6533b837fe1ef96bd12a2fbe
RESEARCH PRODUCT
Effect of sludge age on microbial consortia developed in MFCs
Sara MateoL. BorrásPablo CañizaresManuel A. RodrigoN. Zamorano-lópezAurora SecoFrancisco Jesus Fernandez-moralessubject
Microbial fuel cellGeneral Chemical EngineeringMicroorganismPopulation02 engineering and technology010501 environmental sciencesDesulfuromonas01 natural sciencesInorganic ChemistryDesulfobaculaMixed cultureFood scienceeducationWaste Management and Disposal0105 earth and related environmental scienceseducation.field_of_studybiologyRenewable Energy Sustainability and the EnvironmentChemistryOrganic ChemistryBiofilm021001 nanoscience & nanotechnologybiology.organism_classificationPollutionAcholeplasmaFuel Technology0210 nano-technologyBiotechnologydescription
BACKGROUND This work is focused on the assessment of the performance of mini-scale air-breathing microbial fuel cells (MFCs), by monitoring the evolution of the bio-electrogenic activity for a period of 40 days and by comparing the microorganisms populations developed in each of the MFC after this period. RESULTS Five MFCs were operated at sludge ages ranging from 1.4 to 10.0 days. Results showed the superb performance of the MFC operating under a sludge age of 2.5 days. Desulfuromonas, Syntrophothermus, Solitalea, Acholeplasma, Propionicimonas, Desulfobacula and Sphaerochaeta are proposed as potential responsible for the bio-electrogenic activity. CONCLUSIONS Microbial population analysis through Illumina amplicon sequencing demonstrated that despite all MFCs were seeded with the same mixed culture inoculum, the biological cultures developed in the suspension and the biofilm are completely different and depend strongly on sludge age.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-12-01 | Journal of Chemical Technology & Biotechnology |