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

journal contribution
posted on 2011-05-01, 00:00 authored by S Jamal Khan, S Ilyas, S Javid, C Visvanathan, Veeriah Jegatheesan
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.

History

Journal

Bioresource technology

Volume

102

Issue

9

Pagination

5331 - 5336

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0960-8524

eISSN

1873-2976

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2010, Elsevier

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