Skip to main content

Removal of trace organic contaminants by an MBR comprising a mixed culture of bacteria and white-rot fungi

Journal Article


Download full-text (Open Access)

Abstract


  • The degradation of 30 trace organic contaminants (TrOC) by a white-rot fungus-augmented membrane bioreactor (MBR) was investigated. The results show that white-rot fungal enzyme (laccase), coupled with a redox mediator (1-hydroxy benzotriazole, HBT), could degrade TrOC that are resistant to bacterial degradation (e.g. diclofenac, triclosan, naproxen and atrazine) but achieved low removal of compounds (e.g. ibuprofen, gemfibrozil and amitriptyline) that are well removed by conventional activated sludge treatment. Overall, the fungus-augmented MBR showed better TrOC removal compared to a system containing conventional activated sludge. The major role of biodegradation in removal by the MBR was noted. Continuous mediator dosing to MBR may potentially enhance its performance, although not as effectively as for mediator-enhanced batch laccase systems. A ToxScreen3 assay revealed no significant increase in the toxicity of the effluent during MBR treatment of the synthetic wastewater comprising TrOC, confirming that no toxic by-products were produced. © 2013 Elsevier Ltd.

Authors


  •   Nguyen, Luong (external author)
  •   Hai, Faisal I.
  •   Yang, Shufan (external author)
  •   Kang, Jinguo (external author)
  •   Leusch, Frederic (external author)
  •   Roddick, Felicity (external author)
  •   Price, William E.
  •   Nghiem, Long D. (external author)

Publication Date


  • 2013

Citation


  • Nguyen, N. Luong., Hai, F. I., Yang, S., Kang, J., Leusch, F. D. L., Roddick, F., Price, W. E. & Nghiem, L. D. (2013). Removal of trace organic contaminants by an MBR comprising a mixed culture of bacteria and white-rot fungi. Bioresource Technology, 148 234-241.

Scopus Eid


  • 2-s2.0-84884188075

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2334&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1325

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 234

End Page


  • 241

Volume


  • 148

Place Of Publication


  • Netherlands

Abstract


  • The degradation of 30 trace organic contaminants (TrOC) by a white-rot fungus-augmented membrane bioreactor (MBR) was investigated. The results show that white-rot fungal enzyme (laccase), coupled with a redox mediator (1-hydroxy benzotriazole, HBT), could degrade TrOC that are resistant to bacterial degradation (e.g. diclofenac, triclosan, naproxen and atrazine) but achieved low removal of compounds (e.g. ibuprofen, gemfibrozil and amitriptyline) that are well removed by conventional activated sludge treatment. Overall, the fungus-augmented MBR showed better TrOC removal compared to a system containing conventional activated sludge. The major role of biodegradation in removal by the MBR was noted. Continuous mediator dosing to MBR may potentially enhance its performance, although not as effectively as for mediator-enhanced batch laccase systems. A ToxScreen3 assay revealed no significant increase in the toxicity of the effluent during MBR treatment of the synthetic wastewater comprising TrOC, confirming that no toxic by-products were produced. © 2013 Elsevier Ltd.

Authors


  •   Nguyen, Luong (external author)
  •   Hai, Faisal I.
  •   Yang, Shufan (external author)
  •   Kang, Jinguo (external author)
  •   Leusch, Frederic (external author)
  •   Roddick, Felicity (external author)
  •   Price, William E.
  •   Nghiem, Long D. (external author)

Publication Date


  • 2013

Citation


  • Nguyen, N. Luong., Hai, F. I., Yang, S., Kang, J., Leusch, F. D. L., Roddick, F., Price, W. E. & Nghiem, L. D. (2013). Removal of trace organic contaminants by an MBR comprising a mixed culture of bacteria and white-rot fungi. Bioresource Technology, 148 234-241.

Scopus Eid


  • 2-s2.0-84884188075

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2334&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1325

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 234

End Page


  • 241

Volume


  • 148

Place Of Publication


  • Netherlands