纳米材料及其技术在水处理中的应用及环境效应

Applications of Nanomaterials and Nanotechnology in Water Treatment and the Environmental Effects

纳米材料及其技术的发展一方面为解决水污染问题提供了机遇,另一方面也给生态环境带来了负面的影响。综述了纳米材料及其技术在污染物吸附、膜分离、光催化、消毒和微生物控制等水处理中的应用,分析了纳米材料的优势、机理、处理效果和不足等,概述了纳米材料在环境中的释放与迁移、分布与转化、毒性作用机制与毒性效应以及目前研究中存在的问题,总结并展望了纳米材料在水处理领域的应用前景和环境安全性问题。

On one band, the development of nanomaterials and nanotechnology provides the opportunity to solve the problem of water pollution, on the other hand, it brings negative impact on the ecological environ-ment. This paper reviews the applications of nanomaterials and pollutant adsorption, membrane separation, photocatalysis, disi discusses the advantages, mechanism, treatment effect and def summarizes the release, migration, distribution, conversion, toxi nanotechnology in water treatment such as nfection and microorganism control. It also iciency of nanomaterials. Besides, the paper c effects and mechanism of nanomaterials in the environment and some existing problems in current studies. In addition, the paper lines the prospects and environmental security problems of nanomaterials in the field summarizes and out of water treatment.