Removal of natural organic matter though membrane filtration and subsequent effect on disinfectant decay

Shurvell, Thomas, Farago, Leanne, Jegatheesan, Veeriah and Shu, Li 2015, Removal of natural organic matter though membrane filtration and subsequent effect on disinfectant decay, Desalination and water treatment, vol. 54, no. 4-5, pp. 881-889, doi: 10.1080/19443994.2014.893210.

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Title Removal of natural organic matter though membrane filtration and subsequent effect on disinfectant decay
Author(s) Shurvell, Thomas
Farago, Leanne
Jegatheesan, Veeriah
Shu, Li
Journal name Desalination and water treatment
Volume number 54
Issue number 4-5
Start page 881
End page 889
Total pages 910
Publisher Taylor & Francis
Place of publication Abingdon, Eng.
Publication date 2015
ISSN 1944-3994
Keyword(s) Chlorine
Chlorine demand
Disinfection by-products
Mathematical modelling
Natural organic matter (NOM)
Summary This study aims to evaluate the effectiveness of membrane filtration in removing natural organic matters (NOMs) from four different source waters and the subsequent effect that it has on total chlorine (TC) demand of these waters. Source water samples were filtered sequentially through membranes with molecular weight cut-off of 3,500, 1,000 and 200 Da as well as RO membrane. The source waters and sequentially filtered samples were dosed with chlorine and the residual chlorine data were used to estimate the TC demand of these waters. A robust chlorine decay model constructed in AQUASIM software was used to do so. More than 80% of the chlorine demand in untreated surface water sources was found to be contributed mainly by NOMs that were larger than 3,500 Da. However, for water treated by granular filtration, the chlorine demand was found to be contributed by NOMs which were down to 200 Da. Sequential filtration through all four membranes reduced chlorine demand by more than 94% in surface waters and 84% in waters treated by granular filtration. Significant reduction in the formation of trihalomethane can be achieved if water is treated by appropriate membranes after granular media filtration. © 2014 © 2014 Balaban Desalination Publications. All rights reserved.
Language eng
DOI 10.1080/19443994.2014.893210
Field of Research 090404 Membrane and Separation Technologies
090407 Process Control and Simulation
090508 Water Quality Engineering
Socio Economic Objective 829803 Management of Liquid Waste from Plant Production (excl. Water)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Taylor and Francis
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