远紫外线技术在水处理领域应用的研究进展

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Abstract The main light sources used for emitting Far-UVC are introduced, such as krypton chloride excimer lamps. The mechanisms and recent research advancements of Far-UVC in microbial inactivation and organic micropollutant degradation are highlighted. In terms of microbial inactivation, Far-UVC could induce irreparable damage to pathogens by disrupting their nucleic acids, proteins, and lipids. For the control of micropollutant, on the one hand, the photon energy of Far-UVC exceeds the average bond dissociation energies of most chemical bonds. On the other hand, some of the organic micropollutants and oxidants have enhanced characteristic absorption under Far-UVC irradiation. This leads to the effective degradation of organic micropollutants by Far-UVC technology. Current studies have indicated that Far-UVC outperforms other UV techniques in some certain microorganism inactivation and organic micropollutant degradation. The effect of background water matrix components on the Far-UVC technique is then analysed. Finally, the prospects for future research directions on Far-UVC technology are dicussed, aiming to provide reference and guidance for research and application of this technology in the field of water treatment.

Key words： Far-UVC KrCl excimer lamps water disinfection organic micropollutant advanced oxidation processes

Received: 13 May 2024

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X703.1

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	Articles by authors
	FENG Ya-nan
	TAN Yu-chen
	LI Hao-xin
	ZHANG Xi
	ZHANG Tian-yang
	LI Zi-fu
	SUN Wen-jun
	AO Xiu-wei

Cite this article:

FENG Ya-nan,TAN Yu-chen,LI Hao-xin等. Process of research on Far-UVC technology in water treatment[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(12): 6787-6795.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I12/6787

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