Microbiome characterization of MFCs used for the treatment of swine manure

Autor: Sebastià Puig, Maria Dolors Balaguer, Inmaculada Salcedo-Dávila, Narcís Pous, Anna Vilajeliu-Pons, Lluís Bañeras, Jesús Colprim
Přispěvatelé: Ministerio de Ciencia e Innovación (Espanya)
Rok vydání: 2014
Předmět:
Environmental Engineering
Microbial fuel cell
Denitrification
Bioelectric Energy Sources
Swine
Health
Toxicology and Mutagenesis
Waste Disposal
Fluid
Microbial ecology
Energia de la biomassa
Electrochemistry
Environmental Chemistry
Animals
Organic matter
Desnitrificació
Anaerobiosis
Waste Management and Disposal
Geobacter sulfurreducens
chemistry.chemical_classification
Sewage -- Purification -- Nitrogen removal
biology
Bacteria
Microbiota
Environmental engineering
Microbial fuel cells
Biomass energy
biology.organism_classification
Pollution
Manure
DNA Fingerprinting
Ecologia microbiana
Anaerobic digestion
Biodegradation
Environmental
chemistry
Aigües residuals -- Depuració -- Desnitrificació
Nitrifying bacteria
Environmental chemistry
Biofilms
Nitrification
Cel·la de combustible biològic
Water Microbiology
Zdroj: © Journal of Hazardous Materials, 2015, vol. 288, p. 60-68
Articles publicats (D-EQATA)
DUGiDocs – Universitat de Girona
instname
ISSN: 1873-3336
2009-1028
Popis: Conventional swine manure treatment is performed by anaerobic digestion, but nitrogen is not treated. Microbial Fuel Cells (MFCs) allow organic matter and nitrogen removal with concomitant electricity production. MFC microbiomes treating industrial wastewaters as swine manure have not been characterized. In this study, a multidisciplinary approach allowed microbiome relation with nutrient removal capacity and electricity production. Two different MFC configurations (C-1 and C-2) were used to treat swine manure. In C-1, the nitrification and denitrification processes took place in different compartments, while in C-2, simultaneous nitrification-denitrification occurred in the cathode. Clostridium disporicum and Geobacter sulfurreducens were identified in the anode compartments of both systems. C. disporicum was related to the degradation of complex organic matter compounds and G. sulfurreducens to electricity production. Different nitrifying bacteria populations were identified in both systems because of the different operational conditions. The highest microbial diversity was detected in cathode compartments of both configurations, including members of Bacteroidetes, Chloroflexiaceae and Proteobacteria. These communities allowed similar removal rates of organic matter (2.02-2.09kg CODm-3d-1) and nitrogen (0.11-0.16kgNm-3d-1) in both systems. However, they differed in the generation of electric energy (20 and 2mWm-3 in C-1 and C-2, respectively) This research was financially supported by the Company Abengoa Water within the TEcoAgua project (CEN-20091028), the Spanish Government (CTQ2011-23632) and the Catalan Government (2014 FI-B 00093 and 2012 FI-B 00941)
Databáze: OpenAIRE
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