Anaerobic Co-digestion of Organic Residues from Different Productive Sectors in Colombia: Biomethanation Potential Assessment
The residues enriched in putrescible materials and those with a high content of organic fraction produce large environmental impacts and other problems associated with the productive sector where they are generated. Colombia has a high biomass potential susceptible to be energetically valorized th...
| Autor Principal: | Thomas Vallejo, María Alexandra |
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| Otros Autores: | Vásquez Suárez, Aura Liseth |
| Formato: | info:eu-repo/semantics/bachelorThesis |
| Idioma: | spa |
| Publicado: |
Universidad Santo Tomás
2017
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| Materias: | |
| Acceso en línea: |
https://hdl.handle.net/11634/2591 |
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| Sumario: |
The residues enriched in putrescible materials and those with a high content of organic fraction produce large
environmental impacts and other problems associated with the productive sector where they are generated.
Colombia has a high biomass potential susceptible to be energetically valorized through biological processes
achieving two functions: treatment and energy production. Anaerobic digestion is established as a technology
with worldwide applications inside the circular biobased economy concept (cradle to cradle). Nevertheless, most
of the studies related to technologies like anaerobic digestion have been concentrated on residues from
industrialized countries. Considering the variability of residues composition depending on the level of
development of a country, it is necessary to assess the biomethanation potential of biomass produced by
different productive sectors in Colombia. In this study, a biomethanation potential assessment of organic
residues (Organic Fraction of Municipal Solid Wastes, swine manure, cocoa husks and pods, residues from the
bottled fruit drinks industry and rice stovers) from different productive sectors in Colombia was carried out. The
biochemical methane potential (BMP) of each residue and its mixtures was carried out in a system which
consisted in a battery of batch reactors (250 and 120 mL bottles) equipped with gasometers. To keep mesophilic
conditions, an immersion thermostated bath was used. For all mixtures, an optimum C/N ratio of 20-30 was
fixed based on the previous physicochemical characterization of the employed residues. The batch digestion
process was evaluated until the total stoppage of gas production. The results indicate that the best mixture in
terms of biogas production is the one containing cocoa, fruits and swine manure (C/N = 24), reporting a
cumulative specific gas production around 497 mL CH4/ |
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