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Presentation
Removal of trace organic contaminants by submerged membrane bioreactors
Faculty of Engineering - Papers (Archive)
  • Long Nghiem, University of Wollongong
  • Nichanan Tadkaew, University of Wollongong
  • Muttucumaru Sivakumar, University of Wollongong
RIS ID
21215
Publication Date
1-1-2007
Publication Details

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. Original item available here

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.

Disciplines
Citation Information
Long Nghiem, Nichanan Tadkaew and Muttucumaru Sivakumar. "Removal of trace organic contaminants by submerged membrane bioreactors" (2007) p. 127 - 134
Available at: http://works.bepress.com/long_nghiem/60/