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Applicability of Paper and Pulp Industry Waste for Manufacturing Mycelium-Based Materials for Thermoacoustic Insulation

Author

Listed:
  • Hugo Muñoz

    (Department of Ingeniería Mecánica y Metalúrgica, Facultad de Ingeniería, Pontificia Universidad Católica de Chile, Santiago 6904411, Chile)

  • Paulo Molina

    (Millennium Institute on Green Ammonia as Energy Vector, Pontificia Universidad Católica de Chile, Santiago 6904411, Chile)

  • Ignacio A. Urzúa-Parra

    (Department of Ingeniería Mecánica, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins N 3363, Estación Central, Santiago 9170022, Chile)

  • Diego A. Vasco

    (Department of Ingeniería Mecánica, Universidad de Santiago de Chile, Avenida Libertador Bernardo O’Higgins N 3363, Estación Central, Santiago 9170022, Chile)

  • Magdalena Walczak

    (Department of Ingeniería Mecánica y Metalúrgica, Facultad de Ingeniería, Pontificia Universidad Católica de Chile, Santiago 6904411, Chile)

  • Gonzalo Rodríguez-Grau

    (Escuela de Construcción Civil, Pontificia Universidad Católica de Chile, Santiago 6904411, Chile
    Centro Nacional de Excelencia para la Industria de la Madera (CENAMAD), Santiago 9170022, Chile)

  • Francisco Chateau

    (Centro Nacional de Excelencia para la Industria de la Madera (CENAMAD), Santiago 9170022, Chile
    Faculty of Arquitectura, Diseño y Estudios Urbanos, Pontificia Universidad Católica de Chile, Santiago 9170022, Chile)

  • Mamié Sancy

    (Millennium Institute on Green Ammonia as Energy Vector, Pontificia Universidad Católica de Chile, Santiago 6904411, Chile
    Escuela de Construcción Civil, Pontificia Universidad Católica de Chile, Santiago 6904411, Chile
    Centro Nacional de Excelencia para la Industria de la Madera (CENAMAD), Santiago 9170022, Chile)

Abstract

Cellulose and paper produce significant waste such as ash, activated sludge, and sludge from the pulp and paper industry. Depending on the raw material, legislation, and subprocesses, these sludges contain around 30–50% organic matter, mainly composed of less than 0.02 mm cellulose fibers and hemicellulose and lignin. This work used sludge from the pulp and paper industry as a substrate for manufacturing mycelium-based biomaterials using the white rot fungus Trametes versicolor . Chemical and surface analyses revealed the formation of new materials. Acoustic impedance analyses revealed that these materials have a noise reduction coefficient and sound absorption average comparable to extruded polystyrene and polyurethane. In addition, the material’s thermal conductivity was near that of sheep wool. Therefore, the biomaterials fabricated using sludge and Trametes versicolor have the potential to be a game-changer in the industry as promising thermoacoustic insulators.

Suggested Citation

  • Hugo Muñoz & Paulo Molina & Ignacio A. Urzúa-Parra & Diego A. Vasco & Magdalena Walczak & Gonzalo Rodríguez-Grau & Francisco Chateau & Mamié Sancy, 2024. "Applicability of Paper and Pulp Industry Waste for Manufacturing Mycelium-Based Materials for Thermoacoustic Insulation," Sustainability, MDPI, vol. 16(18), pages 1-13, September.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:18:p:8034-:d:1477877
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    References listed on IDEAS

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    1. Shouq Al-Qahtani & Muammer Koç & Rima J. Isaifan, 2023. "Mycelium-Based Thermal Insulation for Domestic Cooling Footprint Reduction: A Review," Sustainability, MDPI, vol. 15(17), pages 1-27, September.
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