Fabrication of pilot-scale photocatalytic disinfection device by   installing TiO2 coated helical support into UV annular reactor for   strengthening sterilization

doi:10.1016/j.cej.2015.08.042

CORC > 北京大学 > 环境科学与工程学院

	Fabrication of pilot-scale photocatalytic disinfection device by installing TiO2 coated helical support into UV annular reactor for strengthening sterilization
	Yu, Hongtao ; Song, Liang ; Hao, Yufang ; Lu, Na ; Quan, Xie ; Chen, Shuo ; Zhang, Yaobin ; Feng, Yujie
刊名	CHEMICAL ENGINEERING JOURNAL
	2016
关键词	Photocatalysis Disinfection Helical support E. coli Pilot scale COMPUTATIONAL FLUID-DYNAMICS URBAN WASTE-WATER ESCHERICHIA-COLI INACTIVATION RADIATION BACTERIA STRAIN
DOI	10.1016/j.cej.2015.08.042
英文摘要	Herein, a continuous-flow-mode photocatalytic disinfection device with the capacity of 1 m(3)/h was presented. The core reactor of the photocatalytic device was structured by installing a TiO2 (Degussa P25) coated helical support around a UV lamp into an annular reactor. This photocatalytic device exhibited superior disinfection capability to UV technology. After 2.42 x 10(6) CFU/L of Escherichia coli (E. coli) suspension flowed through the photocatalytic device, 3.05 log(10) reduction of E. coli was removed, while only 2.57 log(10) reduction of E. coli was removed by UV disinfection device. The residual E. coli in the effluent decreased to only 2.16 x 10(3) CFU/L for photocatalytic device, which was distinctly lower than 6.44 x 10(3) CFU/L for UV disinfection process. Photocatalytic disinfection also displayed prominent ability in restraining E. coli reactivation. After 24 h of preservation, concentration of E. coli in effluent for UV process was found as 1.20 x 10(4) CFU/L (0.74 log(10) of increase), 16 times less than 1.99 x 10(6) CFU/L (1.49 log(10) of increase) of UV process. Moreover, the photocatalytic device exhibited high endurance to flux fluctuation and E. coli concentration change. These results demonstrated an access of applying photocatalytic technology to applying for disinfection of wastewater. (C) 2015 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [21377020]; Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [QAK201407]; Program for Liaoning Excellent Talents in University [LJQ2014008]; SCI(E); EI; ARTICLE; quanxie@dlut.edu.cn; 1506-1513; 283
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/422698]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Yu, Hongtao,Song, Liang,Hao, Yufang,et al. Fabrication of pilot-scale photocatalytic disinfection device by installing TiO2 coated helical support into UV annular reactor for strengthening sterilization[J]. CHEMICAL ENGINEERING JOURNAL,2016.
APA	Yu, Hongtao.,Song, Liang.,Hao, Yufang.,Lu, Na.,Quan, Xie.,...&Feng, Yujie.(2016).Fabrication of pilot-scale photocatalytic disinfection device by installing TiO2 coated helical support into UV annular reactor for strengthening sterilization.CHEMICAL ENGINEERING JOURNAL.
MLA	Yu, Hongtao,et al."Fabrication of pilot-scale photocatalytic disinfection device by installing TiO2 coated helical support into UV annular reactor for strengthening sterilization".CHEMICAL ENGINEERING JOURNAL (2016).