　　者：陈姝钰 翁瑞 陆永威 严珠菱 王媛 陈明 杨永安 CHEN Shuyu;WENG Rui;LU Yongwei;YAN Zhuling;WANG Yuan;CHEN Ming;YANG Yongan(College of Environmental Science&Engineering,China West Normal University,Nanchong 637009,China;Suining Eco-environmental Monitoring Centre of Sichuan Province,Suining629000,China)

机构地区：[1]西华师范大学环境科学与工程学院,四川南充637009 [2]四川省遂宁生态环境监测中心站,四川遂宁629000

出　　处：《山东化工》2025年第2期263-266,271,共5页Shandong Chemical Industry

基　　金：四川省大学生创新创业训练计划(S202310638097);西眉河水环境质量状况调查与评估项目(KH2022-096)。

摘　　要：为探究典型雨源型河流底泥重金属释放规律,选择西眉河底泥为实验对象,考察了时间、温度、曝气时长以及pH值对其底泥中Cu、Zn、Pb、Cd、Fe、Mn、Ni、Hg、As静态释放的影响。结果表明:西眉河底泥重金属释放量与静置时间整体呈现先升后降趋势,与pH值和曝气时长呈反比,与水温呈正比,温度影响最为显著。时间、温度、曝气时长以及pH值对Mn和Pb的释放影响最大,对Hg和As的影响最小。In order to investigate the release regularity of heavy metals in the sediment of typical rain-source rivers,the sediment of Ximei River was selected as the experimental object,and the effects of time,temperature,aeration duration and pH value on the static release of Cu,Zn,Pb,Cd,Fe,Mn,Ni,Hg and As in the sediment were investigated.The results showed that the release of heavy metals in the sediment of Ximei River increased first and then decreased as a whole,which was inversely proportional to pH value and aeration time,and positively proportional to water temperature,and temperature had the most significant effect.Time,temperature,aeration duration and pH value have the greatest influence on the release of Mn and Pb,but the least influence on Hg and As.

关 键 词：底泥 重金属 静态释放 雨源型河流 

分 类 号：X53[环境科学与工程—环境工程]