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Application of microbial electrolysis cells to treat spent yeast from an alcoholic fermentation

dc.creatorGibrán Sidney Alemán Nava
dc.creatorRoberto Parra Saldivar
dc.date2016
dc.date.accessioned2018-10-19T13:37:40Z
dc.date.available2018-10-19T13:37:40Z
dc.identifier.issn9608524
dc.identifier.doi10.1016/j.biortech.2015.10.053
dc.identifier.urihttp://hdl.handle.net/11285/630639
dc.descriptionSpent yeast (SY), a major challenge for the brewing industry, was treated using a microbial electrolysis cell to recover energy. Concentrations of SY from bench alcoholic fermentation and ethanol were tested, ranging from 750 to 1500mgCOD/L and 0 to 2400mgCOD/L respectively. COD removal efficiency (RE), coulombic efficiency (CE), coulombic recovery (CR), hydrogen production and current density were evaluated. The best treatment condition was 750mgCOD/LSY+1200mgCOD/L ethanol giving higher COD RE, CE, CR (90±1%, 90±2% and 81±1% respectively), as compared with 1500mgCOD/LSY (76±2%, 63±7% and 48±4% respectively); ethanol addition was significantly favorable (p value=0.011), possibly due to electron availability and SY autolysis. 1500mgCOD/LSY+1200mgCOD/L ethanol achieved higher current density (222.0±31.3A/m3) and hydrogen production (2.18±0.66 LH2/day/LReactor) but with lower efficiencies (87±2% COD RE, 71.0±.4% CE). Future work should focus on electron sinks, acclimation and optimizing SY breakdown. © 2015 The Authors. Published by Elsevier Ltd.
dc.languageeng
dc.publisherElsevier Ltd
dc.relationhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84945162029&doi=10.1016%2fj.biortech.2015.10.053&partnerID=40&md5=d0b1f107d844746a9ad053d37bbd4e72
dc.relationInvestigadores
dc.relationEstudiantes
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourceBioresource Technology
dc.subjectAntigen-antibody reactions
dc.subjectElectrolysis
dc.subjectElectrolytic cells
dc.subjectEthanol
dc.subjectFermentation
dc.subjectHydrogen
dc.subjectMicrobial fuel cells
dc.subjectRegenerative fuel cells
dc.subjectYeast
dc.subjectAlcoholic fermentation
dc.subjectCOD removal
dc.subjectCOD removal efficiency
dc.subjectCoulombic efficiency
dc.subjectElectron sink
dc.subjectEthanol addition
dc.subjectP-values
dc.subjectTreatment conditions
dc.subjectHydrogen production
dc.subjectalcohol
dc.subjecthydrogen
dc.subjectorganic matter
dc.subjectalcohol
dc.subjectalcohol
dc.subjectbiotechnology
dc.subjectbrewing industry
dc.subjectchemical oxygen demand
dc.subjectconcentration (composition)
dc.subjectefficiency measurement
dc.subjectelectrokinesis
dc.subjectethanol
dc.subjectfermentation
dc.subjecthydrogen
dc.subjectmicrobial activity
dc.subjectyeast
dc.subjectacclimatization
dc.subjectalcoholic fermentation
dc.subjectArticle
dc.subjectautolysis
dc.subjectchemical oxygen demand
dc.subjectcontrolled study
dc.subjectcurrent density
dc.subjectelectrolysis
dc.subjectelectron
dc.subjectfermentation optimization
dc.subjectfermentation technique
dc.subjectmicrobial community
dc.subjectmicrobial degradation
dc.subjectmicrobial electrolysis cell
dc.subjectnonhuman
dc.subjectpriority journal
dc.subjectreactor
dc.subjectspent yeast
dc.subjectwaste component removal
dc.subjectyeast
dc.subjectbacterium
dc.subjectbiochemical oxygen demand
dc.subjectchemistry
dc.subjectelectrolysis
dc.subjectequipment design
dc.subjectfermentation
dc.subjectmetabolism
dc.subjectpH
dc.subjecttemperature
dc.subjectAutolysis
dc.subjectBacteria
dc.subjectBiological Oxygen Demand Analysis
dc.subjectElectrolysis
dc.subjectElectrons
dc.subjectEquipment Design
dc.subjectEthanol
dc.subjectFermentation
dc.subjectHydrogen
dc.subjectHydrogen-Ion Concentration
dc.subjectTemperature
dc.subjectYeasts
dc.subject.classification7 INGENIERÍA Y TECNOLOGÍA
dc.titleApplication of microbial electrolysis cells to treat spent yeast from an alcoholic fermentation
dc.typeArtículo
dc.identifier.volume200
dc.identifier.startpage342
dc.identifier.endpage349
refterms.dateFOA2018-10-19T13:37:40Z


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