Research progress of the application of nanometer TiO2 to refractory organic wastewater treatment and its biological

doi:10.11894/1005-829x.2010.30(9).16

Abstract

Abstract:

Nanometer TiO₂ has been used as an efficient photocatalyst in wastewater treatment,having wide application foreground.The shortcomings and some improvement measures of nanometer TiO₂ photocatalysis are introduced.The present state and foreground of its application to the treatment of refractory organic wastewater from industries such as print and dyeing,perticide,etc.are analyzed.Aiming at the biological security problem of nanometer TiO₂,which possibly existed due to its exposure to the environment,the transfer and transform inside the organisms of nanometer TiO₂ is expounded.The biological toxicitity effect possibly produced on the organism individual/organ level,cell level,and molecule level is also analyzed.The future research direction of the biological security of nanometer TiO₂ is proposed.

Key words: nanometer TiO₂, photocatalysis, refractory organic wastewater, biological security

摘要：

纳米TiO₂作为光催化剂在废水处理领域有广泛的应用前景。介绍了纳米TiO₂光催化技术存在的问题及改进措施,并分析了该技术在印染、农药等难降解有机废水处理中的应用现状与前景。特别是针对纳米TiO₂暴露在环境中可能存在的生物安全性问题,阐述了纳米TiO₂在生物体内的迁移转化,分析其在生物体个体/器官水平、细胞水平、分子水平上可能产生的生物毒性效应,并提出今后纳米TiO₂生物安全性的研究方向。

关键词: 纳米TiO₂, 光催化, 难降解有机废水, 生物安全性

CLC Number:

X703.1

Hu Yinghui, Zheng Guanghong, Wang Lei. Research progress of the application of nanometer TiO₂ to refractory organic wastewater treatment and its biological[J]. INDUSTRIAL WATER TREATMENT, 2010, 30(9): 16-19.

胡颖慧, 郑广宏, 王磊. 纳米TiO₂在难降解有机废水处理中的应用及其生物安全性研究进展[J]. 工业水处理, 2010, 30(9): 16-19.

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https://www.iwt.cn/EN/Y2010/V30/I9/16

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Research progress of the application of nanometer TiO₂ to refractory organic wastewater treatment and its biological

纳米TiO₂在难降解有机废水处理中的应用及其生物安全性研究进展

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