海洋沉积物重金属污染特征及治理措施研究  

Research on the characteristics and control measures of heavy metal pollution in marine sediments

作　　者：李政明 陈晨[2] LI Zheng-ming;CHEN Chen(Tianjin Research Institute for Water Transport Engineering,M.O.T,Tianjin 300456,China;Tianjin University of Science and Technology,Tianjin 300456,China)

机构地区：[1]交通运输部天津水运工程科学研究所,天津300456 [2]天津科技大学,天津300456

出　　处：《化学工程师》2025年第2期40-43,106,共5页Chemical Engineer

基　　金：天津市自然科学基金项目(22JCYBJC02819)。

摘　　要：为了综合评估海洋沉积物中重金属的污染风险,提高海洋沉积物中重金属的修复治理效率,以渤海湾某油气区域的海洋沉积物为研究对象,对不同取样点以及不同取样时间的海洋沉积物样品中的重金属含量进行了分析,并开展了化学淋洗修复治理措施研究。结果表明,研究区域内海洋沉积物中重金属Pb、Cd和Cu的含量相对较高,污染风险较大。化学淋洗修复治理措施能够有效降低海洋沉积物中重金属的含量,起到良好的修复治理效果。经过化学淋洗修复处理后的目标海洋沉积物中重金属Pb、Cd和Cu的含量大幅降低,分别为87.2、0.8和60.9mg·kg^(-1),可以达到国家标准GB 18668-2002中规定的第二类标准要求。In order to comprehensively evaluate the pollution risk of heavy metals in marine sediments and improve the remediation efficiency of heavy metals in marine sediments,the heavy metal content in marine sediment samples from a certain oil and gas area in the Bohai Bay was analyzed at different sampling points and times,and chemical leaching remediation measures were studied.The results indicate that the content of heavy metal Pb,Cd and Cu is relatively high,which poses a greater risk of pollution.Chemical leaching remediation measures can effectively reduce the content of heavy metals in marine sediments and have a good remediation effect.The content of heavy metal Pb、Cd and Cu in the target marine sediment after chemical leaching and remediation treatment has significantly decreased,87.2,0.8 and 60.9mg·kg^(-1),respectively,which can meet the requirements of Class II standards specified in the national standard GB 18668-2002.

关 键 词：海洋沉积物 重金属 污染风险 化学淋洗 治理措施 

分 类 号：X55[环境科学与工程—环境工程] P736[天文地球—海洋地质]