- -

Unveiling microbial structures during raw microalgae digestion and co-digestion with primary sludge to produce biogas using semi-continuous AnMBR systems

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Unveiling microbial structures during raw microalgae digestion and co-digestion with primary sludge to produce biogas using semi-continuous AnMBR systems

Show simple item record

Files in this item

dc.contributor.author Zamorano-López, N. es_ES
dc.contributor.author Borrás, L. es_ES
dc.contributor.author Seco, A. es_ES
dc.contributor.author Aguado García, Daniel es_ES
dc.date.accessioned 2021-03-02T04:31:37Z
dc.date.available 2021-03-02T04:31:37Z
dc.date.issued 2020-01-10 es_ES
dc.identifier.issn 0048-9697 es_ES
dc.identifier.uri http://hdl.handle.net/10251/162643
dc.description.abstract [EN] Methane production from microalgae can be enhanced through anaerobic co-digestion with carbon-rich substrates and thus mitigate the inhibition risk associated with its low C:N ratio. Acclimated microbial communities for microalgae disruption can be used as a source of natural enzymes in bioenergy production. However, co-substrates with a certain microbial diversity such as primary sludge might shift the microbial structure. Substrates were generated in a Water Resource Recovery Facility (WRRF) and combined as follows: Scenedesmus or Chlorella digestion and microalgae co-digestion with primary sludge. The study was performed using two lab-scale Anaerobic Membrane Bioreactors (AnMBR). During three years, different feedstocks scenarios for methane production were evaluated with a special focus on the microbial diversity of the AnMBR. 57% of the population was shared between the different feedstock scenarios, revealing the importance of Anaerolineaceae members besides Smithella and Methanosaeta genera. The addition of primary sludge enhanced the microbial diversity of the system during both Chlorella and Scenedesmus co-digestion and promoted different microbial structures. Aceticlastic methanogen Methanosaeta was dominant in all the feedstock scenarios. A more remarkable role of syntrophic fatty acid degraders (Smithella, Syntrophobacteraceae) was observed during co-digestion when only microalgae were digested. However, no significant changes were observed in the microbial composition during anaerobic microalgae digestion when feeding only Chlorella or Scenedesmus. This is the first work revealing the composition of complex communities for semi-continuous bioenergy production from WRRF streams. The stability and maintenance of a microbial core over-time in semi-continuous AnMBRs is here shown supporting their future application in full-scale systems for raw microalgae digestion or codigestion. es_ES
dc.description.sponsorship The Ministry of Economy and Competitiveness (MINECO) and the European Regional Development Fund (ERDF) are gratefully acknowledged for their support to this research work through CTM2011-28595-C02-02 and CTM2014-54980-C2-1-R projects. The authors are thankful to Ph.D. Silvia Greses and Ph.D. candidate Rebecca Serna-Garcia (Universitat de Valencia, Spain) for allowing the collection of digestate samples from their bioreactors and providing a brief data characterization of their performance. As well, authors thank the support of Maria Paches (IIAMA, Valencia, Spain) during phytoplankton monitoring in the photobioreactor plant. Finally, the sequencing service from FISABIO (Valencia, Spain) is also gratefully acknowledged for their technical support during the design stage of this work. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MINECO/CTM2014-54980-C2-1-R es_ES
dc.relation FEDER/CTM2011-28595-C02-01 es_ES
dc.relation.ispartof The Science of The Total Environment es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject 16S rRNA gene es_ES
dc.subject Anaerobic digestion es_ES
dc.subject AnMBR es_ES
dc.subject Biogas es_ES
dc.subject Co-digestion es_ES
dc.subject Microalgae es_ES
dc.subject.classification TECNOLOGIA DEL MEDIO AMBIENTE es_ES
dc.title Unveiling microbial structures during raw microalgae digestion and co-digestion with primary sludge to produce biogas using semi-continuous AnMBR systems es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.scitotenv.2019.134365 es_ES
dc.rights.accessRights Embargado es_ES
dc.date.embargoEndDate 2021-09-10 es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Ingeniería del Agua y del Medio Ambiente - Institut Universitari d'Enginyeria de l'Aigua i Medi Ambient es_ES
dc.description.bibliographicCitation Zamorano-López, N.; Borrás, L.; Seco, A.; Aguado García, D. (2020). Unveiling microbial structures during raw microalgae digestion and co-digestion with primary sludge to produce biogas using semi-continuous AnMBR systems. The Science of The Total Environment. 699:1-12. https://doi.org/10.1016/j.scitotenv.2019.134365 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.scitotenv.2019.134365 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 12 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 699 es_ES
dc.identifier.pmid 31677459 es_ES
dc.relation.pasarela S\403688 es_ES
dc.contributor.funder European Regional Development Fund es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES


This item appears in the following Collection(s)

Show simple item record