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 Detalle_Publicacion

Influence of headspace pressure on methane production in Biochemical Methane Potential (BMP) tests

Abstract: The biochemical methane potential test is the most commonly applied method to determine methane production from organic wastes. One of the parameters measured is the volume of biogas produced which can be determined manometrically by keeping the volume constant and measuring increases in pressure. In the present study, the effect of pressure accumulation in the headspace of the reactors has been studied. Triplicate batch trials employing cocoa shell, waste coffee grounds and dairy manure as substrates have been performed under two headspace pressure conditions. The results obtained in the study showed that headspace overpressures higher than 600 mbar affected methane production for waste coffee grounds. On the contrary, headspace overpressures within a range of 600–1000 mbar did not affect methane production for cocoa shell and dairy manure. With the analyses performed in the present work it has not been possible to determine the reasons for the lower methane yield value obtained for the waste coffee grounds under high headspace pressures.

 Fuente: Waste Management 48 (2016) 193–198

Editorial: Elsevier Limited

 Año de publicación: 2016

Nº de páginas: 6

Tipo de publicación: Artículo de Revista

 DOI: doi:10.1016/j.wasman.2015.11.012

ISSN: 0956-053X,1879-2456

Proyecto español: CTM2011-28042

Url de la publicación: http://dx.doi.org/10.1016/j.wasman.2015.11.012

Autores/as

DAVID VALERO MORALES

JESUS ANDRES MONTES CASAUS

JOSE LUIS RICO GUTIERREZ