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The influence of Cu(II) on the decay of monochloramine
Fu, Jun; Qu, Jiuhui; Liu, Ruiping; Zhao, Xu; Qiang, Zhimin
2009-01
Source PublicationCHEMOSPHERE
Volume74Issue:2Pages:181-186
AbstractMaintenance of monochloramine concentration during water disinfection is important to ensure the microbial safety of drinking water. The decay of monochloramine always occurs and some Substances present in the water can accelerate this process. Copper often exists in ionic form in water, but the effect of Cu(II) on the decomposition of monochloramine is largely unknown. In this paper, a series of experiments were carried out under varying conditions of pH, Cu(II) and initial monochloramine concentrations. Results showed that the decomposition rate of monochloramine was greatly enhanced by Cu(II), and this enhancement decreased with the increase of solution pH and the decrease of Cu(II) concentration. It was proposed that the monochloramine decomposition in the presence of Cu(II) was catalyzed via complexation between Cu(II) and monochloramine. The X-ray absorption fine structure experiments gave further evidence to this conclusion. The results will provide useful information for selecting proper disinfection method in water disinfection where Cu(II) exists and reasonable monochloramine dosage during chloramination. (C) 2008 Elsevier Ltd. All rights reserved.
Department环境水质学国家重点实验室
KeywordMonochloramine Decay Cu(Ii) Ph Complexation
WOS IDWOS:000262409000001
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/21748
Collection环境水质学国家重点实验室
Recommended Citation
GB/T 7714
Fu, Jun,Qu, Jiuhui,Liu, Ruiping,et al. The influence of Cu(II) on the decay of monochloramine[J]. CHEMOSPHERE,2009,74(2):181-186.
APA Fu, Jun,Qu, Jiuhui,Liu, Ruiping,Zhao, Xu,&Qiang, Zhimin.(2009).The influence of Cu(II) on the decay of monochloramine.CHEMOSPHERE,74(2),181-186.
MLA Fu, Jun,et al."The influence of Cu(II) on the decay of monochloramine".CHEMOSPHERE 74.2(2009):181-186.
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