Pre-treatment experiments for the use of Cynara Cardunculus L. as a substrate for the production of biogas

Oliveira, I. D. B.; Lageiro, Manuela; Di Berardino, Santino; Gominho, Jorge; Duarte, E.

Publication

Pre-treatment experiments for the use of Cynara Cardunculus L. as a substrate for the production of biogas

2010-11-08Conference object

dc.contributor.author	Oliveira, I. D. B.
dc.contributor.author	Lageiro, Manuela
dc.contributor.author	Di Berardino, Santino
dc.contributor.author	Gominho, Jorge
dc.contributor.author	Duarte, E.
dc.date.accessioned	2011-02-02T16:37:01Z
dc.date.available	2011-02-02T16:37:01Z
dc.date.issued	2010-11-08
dc.description.abstract	The purpose of the present study was to explore and evaluate the influence of different pretreatments on Cynara stalks over anaerobic digestion and potential methane production. Different pre-treatments followed by anaerobic digestion batch experiments, were carried-out to Cynara stalks feedstock in order to select the most effective combination. After selecting the most suitable inocullum/substrate (I/S) ratio, different pre-treatments: mechanical, thermal, thermal chemical and enzymatic were studied to enhance the biogas and methane yield in correlation with volatile solids (VS) reduction. The most promising pre-treatment was submitted to a final experiment, in order to set up optimized operational parameters. The thermal chemical pre-treatment applied to the substrate, in the final assay, doubled the cumulative methane yield in comparison with the trial conducted with the untreated one. The methane yield achieved was 0.59 l/g VSadded and 0.31 l/g VSadded for the pre-treated and untreated substrate respectively. The enhancement achieved is also shown in terms of VS reduction. Enzymatic pre-treatment can contibute to an improvement of untreated substrate hydrolyses and also an increase in methane yield of 18% in comparison with the one without enzymatic addition. Mechanical pre-treatment combined with the addition of enzymes enhance hydrolyses of the substrate improving inoculums efficiency however, more experiments are required within higher incubation times.	por
dc.identifier.citation	Oliveira, I. D. B.; Lageiro, M.: Di Berardino, S.; Gominho, J.; Duarte, E. Pre-treatment experiments for the use of Cynara Cardunculus L. as a substrate for the production of biogas. In: Venice 2010, Third International Symposium on Energy from Biomass and Waste Venice, Italy; November 8-11, 2010, 11 p.	por
dc.identifier.uri	http://hdl.handle.net/10400.9/1167
dc.language.iso	eng	por
dc.title	Pre-treatment experiments for the use of Cynara Cardunculus L. as a substrate for the production of biogas	por
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferencePlace	Venice, Italy	por
oaire.citation.title	Venice 2010, Third International Symposium on Energy from Biomass and Waste	por
person.familyName	Di Berardino
person.familyName	Gominho
person.givenName	Santino
person.givenName	Jorge
person.identifier	360342
person.identifier.ciencia-id	E21C-1B36-77F6
person.identifier.orcid	0000-0002-1286-4178
person.identifier.orcid	0000-0003-3419-6075
person.identifier.rid	P-4062-2015
person.identifier.rid	B-4816-2009
person.identifier.scopus-author-id	55188504700
person.identifier.scopus-author-id	6507119269
rcaap.rights	openAccess	por
rcaap.type	conferenceObject	por
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