Incidence of operative parameters in the production of biohydrogen generated from urban organic waste

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dc.creatorDeisy Yuliana Cano Quintero
dc.creatorEdilson León Moreno-Cárdenas
dc.date2019
dc.date.accessioned2026-07-07T03:30:33Z
dc.descriptionOrganic 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.
dc.formatapplication/pdf
dc.identifier0304-2847
dc.identifierhttps://www.redalyc.org/articulo.oa?id=179960155009
dc.identifierhttps://www.redalyc.org/journal/1799/179960155009/
dc.identifierhttps://www.redalyc.org/journal/1799/179960155009/html/
dc.identifierhttps://www.redalyc.org/journal/1799/179960155009/179960155009.epub
dc.identifierhttps://www.redalyc.org/journal/1799/179960155009/movil
dc.identifier10.15446/rfnam.v72n2.73138
dc.identifier.urihttp://hdl.handle.net/123456789/435840
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1799
dc.rightsRevista Facultad Nacional de Agronomía - Medellín
dc.sourceRevista Facultad Nacional de Agronomía - Medellín (Colombia) Num.2 Vol.72
dc.subjectAgrociencias
dc.titleIncidence of operative parameters in the production of biohydrogen generated from urban organic waste
dc.typeartículo científico

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Revista Facultad Nacional de Agronomía - Universidad Nacional de Colombia