Comparative study on performance of yeast and bacterial membrane bioreactors for high salinity wastewater treatment Dan, N. P., Visvanathan, C., Ben Aim, R. and Jegatheesan, V. 2006, Comparative study on performance of yeast and bacterial membrane bioreactors for high salinity wastewater treatment, International journal of environmental technology and management, vol. 6, no. 6, pp. 612-630. Attached Files Name Description MIMEType Size Downloads Title Comparative study on performance of yeast and bacterial membrane bioreactors for high salinity wastewater treatment Author(s) Dan, N. P. Visvanathan, C. Ben Aim, R. Jegatheesan, V. Journal name International journal of environmental technology and management Volume number 6 Issue number 6 Start page 612 End page 630 Publisher Inderscience Publishers Place of publication Geneva, Switzerland Publication date 2006 ISSN 1466-2132 1741-511X Keyword(s) extra-cellular polymers high salinity hollow fibre membrane membrane fouling bioreactor performance yeast bioreactors bacterial membrane bioreactors wastewater treatment high saline wastewater environmental technology yeast sludge Summary Two laboratory-scale membrane bioreactor systems were investigated to treat high saline wastewater containing 1,000 mg/L COD and 32 g/L NaCl, namely: the yeast membrane bioreactor (YMBR) and the bacterial membrane bioreactor (BMBR). COD removal of both processes was above 90% at a hydraulic retention time (HRT) of 5 hours (volumetric loading of 5 kg COD/m³.d), sludge retention time (SRT) of 50 days (the MLSS of above 14 g/L and the F/M of 0.4 d-1). Under these operating conditions, the YMBR could run at a ten-fold lower transmembrane pressure with significantly reduced membrane fouling rate compared to BMBR. This may be because of low production of adhesive extracellular polymers (ECP) and the secondary filtration layer formed from large yeast cells. ECP production of bacterial sludge was increased considerably at high salt concentrations (32 g/L and 45 g/L) and long SRTs. For the bacterial sludge, the increased salinity led to increase in ECP, whereas the ECP content of the yeast sludge was relatively small. Language eng Field of Research 099999 Engineering not elsewhere classified Socio Economic Objective 970109 Expanding Knowledge in Engineering HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2006, Inderscience Enterprises Ltd. Persistent URL http://hdl.handle.net/10536/DRO/DU:30039713 Document type: Journal Article Collections: Faculty of Science, Engineering and Built Environment School of Engineering Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Thu, 27 Oct 2011, 09:00:54 EST Thu, 27 Oct 2011, 11:46:32 EST Thu, 27 Oct 2011, 11:47:55 EST Thu, 30 Oct 2014, 15:53:26 EST Tue, 04 Nov 2014, 16:57:53 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 154 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Thu, 27 Oct 2011, 09:00:54 EST