Configuration optimization of UV reactors for water disinfection with computational fluid dynamics: Feasibility of using particle minimum UV dose as a performance indicator

doi:10.1016/j.cej.2016.07.042

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Configuration optimization of UV reactors for water disinfection with computational fluid dynamics: Feasibility of using particle minimum UV dose as a performance indicator
	Li, Wentao; Li, Mengkai; Bolton, James R.; Qiang, Zhimin
刊名	CHEMICAL ENGINEERING JOURNAL
	2016-12-15
卷号	306 期号:0 页码:1-8
关键词	Uv Reactor Water Disinfection Configuration Optimization Performance Indicator Particle Minimum Uv Dose
DOI	10.1016/j.cej.2016.07.042
英文摘要	Computational fluid dynamics is a powerful tool for ultraviolet (UV) reactor performance evaluation, since it allows the reactor configuration optimization by comparing the performance indicator [e.g., reduction equivalent dose (RED)] of various UV reactors. In this study, a new performance indicator independent of the microbial UV dose-response curve, namely particle minimum UV dose (D-min), was introduced, and its feasibility was evaluated in the configuration optimization of 3-lamp UV reactors for water disinfection. Results indicate that the D-min could serve as an alternative to the RED in characterizing the UV reactor performance. In general, reactors with a normal (NOR) lamp position pattern (i.e., with one lamp on the top and two at the bottom) had larger D-min values (110-193 mW cm(-2)) than those with a reverse (REV) lamp position pattern (i.e., with two lamps on the top and one at the bottom) (98-160 mW cm(-2)). The largest D-min (193 mW cm(-2)) was obtained in an UV reactor with a lamp relative distance (i.e., the ratio of the distance between the lamp and reactor axes to the reactor radius) of 0.4 and an inlet internal diameter of 75 mm, which could be ascribed to a well-mixed flow resulting from an optimal dispersion of the influent flow by the lamp array. The maximum disinfection flow rate of the UV reactor with the optimal configuration was elevated by 47-100% compared to those of the non-optimally designed reactors, which led to an energy saving efficiency of 32-50%. (C) 2016 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/36163]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Li, Wentao,Li, Mengkai,Bolton, James R.,et al. Configuration optimization of UV reactors for water disinfection with computational fluid dynamics: Feasibility of using particle minimum UV dose as a performance indicator[J]. CHEMICAL ENGINEERING JOURNAL,2016,306(0):1-8.
APA	Li, Wentao,Li, Mengkai,Bolton, James R.,&Qiang, Zhimin.(2016).Configuration optimization of UV reactors for water disinfection with computational fluid dynamics: Feasibility of using particle minimum UV dose as a performance indicator.CHEMICAL ENGINEERING JOURNAL,306(0),1-8.
MLA	Li, Wentao,et al."Configuration optimization of UV reactors for water disinfection with computational fluid dynamics: Feasibility of using particle minimum UV dose as a performance indicator".CHEMICAL ENGINEERING JOURNAL 306.0(2016):1-8.