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Development of a System Suitable for an Apartment Complex for the Collective Recovery of Solid Resources from Food Waste: A Study on South Korea

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  • Yong-Woo Jeon

    (Environmental Technology Division, Korea Testing Laboratory, Seoul 08389, Republic of Korea)

Abstract

The installation of food waste disposers has been prohibited in South Korea, due to conflicts with governmental policies that are focused on resource recovery from food waste and concerns about potential damage to the city’s sewer system. However, there is a growing demand for such systems in the country. This study proposes a system for the collective recovery of solid resources from food waste tailored for apartment complexes in South Korea, using an innovative solid–liquid separation technology. In the pilot experiment, 49.60% of the solids fed into the system were recovered as solid matter, confirming its practical applicability. Ultimately, a solid resource collective recovery system suitable for the high-rise apartment residence style of South Korea was developed and applied to an actual apartment complex. The final-stage solids were discharged from the system and processed through bio-drying, subsequently exhibiting a combustible material content of 67.06%, higher heating value (HHV) of 4843 kcal/kg, and lower heating value (LHV) of 3759 kcal/kg; moreover, they have the potential to be repurposed as biomass–solid refuse fuel (bio-SFR), compost, feed, and substrate for biogas production. The proposed food waste disposal system not only aligns with governmental policies, but also facilitates the recovery of high-quality resources from food waste, while providing a sustainable waste management solution.

Suggested Citation

  • Yong-Woo Jeon, 2024. "Development of a System Suitable for an Apartment Complex for the Collective Recovery of Solid Resources from Food Waste: A Study on South Korea," Sustainability, MDPI, vol. 16(13), pages 1-17, July.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:13:p:5665-:d:1427846
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    1. Browne, James D. & Murphy, Jerry D., 2013. "Assessment of the resource associated with biomethane from food waste," Applied Energy, Elsevier, vol. 104(C), pages 170-177.
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