Evaluation of the Food Waste Recovery Systems Using Life Cycle Cost Analysis

음식물류 폐기물 자원회수 방법의 전과정 비용평가

  • Kim, Mi-Hyung (Evaluation of the Food Waste Recovery Systems Using Life Cycle Cost Analysis) ;
  • Lee, Myoung-Joo (Evaluation of the Food Waste Recovery Systems Using Life Cycle Cost Analysis) ;
  • Kim, Tae-Hyeong (Evaluation of the Food Waste Recovery Systems Using Life Cycle Cost Analysis) ;
  • Kim, Sun-Jin (Evaluation of the Food Waste Recovery Systems Using Life Cycle Cost Analysis) ;
  • Hwang, Sun-Jin (Evaluation of the Food Waste Recovery Systems Using Life Cycle Cost Analysis)
  • 김미형 (경희대학교 환경학 및 환경공학과, 환경연구센터) ;
  • 이명주 (경희대학교 환경학 및 환경공학과, 환경연구센터) ;
  • 김태형 (경희대학교 환경학 및 환경공학과, 환경연구센터) ;
  • 김선진 (경희대학교 환경학 및 환경공학과, 환경연구센터) ;
  • 황선진 (경희대학교 환경학 및 환경공학과, 환경연구센터)
  • Published : 2010.10.20

Abstract

The costs of food waste disposal systems, which were dried animal feed, composting, anaerobic digestion, and dryer-incineration, were evaluated from the perspective of global warming and energy or resource recovery. The method of an expanded system boundary was employed in order to compare different by-products. The life cycle costing was analyzed through the whole stages of disposal systems, which were discharge, collection, transportation, treatment, and final disposal, included in the system boundary. The costs and benefits were estimated by considering avoided impacts. Environmental benefits of each system for one tonne of food waste management were estimated based on the carbon price resulting from the greenhouse gas reduction and the price of by-products in a market. This study found that the costs for dryer-incineration scenario were the lowest followed by anaerobic digestion and the benefits of dried animal feed system were the highest. The B/C ratios were 0.26, 0.22, 0.11, and 0.27 for dried feed, composting, anaerobic digestion, and dryer-incineration respectively.

Keywords

References

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