Skip to main content

Enhancement of removal of trace organic contaminants by powdered activated carbon dosing into membrane bioreactors

Journal Article


Download full-text (Open Access)

Abstract


  • This study compared the removal efficiency of 22 widespread trace organic contaminants by a laboratory-scale membrane bioreactor (MBR) with and without direct addition of powdered activated carbon (PAC) into the activated sludge reactor over a period of 312 days. The removal of hydrophilic and biologically persistent trace organic contaminants was immediately improved to above 95% after the addition of PAC into MBR. However, a compound-specific gradual decrease in removal underscored the requirement for the addition of fresh PAC. Adsorption onto PAC-added sludge appeared to play a significant role in the relatively more effective aqueous phase removal of a few resistant compounds such as carbamazepine in this study. A slower reduction in removal efficiency of compounds showing extraordinary persistence such as fenoprop and diclofenac was observed after raising the PAC concentration in the MBR from 0.1 to 0.5. g/L. Nevertheless, comparison of extent of removal in terms of PAC usage indicated the suitability of more frequent dosing of smaller amounts of PAC. © 2013 Taiwan Institute of Chemical Engineers.

Authors


  •   Nguyen, Luong (external author)
  •   Hai, Faisal I.
  •   Nghiem, Long D. (external author)
  •   Kang, Jinguo (external author)
  •   Price, William E.
  •   Park, C. (external author)
  •   Yamamoto, Kazuo (external author)

Publication Date


  • 2014

Citation


  • Nguyen, N. Luong., Hai, F. I., Nghiem, L. D., Kang, J., Price, W. E., Park, C. & Yamamoto, K. (2014). Enhancement of removal of trace organic contaminants by powdered activated carbon dosing into membrane bioreactors. Journal of the Taiwan Institute of Chemical Engineers, 45 (2), 571-578.

Scopus Eid


  • 2-s2.0-84894649235

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3118&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2109

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 571

End Page


  • 578

Volume


  • 45

Issue


  • 2

Place Of Publication


  • Netherlands

Abstract


  • This study compared the removal efficiency of 22 widespread trace organic contaminants by a laboratory-scale membrane bioreactor (MBR) with and without direct addition of powdered activated carbon (PAC) into the activated sludge reactor over a period of 312 days. The removal of hydrophilic and biologically persistent trace organic contaminants was immediately improved to above 95% after the addition of PAC into MBR. However, a compound-specific gradual decrease in removal underscored the requirement for the addition of fresh PAC. Adsorption onto PAC-added sludge appeared to play a significant role in the relatively more effective aqueous phase removal of a few resistant compounds such as carbamazepine in this study. A slower reduction in removal efficiency of compounds showing extraordinary persistence such as fenoprop and diclofenac was observed after raising the PAC concentration in the MBR from 0.1 to 0.5. g/L. Nevertheless, comparison of extent of removal in terms of PAC usage indicated the suitability of more frequent dosing of smaller amounts of PAC. © 2013 Taiwan Institute of Chemical Engineers.

Authors


  •   Nguyen, Luong (external author)
  •   Hai, Faisal I.
  •   Nghiem, Long D. (external author)
  •   Kang, Jinguo (external author)
  •   Price, William E.
  •   Park, C. (external author)
  •   Yamamoto, Kazuo (external author)

Publication Date


  • 2014

Citation


  • Nguyen, N. Luong., Hai, F. I., Nghiem, L. D., Kang, J., Price, W. E., Park, C. & Yamamoto, K. (2014). Enhancement of removal of trace organic contaminants by powdered activated carbon dosing into membrane bioreactors. Journal of the Taiwan Institute of Chemical Engineers, 45 (2), 571-578.

Scopus Eid


  • 2-s2.0-84894649235

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3118&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2109

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 571

End Page


  • 578

Volume


  • 45

Issue


  • 2

Place Of Publication


  • Netherlands