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  • Disinfection by-product minimisation by organic and inorganic precursor removal

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    80208_1.pdf (217.9Kb)
    Author(s)
    Knight, Nicole
    Farre, M
    Watson, Kalinda
    Keller, J
    Gernjak, W
    Leusch, Frederic
    Bartkow, M
    Birt, J
    Burrell, P
    Griffith University Author(s)
    Leusch, Frederic
    Watson, Kalinda JL.
    Knight, Nicole
    Year published
    2012
    Metadata
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    Abstract
    A matrix of 18 synthetic waters with variable water quality parameters (alkalinity, natural organic matter (NOM), and halide concentration) was prepared. The DBP formation potential of these 18 samples was examined both before treatment, after enhanced coagulation (EC) and after a sequential treatment using EC followed by either powdered activated carbon (PAC), granular activated carbon (GAC), silver-impregnated activated carbon (SIAC), or MIEXesin. The study shows that natural organic matter (NOM) concentration is greatly reduced with EC, and further reduced by each secondary treatment. Halide adsorption was not possible ...
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    A matrix of 18 synthetic waters with variable water quality parameters (alkalinity, natural organic matter (NOM), and halide concentration) was prepared. The DBP formation potential of these 18 samples was examined both before treatment, after enhanced coagulation (EC) and after a sequential treatment using EC followed by either powdered activated carbon (PAC), granular activated carbon (GAC), silver-impregnated activated carbon (SIAC), or MIEXesin. The study shows that natural organic matter (NOM) concentration is greatly reduced with EC, and further reduced by each secondary treatment. Halide adsorption was not possible with EC or PAC, however, MIEXnd GAC had some halide adsorption capacity. SIAC exhibited the greatest halide removal (average 99% adsorption). Total DBP formation was reduced by EC, and further reduced by each secondary treatment process, however, specific highly brominated DBPs increased in concentration with each successive treatment step in all cases except after SIAC treatment. The more highly brominated DBPs may be of a greater public health concern than their chlorinated counterparts, therefore, in salinity-impacted waters, halide removal is desirable.
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    Conference Title
    Science Forum and Stakeholder Engagement: Building Linkages, Collaboration and Science Quality
    Publisher URI
    http://www.urbanwateralliance.org.au/publications/forum2012/
    Copyright Statement
    © 2012 Urban Water Security Research Alliance. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the conference's website for access to the definitive, published version.
    Subject
    Environmental Science and Management not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/47017
    Collection
    • Conference outputs

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