Effect of temperature on VFA's and biogas production in anaerobic solubilization of food waste

Effect of temperature on VFA's and biogas production in anaerobic solubilization of food waste

The effectiveness of methane fermentation treatment used in food waste processing is currently limited by solubilization and acidogenesis. In efforts to improve the treatment process, this study examined the effects of temperature on solubilization and acidogenesis. The solubilization rate of food w...

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Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 29(2009), 12 vom: 01. Dez., Seite 2950-5
1. Verfasser: Komemoto, K (VerfasserIn)
Weitere Verfasser: Lim, Y G, Nagao, N, Onoue, Y, Niwa, C, Toda, T
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Biofuels Fatty Acids, Volatile
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520 |a The effectiveness of methane fermentation treatment used in food waste processing is currently limited by solubilization and acidogenesis. In efforts to improve the treatment process, this study examined the effects of temperature on solubilization and acidogenesis. The solubilization rate of food waste, which was based on suspended solid removal, was 47.5%, 62.2%, 70.0%, 72.7%, 56.1% and 45.9% at 15 degrees C, 25 degrees C, 35 degrees C, 45 degrees C, 55 degrees C and 65 degrees C, respectively. Solubilization rate was accelerated from the middle to late experimental periods under mesophilic (35 degrees C and 45 degrees C) conditions. In contrast, overall solubilization rate was significantly lower under thermophilic (55 degrees C and 65 degrees C) conditions than under mesophilic conditions, although solubilization occurred rapidly in the early experimental period. The production of biogas was high under mesophilic conditions of 35 degrees C and 45 degrees C, at 64.7 and 62.7mL/g-VS, respectively, while it was scarce under thermophilic conditions. Solubilization of food waste was accelerated under both mesophilic and thermophilic conditions; however, solubilization rate was observed to be particularly high under mesophilic conditions, and a shortening of the hydraulic retention time is expected under thermophilic conditions 
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700 1 |a Nagao, N  |e verfasserin  |4 aut 
700 1 |a Onoue, Y  |e verfasserin  |4 aut 
700 1 |a Niwa, C  |e verfasserin  |4 aut 
700 1 |a Toda, T  |e verfasserin  |4 aut 
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