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Removal of carbamazepine and sulfamethoxazole by MBR under anoxic and aerobic conditions

Journal Article


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Abstract


  • This study reveals for the first time that near-anoxic conditions (dissolved oxygen, DO - 0.5 mg/L) can be

    a favorable operating regime for the removal of the persistent micropollutant carbamazepine by MBR

    treatment. The removal efficiencies of carbamazepine and sulfamethoxazole by an MBR were systematically

    examined and compared under near-anoxic (DO'" 0.5 mg/L) and aerobic (DO> 2 mg/L) conditions.

    Preliminary batch tests confirmed that sulfamethoxazole is amenable to both aerobic and anoxic biotransformation.

    However, carbamazepine-a known persistent compound-showed degradation only

    under an anoxic environment. In good agreement with the batch tests, during near-anoxic operation,

    under a high loading of 750 J.l8"/Ld, an exceptionally high removal (68 ± 10%) of carbamazepine was

    achieved. In contrast, low removal efficiency (12 ± 11%) of carbamazepine was observed during operation

    under aerobic conditions. On the other hand, an average removal efficiency of 65% of sulfamethoxazole

    was achieved irrespective of the DO concentrations.

Publication Date


  • 2011

Citation


  • Hai, F. I., Li, X., Price, W. E. & Nghiem, L. D. (2011). Removal of carbamazepine and sulfamethoxazole by MBR under anoxic and aerobic conditions. Bioresource Technology, 102 (22), 10386-10390.

Scopus Eid


  • 2-s2.0-80054839421

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5638&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2707

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 10386

End Page


  • 10390

Volume


  • 102

Issue


  • 22

Place Of Publication


  • Netherlands

Abstract


  • This study reveals for the first time that near-anoxic conditions (dissolved oxygen, DO - 0.5 mg/L) can be

    a favorable operating regime for the removal of the persistent micropollutant carbamazepine by MBR

    treatment. The removal efficiencies of carbamazepine and sulfamethoxazole by an MBR were systematically

    examined and compared under near-anoxic (DO'" 0.5 mg/L) and aerobic (DO> 2 mg/L) conditions.

    Preliminary batch tests confirmed that sulfamethoxazole is amenable to both aerobic and anoxic biotransformation.

    However, carbamazepine-a known persistent compound-showed degradation only

    under an anoxic environment. In good agreement with the batch tests, during near-anoxic operation,

    under a high loading of 750 J.l8"/Ld, an exceptionally high removal (68 ± 10%) of carbamazepine was

    achieved. In contrast, low removal efficiency (12 ± 11%) of carbamazepine was observed during operation

    under aerobic conditions. On the other hand, an average removal efficiency of 65% of sulfamethoxazole

    was achieved irrespective of the DO concentrations.

Publication Date


  • 2011

Citation


  • Hai, F. I., Li, X., Price, W. E. & Nghiem, L. D. (2011). Removal of carbamazepine and sulfamethoxazole by MBR under anoxic and aerobic conditions. Bioresource Technology, 102 (22), 10386-10390.

Scopus Eid


  • 2-s2.0-80054839421

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5638&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2707

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 10386

End Page


  • 10390

Volume


  • 102

Issue


  • 22

Place Of Publication


  • Netherlands