Articles producció científica> Enginyeria Química

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

  • Identification data

    Identifier: imarina:5132675
    Authors:
    Haponska, M.Clavero, E.Salvado, J.Farriol, X.Torras, C.
    Abstract:
    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.
  • Others:

    Author, as appears in the article.: Haponska, M.; Clavero, E.; Salvado, J.; Farriol, X.; Torras, C.;
    Department: Enginyeria Química
    URV's Author/s: Farriol Roigés, Francesc Xavier / Salvadó Rovira, Joan / Torras Font, Carles
    Keywords: Technology System Sedimentation Pilot demonstration Performance Microalgae Membrane filtration Flocculation Dynamic membrane filtration Dewatering Biomass Biodiesel Abs acrylonitrile butadiene styrene Abs
    Abstract: 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.
    Thematic Areas: 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
    Author's mail: carles.torras@urv.cat joan.salvado@urv.cat xavier.farriol@urv.cat
    Author identifier: 0000-0002-3112-3519 0000-0003-2238-6082 0000-0001-6020-5284
    Last page: 124
    Record's date: 2024-09-07
    Journal volume: 33
    Papper version: info:eu-repo/semantics/submittedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/pii/S2211926418300675
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Algal Research-Biomass Biofuels And Bioproducts. 33 118-124
    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
    Article's DOI: 10.1016/j.algal.2018.05.007
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2018
    First page: 118
    Publication Type: Journal Publications
  • Keywords:

    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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