Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Simulative Calculations of Food Waste Reduction Using Kineto-transport Models

동력학-전달 모델을 활용한 식품 폐기물 감량 해석

  • Cho, Sun-joo (Department of Environmental Engineering, Soonchunhyang University) ;
  • Kim, Tae-wook (Department of Environmental Engineering, Soonchunhyang University) ;
  • Kwon, Sung-hyun (Department of Marine Environmental Engineering, Engineering Research Institute (ERI), Gyeongsang National University) ;
  • Cho, Daechul (Department of Environmental Engineering, Soonchunhyang University)
  • 조선주 (순천향대학교 에너지환경공학과) ;
  • 김태욱 (순천향대학교 에너지환경공학과) ;
  • 권성현 (경상대학교 해양환경공학과) ;
  • 조대철 (순천향대학교 에너지환경공학과)
  • Received : 2021.03.08
  • Accepted : 2021.05.24
  • Published : 2021.06.30
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Abstract

Food waste is both an industrial and residential source of pollution, and there has been a great need for food waste reduction. As a preliminary step in this study, waste reduction is quantitatively modeled. This study presents two models based on kinetics: a simple kinetic model and a mass transport-shrinking model. In the simple kinetic model, the smaller is the reaction rate constant ratio k1, the lower the rate of conversion from the raw material to intermediate products. Accordingly, the total elapsed reaction time becomes shorter. In the mass transport-shrinking model, the smaller is the microbial decomposition resistance versus the liquid mass transfer resistance, the greater is the reduction rate of the radius of spherical waste particles. Results showed that the computed reduction of waste mass in the second model agreed reasonably with that obtained from a few experimantal trials of biodegradation, in which the microbial effect appeared to dominate. All calculations were performed using MATLAB 2020 on PC.

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References

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