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https://hdl.handle.net/1822/31886
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Campo DC | Valor | Idioma |
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dc.contributor.author | Silva, Sérgio | por |
dc.contributor.author | Cavaleiro, A. J. | por |
dc.contributor.author | Pereira, M. A. | por |
dc.contributor.author | Stams, Alfons Johannes Maria | por |
dc.contributor.author | Alves, M. M. | por |
dc.contributor.author | Sousa, D. Z. | por |
dc.date.accessioned | 2014-12-11T17:56:32Z | - |
dc.date.available | 2014-12-11T17:56:32Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Silva, Sérgio; Cavaleiro, A. J.; Pereira, M. A.; Stams, A. J. M.; Alves, M. M.; Sousa, D. Z., Long-term acclimation of anaerobic sludges for high-rate methanogenesis from LCFA. Biomass and Bioenergy, 67(31), 297-303, 2014 | por |
dc.identifier.issn | 0961-9534 | por |
dc.identifier.uri | https://hdl.handle.net/1822/31886 | - |
dc.description.abstract | Inhibition of methanogens by long chain fatty acids (LCFA) and the low numbers of LCFA-degrading bacteria are limitations to exploit biogas production from fat-rich wastewaters. Generally reactors fail due to excessive LCFA accumulation onto the sludge. Here, long-term acclimation and bioaugmentation with a LCFA-degrading coculture were hypothesized as strategies to enhance methanogenic conversion of these compounds. Anaerobic sludges previously exposed to LCFA for more than 100 days converted a specific biomass-associated substrate of (3.2 ± 0.1) kg·kg−1 with very short lag phases (<1 day), whereas non-acclimated sludges showed lag phases of 11–15 days for metabolizing (1.6–1.8) kg·kg−1. Addition of a coculture of Syntrophomonas zehnderi and Methanobacterium formicicum to sludges previously loaded with LCFA and containing different amounts of biomass-associated substrate (from (0.5–3.2) kg·kg−1) did not improve methane production neither lag phases were shortened, indicating that the endogenous microbiota are not a limiting factor. Clearly, we show that long-term sludge acclimation to LCFA is essential for high rate methanogenesis from LCFA. | por |
dc.description.sponsorship | The authors acknowledge the financial support by the European Regional Development Fund - ERDF, through the Operational Program Thematic Factors of Competitiveness - COMPETE, and by Portuguese funds, through the Portuguese Foundation for Science and Technology (FCT), in the frame of the project FCOMP-01-0124-FEDER-014784. FCT Strategic Project PEst-OE/EQB/LA0023/2013 is also acknowledged. A.J. Cavaleiro thanks FCT for the post-doctoral fellowship ref. SFRH/BPD/75247/2010. A.J.M. Stams has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement n. [323009]. | por |
dc.language.iso | eng | por |
dc.publisher | Pergamon Press Ltd. | por |
dc.rights | openAccess | por |
dc.subject | High-rate methanogenesis | por |
dc.subject | Long term acclimation | por |
dc.subject | Syntrophomonas zehnderi | por |
dc.subject | Methanobacterium formicicum | por |
dc.subject | LCFA | por |
dc.title | Long-term acclimation of anaerobic sludges for high-rate methanogenesis from LCFA | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.comments | CEB17848 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 297 | por |
oaire.citationEndPage | 303 | por |
oaire.citationIssue | 31 | por |
oaire.citationConferencePlace | United Kingdom | - |
oaire.citationTitle | Biomass and Bioenergy | por |
oaire.citationVolume | 67 | por |
dc.date.updated | 2014-11-28T17:51:59Z | - |
dc.identifier.doi | 10.1016/j.biombioe.2014.05.012 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Biomass and Bioenergy | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_17848_1.pdf | 276,23 kB | Adobe PDF | Ver/Abrir |