CHEN Yu,ZHANG Lian feng,LIU Shu jie,et al.Measurement of UV Output of Monochromatic (254 nm) Low Pressure UV Lamp in Water[J].China Water & Wastewater,2018,34(21):47-52.
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Measurement of UV Output of Monochromatic (254 nm) Low Pressure UV Lamp in Water

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第34卷 Number: 21 Page: 47-52 Column: Date of publication: 2018-10-20
Article number:
1000-4602(2018)21-0047-06
Author(s):
CHEN Yu1; 2; 3; ZHANG Lian feng1; 2; LIU Shu jie1; 2; ZHAO Jian qiang3; WU Bing qi1; 2; LI Meng kai4
(1. Laboratory of Ecological and Environmental Protection, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China; 2. Guangdong Research Center for Development and Application of Environmental Microbial Resources, Shenzhen 518057, China; 3. School of Environmental Science and Engineering, Chang’an University, Xi’an 710061, China; 4. Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China)
Keywords:
UV lamp; UV output; in water; chemical actinometer; Keitz equation; diffuse radiation model
CLC:
TU99
Document code:
C
Abstract:
Chemical actinometer solution (KI/KIO3) was sealed and utilized to measure the irradiance of a low pressure UV lamp in water. The UV output of a lamp could be calculated using the diffuse radiation model based on the measured irradiance data. The international ultraviolet association (IU-VA) recommends the method based on the Keitz equation to measure the UV output of a lamp in air, which is an application of the diffuse radiation model when the absorbance coefficient of the media is zero. This work proposed to expand the application of the IUVA method in water. The influences of the concentration of chemical actinometer solution and the mixing of the solution inside the container were researched. Reflections from the quartz window and the surface of the solution, as well as energy loss inside quartz were calculated. The potential errors on the energy losses were removed. The results indicated good measurement accuracy of the proposed method. The relative difference between two measurements of an 8 W low pressure UV lamp in water with different UV absorbance coefficients was 1.73%.

References:


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Memo

通信作者：张连峰E-mail:tyou6@hotmail.com
作者简介： 陈钰（1993- ），女，贵州贵阳人，硕士研究生，研究方向为紫外线在水净化领域的应用。
E-mail:goover-cy@163.com
收稿日期：2018-05-14

Last Update: 2018-11-01