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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/29104

Title: Biogas from cattle manure as an alternative energy source
Author(s): Castrillón Peláez, Leonor
Fernández Nava, Yolanda
Marañón Maison, María Elena
Ormaechea Menéndez, Pedro
Quiroga Álvarez, Gerardo
Valero Freitag, Sara
Keywords: Cattle manure
Glycerine
Biogas
Ultrasound
Energy
Issue date: Jun-2009
Abstract: Research into alternative renewable energy sources is a global objective aimed at sustaining the current standard of living in developed countries. Biogas production offers a very promising option for generating renewable energy. Asturias, a region in the north of Spain, has a large population of dairy cattle. The industrialization of cattle farming in the region has led to surplus manure, around 696400 t/year. The objective of this research was to study the co-digestion of cattle manure with glycerine. A series of experiments were carried out under mesophilic conditions using batch reactors (CSTR) containing mixtures of cattle manure with different amounts of glycerine. The effect of pre-treatment by the application of ultrasound was also analysed. Results indicate that the addition of glycerine (4%) increases biogas production up to 4-fold. If sonication is applied as a pre-treatment, the production of biogas can be increased up to 8-fold with respect to untreated manure.
URI: http://hdl.handle.net/10651/29104
Sponsored: Spanish Ministry of Education (PROBIOGAS) (Ref. PSE 120000-2007-16)
Appears in Collections:Ponencias, Discursos y Conferencias
Ingeniería Química y Tecnología del Medio Ambiente

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