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Anaerobic co-digestion of the organic fraction of municipal solid waste with several pure organic co-substrates
Ponsá Salas, Sergio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Gea Leiva, Teresa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Fecha: 2011
Resumen: A strategy to improve the operation of working anaerobic digesters treating the organic fraction of municipal solid wastes (OFMSW) to increase the biogas production is studied. It consists of increasing the organic loading rate of the digesters by adding extra organic matter from some problematic organic wastes. Vegetable oil (VO), animal fats (AF), cellulose and protein (protein) were used as pure co-substrates and the co-digestion anaerobic process was analysed in terms of the ultimate methane production, the methane production rate and the hydraulic residence time. The analysis of methane or biogas production led to different conclusions when expressing this parameter on a volatile solids basis or on a reactor volume basis. The need for a combined analysis is highlighted. In addition a new model to predict the biodegradability rate and evaluating the organic matter fraction susceptible to biodegradation was developed and proved to be suitable for assessing anaerobic digestion processes. All four co-substrates used led to some operative improvements. Vegetable oil is the most suitable co-substrate to be anaerobically digested with the OFMSW since all the parameters evaluated were greatly improved compared to the OFMSW digestion.
Ayudas: Ministerio de Educación y Ciencia CTM2009-14073-C02-01
Derechos: Tots els drets reservats.
Lengua: Anglès
Documento: Article ; recerca ; Versió sotmesa a revisió
Materia: Anaerobic digesters ; Biodegradability ; Biogas ; Municipal solid waste
Publicado en: Biosystems engineering, Vol. 108, Issue 4 (April 2011) , p. 352-360, ISSN 1537-5110

DOI: 10.1016/j.biosystemseng.2011.01.007


Pre-print
34 p, 2.8 MB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ingeniería > Grupo de Investigación en Compostaje (GICOM)
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 Registro creado el 2016-09-09, última modificación el 2023-03-09



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