Performance of suspended and attached growth MBR systems in treating high strength synthetic wastewater

Khan, S. Jamal, Ilyas, Shazia, Javid, Sadaf, Visvanathan, C., and Jegatheesan, V. (2011) Performance of suspended and attached growth MBR systems in treating high strength synthetic wastewater. Bioresource Technology, 102 (9). pp. 5331-5336.

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The performance of laboratory-scale attached growth (AG) and suspended growth (SG) membrane bioreactors (MBRs) was evaluated in treating synthetic wastewater simulating high strength domestic wastewater. This study investigated the influence of sponge suspended carriers in AG-MBR system, occupying 15% reactor volume, on the removal of chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP), and compared it to that of SG-MBR. Results showed that the removal efficiencies of COD, TN and TP in AG-MBR were 98%, 89% and 58%, respectively as compared to 98%, 74% and 38%, respectively in SG-MBR. Improved TN removal in AG-MBR systems was primarily based on simultaneous nitrification and denitrification (SND) process. These results infer that the presence of small bio-particles having higher microbial activity and the growth of complex biomass captured within the suspended sponge carriers resulted in improved TN and TP removal in AG-MBR.

Item ID: 21765
Item Type: Article (Research - C1)
ISSN: 1873-2976
Keywords: microbial activity, particle size, simultaneous nitrification and denitrification (SND), sponge carrier, submerged membrane bioreactor
Date Deposited: 16 May 2012 06:13
FoR Codes: 09 ENGINEERING > 0904 Chemical Engineering > 090404 Membrane and Separation Technologies @ 100%
SEO Codes: 96 ENVIRONMENT > 9609 Land and Water Management > 960912 Urban and Industrial Water Management @ 100%
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