Methane and VFA production in anaerobic digestion of rice straw under dry, semi-dry and wet conditions during start-up phase

Methane and VFA production in anaerobic digestion of rice straw under dry, semi-dry and wet conditions during start-up phase

This work investigates the start-up phase of anaerobic digestion in wet, semi-dry and dry conditions of rice straw analysing the role of volatile fatty acid (VFA) production on process kinetics. Methane production yields and biodegradation kinetics in reactors operated under wet semi-dry and dry con...

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Détails bibliographiques
Publié dans:Environmental technology. - 1993. - 37(2016), 5 vom: 01., Seite 505-12
Auteur principal: Liotta, Flavia (Auteur)
Autres auteurs: Esposito, Giovanni, Fabbricino, Massimiliano, van Hullebusch, Eric D, Lens, Piet N L, Pirozzi, Francesco, Pontoni, Ludovico
Format: Article en ligne
Langue:English
Publié: 2016
Accès à la collection:Environmental technology
Sujets:Journal Article Research Support, Non-U.S. Gov't Total solid dry anaerobic digestion rice straw volatile fatty acids Fatty Acids, Volatile Solid Waste
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520 |a This work investigates the start-up phase of anaerobic digestion in wet, semi-dry and dry conditions of rice straw analysing the role of volatile fatty acid (VFA) production on process kinetics. Methane production yields and biodegradation kinetics in reactors operated under wet semi-dry and dry conditions were investigated. The experimental results showed a reduction in the specific final methane production yield of 57% and 63% in, respectively, semi-dry (TS = 14.8%) and dry (TS = 23.4%) conditions compared to wet (TS = 4.8%) conditions. The total VFA concentration and speciation are proposed as indicators of process development at different total solids content. High VFA concentrations were found in dry conditions, with a maximum total VFA concentration of 2110 mg/kg in dry conditions, 930 mg/kg in semi-dry conditions and 180 mg/kg in wet conditions 
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700 1 |a Fabbricino, Massimiliano  |e verfasserin  |4 aut 
700 1 |a van Hullebusch, Eric D  |e verfasserin  |4 aut 
700 1 |a Lens, Piet N L  |e verfasserin  |4 aut 
700 1 |a Pirozzi, Francesco  |e verfasserin  |4 aut 
700 1 |a Pontoni, Ludovico  |e verfasserin  |4 aut 
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