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Production and Characterization of Polyhydroxyalkanoates from Wastewater via Mixed Microbial Cultures and Microalgae

Author

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  • Simone Bagatella

    (Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy)

  • Riccardo Ciapponi

    (Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy)

  • Elena Ficara

    (Dipartimento di Ingegneria Civile e Ambientale, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy)

  • Nicola Frison

    (Dipartimento di Biotecnologie, Università degli Studi di Verona, Via S. Francesco 22, 37129 Verona, Italy)

  • Stefano Turri

    (Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy)

Abstract

In the context of circular economy and sustainable production of materials, this project investigated the feasibility of producing sustainable polyhydroxyalkanoates (PHA) from microalgae and sludge used in the treatment of municipal wastewater. The overall process was studied looking at the main steps: microalgae production, fermentation of the biomass, production and characterization of the PHAs. It was possible to obtain blends of hydroxybutyrate-hydroxyvalerate copolymers with high molecular weights and different compositions depending on the nature of the feedstock (mixed volatile fatty acids). In some cases, almost completely amorphous PHA materials were obtained, suggesting a potential diversification of uses and applications.

Suggested Citation

  • Simone Bagatella & Riccardo Ciapponi & Elena Ficara & Nicola Frison & Stefano Turri, 2022. "Production and Characterization of Polyhydroxyalkanoates from Wastewater via Mixed Microbial Cultures and Microalgae," Sustainability, MDPI, vol. 14(6), pages 1-19, March.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:6:p:3704-:d:776257
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    References listed on IDEAS

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    1. Roberts, Keiron P. & Heaven, Sonia & Banks, Charles J., 2016. "Comparative testing of energy yields from micro-algal biomass cultures processed via anaerobic digestion," Renewable Energy, Elsevier, vol. 87(P1), pages 744-753.
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    Cited by:

    1. Soulayma Hassan & Tien Ngo & Andrew S. Ball, 2024. "Valorisation of Sugarcane Bagasse for the Sustainable Production of Polyhydroxyalkanoates," Sustainability, MDPI, vol. 16(5), pages 1-20, March.

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