纳米零价铁的改性及其在废水处理中的应用综述  

Overview of Modification of Nanoscale Zero-Valent Iron in Application of Wastewater Treatment

作　　者：张唯[1,2] 沈峥[1,2] 王晨璐 贺群丹 缪佳[3] 周传龙[1,2] 张亚雷[1,2] 

机构地区：[1]同济大学国家设施农业工程技术研究中心,上海200092 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092 [3]浙江工业大学建筑工程学院,浙江杭州310014

出　　处：《净水技术》2016年第4期23-30,共8页Water Purification Technology

基　　金：国家自然科学基金(21376180)

摘　　要：纳米零价铁比表面积大、反应活性高,近年来在水处理中展现出了许多优势,但其易于团聚和氧化的特点使其在实际应用中受到了一定的限制,因此需要采用适当的方法对纳米零价铁进行改性。作者综述了纳米零价铁在废水处理中的应用及研究进展,包括常用制备方法和对重金属、有机卤代物及硝酸盐等污染物的去除效能;还介绍了纳米零价铁在实际应用中存在的问题及其改性方法,并对该技术的应用前景进行了展望,提出改性方法在工程中的应用是未来的研究方向。With a large specific surface area and high reactivity, nanoscale zero-valent iron （nZVI） has shown many advantages in wastewater treatment. The application of nZVI is limited due to its tendency of aggregation and oxidation thus suitable modification methods are needed. Recent research progress in nZVI application in wastewater treatment is summarized by the authors, including the regular preparation methods, capacities of removing such pollutants as heavy metals, organic halogenated compounds and nitrites. The existing problems in its application and the modification methods are introduced and the application prospects are predicted that the engineering application of the modification methods is the future research direction.

关 键 词：纳米零价铁 制备方法 改性 废水处理 污染物 

分 类 号：X13[环境科学与工程—环境科学]