On-Site Determination and Monitoring of Real-Time Fluence Delivery for an Operating UV Reactor Based on a True Fluence Rate Detector
文献类型：期刊论文
| 作者 | Li, Wentao; Blatchley, Ernest R., III; Qjang, Zhimin; Li, Mengkai |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2017-07-18 |
| 卷号 | 51期号:14页码:8094-8100 |
| 英文摘要 | At present, on-site fluence (distribution) determination and monitoring of an operating UV system represent a considerable challenge. The recently developed micro fluorescent silica detector (MFSD) is able to measure the approximate true fluence rate (FR) at a fixed position in a UV reactor that can be compared with a FR model directly. Hence it has provided a connection between model calculation and real-time fluence determination. In this study, an on-site determination and monitoring method of fluence delivery for an operating UV reactor was developed. True FR detectors, a UV transmittance (UVT) meter, and a flow rate meter were used for fundamental measurements. The fluence distribution, as well as reduction equivalent fluence (REF), 10th percentile dose in the UV fluence distribution (F-10), minimum fluence (F-min), and mean fluence (F-mean) of a test reactor, was calculated in advance by the combined use of computational fluid dynamics and FR field modeling. A field test was carried out on the test reactor for disinfection of a secondary water supply. The estimated real-time REF, F-10, F-min, and F-mean decreased 73.6%, 71.4%, 69.6%, and 72.9%, respectively, during a 6-month period, which was attributable to lamp output attenuation and sleeve fouling. The results were analyzed with synchronous data from a previously developed triparameter UV monitoring system and water temperature sensor. This study allowed demonstration of an accurate method for on-site, real-time fluence determination which could be used to enhance the security and public confidence of UV based water treatment processes. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39535]  |
| 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 | Li, Wentao,Blatchley, Ernest R., III,Qjang, Zhimin,et al. On-Site Determination and Monitoring of Real-Time Fluence Delivery for an Operating UV Reactor Based on a True Fluence Rate Detector[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(14):8094-8100. |
| APA | Li, Wentao,Blatchley, Ernest R., III,Qjang, Zhimin,&Li, Mengkai.(2017).On-Site Determination and Monitoring of Real-Time Fluence Delivery for an Operating UV Reactor Based on a True Fluence Rate Detector.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(14),8094-8100. |
| MLA | Li, Wentao,et al."On-Site Determination and Monitoring of Real-Time Fluence Delivery for an Operating UV Reactor Based on a True Fluence Rate Detector".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.14(2017):8094-8100. |
入库方式： OAI收割
来源：生态环境研究中心
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