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N-nitrosamine rejection by nanofiltration and reverse osmosis membranes: The importance of membrane characteristics

Journal Article


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Abstract


  • The influence of membrane characteristics on the rejection of eight N-nitrosamines was investigated using one

    nanofiltration (NF), one seawater reverse osmosis (SWRO) and six low pressure reverse osmosis (LPRO) membranes.

    The rejection of the two lowest molecular weight N-nitrosamines, namely N-nitrosodimethylamine

    (NDMA) and N-nitrosomethylethylamine (NMEA), varied in the range from 8–82% to 23–94%, respectively. In

    general, the rejection of NDMA and NMEA increased with decreasing membrane permeability. The impact of

    membrane characteristics became less important for higher molecular weight N-nitrosamines. Among the four

    LPRO membranes (i.e. ESPA2, LFC3, TFC-HR and 70LW) that are commonly used for water reclamation applications,

    similar rejections were obtained for NDMA (37–52%) and NMEA (69–82%). In addition, rejection values of

    NDMA and NMEA among two LPRO membranes (i.e. ESPA2 and 70LW) were almost identical when compared

    under variable permeate flux and feed temperature conditions. However, it is noteworthy that the ESPABmembrane

    could achieve very high rejection of NDMA (as high as 71%) despite having a similar permeability to the

    LPRO membranes. Results reported here suggest that membrane characteristics associated with permeability

    such as the pore size and thickness of the active skin layer can be a key factor determining N-nitrosamine

    rejection.

Authors


  •   Fujioka, Takahiro (external author)
  •   Khan, Stuart J. (external author)
  •   McDonald, James A. (external author)
  •   Roux, Annalie (external author)
  •   Poussade, Yvan (external author)
  •   Drewes, Jörg E. (external author)
  •   Nghiem, Long D.

Publication Date


  • 2013

Citation


  • Fujioka, T., Khan, S. J., McDonald, J. A., Roux, A., Poussade, Y., Drewes, J. E. & Nghiem, L. D. (2013). N-nitrosamine rejection by nanofiltration and reverse osmosis membranes: The importance of membrane characteristics. Desalination, 316 67-75.

Scopus Eid


  • 2-s2.0-84874456385

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1258&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/259

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 67

End Page


  • 75

Volume


  • 316

Place Of Publication


  • Netherlands

Abstract


  • The influence of membrane characteristics on the rejection of eight N-nitrosamines was investigated using one

    nanofiltration (NF), one seawater reverse osmosis (SWRO) and six low pressure reverse osmosis (LPRO) membranes.

    The rejection of the two lowest molecular weight N-nitrosamines, namely N-nitrosodimethylamine

    (NDMA) and N-nitrosomethylethylamine (NMEA), varied in the range from 8–82% to 23–94%, respectively. In

    general, the rejection of NDMA and NMEA increased with decreasing membrane permeability. The impact of

    membrane characteristics became less important for higher molecular weight N-nitrosamines. Among the four

    LPRO membranes (i.e. ESPA2, LFC3, TFC-HR and 70LW) that are commonly used for water reclamation applications,

    similar rejections were obtained for NDMA (37–52%) and NMEA (69–82%). In addition, rejection values of

    NDMA and NMEA among two LPRO membranes (i.e. ESPA2 and 70LW) were almost identical when compared

    under variable permeate flux and feed temperature conditions. However, it is noteworthy that the ESPABmembrane

    could achieve very high rejection of NDMA (as high as 71%) despite having a similar permeability to the

    LPRO membranes. Results reported here suggest that membrane characteristics associated with permeability

    such as the pore size and thickness of the active skin layer can be a key factor determining N-nitrosamine

    rejection.

Authors


  •   Fujioka, Takahiro (external author)
  •   Khan, Stuart J. (external author)
  •   McDonald, James A. (external author)
  •   Roux, Annalie (external author)
  •   Poussade, Yvan (external author)
  •   Drewes, Jörg E. (external author)
  •   Nghiem, Long D.

Publication Date


  • 2013

Citation


  • Fujioka, T., Khan, S. J., McDonald, J. A., Roux, A., Poussade, Y., Drewes, J. E. & Nghiem, L. D. (2013). N-nitrosamine rejection by nanofiltration and reverse osmosis membranes: The importance of membrane characteristics. Desalination, 316 67-75.

Scopus Eid


  • 2-s2.0-84874456385

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1258&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/259

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 67

End Page


  • 75

Volume


  • 316

Place Of Publication


  • Netherlands