含重金属底泥污染评价及无害化处理方法

Pollution Assessment and Harmless Treatment Methods of Sediment Containing Heavy Metals

近年来中国河流湖泊的底泥在不同程度上受到重金属的污染,对含重金属底泥的修复治理工作已成为加强推进生态文明建设的重要内容。文章介绍了中国河流湖泊底泥重金属污染现状,分析了内梅罗污染指数评价法、地累积指数法、潜在生态风险指数法这3种主要重金属污染评价方法的侧重点,总结了含重金属底泥的物理、化学、生物修复方法的优缺点,并对底泥重金属污染今后研究着力点提出了建议。

In recent years, the sediments of rivers and lakes in China have been polluted by heavy metals to varying degrees. The restoration and treatment of sediments containing heavy metals has become an important part of strengthening the construction of ecological civilization. This paper introduces the current situation of heavy metal pollution in sediment of rivers and lakes in China,analyzes the emphasis of three main heavy metal pollution assessment methods. Nemero pollution index evaluation method, land accumulation index method, potential ecological risk index method. It summarizes the advantages and disadvantages of physical,chemical and biological remediation methods for sediment containing heavy metals, and puts forward suggestions for future research on heavy metal pollution in sediment.