滴滴涕污染场地调查及修复技术

Review on the investigation and remediation methods of DDT-contaminated sites

以国内外关于滴滴涕(DDT)污染场地调查和修复技术研究的文献和案例为基础,首先分析了基于不同场地调查目标和数据获取需求所适用的调查布点及数据分析方法;其次,总结了滴滴涕在不同类型污染场地中的残留浓度和分布规律;再次,综述了国内外已经商业化运行和正在研究中的针对DDTs等持久性有机污染物(POPs)污染场地的修复技术,并阐述了其各自的适用特点;最后提出了滴滴涕污染场地的调查和修复工作中存在的问题和发展方向。

On the basis of the relevant literatures published at home and abroad in recent years, including the development trend, this article tries to deal with DDT contaminated sites in terms of investigation methods, contamination distribution, the remediation methods. First of all, we have made a summary of the point selection and data analysis methods in response to the different information demands for the site investigation. Secondly, we have divided the typical DDT-contaminated sites into five categories according to the investigation results gained from the various sites, that is, the agricultural area, the pesticide plants, the waste dumping sites, shipyard sites and the fishing harbors. Along with the DDT-contaminated sites, analysis has also been done to find the DDTs contamination levels and distribution features, respectively. Thirdly, the article has made a detailed review of the remediation means including the physical-chemical technologies and biological technologies for the different DDT-contaminated sites, while pointing out their respective strengths and drawbacks by giving a list of the DDT versions as a reference to determinating their application range. And, finally, research directions and development trends in the field have been supplied with our comments. Thus, this article has given more clues to the efficient investigations for these potential contaminated sites and further remediation technologies so as to promote a full-fledged research of the contaminated site investigation and remediation system.