Articles producció científica> Enginyeria Química

Pilot scale dewatering of Chlorella sorokiniana and Dunaliella tertiolecta by sedimentation followed by dynamic filtration

  • Dades identificatives

    Identificador: imarina:5132675
    Autors:
    Haponska, M.Clavero, E.Salvado, J.Farriol, X.Torras, C.
    Resum:
    The present work focuses on the application of pH-induced sedimentation combined with dynamic filtration for microalgae culture concentration at pilot scale. Concentrations were performed on cultures of two microalgae species: Dunaliella tertiolecta and Chlorella sorokiniana. The objective of the combined process was to reduce microalgae dewatering costs. It is true that sedimentation reduces operation costs considerably, but the results of membrane filtration offer a total rejection and high final concentrations, at even a cheaper cost than centrifugation. When using the two technologies in series, high concentration factors with values up to 207.4 for Dunaliella tertiolecta and 245.3 for Chlorella sorokiniana were achieved. The final concentration of Dunaliella tertiolecta was 184.58 g L−1 with 81.5% of water content in the sludge. The concentrations obtained were high enough to dispense with further operations for the sludge to be ready for a cell disruption step using steam explosion. Analytic techniques used were dry weight and optical density. For the filtration, experiments were performed using both commercially available and self-prepared membranes, manufactured from Acrylonitrile Butadiene Styrene: a novel polymer in membrane technology, selected to reduce costs. Each of them could perform in a similar way to commercial membranes in a pilot scale high-shear stress membrane module.
  • Altres:

    Autor segons l'article: Haponska, M.; Clavero, E.; Salvado, J.; Farriol, X.; Torras, C.;
    Departament: Enginyeria Química
    Autor/s de la URV: Farriol Roigés, Francesc Xavier / Salvadó Rovira, Joan / Torras Font, Carles
    Paraules clau: Technology System Sedimentation Pilot demonstration Performance Microalgae Membrane filtration Flocculation Dynamic membrane filtration Dewatering Biomass Biodiesel Abs acrylonitrile butadiene styrene Abs
    Resum: The present work focuses on the application of pH-induced sedimentation combined with dynamic filtration for microalgae culture concentration at pilot scale. Concentrations were performed on cultures of two microalgae species: Dunaliella tertiolecta and Chlorella sorokiniana. The objective of the combined process was to reduce microalgae dewatering costs. It is true that sedimentation reduces operation costs considerably, but the results of membrane filtration offer a total rejection and high final concentrations, at even a cheaper cost than centrifugation. When using the two technologies in series, high concentration factors with values up to 207.4 for Dunaliella tertiolecta and 245.3 for Chlorella sorokiniana were achieved. The final concentration of Dunaliella tertiolecta was 184.58 g L−1 with 81.5% of water content in the sludge. The concentrations obtained were high enough to dispense with further operations for the sludge to be ready for a cell disruption step using steam explosion. Analytic techniques used were dry weight and optical density. For the filtration, experiments were performed using both commercially available and self-prepared membranes, manufactured from Acrylonitrile Butadiene Styrene: a novel polymer in membrane technology, selected to reduce costs. Each of them could perform in a similar way to commercial membranes in a pilot scale high-shear stress membrane module.
    Àrees temàtiques: Zootecnia / recursos pesqueiros Saúde coletiva Química Farmacia Engenharias ii Engenharias i Ciências biológicas iii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Biotecnología Biotechnology & applied microbiology Biodiversidade Agronomy and crop science
    ISSN: 22119264
    Adreça de correu electrònic de l'autor: carles.torras@urv.cat joan.salvado@urv.cat xavier.farriol@urv.cat
    Identificador de l'autor: 0000-0002-3112-3519 0000-0003-2238-6082 0000-0001-6020-5284
    Pàgina final: 124
    Data d'alta del registre: 2024-09-07
    Volum de revista: 33
    Versió de l'article dipositat: info:eu-repo/semantics/submittedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/pii/S2211926418300675
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Algal Research-Biomass Biofuels And Bioproducts. 33 118-124
    Referència de l'ítem segons les normes APA: Haponska, M.; Clavero, E.; Salvado, J.; Farriol, X.; Torras, C.; (2018). Pilot scale dewatering of Chlorella sorokiniana and Dunaliella tertiolecta by sedimentation followed by dynamic filtration. Algal Research-Biomass Biofuels And Bioproducts, 33(), 118-124. DOI: 10.1016/j.algal.2018.05.007
    DOI de l'article: 10.1016/j.algal.2018.05.007
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2018
    Pàgina inicial: 118
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Agronomy and Crop Science,Biotechnology & Applied Microbiology
    Technology
    System
    Sedimentation
    Pilot demonstration
    Performance
    Microalgae
    Membrane filtration
    Flocculation
    Dynamic membrane filtration
    Dewatering
    Biomass
    Biodiesel
    Abs acrylonitrile butadiene styrene
    Abs
    Zootecnia / recursos pesqueiros
    Saúde coletiva
    Química
    Farmacia
    Engenharias ii
    Engenharias i
    Ciências biológicas iii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Ciência de alimentos
    Biotecnología
    Biotechnology & applied microbiology
    Biodiversidade
    Agronomy and crop science
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