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Biological performance and trace organic contaminant removal by a side-stream ceramic nanofiltration membrane bioreactor

Journal Article


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Abstract


  • This study evaluated the performance of a side-stream ceramic nanofiltration membrane bioreactor (NF-MBR) system with respect to basic water quality parameters as well as trace organic contaminant (TrOC) removal efficiency. The results show a stable biological performance of the continuous NF-MBR system with high effluent quality (total organic carbon < 4 mg L-1 and NH4 +-N below the detection limit). Significantly higher performance by this NF-MBR in comparison to the conventional microfiltration/ultrafiltration MBR regarding the removal of a large number of TrOCs was observed. TrOC removal efficiency depended on their hydrophobicity and molecular features. All hydrophobic compounds (LogD pH=6 > 3) were well removed (>85%), except diazinon (59 ± 7%). Hydrophilic compounds containing electron donating groups were also well removed (>90%). By contrast, hydrophilic compounds containing electron withdrawing groups were poorly removed (8-54%). Most of the 40 TrOCs investigated in this study did not accumulate in the sludge. Only three hydrophobic compounds, namely amitriptyline, triclosan and triclocarban showed considerable accumulation in sludge (>500 ng g-1). Mass balance indicated biodegradation/transformation as the most significant TrOC removal mechanism by this NF-MBR.

Authors


  •   Phan, Hop V. (external author)
  •   McDonald, James A. (external author)
  •   Hai, Faisal I.
  •   Price, William E.
  •   Khan, Stuart J. (external author)
  •   Fujioka, Takahiro (external author)
  •   Nghiem, Long D. (external author)

Publication Date


  • 2016

Citation


  • Phan, H. V., McDonald, J. A., Hai, F. I., Price, W. E., Khan, S. J., Fujioka, T. & Nghiem, L. D. (2016). Biological performance and trace organic contaminant removal by a side-stream ceramic nanofiltration membrane bioreactor. International Biodeterioration and Biodegradation, 113 49-56.

Scopus Eid


  • 2-s2.0-84962503137

Ro Full-text Url


  • http://ro.uow.edu.au/context/eispapers/article/6783/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5755

Number Of Pages


  • 7

Start Page


  • 49

End Page


  • 56

Volume


  • 113

Place Of Publication


  • United Kingdom

Abstract


  • This study evaluated the performance of a side-stream ceramic nanofiltration membrane bioreactor (NF-MBR) system with respect to basic water quality parameters as well as trace organic contaminant (TrOC) removal efficiency. The results show a stable biological performance of the continuous NF-MBR system with high effluent quality (total organic carbon < 4 mg L-1 and NH4 +-N below the detection limit). Significantly higher performance by this NF-MBR in comparison to the conventional microfiltration/ultrafiltration MBR regarding the removal of a large number of TrOCs was observed. TrOC removal efficiency depended on their hydrophobicity and molecular features. All hydrophobic compounds (LogD pH=6 > 3) were well removed (>85%), except diazinon (59 ± 7%). Hydrophilic compounds containing electron donating groups were also well removed (>90%). By contrast, hydrophilic compounds containing electron withdrawing groups were poorly removed (8-54%). Most of the 40 TrOCs investigated in this study did not accumulate in the sludge. Only three hydrophobic compounds, namely amitriptyline, triclosan and triclocarban showed considerable accumulation in sludge (>500 ng g-1). Mass balance indicated biodegradation/transformation as the most significant TrOC removal mechanism by this NF-MBR.

Authors


  •   Phan, Hop V. (external author)
  •   McDonald, James A. (external author)
  •   Hai, Faisal I.
  •   Price, William E.
  •   Khan, Stuart J. (external author)
  •   Fujioka, Takahiro (external author)
  •   Nghiem, Long D. (external author)

Publication Date


  • 2016

Citation


  • Phan, H. V., McDonald, J. A., Hai, F. I., Price, W. E., Khan, S. J., Fujioka, T. & Nghiem, L. D. (2016). Biological performance and trace organic contaminant removal by a side-stream ceramic nanofiltration membrane bioreactor. International Biodeterioration and Biodegradation, 113 49-56.

Scopus Eid


  • 2-s2.0-84962503137

Ro Full-text Url


  • http://ro.uow.edu.au/context/eispapers/article/6783/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5755

Number Of Pages


  • 7

Start Page


  • 49

End Page


  • 56

Volume


  • 113

Place Of Publication


  • United Kingdom