Publication
Treatment and energy valorization of residual glycerol in a perfectly mixed batch reactor
| dc.contributor.author | Paulista, Larissa Oliveira | |
| dc.contributor.author | Boaventura, Rui | |
| dc.contributor.author | Vilar, Vítor J.P. | |
| dc.contributor.author | Pinheiro, Alexei | |
| dc.contributor.author | Martins, Ramiro | |
| dc.date.accessioned | 2020-03-24T21:40:39Z | |
| dc.date.available | 2020-03-24T21:40:39Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | The anaerobic digestion of crude glycerol from the production of biodiesel is an alternative that has been studied for its valorization through the production of methane. The high organic load (1800 g COD.L-1) of crude glycerol can cause kinetic stress, which results in an inhibition of methanogenic microorganisms. To circumvent the problem, an alternative is the prior use of ultrasonic energy and the use of microorganisms such as Aspergillus niger and Escherichia coli. Ultrasound promotes the breakdown of the cell wall and membrane, releasing intracellular material that favors biodigestion. In addition, such microorganisms can produce lipases capable of degrading other impurities contained in the residual glycerol, such as long chain fatty acids. The aim of this study is to improve the anaerobic digestion of glycerol through physical (ultrasound) and biological (A. niger and E. coli) pretreatments. The results indicate that the use of ultrasound improved methane generation by 23% for a lower concentration of glycerol (2%). There were also improvements from the use of A. niger in 1.7% glycerol. For the concentration of 3.2% glycerol and the use of E. coli in all experiments caused inhibition of methanogenic microorganisms. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Paulista, L.; Boaventura, R.; Vilar, V.; Pinheiro, A.; Martins, Ramiro (2018). Treatment and energy valorization of residual glycerol in a perfectly mixed batch reactor. In Chempor 2018. Aveiro, Portugal | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10198/21107 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Energy valorizaton | pt_PT |
| dc.subject | Residual glycerol | pt_PT |
| dc.subject | Perfectly mixed batch reactor | pt_PT |
| dc.title | Treatment and energy valorization of residual glycerol in a perfectly mixed batch reactor | pt_PT |
| dc.type | conference paper | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Aveiro, Portugal | pt_PT |
| oaire.citation.title | Chempor 2018 | pt_PT |
| person.familyName | Martins | |
| person.givenName | Ramiro | |
| person.identifier.ciencia-id | EA17-F39C-29C7 | |
| person.identifier.orcid | 0000-0003-4327-7782 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |
| relation.isAuthorOfPublication | bf713e37-c17f-4a4e-8323-a7b770a038bf | |
| relation.isAuthorOfPublication.latestForDiscovery | bf713e37-c17f-4a4e-8323-a7b770a038bf |