Effect of inoculum to substrate ratio (I/S) on municipal solid waste anaerobic degradation kinetics and potential

Copyright © 2012 Elsevier Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 32(2012), 12 vom: 01. Dez., Seite 2258-65
1. Verfasser: Boulanger, Anthony (VerfasserIn)
Weitere Verfasser: Pinet, Elisabeth, Bouix, Marielle, Bouchez, Théodore, Mansour, Alicia A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Gases
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520 |a The goal of this study is to evaluate the impact of the inoculum to substrate ratio (I/S) on the anaerobic degradation potential of municipal solid waste (MSW). Reconstituted MSW samples were thus incubated under batch anaerobic conditions and inoculated with an increasing amount of inoculum originating from a mesophilic sludge digester. I/S tested values were 0 (no inoculum added), 0.015, 0.03, 0.06, 0.12, 0.25, 1, 2 and 4 (gVM(inoculum)/gVM(waste)). The results indicate that the apparent maximal rate of dissolved organic carbon accumulation is reached at I/S=0.12. Under this level, the hydrolysis process is limited by the concentration of biomass and can thus be described as first order kinetics phenomena with respect to biomass for I/S ratios below 0.12. The maximum methane production rate and the minimal latency are reached at a ratio of 2. In addition to that, both methane signature and ARISA show a shift in the methanogenic populations from hydrogenotrophic to acetoclastic 
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700 1 |a Pinet, Elisabeth  |e verfasserin  |4 aut 
700 1 |a Bouix, Marielle  |e verfasserin  |4 aut 
700 1 |a Bouchez, Théodore  |e verfasserin  |4 aut 
700 1 |a Mansour, Alicia A  |e verfasserin  |4 aut 
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