Imperial College London
Alternate

Professor Michael Templeton

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Public Health Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6099m.templeton

 
 
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Assistant

 

Miss Judith Barritt +44 (0)20 7594 5967

 
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Location

 

303Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sfynia:2022:10.1039/d1ew00824b,
author = {Sfynia, C and Bond, T and Kanda, R and Templeton, MR},
doi = {10.1039/d1ew00824b},
journal = {Environmental Science: Water Research and Technology},
pages = {742--756},
title = {Simultaneous prediction of trihalomethanes, haloacetic acids, haloacetonitriles and haloacetamides using simulated distribution system tests},
url = {http://dx.doi.org/10.1039/d1ew00824b},
volume = {8},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This study analysed the spatial and temporal occurrence of 29 disinfection by-products (DBPs) formed by chlorination and chloramination. Four full-scale treatment works, and distribution system locations were sampled, and the results were compared with laboratory-based simulated distribution system (SDS) tests. The DBPs monitored incorporated 4 trihalomethanes (THMs), 9 haloacetic acids (HAAs), 7 haloacetonitriles (HANs) and 9 haloacetamides (HAcAms). For the first time, SDS tests were shown to successfully simulate the levels and speciation of HANs and HAcAms in both chlorinated and chloraminated systems. While THM and HAA concentrations generally increased with water age, HAN and HAcAm concentrations fluctuated and resulted in less pronounced overall increases. To explore the impact of switching the disinfectant in distribution, free chlorine and chloramines were applied in the SDS tests, which showed that chloramination not only reduces the yields of THMs (by 34%) and HAAs (by 49%), but also HANs (by 61%) and HAcAms (by 51%), although it shifts speciation towards more brominated HAAs, HANs and HAcAms species when compared against chlorination. Overall, the aim of the study was to demonstrate that SDS tests can be recommended for the simultaneous estimation of THM, HAA, HAN and HAcAm concentrations in distribution systems and to assess the effect of potential DBP minimisation strategies, such as switching the disinfectant in distribution.
AU  - Sfynia,C
AU  - Bond,T
AU  - Kanda,R
AU  - Templeton,MR
DO  - 10.1039/d1ew00824b
EP  - 756
PY  - 2022///
SN  - 2053-1400
SP  - 742
TI  - Simultaneous prediction of trihalomethanes, haloacetic acids, haloacetonitriles and haloacetamides using simulated distribution system tests
T2  - Environmental Science: Water Research and Technology
UR  - http://dx.doi.org/10.1039/d1ew00824b
UR  - https://pubs.rsc.org/en/content/articlehtml/2022/ew/d1ew00824b
UR  - http://hdl.handle.net/10044/1/95398
VL  - 8
ER  -
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