The Municipal Solid Waste Management System with Anaerobic Digestion

Przemysław Seruga
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Przemysław Seruga: Department of Bioprocess Engineering, Wroclaw University of Economics and Business, Komandorska 118/120, 53-345 Wroclaw, Poland

Energies, 2021, vol. 14, issue 8, 1-9

Abstract: This study investigated the applied methods for the collection and treatment of an organic fraction of municipal solid waste with anaerobic digestion (AD), including the effects of selective waste collection system introduction. As the research area, data from a waste treatment plant, which collects waste from about 260,000 inhabitants, was used as the selected waste management plan. Biowaste stream management was emphasized. Thus, research on energy recovery and the characteristics of digestate (nutrient and heavy metals content) obtained from biowaste AD was performed. The results of the studies and their quantitative data were interpreted. A significant discrepancy between the assumptions and the actual situation was revealed (up to 20% year-on-year regarding biowaste). An underestimation of the amount of waste when planning was noted. AD ensures energy recovery from biowaste, which can cover facility electricity needs and material recovery. The digestate might find agricultural usage and become an ecological product. The content of nitrogen (1.5% dry matter ), phosphorus (0.55% dry matter ), potassium (1.0% dry matter ), and organic carbon (16.0% dry matter ) indicate a positive impact on crops. Furthermore, it can improve the economic balance, by replacing costs with sales revenues.

Keywords: biogas; energy recovery; fermentation; organic waste; soil amendment; waste to energy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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