【摘要】 零价铁处理环境中有机卤化物、重金属等污染物是目前公认的一种有效的环境修复技术,具有良好的应用前景。但无论是金属铁可渗透反应墙还是铁纳米颗粒原位注射技术都存在缺陷,对零价铁反应性能的改进十分迫切。文章综述了国内外对零价铁反应性能改进的研究进展,详细介绍了当前最热门的铁纳米颗粒负载技术及铁纳米颗粒分散稳定技术对零价铁反应性能的改进机理及优势,指出了目前研究存在的一些问题,并对零价铁技术修复环境的工程应用提出了展望。更多还原

【Abstract】 Removing the contaminants in the environment such as chlorinated organic compounds and heavy metals by using zero-valent-iron(ZVI) is one of the most effective environmental remediation technologies with great application prospect.It’s urgent to improve the reactive performance of ZVI for both metallic iron permeable reactive barrier and in situ injection of iron nanoparticle.This article overviewed the study on the improvement in the reactive performance of ZVI domestic and international,introduced the improving mechanism and advantages of currently most popular improving methods such as iron nanoparticle loading technology and iron nanoparticle dispersing and stabilizing technology in detail,pointed out some existing problems in current research and gave an outlook on engineering applications of the ZVI technique in remediating the environment.更多还原