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Ozonation of N-nitrosamines in the reverse osmosis concentrate from water recycling applications

Journal Article


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Abstract


  • This study aims to evaluate the performance of ozone treatment for removing N-nitrosamines from reverse osmosis (RO) concentrate in water recycling applications. In the absence of any N-nitrosamine precursors, the destruction efficiency of N-nitrosamines was dependent on their molecular weight or the length of the alkyl chain in their molecular structure. Experiments conducted with RO concentrate showed that ozonation could lead to the formation of N-nitrosodimethylamine (NDMA) and N-nitrosodiethylamine (NDEA), resulting in an increase in concentrations of these N-nitrosamines. Nevertheless, ozonation was effective for destruction of N-nitrosamines with molecular weight greater than that of NDEA (102 g/mol). © 2014 Copyright © 2014 International Ozone Association.

Authors


  •   Fujioka, Takahiro (external author)
  •   Khan, Stuart J. (external author)
  •   McDonald, James A. (external author)
  •   Nghiem, Long D.

Publication Date


  • 2014

Citation


  • Fujioka, T., Khan, S. J., McDonald, J. A. & Nghiem, L. D. (2014). Ozonation of N-nitrosamines in the reverse osmosis concentrate from water recycling applications. Ozone: Science and Engineering, 36 (2), 174-180.

Scopus Eid


  • 2-s2.0-84898607317

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3358&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2349

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 174

End Page


  • 180

Volume


  • 36

Issue


  • 2

Place Of Publication


  • United States

Abstract


  • This study aims to evaluate the performance of ozone treatment for removing N-nitrosamines from reverse osmosis (RO) concentrate in water recycling applications. In the absence of any N-nitrosamine precursors, the destruction efficiency of N-nitrosamines was dependent on their molecular weight or the length of the alkyl chain in their molecular structure. Experiments conducted with RO concentrate showed that ozonation could lead to the formation of N-nitrosodimethylamine (NDMA) and N-nitrosodiethylamine (NDEA), resulting in an increase in concentrations of these N-nitrosamines. Nevertheless, ozonation was effective for destruction of N-nitrosamines with molecular weight greater than that of NDEA (102 g/mol). © 2014 Copyright © 2014 International Ozone Association.

Authors


  •   Fujioka, Takahiro (external author)
  •   Khan, Stuart J. (external author)
  •   McDonald, James A. (external author)
  •   Nghiem, Long D.

Publication Date


  • 2014

Citation


  • Fujioka, T., Khan, S. J., McDonald, J. A. & Nghiem, L. D. (2014). Ozonation of N-nitrosamines in the reverse osmosis concentrate from water recycling applications. Ozone: Science and Engineering, 36 (2), 174-180.

Scopus Eid


  • 2-s2.0-84898607317

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3358&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2349

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 174

End Page


  • 180

Volume


  • 36

Issue


  • 2

Place Of Publication


  • United States