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Removal of trace organic contaminants by submerged membrane bioreactors

Conference Paper


Abstract


  • Laboratory scale experiments were conducted to investigate the removal

    mechanisms of trace organic contaminants using a submerged MBR system. The system was equipped with a Zeenon ZW-1 membrane module. Bisphenol A (BPA) and sulfamethoxazole were selected as model trace organics for the EDCs and PhACs, respectively. Results obtained from this study demonstrate an excellent performance of MBRs regarding basic

    water quality parameters such as turbidity, TOC and TN. However, removal efficiency of specific trace organic contaminants was found strongly dependent on their physicochemical properties. Approximately 90% removal of BPA was recorded, while under the same condition, the removal efficiency of sulfamethoxazole was only about 50%. Both biodegradation and adsorption to the sludge were thought to be responsible for the removal of BPA, which is a relatively hydrophobic organic compound. In contrast, the latter mechanism was absent for sulfamethoxazole as this compound is rather hydrophilic. Results reported here indicate that it may be possible to predict the removal efficiency of trace organic contaminants by a submerged MBR system based on their physicochemical properties. This

    would lead to better selection of subsequent complementary treatment processes prior to indirect potable water reuse.

Authors


Publication Date


  • 2007

Citation


  • Nghiem, L. D., Tadkaew, N. & Sivakumar, M. (2007). Removal of trace organic contaminants by submerged membrane bioreactors. IMSTEC 2007: International Membrane Science and Technology Conference (pp. 127-134). Sydney: University of New South Wales.

Scopus Eid


  • 2-s2.0-57949096533

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1691

Start Page


  • 127

End Page


  • 134

Place Of Publication


  • http://www.sciencedirect.com/science/article/pii/S0011916408006358

Abstract


  • Laboratory scale experiments were conducted to investigate the removal

    mechanisms of trace organic contaminants using a submerged MBR system. The system was equipped with a Zeenon ZW-1 membrane module. Bisphenol A (BPA) and sulfamethoxazole were selected as model trace organics for the EDCs and PhACs, respectively. Results obtained from this study demonstrate an excellent performance of MBRs regarding basic

    water quality parameters such as turbidity, TOC and TN. However, removal efficiency of specific trace organic contaminants was found strongly dependent on their physicochemical properties. Approximately 90% removal of BPA was recorded, while under the same condition, the removal efficiency of sulfamethoxazole was only about 50%. Both biodegradation and adsorption to the sludge were thought to be responsible for the removal of BPA, which is a relatively hydrophobic organic compound. In contrast, the latter mechanism was absent for sulfamethoxazole as this compound is rather hydrophilic. Results reported here indicate that it may be possible to predict the removal efficiency of trace organic contaminants by a submerged MBR system based on their physicochemical properties. This

    would lead to better selection of subsequent complementary treatment processes prior to indirect potable water reuse.

Authors


Publication Date


  • 2007

Citation


  • Nghiem, L. D., Tadkaew, N. & Sivakumar, M. (2007). Removal of trace organic contaminants by submerged membrane bioreactors. IMSTEC 2007: International Membrane Science and Technology Conference (pp. 127-134). Sydney: University of New South Wales.

Scopus Eid


  • 2-s2.0-57949096533

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1691

Start Page


  • 127

End Page


  • 134

Place Of Publication


  • http://www.sciencedirect.com/science/article/pii/S0011916408006358