纳米零价铁的制备、改性及场地应用研究进展  

Research Progress in Synthesis,Modification and Field Application of Nano Zero-Valent Iron

作　　者：黄雪征 张永祥[1] 田振军[1] 井琦 叶逸菲[1] HUANG Xuezheng;ZHANG Yongxiang;TIAN Zhenjun;JING Qi;YE Yifei(College of Archieture and Cuil Engineering,Beijing University of Technology,Bejing 100124,China;School of Civil Engineering,Nanyang Instilute of Technology,Nanyang 473000,China)

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]南阳理工学院土木工程学院,河南南阳473000

出　　处：《水处理技术》2021年第1期12-18,26,共8页Technology of Water Treatment

基　　金：国家重点研发计划(2016YFC0401404)。

摘　　要：总结了纳米零价铁常用的制备技术,并比较了各种制备方法的优缺点,分析了纳米零价铁技术在实际应用中存在的问题,叙述了纳米零价铁4种改性方法的研究进展。介绍了国内外关于纳米零价铁技术的中试及场地治理的情况,分析了纳米零价铁工程化应用的制约因素,即纳米零价铁的高制备成本、在地下水流场中的迁移机制不明晰及所造成的生态环境风险难以评估等。认为纳米零价铁技术与生物技术、高级氧化技术、电化学技术等多种技术的联用是未来地下水环境修复治理的一个重要的研究方向,作为新兴的污染场地修复技术在我国有着巨大的发展空间及应用前景。The commonly used preparation technology of nano zero-valent iron(nZVI) were summarized, the advantages and disadvantages of various synthesis methods were compared. The problems existing in the field application of n ZVI technology were analyzed, the research progress of four modification methods of n ZVI were described. The domestic and foreign pilot test and site management of n ZVI technology were introduced, and the restriction factors of engineering application of nZVI were analyzed, such as the high preparation cost of the n ZVI, the unclear migration mechanism of nZVI in groundwater and the difficulty in assessing the ecological environment risk. It is considered that the combination of n ZVI technology and other technologies such as biotechnology, advanced oxidation technology, electrochemical technology is an important research direction in the future.As a new remediation technology for contaminated sites, it has great development space and application prospects in China.

关 键 词：纳米零价铁 制备 改性 场地应用 

分 类 号：X505[环境科学与工程—环境工程]