Comparison of cellulose solubilisation rates in rumen and landfill leachate inoculated reactors

O'Sullivan, C. A., Burrell, P. C., Clarke, W. P. and Blackall, L. L. (2006) Comparison of cellulose solubilisation rates in rumen and landfill leachate inoculated reactors. Bioresource Technology, 97 18: 2356-2363. doi:10.1016/j.biortech.2005.10.021


Author O'Sullivan, C. A.
Burrell, P. C.
Clarke, W. P.
Blackall, L. L.
Title Comparison of cellulose solubilisation rates in rumen and landfill leachate inoculated reactors
Journal name Bioresource Technology   Check publisher's open access policy
ISSN 0960-8524
Publication date 2006
Sub-type Article (original research)
DOI 10.1016/j.biortech.2005.10.021
Volume 97
Issue 18
Start page 2356
End page 2363
Total pages 8
Editor S C Ricke (Editor-in-Chief)
Place of publication Oxford
Publisher Elsevier Sci Ltd
Collection year 2006
Language eng
Subject C1
290899 Civil Engineering not elsewhere classified
780199 Other
Abstract The aim of this study was to conduct a number of controlled digestions to obtain easily comparable cellulose solubilisation rates and to compare these rates to those found in the literature to see which operational differences were significant in affecting cellulose degradation during anaerobic digestion. The results suggested that differences in volumetric cellulose solubilisation rates were not indicative of the true performance of cellulose digestion systems. When cellulose solubilisation rates were normalised by the mass of cellulose in the reactor at each time step, the comparison of the rates became more meaningful. Cellulose solubilisation was surface area limited. Therefore, changes in the loading rate of cellulose to the reactor altered the volumetric solubilisation rate without changing the mass normalised rate. Comparison of mass normalised solubilisation rates from this study and the literature demonstrated that differences in reactor configuration and operational conditions did not significantly impact on the solubilisation rate whereas the difference in composition of the microbial communities showed a marked effect. This work highlights the importance of using appropriately normalised data when making comparisons between systems with differing operational conditions. (c) 2005 Elsevier Ltd. All rights reserved.
Keyword Agricultural Engineering
Biotechnology & Applied Microbiology
Energy & Fuels
Anaerobic Digestion
Cellulose
Landfill
Leachate
Rumen
Solubilisation Rate
Municipal Solid-waste
Anaerobic-digestion
Clostridium-thermocellum
Retention Time
Food Waste
Degradation
Microorganisms
Populations
Performance
Fermentation
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 08:32:45 EST