In this study the influence of water matrix and oxidation treatment by ozone on natural organic matter (NOM) fractionation and corresponding disinfection by-products formation was investigated. Three water types were selected, based on their different NOM contents (5.16–9.85 mg/L dissolved organic carbon (DOC)) and structures (42–79% proportion of hydrophobic NOM fraction). It was determined that increasing the ozone dose (0.2–0.8 mg O3/mg DOC) generally led to reductions in DOC (2–26%) and trihalomethane formation potential values (4–58%). Results of NOM fractionation showed that the reactivity of all the individual NOM fractions towards trihalomethane formation decreased after ozone oxidation (0.8 mg O3/mg DOC) by 47–69%, relative to the raw waters.
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Research Article|
August 23 2014
Effects of water matrix and ozonation on natural organic matter fractionation and corresponding disinfection by-products formation Available to Purchase
J. Agbaba;
J. Agbaba
1University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
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J. Molnar;
1University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
E-mail: [email protected]
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A. Tubić;
A. Tubić
1University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
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M. Watson;
M. Watson
1University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
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S. Maletić;
S. Maletić
1University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
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B. Dalmacija
B. Dalmacija
1University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
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Water Supply (2015) 15 (1): 75–83.
Article history
Received:
May 16 2014
Accepted:
August 11 2014
Citation
J. Agbaba, J. Molnar, A. Tubić, M. Watson, S. Maletić, B. Dalmacija; Effects of water matrix and ozonation on natural organic matter fractionation and corresponding disinfection by-products formation. Water Supply 1 February 2015; 15 (1): 75–83. doi: https://doi.org/10.2166/ws.2014.086
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