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Characterization of Excavated Waste of Different Ages in View of Multiple Resource Recovery in Landfill Mining

Author

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  • Isabella Pecorini

    (DESTEC—Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, via C.F. Gabba 22, 56122 Pisa, Italy)

  • Renato Iannelli

    (DESTEC—Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, via C.F. Gabba 22, 56122 Pisa, Italy)

Abstract

With the aim of examining the forcing factors in postmanagement landfills, in this study, excavation waste from nonhazardous municipal waste landfill in Tuscany was characterized for the first time. The specific objective was to estimate the feasibility of sampling and analyzing the excavated waste in order to define its properties and provide information about possible landfill mining projects. Based on the biochemical methane potential assays, it was shown that the excavated waste had not yet been stabilized (i.e., with a production of 52.2 ± 28.7 NlCH 4 /kgTS) in the landfill, probably due to the low excavated waste moisture content (36% ± 6% w/w). Furthermore, excavated waste has a high calorific value, i.e., 15.2 ± 4.1 MJ/kg; the quantity of combustibles in the industrial shredder waste (16 MJ/kg) was rather modest compared to that of municipal solid waste (20.8 MJ/Kg). In conclusion, during large scale excavation of the landfill, it was possible to evaluate how a dedicated treatment plant could be designed to treat and select waste which might appear in a different category. For excavated industrial waste, detailed mechanical sorting may be convenient for end-of-waste recovery to improve calorific value.

Suggested Citation

  • Isabella Pecorini & Renato Iannelli, 2020. "Characterization of Excavated Waste of Different Ages in View of Multiple Resource Recovery in Landfill Mining," Sustainability, MDPI, vol. 12(5), pages 1-20, February.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:5:p:1780-:d:325894
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    References listed on IDEAS

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    1. Algimantas Bučinskas & Mait Kriipsalu & Gintaras Denafas, 2018. "Proposal for Feasibility Assessment Model for Landfill Mining and Its Implementation for Energy Generation Scenarios," Sustainability, MDPI, vol. 10(8), pages 1-14, August.
    2. Isabella Pecorini & Francesco Baldi & Renato Iannelli, 2019. "Biochemical Hydrogen Potential Tests Using Different Inocula," Sustainability, MDPI, vol. 11(3), pages 1-17, January.
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    Cited by:

    1. Isabella Pecorini & Elena Rossi & Renato Iannelli, 2020. "Bromatological, Proximate and Ultimate Analysis of OFMSW for Different Seasons and Collection Systems," Sustainability, MDPI, vol. 12(7), pages 1-20, March.
    2. Fen Hou & Junjie Du & Ye Yuan & Xihui Wu & Sai Zhao, 2021. "Analysis of Microbial Communities in Aged Refuse Based on 16S Sequencing," Sustainability, MDPI, vol. 13(8), pages 1-13, April.
    3. Inna Pitak & Gintaras Denafas & Arūnas Baltušnikas & Marius Praspaliauskas & Stasė-Irena Lukošiūtė, 2023. "Proposal for Implementation of Extraction Mechanism of Raw Materials during Landfill Mining and Its Application in Alternative Fuel Production," Sustainability, MDPI, vol. 15(5), pages 1-22, March.
    4. Elena Rossi & Isabella Pecorini & Giovanni Ferrara & Renato Iannelli, 2022. "Dry Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste: Biogas Production Optimization by Reducing Ammonia Inhibition," Energies, MDPI, vol. 15(15), pages 1-17, July.

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