Incidence of operative parameters in the production of biohydrogen generated from urban organic waste
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Universidad Nacional de Colombia
2019
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| author | Deisy Yuliana Cano Quintero |
| author_facet | Deisy Yuliana Cano Quintero |
| contents | Incidence of operative parameters in the production of biohydrogen generated from urban organic waste Deisy Yuliana Cano Quintero Edilson León Moreno-Cárdenas Agrociencias Stirring Fermentation Optimization Organic matter Renewable energy Organic waste is considered a substrate of great interest to produce biohydrogen. In the present work, the influence of some physical and chemical parameters in the operation of a bioreactor for biohydrogen generation were studied, taking as a substrate organic residue from a wholesale food market without adding inoculum. Therefore, an experimental design of central composition was made, with four factors and two levels. The dependent variables were maximum hydrogen content (% of H2), daily production of hydrogen (L H2 d-1) and its cumulative production (L H2). The independent variables were operation pH (pHo), pH of acidification (pHa), the duration time of the acidification stage, and stirring. A numerical optimization was carried out, allowing the prioritization of the factors, and maximizing the response variables. Resulting in a yield of up to 14.9 L H2 d-1, a hydrogen content of 49.2% and a cumulative production of 21.6 L H2, for pHa values of 4.9; pHo between 6 and 6.1; acidification time of 2 d and stirring of 41.4 rpm. Likewise, a graphical optimization was carried out, reaching 14.9 L H2 d-1, a hydrogen content of 44.2% and an accumulated 22.8 L H2, for pHa values between 4.5 and 4.95; pHo between 5.6 and 6.3; acidification time of 2 d, and stirring of 37.1 rpm. Maximum yields were 1.9 L H2 Lwaste.day -1, 4800 mL H2 gCOD -1, and 608.6 m L H2 gTVSadded -1, values similar to those reported by other authors using organic waste in the production of hydrogen, using inoculum. 2019 artículo científico 0304-2847 https://www.redalyc.org/articulo.oa?id=179960155009 https://www.redalyc.org/journal/1799/179960155009/ https://www.redalyc.org/journal/1799/179960155009/html/ https://www.redalyc.org/journal/1799/179960155009/179960155009.epub https://www.redalyc.org/journal/1799/179960155009/movil 10.15446/rfnam.v72n2.73138 en http://www.redalyc.org/revista.oa?id=1799 Revista Facultad Nacional de Agronomía - Medellín application/pdf Universidad Nacional de Colombia Revista Facultad Nacional de Agronomía - Medellín (Colombia) Num.2 Vol.72 |
| format | Artículo científico |
| id | redalyc_179960155009 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Incidence of operative parameters in the production of biohydrogen generated from urban organic waste Deisy Yuliana Cano Quintero Agrociencias Stirring Fermentation Optimization Organic matter Renewable energy Incidence of operative parameters in the production of biohydrogen generated from urban organic waste Deisy Yuliana Cano Quintero Edilson León Moreno-Cárdenas Agrociencias Stirring Fermentation Optimization Organic matter Renewable energy Organic waste is considered a substrate of great interest to produce biohydrogen. In the present work, the influence of some physical and chemical parameters in the operation of a bioreactor for biohydrogen generation were studied, taking as a substrate organic residue from a wholesale food market without adding inoculum. Therefore, an experimental design of central composition was made, with four factors and two levels. The dependent variables were maximum hydrogen content (% of H2), daily production of hydrogen (L H2 d-1) and its cumulative production (L H2). The independent variables were operation pH (pHo), pH of acidification (pHa), the duration time of the acidification stage, and stirring. A numerical optimization was carried out, allowing the prioritization of the factors, and maximizing the response variables. Resulting in a yield of up to 14.9 L H2 d-1, a hydrogen content of 49.2% and a cumulative production of 21.6 L H2, for pHa values of 4.9; pHo between 6 and 6.1; acidification time of 2 d and stirring of 41.4 rpm. Likewise, a graphical optimization was carried out, reaching 14.9 L H2 d-1, a hydrogen content of 44.2% and an accumulated 22.8 L H2, for pHa values between 4.5 and 4.95; pHo between 5.6 and 6.3; acidification time of 2 d, and stirring of 37.1 rpm. Maximum yields were 1.9 L H2 Lwaste.day -1, 4800 mL H2 gCOD -1, and 608.6 m L H2 gTVSadded -1, values similar to those reported by other authors using organic waste in the production of hydrogen, using inoculum. 2019 artículo científico 0304-2847 https://www.redalyc.org/articulo.oa?id=179960155009 https://www.redalyc.org/journal/1799/179960155009/ https://www.redalyc.org/journal/1799/179960155009/html/ https://www.redalyc.org/journal/1799/179960155009/179960155009.epub https://www.redalyc.org/journal/1799/179960155009/movil 10.15446/rfnam.v72n2.73138 en http://www.redalyc.org/revista.oa?id=1799 Revista Facultad Nacional de Agronomía - Medellín application/pdf Universidad Nacional de Colombia Revista Facultad Nacional de Agronomía - Medellín (Colombia) Num.2 Vol.72 |
| title | Incidence of operative parameters in the production of biohydrogen generated from urban organic waste |
| topic | Agrociencias Stirring Fermentation Optimization Organic matter Renewable energy |
| url | https://www.redalyc.org/articulo.oa?id=179960155009 https://www.redalyc.org/journal/1799/179960155009/ https://www.redalyc.org/journal/1799/179960155009/html/ https://www.redalyc.org/journal/1799/179960155009/179960155009.epub https://www.redalyc.org/journal/1799/179960155009/movil |