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http://dx.doi.org/10.5322/JESI.2021.30.6.429

Simulative Calculations of Food Waste Reduction Using Kineto-transport Models  

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)
Publication Information
Journal of Environmental Science International / v.30, no.6, 2021 , pp. 429-439 More about this Journal
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.
Keywords
Food waste reduction; Kineto-transport model; Biodegradation; MATLAB; Particle shrinking;
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1 Shin, H. S., Song, Y. C., Bae, B. U., 1995a, Anaerobic degradation characteristics of organic waste component (I) : methane conversion, kinetics, particle size effect, . Korean Soc. Environ. Eng., 17, 237-245.
2 Choi, D. W., Lee, W. G., Jang, H. N., 1998, Anaerobic digestion of korean food waste and its mathematical modeling, Proceedings of the Korean Society of Environmental Engineers Conferences, J. Korean Soc. Environ. Eng., 437-438.
3 Korea Environment Corporation, 2018, https://www.keco.or.kr/kr/news/communityid/11/view.do?idx=25953.
4 Park, N. B., Gill, D. S., Lee, H. M., 2001, The characteristics of anaerobic biodegradability by food waste, Korean J. Sanitation., 16, 24-31.
5 Lee, B. S., 2008, Bio-Gasification of food waste and primary sewage sludge using MBT concept, Ph. D. Dissertation, Konkuk University, Seoul, Korea.
6 Owens, J. M., Chynoweth, D. P., 1993, Biochemical methane potential of Municipal Solid Waste (MSW) components, Wat. Sci. Technd., 27, 1-4.   DOI
7 Shin, H. S., Song, Y. C., Bae, B. U., 1995b, Anaerobic degradation characteristics of organic waste (II) : a model for evaluation of rate limiting step, J. Korean Soc. Environ. Eng., 17, 533-542.
8 Glossary of Information and Communication Technology, 2020, http://www.ktword.co.kr/abbr_view.php?nav=&m_temp1=587&id=736.
9 Li, Y., Jin, Y., Borrion, A., Li, H., Li, J., 2017, Effects of organic composition on the anaerobic biodegradability of food waste, Bioresource Technology, 243, 836-845.   DOI