Use of a marine microbial community as inoculum for biomethane production

Marine substrates are prominent candidates for the production of biofuels, especially for biogas, which is a well-established technology that accepts different types of substrates for its production. However, the use of marine substrates in bioreactors may cause inhibition of methanogenic bacteria d...

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Veröffentlicht in:Environmental technology. - 1998. - 37(2016), 3 vom: 21., Seite 360-8
1. Verfasser: Fistarol, Giovana O (VerfasserIn)
Weitere Verfasser: Rosato, Mario, Thompson, Fabiano L, do Valle, Rogerio de A B, Garcia-BlairsyReina, Guillermo, Salomon, Paulo S
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't biogas biomethane marine bacteria methanogenic bacteria microalgae Biofuels Methane OP0UW79H66
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520 |a Marine substrates are prominent candidates for the production of biofuels, especially for biogas, which is a well-established technology that accepts different types of substrates for its production. However, the use of marine substrates in bioreactors may cause inhibition of methanogenic bacteria due to the addition of seasalts. Here, we explore a simple and economically viable way to circumvent the problem of inoculum inhibition. Based on the current knowledge of the diversity of microorganisms in marine sediments, we tested the direct use of methanogenic bacteria from an anoxic marine environment as inoculum for biomethane production. Both marine and freshwater substrates were added to this inoculum. No pretreatment (that may have enhanced methane production, but would have made the process more expensive) was applied either to the inoculum or to the substrates. For comparison, the same substrates were added to a standard inoculum (cow manure). Both the marine inoculum and cow manure produced methane by anaerobic digestion of the substrates added. The highest methane production (0.299 m(3) kg VS(-1)) was obtained by adding marine microalgae biomass (Chlorella sp. and Synechococcus sp.) to the marine inoculum. No inhibitory effects were observed due to differences in salinity between the inocula and substrates. Our results indicate the potential of using both marine inoculum and substrates for methane production 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a biogas 
650 4 |a biomethane 
650 4 |a marine bacteria 
650 4 |a methanogenic bacteria 
650 4 |a microalgae 
650 7 |a Biofuels  |2 NLM 
650 7 |a Methane  |2 NLM 
650 7 |a OP0UW79H66  |2 NLM 
700 1 |a Rosato, Mario  |e verfasserin  |4 aut 
700 1 |a Thompson, Fabiano L  |e verfasserin  |4 aut 
700 1 |a do Valle, Rogerio de A B  |e verfasserin  |4 aut 
700 1 |a Garcia-BlairsyReina, Guillermo  |e verfasserin  |4 aut 
700 1 |a Salomon, Paulo S  |e verfasserin  |4 aut 
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773 1 8 |g volume:37  |g year:2016  |g number:3  |g day:21  |g pages:360-8 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2015.1069900  |3 Volltext 
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