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Potential Energy Savings from Circular Economy Scenarios Based on Construction and Agri-Food Waste in Italy

Author

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  • Patrizia Ghisellini

    (Department of Engineering, University of Naples “Parthenope”, 80143 Naples, Italy)

  • Amos Ncube

    (International PhD Programme/UNESCO Chair “Environment, Resources and Sustainable Development” Department of Science and Technology, University of Naples “Parthenope”, 80143 Naples, Italy)

  • Gianni D’Ambrosio

    (Department of Civil Engineering, University of Salerno, 84080 Salerno, Italy)

  • Renato Passaro

    (Department of Engineering, University of Naples “Parthenope”, 80143 Naples, Italy)

  • Sergio Ulgiati

    (Department of Science and Technology, University of Naples “Parthenope”, 80143 Naples, Italy
    School of Environment, Beijing Normal University, Beijing 100875, China)

Abstract

In this study, our aim was to explore the potential energy savings obtainable from the recycling of 1 tonne of Construction and Demolition Waste (C&DW) generated in the Metropolitan City of Naples. The main fraction composing the functional unit are mixed C&DW, soil and stones, concrete, iron, steel and aluminium. The results evidence that the recycling option for the C&DW is better than landfilling as well as that the production of recycled aggregates is environmentally sustainable since the induced energy and environmental impacts are lower than the avoided energy and environmental impacts in the life cycle of recycled aggregates. This LCA study shows that the transition to the Circular Economy offers many opportunities for improving the energy and environmental performances of the construction sector in the life cycle of construction materials by means of internal recycling strategies (recycling C&DW into recycled aggregates, recycled steel, iron and aluminum) as well as external recycling by using input of other sectors (agri-food by-products) for the manufacturing of construction materials. In this way, the C&D sector also contributes to realizing the energy and bioeconomy transition by disentangling itself from fossil fuel dependence.

Suggested Citation

  • Patrizia Ghisellini & Amos Ncube & Gianni D’Ambrosio & Renato Passaro & Sergio Ulgiati, 2021. "Potential Energy Savings from Circular Economy Scenarios Based on Construction and Agri-Food Waste in Italy," Energies, MDPI, vol. 14(24), pages 1-23, December.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:24:p:8561-:d:705989
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    References listed on IDEAS

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    Cited by:

    1. Dimitra Papadaki & Dimitrios A. Nikolaou & Margarita N. Assimakopoulos, 2022. "Circular Environmental Impact of Recycled Building Materials and Residential Renewable Energy," Sustainability, MDPI, vol. 14(7), pages 1-21, March.
    2. Seif Khiati & Rafik Belarbi & Ammar Yahia, 2023. "Sustainable Buildings: A Choice, or a Must for Our Future?," Energies, MDPI, vol. 16(6), pages 1-5, March.
    3. Roberto Cerchione & Francesco Colangelo & Ilenia Farina & Patrizia Ghisellini & Renato Passaro & Sergio Ulgiati, 2023. "Life Cycle Assessment of Concrete Production within a Circular Economy Perspective," Sustainability, MDPI, vol. 15(14), pages 1-19, July.
    4. Sarah C. Andersen & Harpa Birgisdottir & Morten Birkved, 2022. "Life Cycle Assessments of Circular Economy in the Built Environment—A Scoping Review," Sustainability, MDPI, vol. 14(11), pages 1-31, June.
    5. Patrizia Ghisellini & Amos Ncube & Gloria Rotolo & Chiara Vassillo & Serena Kaiser & Renato Passaro & Sergio Ulgiati, 2023. "Evaluating Environmental and Energy Performance Indicators of Food Systems, within Circular Economy and “Farm to Fork” Frameworks," Energies, MDPI, vol. 16(4), pages 1-38, February.

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