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Life Cycle Analysis of Food Waste Valorization in Laboratory-Scale

Author

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  • Tahereh Soleymani Angili

    (Faculty of Geo-Data Science, Geodesy and Environmental Engineering, AGH University of Science and Technology, Mickiewicza Av. 30, 30-059 Krakow, Poland)

  • Katarzyna Grzesik

    (Faculty of Geo-Data Science, Geodesy and Environmental Engineering, AGH University of Science and Technology, Mickiewicza Av. 30, 30-059 Krakow, Poland)

  • Erfaneh Salimi

    (Unit of Environmental Science Technology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Str., Zographou Campus, 15773 Athens, Greece)

  • Maria Loizidou

    (Unit of Environmental Science Technology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Str., Zographou Campus, 15773 Athens, Greece)

Abstract

Among the different alternatives for the production of biofuels, food waste could be a favorable bioenergy source. Using food waste as a feedstock has the potential to meet the expectations of the second generation of biofuels, in terms of environmental savings and revenue-generation, and which, along with other valuable co-products, can contribute to biorefinery profits. This study aimed to investigate the early stages of life-cycle assessment (LCA) for restaurant food waste processed into bioethanol, biomethane, and oil, split over different scenarios. Based on a life cycle inventory analysis, the environmental impacts were assessed using an IMPACT 2002+ methodology. The characterized impacts were then normalized against the average impacts, and the normalized results were weighted and aggregated to provide single score LCA results. The overall findings showed that electricity consumption and condensates included VFAs, as well as enzymes, yeast, and n-hexane, were the main contributors to the environmental burdens in all impact categories. Considering the sensitivity analysis, the results demonstrated that the enzyme dosage loading in the hydrolysis process and n-hexane utilization in the fat extraction process can change the environmental performance, along with the process efficiency. This study can provide an approach to foresee environmental hotspots in the very early developmental stages of food waste valorization into biofuels, and for highlighting drawbacks connected to the implementation of conversion processes at pilot and industrial scales.

Suggested Citation

  • Tahereh Soleymani Angili & Katarzyna Grzesik & Erfaneh Salimi & Maria Loizidou, 2022. "Life Cycle Analysis of Food Waste Valorization in Laboratory-Scale," Energies, MDPI, vol. 15(19), pages 1-17, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:19:p:7000-:d:923604
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    References listed on IDEAS

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    1. Khoshnevisan, Benyamin & Tabatabaei, Meisam & Tsapekos, Panagiotis & Rafiee, Shahin & Aghbashlo, Mortaza & Lindeneg, Susanne & Angelidaki, Irini, 2020. "Environmental life cycle assessment of different biorefinery platforms valorizing municipal solid waste to bioenergy, microbial protein, lactic and succinic acid," Renewable and Sustainable Energy Reviews, Elsevier, vol. 117(C).
    2. Suraj Adebayo Opatokun & Ana Lopez-Sabiron & German Ferreira & Vladimir Strezov, 2017. "Life Cycle Analysis of Energy Production from Food Waste through Anaerobic Digestion, Pyrolysis and Integrated Energy System," Sustainability, MDPI, vol. 9(10), pages 1-15, October.
    3. Tahereh Soleymani Angili & Katarzyna Grzesik & Anne Rödl & Martin Kaltschmitt, 2021. "Life Cycle Assessment of Bioethanol Production: A Review of Feedstock, Technology and Methodology," Energies, MDPI, vol. 14(10), pages 1-18, May.
    4. Liu, Yang & Lyu, Yizheng & Tian, Jinping & Zhao, Jialing & Ye, Ning & Zhang, Yongming & Chen, Lujun, 2021. "Review of waste biorefinery development towards a circular economy: From the perspective of a life cycle assessment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 139(C).
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    Cited by:

    1. Tahereh Soleymani Angili & Katarzyna Grzesik & Wojciech Jerzak, 2023. "Comparative Life Cycle Assessment of Catalytic Intermediate Pyrolysis of Rapeseed Meal," Energies, MDPI, vol. 16(4), pages 1-16, February.
    2. Wojciech Czekała & Tomasz Jasiński & Mieczysław Grzelak & Kamil Witaszek & Jacek Dach, 2022. "Biogas Plant Operation: Digestate as the Valuable Product," Energies, MDPI, vol. 15(21), pages 1-11, November.
    3. Sławomir Obidziński & Magdalena Joka Yildiz & Sebastian Dąbrowski & Jan Jasiński & Wojciech Czekała, 2022. "Application of Post-Flotation Dairy Sludge in the Production of Wood Pellets: Pelletization and Combustion Analysis," Energies, MDPI, vol. 15(24), pages 1-19, December.
    4. Gayathri Priya Iragavarapu & Syed Shahed Imam & Omprakash Sarkar & Srinivasula Venkata Mohan & Young-Cheol Chang & Motakatla Venkateswar Reddy & Sang-Hyoun Kim & Naresh Kumar Amradi, 2023. "Bioprocessing of Waste for Renewable Chemicals and Fuels to Promote Bioeconomy," Energies, MDPI, vol. 16(9), pages 1-24, May.

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