紫外LED消毒技术在水体微生物灭活中的研究进展

Research Progresses of Ultraviolet Light-Emitting Diodes (UV LEDs) Disinfection Technology in Water Microbial Inactivation

摘要:

文章首先介绍了紫外发光二极管(UV LED)器件以及目前研发阶段遇到的技术瓶颈。然后分析了UV LED对水中有害微生物的灭活机理。在微生物灭活过程中,详细考察了UV LED的不同应用类型,包括UV LED在不同类型UV反应器中的应用、基于UV LED的高级氧化工艺(AOPs)、不同波长UV LED的组合使用等。最后,总结了深紫外发光二极管在饮用水杀菌消毒领域存在的问题并进行了展望。

Abstract:

In this article, first, the technical bottlenecks of ultraviolet light-emitting diodes (UV LEDs) encountered in the current stage of research and development are introduced. Then the inactivation mechanism of UV LEDs to harmful microorganisms in water is analyzed. In the process of microbial inactivation, the different application types of UV LEDs are examined in detail, including the application of UV LEDs in different types of UV reactors, advanced oxidation processes (AOPs) based on UV LEDs, the combined use of UV LEDs with different wavelengths, etc. Finally, the issues of deep UV LEDs in the field of drinking water sterilization and disinfection are summarized and an outlook is put forward.