Performance of an oxidation ditch retrofitted with a membrane bioreactor during the start-up

Tiranantakul, M., Jegatheesan, V., Schneider, P. A. and Fracchia, H. L. 2005, Performance of an oxidation ditch retrofitted with a membrane bioreactor during the start-up, Desalination, vol. 183, no. 1-3, pp. 417-424, doi: 10.1016/j.desal.2005.03.043.

Attached Files
Name Description MIMEType Size Downloads

Title Performance of an oxidation ditch retrofitted with a membrane bioreactor during the start-up
Author(s) Tiranantakul, M.
Jegatheesan, V.
Schneider, P. A.
Fracchia, H. L.
Journal name Desalination
Volume number 183
Issue number 1-3
Start page 417
End page 424
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2005-11-01
ISSN 0011-9164
Keyword(s) oxidation ditch
submerged flat sheet membrane
extracelluler polymeric substance
nutrient removal
Summary The objective of this study is to elucidate the full-scale characteristics of an oxidation ditch (OD) retrofitted with a membrane bioreactor (MBR). Domestic wastewater entering an oxidation ditch at a flow rate of 86 m3/d was directed to a MBR retrofitted into the original secondary sedimentation tank. The MBR contained flat sheet membranes. The data collected for 2 months during the start-up of the system showed that pH was maintained at 7.2 and 6.7 in OD and MBR, respectively. Dissolved oxygen (DO) in MBR remained stable at 7.8 mg/L, while fluctuated in OD. The mixed liquor suspended solids (MLSS) in the OD remained steady at a concentration about 1000 mg/L, but it was gradually building up from 500 mg/L to 2400 mg/L in the MBR during this period. Measurements of carbohydrate and protein were made by extracting the extra cellular polymeric substances (EPS) with sodium hydroxide (NaOH) from the mixed liquor obtained from both OD and MBR. Carbohydrate was predominant in the EPS and the ratios between carbohydrate and protein converged to fixed values from the fourth week; in this case the ratio was 4.5 for OD and 5 for MBR. The variation in EPS contents showed similar trends in both OD and MBR. The integrated treatment facility removed ammonia, COD and BOD at 100, 91.6 and 97.0%, respectively. However, efficiency of nitrate and phosphate removal has not been realized yet.
Notes Presented at the Conference on Desalination and the Environment, European Desalination Society, Santa Margherita, Italy, 22–26 May 2005
Language eng
DOI 10.1016/j.desal.2005.03.043
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 ©2005, Elsevier B.V. All rights reserved
Persistent URL

Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 8 times in TR Web of Science
Scopus Citation Count Cited 12 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 181 Abstract Views, 2 File Downloads  -  Detailed Statistics
Created: Thu, 27 Oct 2011, 08:58:33 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact