Articles producció científica> Enginyeria Mecànica

Particle fractionation controls Escherichia coli release from solid manure

  • Dades identificatives

    Identificador: imarina:9216913
    Autors:
    Sepehrnia NTabatabaei SHNorouzi HGorakifard MShirani HRezanezhad F
    Resum:
    Bacteria transport through soil is a complex process particularly when the cells are released from solid manures and co-transported with particles. This study focuses on understanding of the Escherichia coli release from different particle fractions (0.25-, 0.5-, 1-, and 2-mm) of solid manure and evaluating different influent boundary conditions during cell release from manure and when a solid manure is applied to the soil. The 0.25-mm and 2-mm particle sizes resulted a greater cell release compared to 0.5-mm and 1-mm fractions (p < 0.05). The shape and magnitude of the cell release curves (CRCs) from the original manure bulk were mainly influenced by the two 0.25-mm and 2-mm fractions, respectively. The arithmetic mean for normalizing the CRCs and the time variable- based normalized CRCs for the manure-treated soil were the robust variables in evaluation of the experimental data. However, a single maximum bacteria concentration could provide the realistic dataset for the modeling process. Evaluation of the root-mean-squared-error and Akaike criterion showed that the two- and three-parametric models are recommended for simulating the cell release from solid manure in comparison with one parametric models. This study also suggests considering separate microbial release evaluations, with regards to influent concentration, for manure and manure-treated soils to propose best management practices for controlling bacteria pollution. Further research will reveal the key roles of different woody components and soluble material ratios for the various solid manures in bacteria release.
  • Altres:

    Autor segons l'article: Sepehrnia N; Tabatabaei SH; Norouzi H; Gorakifard M; Shirani H; Rezanezhad F
    Departament: Enginyeria Mecànica
    Autor/s de la URV: Gorakifard, Mohsen
    Paraules clau: Solid manure Release curve Manure particle size Manure management Fecal indicator bacteria Breakthrough curve Bacteria transport solid manure soil particles runoff release curve pathogens manure management enterococci e. coli cattle manure breakthrough curve bacteria attachment animal manure
    Resum: Bacteria transport through soil is a complex process particularly when the cells are released from solid manures and co-transported with particles. This study focuses on understanding of the Escherichia coli release from different particle fractions (0.25-, 0.5-, 1-, and 2-mm) of solid manure and evaluating different influent boundary conditions during cell release from manure and when a solid manure is applied to the soil. The 0.25-mm and 2-mm particle sizes resulted a greater cell release compared to 0.5-mm and 1-mm fractions (p < 0.05). The shape and magnitude of the cell release curves (CRCs) from the original manure bulk were mainly influenced by the two 0.25-mm and 2-mm fractions, respectively. The arithmetic mean for normalizing the CRCs and the time variable- based normalized CRCs for the manure-treated soil were the robust variables in evaluation of the experimental data. However, a single maximum bacteria concentration could provide the realistic dataset for the modeling process. Evaluation of the root-mean-squared-error and Akaike criterion showed that the two- and three-parametric models are recommended for simulating the cell release from solid manure in comparison with one parametric models. This study also suggests considering separate microbial release evaluations, with regards to influent concentration, for manure and manure-treated soils to propose best management practices for controlling bacteria pollution. Further research will reveal the key roles of different woody components and soluble material ratios for the various solid manures in bacteria release.
    Àrees temàtiques: Multidisciplinary sciences Multidisciplinary Medicina i Ciências biológicas ii Ciências biológicas i Biotecnología
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: mohsen.gorakifard@estudiants.urv.cat
    Data d'alta del registre: 2024-07-27
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/pii/S2405844021011415
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Heliyon. 7 (5):
    Referència de l'ítem segons les normes APA: Sepehrnia N; Tabatabaei SH; Norouzi H; Gorakifard M; Shirani H; Rezanezhad F (2021). Particle fractionation controls Escherichia coli release from solid manure. Heliyon, 7(5), -. DOI: 10.1016/j.heliyon.2021.e07038
    DOI de l'article: 10.1016/j.heliyon.2021.e07038
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2021
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Multidisciplinary,Multidisciplinary Sciences
    Solid manure
    Release curve
    Manure particle size
    Manure management
    Fecal indicator bacteria
    Breakthrough curve
    Bacteria
    transport
    solid manure
    soil particles
    runoff
    release curve
    pathogens
    manure management
    enterococci
    e. coli
    cattle manure
    breakthrough curve
    bacteria
    attachment
    animal manure
    Multidisciplinary sciences
    Multidisciplinary
    Medicina i
    Ciências biológicas ii
    Ciências biológicas i
    Biotecnología
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