Biohydrogen production by vermihumus-associated microorganisms using agro industrial wastes as substrate
| Autor: | Antonio De León-Rodríguez, Mayra Mena-Enriquez, José Macías-Barragán, Edén Oceguera-Contreras, Margarita Montoya-Buelna, Omar Graciano-Machuca, Armando Arias-García, David Omar Oseguera-Galindo, Roberto Bolaños-Rosales, Oscar Aguilar-Juárez |
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| Rok vydání: | 2019 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Butanol Vinasse Energy Engineering and Power Technology 02 engineering and technology Dark fermentation Raw material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Pulp and paper industry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Fuel Technology Activated sludge chemistry Biohydrogen 0210 nano-technology Bagasse Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 44:9856-9865 |
| ISSN: | 0360-3199 |
| Popis: | Typically dark fermentation is performed using activated sludge consortia and there are not studies on hydrogen production using vermihumus-associated microorganisms documented. Microorganisms from Eisenia foetida casting have proven an efficient anti-recalcitrant activity. We have evaluated hydrogen production by Eisenia foetida lixiviated earthworm as inoculum using agro industrial wastes as substrate. Experiments were performed in 120 ml serological bottles under anaerobic conditions at 40 °C by triplicate. The results showed a hydrogen production of 1571.81, 1246.36 and 232.72 ml H 2 L − 1 from molasses, bagasse and vinasse, respectively. Butyric and acetic acids were the main metabolites produced reaching up to 6.0 and 1.26 g L − 1 , respectively. Butanol and ethanol were also produced, but the maximum concentrations attained were 1.7 and 0.28 g L − 1 , respectively. Interestingly, the bagasse did not require a pretreatment. The results demonstrated that vermihumus-associated microorganisms are capable of producing hydrogen from the recalcitrant raw materials such as the sugarcane bagasse. |
| Databáze: | OpenAIRE |
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