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Challenges in the Valorization of Green Waste in the Central European Region: Case Study of Warsaw

Author

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  • Krystyna Lelicińska-Serafin

    (Faculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, Nowowiejska 20 St., 00-653 Warsaw, Poland)

  • Anna Rolewicz-Kalińska

    (Faculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, Nowowiejska 20 St., 00-653 Warsaw, Poland)

  • Piotr Manczarski

    (Faculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, Nowowiejska 20 St., 00-653 Warsaw, Poland)

Abstract

Expanding green areas in cities results in growth in green waste generation. This study presents the findings of an investigation into green waste from selective collection in a large Central European city (Warsaw, Poland), which can be identified as a valuable biomass resource. The research objective was to identify the properties of garden waste from single-family housing to determine valorization opportunities, emphasizing the utilization of GW as a source of energy. The research yielded several findings, including a notable degree of variability in fuel properties, including moisture content (CV = 30%), lower heating value (CV = 14.3%), and ash content (CV = 62.7/56.2%). The moisture content suggests composting, while the fertilizing properties indicate suitability for anaerobic digestion. The instability of the fuel properties, coupled with the elevated levels of chlorine, sulfur, and moisture, constrains the use of garden waste in thermal processes and alternative fuel production. Pyrolysis could be a viable approach for green waste feedstock, offering value-added products depending on the processing conditions and pre-treatment. Nevertheless, implementing a selective collection system is a critical condition for the optimal utilization of bio-waste, facilitating the quality and property control of green and food waste. This is essential for their effective processing, including energy recovery, thereby contributing to the efficient valorization of biomass.

Suggested Citation

  • Krystyna Lelicińska-Serafin & Anna Rolewicz-Kalińska & Piotr Manczarski, 2024. "Challenges in the Valorization of Green Waste in the Central European Region: Case Study of Warsaw," Energies, MDPI, vol. 17(20), pages 1-22, October.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:20:p:5056-:d:1496648
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    References listed on IDEAS

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    1. Jerzy Bieniek & Błażej Gaze & Bernard Knutel & Krzysztof Rać & Sara Góraj, 2022. "Analysis of the Effectiveness of Green Waste Composting under Hyperbaric Conditions," Sustainability, MDPI, vol. 14(9), pages 1-17, April.
    2. Krystyna Lelicińska-Serafin & Piotr Manczarski & Anna Rolewicz-Kalińska, 2023. "An Insight into Post-Consumer Food Waste Characteristics as the Key to an Organic Recycling Method Selection in a Circular Economy," Energies, MDPI, vol. 16(4), pages 1-13, February.
    3. Fabíola Pereira & Carlos Silva, 2023. "Energetic Valorization of Bio-Waste from Municipal Solid Waste in Porto Santo Island," Clean Technol., MDPI, vol. 5(1), pages 1-26, February.
    4. Jakob Medick & Isabel Teichmann & Claudia Kemfert, 2017. "Hydrothermal Carbonization (HTC) of Green Waste: An Environmental and Economic Assessment of HTC Coal in the Metropolitan Region of Berlin, Germany," Discussion Papers of DIW Berlin 1690, DIW Berlin, German Institute for Economic Research.
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