Ozone mass transfer behaviors on physical and chemical absorption for hollow fiber membrane contactors

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Ozone mass transfer behaviors on physical and chemical absorption for hollow fiber membrane contactors
	Yong Zhang, Kuiling Li, Jun Wang, Deyin Hou;Huijuan Liu
刊名	Water Science & Technology
	2017-09
卷号	6 期号:7 页码:1360-1369
关键词	Bubbleless Chemical Absorption Hydrophobic Membrane Membrane Contactor Ozone Physical Absorption
英文摘要	To understand the mass transfer behaviors in hollow fiber membrane contactors, ozone fluxes affected by various conditions and membranes were investigated. For physical absorption, mass transfer rate increased with liquid velocity and the ozone concentration in the gas. Gas flow rate was little affected when the velocity was larger than the critical value, which was 6.1 × 10 3 m/s in this study. For chemical absorption, the flux was determined by the reaction rate between ozone and the absorbent. Therefore, concentration, species, and pH affected the mass transfer process markedly. For different absorbents, the order of mass transfer rate was the same as the reaction rate constant, which was phenol, sodium nitrite, hydrogen peroxide, and oxalate. Five hydrophobic membranes with various properties were employed and the mass transfer behavior can be described by the Graetz–Lévèque equation for the physical absorption process. The results showed the process was controlled by liquid film and the gas phase conditions, and membrane properties did not affect the ozone flux. For the chemical absorption, gas film, membrane and liquid film affected the mass transfer together, and none of them were negligible.
WOS记录号	WOS:000411845600008
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/37285]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Yong Zhang, Kuiling Li, Jun Wang, Deyin Hou;Huijuan Liu. Ozone mass transfer behaviors on physical and chemical absorption for hollow fiber membrane contactors[J]. Water Science & Technology,2017,6(7):1360-1369.
APA	Yong Zhang, Kuiling Li, Jun Wang, Deyin Hou;Huijuan Liu.(2017).Ozone mass transfer behaviors on physical and chemical absorption for hollow fiber membrane contactors.Water Science & Technology,6(7),1360-1369.
MLA	Yong Zhang, Kuiling Li, Jun Wang, Deyin Hou;Huijuan Liu."Ozone mass transfer behaviors on physical and chemical absorption for hollow fiber membrane contactors".Water Science & Technology 6.7(2017):1360-1369.