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    Citas

    Título
    Bacterial community composition and diversity uncovered in experimental sludge treatment reed bed systems with different swine slurry hydraulic loadings
    Autor
    Arroyo Hernández, PaulaAutor de la institución
    Sáenz De Miera Carnicer, Luis Enrique
    Falagán, Jorge
    Ansola González, GemmaAutor de la instituciónORCID
    Facultad/Centro
    Facultad de Ciencias Biologicas y Ambientales
    Área de conocimiento
    Ecologia
    Datos de la obra
    Ecological Engineering, vol. 123
    Editor
    Elsevier
    Fecha
    2018-11
    Résumé
    Nowadays swine slurry management is a very important environmental issue. Sludge treatment reed bed systems are sludge treatment systems based on constructed wetlands. The present study characterizes via 16S rRNA gene high-throughput the bacterial communities contained in untreated swine slurry and treated swine slurry by means of mesocosm-scale sludge treatment reed beds receiving different slurry loadings. The bacterial community composition varied between the treated and untreated slurry, with a notable slurry loading influence also observed. Richness, diversity and ordination measurements of the studied communities evidenced profound differences between the untreated and treated swine slurry bacterial communities; and only slight differences among the treated swine slurry communities. Interestingly, the slurry loading allowed to define two groups: mesocosm communities residing in the highest hydraulic slurry loadings and other mesocosm communities. The pH value emerged as an important community composition, diversity and ordination predictor. The functional bacterial community composition was predicted through the in silico approach. Results confirmed that the main nitrogen cycle metabolic pathways were present in the mesocosm communities with ammonification and assimilatory nitrate reduction as the most commonly detected nitrogen pathways in treated swine slurry.
    Materia
    Ecología. Medio ambiente
    Palabras clave
    High-throughput sequencing
    Bacterial communities
    STRB
    Swine slurry
    Nitrogen cycle
    Peer review
    SI
    URI
    http://hdl.handle.net/10612/9502
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