You are not logged in.

Landfill leachate treatment using thermophilic membrane bioreactor

Visvanathan, C., Choudhary, M. K., Montalbo, M. T. and Jegatheesan, V. 2007, Landfill leachate treatment using thermophilic membrane bioreactor, Desalination, vol. 204, no. 1-3, pp. 8-16, doi: 10.1016/j.desal.2006.02.028.

Attached Files
Name Description MIMEType Size Downloads

Title Landfill leachate treatment using thermophilic membrane bioreactor
Author(s) Visvanathan, C.
Choudhary, M. K.
Montalbo, M. T.
Jegatheesan, V.
Journal name Desalination
Volume number 204
Issue number 1-3
Start page 8
End page 16
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2007-02-05
ISSN 0011-9164
1873-4464
Keyword(s) extra-cellular polymeric substances
landfill leachate
membrane bioreactor
mesophilic
thermophilic
Summary This study was undertaken to investigate the performance of aerobic thermophilic membrane bioreactor (MBR) treating raw landfill leachate from two landfill sites in Thailand (Pathumthani site and Ram Indra site). The leachates from these sites were mixed in different proportions to produce a BOD/COD ratio of 0.39, 0.57, and 0.65, which was investigated in 3 experimental runs. The COD, ammonia, and TKN composition of the mixed leachate was 12,000, 1700 and 1900 mg/L, respectively. BOD was supplemented with glucose and soy protein. The system was operated at 45 degrees C and at a hydraulic retention time (HRT) of 24 hrs. The membrane used was a ceramic membrane with an ‘‘outside-in’’ flow mode and consisted of 22 open fibres with an inner diameter of approximately 2 mm. The COD removal rate increased from an average value of 62–79% while ammonia removal efficiency decreased from 75 to 60% with gradual increase in BOD. Furthermore, a high BOD removal efficiency (97–99%) was also observed. This clearly indicates that thermophilic system is highly suitable for COD and BOD removal especially at elevated organic loading. However, the system does not favor high nitrogen content wastewaters as the ammonia removal efficiency dropped with increasing BOD/COD ratio. Similar trends were found in TKN analysis as well. However, this system could serve as a pretreatment in removing ammonia. The concentrations of soluble and bound extra-cellular polymeric substances (EPS) found in thermophilic MBR were higher when compared to the corresponding concentrations in a mesophilic MBR, which led to a higher rate of fouling in the thermophilic membrane.
Notes Presented at EuroMed 2006 conference on Desalination strategies in south Mediterranean countries : cooperation between Mediterranean countries of Europe and the southern rim of the Mediterranean, Montpellier, France, 21-25 May 2006.
Language eng
DOI 10.1016/j.desal.2006.02.028
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, Elsevier B.V. All rights reserved.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039654

Document type: Journal Article
Collection: School of Engineering
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 45 times in TR Web of Science
Scopus Citation Count Cited 56 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 84 Abstract Views, 2 File Downloads  -  Detailed Statistics
Created: Thu, 27 Oct 2011, 08:58:11 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 drosupport@deakin.edu.au.