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An overview of the methods used in the characterization of natural organic matter (NOM) in relation to drinking water treatment
University of Eastern Finland, Finland.
University of Oslo, Norway.
University of Jyväskylä, Finland.
Technology Centre Ketek LTD, Finland.
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2011 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 83, no 11, 1431-1442 p.Article in journal (Refereed) Published
Abstract [en]

Natural organic matter (NOM) is found in all surface, ground and soil waters. During recent decades, reports worldwide show a continuing increase in the color and NOM of the surface water, which has an adverse affect on drinking water purification. For several practical and hygienic reasons, the presence of NOM is undesirable in drinking water. Various technologies have been proposed for NOM removal with varying degrees of success. The properties and amount of NOM, however, can significantly affect the process efficiency. In order to improve and optimise these processes, the characterisation and quantification of NOM at different purification and treatment processes stages is important. It is also important to be able to understand and predict the reactivity of NOM or its fractions in different steps of the treatment. Methods used in the characterisation of NOM include resin adsorption, size exclusion chromatography (SEC), nuclear magnetic resonance (NMR) spectroscopy, and fluorescence spectroscopy. The amount of NOM in water has been predicted with parameters including UV-Vis, total organic carbon (TOC), and specific UV-absorbance (SUVA). Recently, methods by which NOM structures can be more precisely determined have been developed; pyrolysis gas chromatography-mass spectrometry (Py-GC-MS), multidimensional NMR techniques, and Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS). The present review focuses on the methods used for characterisation and quantification of NOM in relation to drinking water treatment.

Place, publisher, year, edition, pages
2011. Vol. 83, no 11, 1431-1442 p.
Keyword [en]
Natural organic matter (NOM), Characterisation, Drinking water, Water treatment, Water analysis
National Category
Earth and Related Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-21012DOI: 10.1016/j.chemosphere.2011.01.018OAI: oai:DiVA.org:lnu-21012DiVA: diva2:543136
Available from: 2012-08-06 Created: 2012-08-06 Last updated: 2016-05-26Bibliographically approved

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Bhatnagar, Amit
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
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  • Other locale
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