文章基本信息

标题：The Case for LED-UVC as a Primary Disinfectant for Small Sustainable Drinking Water Systems
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作者：Hichem Hadjeres ; Soni M. Pradhanang ; Thomas Boving 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2019
卷号：280
DOI：10.1051/matecconf/201928005014
语种：English
出版社：EDP Sciences
摘要：High loads of natural organic matter (NOM) in source water increase levels of toxic byproducts during disinfection, including trihalomethanes (THMs) which are formed when NOM is chlorinated. This study explores the efficacy of using UVC-LED as a primary disinfectant, with lower concentrations of chlorine used as a secondary disinfectant. Both treatment trains with conventional chlorination and UV irradiation with low chlorination reduced total coliforms and E. Coli counts to less than 1 Cfu/100 ml. UV with low chlorination produced approximately 4.6 times less THMs compared to conventional chlorination.