Title
Inactivation of Escherichia coli using ultraviolet light emitting diodes (UV-LEDs), monochloramine (NH2CI) and the NH2CI/UV-LED process
Document Type
Conference Proceeding
Publication Date
2018
Keywords
E. coli, UV-LED/NH2CI, Synergism
Abstract
The purpose of this study is to examine the efficiency of monochloramine and UV-LEDs at four different wavelengths (i.e., 255, 265, 285 and 300 nm) for E. coli inactivation. And the potential benefit to E. coli inactivation in the case of sequential exposure to NH2Cl and UV-LEDs (the NH2Cl/UV-LED process) is also investigated. The data suggest that E. coli can be effectively inactivated by the combination of sublethal dose of monochloramine, followed by UV irradiation. Obvious synergism is observed at a relatively high UV dose (i.e., 6 mJ/cm2) and all four wavelengths.
Source Publication
The 2nd Disinfection and Disinfection By-Products Conference, 14-18 May 2018, Tsinghua University, Beijing, China
First Page
1
Last Page
4
Publisher Statement
The International Water Association
Recommended Citation
Jovanovic, O.,Yin, R.,Shang, C.,& Wang, C. (2018). Inactivation of Escherichia coli using ultraviolet light emitting diodes (UV-LEDs), monochloramine (NH2CI) and the NH2CI/UV-LED process. The 2nd Disinfection and Disinfection By-Products Conference, 14-18 May 2018, Tsinghua University, Beijing, China, 1-4. Retrieved from https://repository.vtc.edu.hk/thei-fac-sci-tech-sp/466