Effect of Carbon/Nitrogen Ratio, Temperature, and Inoculum Source on Hydrogen Production from Dark Codigestion of Fruit Peels and Sewage Sludge
| Autor: | Lirio María Reyna-Gómez, Juan Manuel Alfaro, Santiago Ivan Suarez Vazquez, Arquímedes Cruz-López, Carlos Eduardo Molina-Guerrero, Armando Robledo-Olivo |
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| Rok vydání: | 2019 |
| Předmět: |
020209 energy
biohydrogen Geography Planning and Development TJ807-830 Biomass chemistry.chemical_element 02 engineering and technology Management Monitoring Policy and Law TD194-195 Renewable energy sources chemical oxygen demand 0202 electrical engineering electronic engineering information engineering acetogenesis GE1-350 Food science Hydrogen production Environmental effects of industries and plants Renewable Energy Sustainability and the Environment volatile fatty acids Building and Construction Dark fermentation 021001 nanoscience & nanotechnology Nitrogen Environmental sciences sludge Wastewater chemistry Acetogenesis Fermentation 0210 nano-technology Sludge |
| Zdroj: | Sustainability, Vol 11, Iss 7, p 2139 (2019) Sustainability Volume 11 Issue 7 |
| ISSN: | 2071-1050 |
| Popis: | This paper studies the use of fruit peel biomass and waste sludge from municipal wastewater treatment plants in the metropolitan area of Monterrey, Mexico as an alternative way of generating renewable energy. Using a Plackett&ndash Burman experimental design, we investigated the effects of temperature, inoculum source, and the C/N (Carbon/Nitrogen) ratio on dark fermentation (DF). The results indicate that it is possible to produce hydrogen using fruit peels codigested with sewage sludge. By adjusting the C/N ratio in response to the physicochemical characterization of the substrates, it was revealed that the quantities of carbohydrates and nitrogen were sufficient for the occurrence of the fermentation process with biogas production greater than 2221 ± 5.8 mL L&minus 1Reactor and hydrogen selectivity of 23% (366 ± 1 mL H2· L&minus 1Reactor) at the central point. The kinetic parameters (Hmax= 86.6 mL· 1, Rm = 2.6 mL L&minus 1 h&minus 1, and &lambda = 1.95 h) were calculated using the modified Gompertz model. The quantification of soluble metabolites, such as acetic acid (3600 mg L&minus 1) and ethyl alcohol (3.4 ± 0.25% v/v), confirmed the presence of acetogenesis in the generation of hydrogen. |
| Databáze: | OpenAIRE |
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