Decarbonizing university campuses: A business model for food waste management at Istanbul Technical University (İTÜ) Ayazağa Campus, Turkey

Kadriye Elif Maçin*, Osman Atilla Arıkan, Mahmut Altınbaş, Anders Damgaard

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Özet

Food waste is a significant environmental issue today, as it contributes to depleting natural resources and greenhouse gas emissions from improper management. To address this, alternative food waste management and recovery strategies must be developed to promote nutrient recirculation and move towards decarbonization. University campuses could play a crucial role in pioneering such strategies, through pilot studies and implementation of effective waste management. The aim of this study is to devise a food waste management strategy that provides a more circular and decarbonized economy. A case example was developed based on ITU Ayazağa Campus, Turkey, with annual separated food waste of 577 tonne per year. A Life Cycle Assessment was conducted using the EASETECH software. Four scenarios were evaluated: anaerobic digestion, composting, incineration, and landfill. Of these, incineration resulted in the highest CO2-eq savings, but lacked decoupling and circularity of resources. Conversely, anaerobic digestion demonstrated the highest circularity and lowest toxicity. Based on these findings, anaerobic digestion was selected for further investigation. Economic transactions for the anaerobic digestion system's business models were analyzed, including revenues, municipality fees, and operating costs. The new economic model is expected to align with circular economy strategies and promote stakeholder collaboration as a significant social outcome.

Orijinal dilİngilizce
Makale numarasıe14316
DergiEnvironmental Progress and Sustainable Energy
Hacim43
Basın numarası2
DOI'lar
Yayın durumuYayınlandı - 1 Mar 2024

Bibliyografik not

Publisher Copyright:
© 2023 American Institute of Chemical Engineers.

Finansman

The authors would like to thank İbrahim Demir for his scientific contribution and the Research Fund of the Istanbul Technical University for its financial support of this research as part of Project ID: 42255. The author, K.E. Maçin, was supported by the Scientific and Technological Research Council of Türkiye 2214/A International Doctoral Research Fellowship Program – during the study. The business model approach in this manuscript was originally inspired by Aarhus University's Circular Bioeconomy PhD course. The authors would like to thank İbrahim Demir for his scientific contribution and the Research Fund of the Istanbul Technical University for its financial support of this research as part of Project ID: 42255. The author, K.E. Maçin, was supported by the Scientific and Technological Research Council of Türkiye 2214/A International Doctoral Research Fellowship Program – during the study. The business model approach in this manuscript was originally inspired by Aarhus University's Circular Bioeconomy PhD course.

FinansörlerFinansör numarası
Scientific and Technological Research Council of Türkiye 2214/A International Doctoral Research Fellowship Program
Aarhus Universitet
Istanbul Teknik Üniversitesi42255

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