Effect of Ozonation and Biotreatment on Molecular Size and

Nov 19, 1996 - The impact of ozonation and ozonation combined with biotreatment on the molecular size (MS) distribution, hydrophilicity, chlorine reac...
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Chapter 13

Downloaded by UNIV MASSACHUSETTS AMHERST on October 8, 2012 | http://pubs.acs.org Publication Date: November 19, 1996 | doi: 10.1021/bk-1996-0649.ch013

Effect of Ozonation and Biotreatment on Molecular Size and Hydrophilic Fractions of Natural Organic Matter 1

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Margarete T. Koechling , Hiba M. Shukairy , and R. Scott Summers 1

Department of Civil and Environmental Engineering, P.O. Box 210071, University of Cincinnati, Cincinnati, OH 45221-0071 Post Graduate Research Program, Oak Ridge Institute for Science and Education, U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, OH 45268 2

The impact of ozonation and ozonation combined with biotreatment on the molecular size (MS) distribution, hydrophilicity, chlorine reactivity and chemical composition of a groundwater natural organic matter was investigated. Chlorination of isolated fractions was conducted under constant precursor concentrations and chlorination conditions. In the untreated solution, the 3000 (>3K), 1000-3000 (1-3K), and 3K MS fraction untreated after 0 after 0 + bio 1-3K MS fraction untreated after 0 after 0 + bio